KR100694763B1 - Construction methods of underground structure adopting concrete-composite crossbeam - Google Patents

Abstract

(a) installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; (b) digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; (c) coupling a plurality of first shear connecting members to the exposed soil wall; (d) an H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the same, a plurality of hoop bars welded to surround the H-shaped steel, and integrally with the H-shaped steel to bury at least a portion of the web and the lower flange. And a concrete member formed of a concrete composite beam including at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement and having a plurality of second shear connection members coupled to one end of the H-beam, Positioning the second shear connecting member to be embedded in the basement outer wall and fixing the other end to the pillar pile; (e) fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; (f) installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And (g) pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall. A construction method is disclosed.

Concrete composite beams, columns, retaining walls, slabs, underground structures

Description

Construction method of underground structure adopting concrete-composite crossbeam

1 to 3 is a cross-sectional view showing a slab structure by the underground structure construction method according to the prior art.

Figure 4 is a cross-sectional view showing the concrete composite beams used in the construction of underground structures according to a preferred embodiment of the present invention.

5 is a cross-sectional view showing the concrete composite beams used in the construction of underground structures according to another preferred embodiment of the present invention.

Figure 6 is a cross-sectional view showing a concrete composite beams used in the construction of underground structures according to another preferred embodiment of the present invention.

7 is a cross-sectional view showing the concrete composite beams used in the construction of underground structures according to another preferred embodiment of the present invention.

Figure 8 is a side view showing the concrete composite beams used in the construction of underground structures according to another preferred embodiment of the present invention.

9 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

10 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

11 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

12 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

13 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

14 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

15 is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

16a and 16b is a cross-sectional view showing a concrete composite beam according to another preferred embodiment of the present invention.

17 is a side view showing a concrete composite beam according to another preferred embodiment of the present invention.

18 is a front view of the concrete composite beam shown in FIG.

19 is a cross-sectional view of FIG. 17.

20 is a side view showing a construction state using the concrete composite beam of Figure 17.

21 is a flowchart illustrating a method of constructing an underground structure according to a preferred embodiment of the present invention.

FIG. 22 is a cross-sectional view illustrating a state in which a first shear connection member is coupled to an exposed soil wall after performing a first trench in a method for constructing an underground structure according to an exemplary embodiment of the present invention.

FIG. 23 is a cross-sectional view illustrating a state in which a concrete composite beam and formwork and reinforcing bars are installed on a retaining wall in an underground structure construction method according to an exemplary embodiment of the present invention.

24 and 25 are a cross-sectional view and a cross-sectional view for explaining the appearance of placing the slab-outer wall of the basement at the same time in the underground structure construction method according to an embodiment of the present invention.

FIG. 26 is a cross-sectional view illustrating the construction of a slab and a basement outer wall of a second basement layer in the method for constructing an underground structure according to an exemplary embodiment of the present invention. FIG.

27 and 28 are a cross-sectional view and a cross-sectional view for explaining the process of simultaneously placing the slab-outer wall of the basement layer in the underground structure construction method according to another embodiment of the present invention.

29 is a plan sectional view showing a state in which a concrete composite beam is installed on a retaining wall in an underground structure construction method according to another embodiment of the present invention.

30 and 31 are a plan view and a cross-sectional view showing a connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

32 and 33 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

34 and 35 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

36 and 37 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

38 and 39 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

40 and 41 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

42 and 43 are a plan view and a cross-sectional view showing another connection configuration of the concrete composite beam in the underground structure construction method according to an embodiment of the present invention.

44 and 45 are a plan view and a cross-sectional view showing the connection configuration between the concrete composite beams in the underground structure construction method according to an embodiment of the present invention.

46 and 47 are a cross-sectional view and a plan view showing the configuration of the reinforcing bars in the slab in the construction method of the underground structure using a concrete composite beam according to an embodiment of the present invention.

48 and 49 are cross-sectional views and plan views showing still another configuration of reinforcing bars in the slab in the method of constructing the underground structure using a concrete composite beam according to an embodiment of the present invention.

50 and 51 are a cross-sectional view and a plan view showing another configuration of the reinforcing bars in the slab in the method of construction of underground structures using a concrete composite beam according to an embodiment of the present invention.

52 and 53 are cross-sectional views and plan views showing still another configuration of reinforcing bars in the slab in the method of constructing the underground structure using a concrete composite beam according to an embodiment of the present invention.

54 and 55 are cross-sectional views and planar cross-sectional views showing a state in which an earth wall and an installation pile are installed in the method for constructing an underground structure according to another embodiment of the present invention.

56 is a cross-sectional view illustrating a state in which a concrete composite beam is installed on an extraction pile in a method of constructing an underground structure according to another embodiment of the present invention.

57 is a cross-sectional view showing the appearance of the slab-outer wall of the basement at the same time in the method for constructing the underground structure according to another embodiment of the present invention.

58 is a cross-sectional view illustrating the construction of a slab and a basement outer wall of the second basement layer in the method for constructing an underground structure according to another embodiment of the present invention.

59 is a front view of the concrete composite beam according to another embodiment of the present invention.

60 is a plan sectional view showing a column construction process of the concrete composite beam of FIG. 59.

FIG. 61 is a view similar to FIG. 60, and is a plan sectional view showing a column construction process using a concrete composite beam according to another embodiment.

The present invention relates to a construction method of underground structures, and more specifically, to the construction of underground structures that can effectively resist earth pressure by connecting concrete composite beams that have a high compressive resistance and do not require a separate fireproof coating to columns and wall walls. It is about a method.

When building, the basement is constructed in various necessities, and the compressive force of earth pressure is applied to the underground structure of the basement. This earth pressure increases as its depth increases.

In general, H-beams are widely used to support slabs, which are floors or ceilings of each floor of a building. That is, as shown in Figure 1, the H-shaped steel beam 12 and the slab 11 forms a slab structure (10).

The height of each floor of the building is the height of the interior space plus the height of the slab structure 10. That is, as the height of the slab structure 10 is reduced, the height of each layer may be reduced. Therefore, even if the building of the same number of floors, as the height of the slab structure 10 is smaller, the height of the floor is smaller, the construction cost is reduced.

The height H of the slab structure 10 is obtained by adding the height H1 of the H-shaped steel beam 12 and the height H2 of the slab 11. When the height H1 of the H-shaped steel beam 12 or the height H2 of the slab 11 is reduced in order to reduce the height H of the slab structure 10, the supporting force or the bending resistance of the slab structure 10 becomes weak. There is a problem that affects the safety of the structure. Here, unexplained reference numeral 11a is a reinforcing bar reinforcement to the slab (11).

In addition, if the size of the H-beams 12 is reduced in order to reduce the height H of the slab structure 10, in this case, the cross-sectional area of the H-beams 12 'is also reduced, thereby compressing and bending stress acting in the longitudinal direction. There is a problem that is vulnerable to.

In order to solve this problem, as shown in FIG. 2, the deck plate 14 having the groove 14a corresponding to the upper flange 12a of the H-beam 12 is provided in the H-beam 12. After that, a method of manufacturing the slab structure 15 by pouring concrete has been proposed.

The slab structure 15 has an advantage that the height is reduced by the depth of the groove (14a). However, while the slab structure 15 is effective for the stress acting in the direction A perpendicular to the slab 13, the groove 14a is not effective for the stress acting in the direction B parallel to the slab 13. Since the thickness of the slab 13 is thin, there is a disadvantage that the shear stress and the bending stress are largely concentrated and also susceptible to the compressive force.

3 is a cross-sectional view showing a slab structure 19 including a cradle 16 welded to the web 12b of the H-shaped steel beam 12 and a deck plate 17 installed on the cradle 16. That is, the slab which welds the cradle 16 to the web 12b and installs the deck plate 17 on the cradle 16 to cast concrete so that a predetermined portion of the H-beam 12 is embedded in the concrete. It is a structure 19.

The slab structure 19 has an advantage of being structurally safe compared to the slab structure 15 of FIG. However, the process of welding the cradle 16 to the web 12b has to be additionally performed, and if the welding portions of the cradle 16 and the web 12b are not firm, there is a problem that seriously affects the safety of the structure. .

On the other hand, the slab structures are vulnerable to fire because the H-beam is exposed to the outside. That is, the high heat due to the fire is transmitted to the H-shaped steel as it may cause a problem that the H-shaped steel is deformed. To prevent this, the exposed H-beams must be treated with a separate fireproof coating.

On the other hand, the H-shaped steel beams are connected to each other by welding or using a fastening member such as a bolt. However, this method may be corroded because the connection part of the H-beam is directly exposed to the outside, and in particular, the connection part may be easily damaged and deformed in case of fire.

In addition, since the reinforcing bars are not continuously arranged in the portions where the H-shaped steel beams 12 are connected to each other, these connection portions are structurally unstable.

On the other hand, the outer wall of the underground structure is usually installed in the earth wall.

As an example of such a wall construction, pile pile plate wall which sandwiches a pile plate between piles while driving piles such as H-beams at regular intervals and proceeds with excavation, and casts wall walls with concrete at the construction site. Cast In Place Pile (CIP) is a typical example. In addition, there are Soil Cement Wall (SCW) and Diaphragm Wall.

In addition, as a method of supporting the earth pressure against the retaining wall when constructing the underground structure, using an anchor method using a steel nail, tie rods, earth anchor, etc. Strut method.

As one of the methods of constructing the underground structure, the first step of installing the retaining wall along the building boundary line and putting the center pile at the location of the building pillar, and forming the first rim beam called so-called bandage in contact with the inner side of the retaining wall after the first bursting. A second step of installing a bracket for mounting the end of the beam while supporting the formwork for the work, a third step of establishing the first frame beam forming formwork on the bracket, and a shear connecting member fixed at one end A fourth step of placing the beam so that the shear connection member is located in the frame beam construction formwork and fixing the other end of the beam to a center pile, and a fifth process of reinforcing reinforcing bars in the first frame beam formwork; Placing concrete in the formwork so that the shear connection member fixed to one end of the reinforcement and beams are embedded together, the retaining wall, the rim beam and There has been proposed a method including a sixth step of allowing the beams to be integrally coupled, and a step of repeating the second to sixth steps as many times as necessary.

Here, after repeating the process of constructing a separate rim beam and installing the beams while proceeding the sequential sequential, when the installation of the rim beams and beams is completed, the slab is subsequently laid and the beams corresponding to the basement floor Placing the basement outer wall sequentially from the bottom up.

In order to install the beams corresponding to each basement, the beam connecting plate must be pre-installed and the rim beam concrete needs to be cast, which can be cumbersome.

Meanwhile, according to another underground structure construction method, after driving the support column and the support column, the construction of the ground structure part that connects the support column and the support column to the ground floor slab in sequence is undertaken. In the lower part, the construction of the underground structure will be undertaken.

In this method, after all the basement slabs are placed in sequence, the basement outer walls are to be poured up from the bottom layer, which can be cumbersome due to the double process.

The present invention has been made to solve the above problems, an object of the present invention is to provide a method for constructing underground structures using concrete composite beams that can effectively reduce the height of the structure without affecting the safety of the structure.

Another object of the present invention is to provide a method for constructing an underground structure using a concrete composite beam that can effectively resist the compressive stress and bending stress due to earth pressure.

Still another object of the present invention is to provide a method for constructing an underground structure using a concrete composite beam, which does not need to have a separate fireproof coating or corrosion resistant coating on the H-beam.

Still another object of the present invention is to provide a method for constructing an underground structure using a concrete composite beam that can smoothly transmit compressive force to a column, a retaining wall, and a neighboring beam at a connection portion.

Another object of the present invention is to proceed with the trench for the construction of underground structures and at the same time to install a concrete composite beam and formwork to reverse the stratum slab and the basement outer wall of the connecting plate of the rim beam (belt) and concrete composite beam It is to provide a method of construction of underground structures that do not require installation.

It is another object of the present invention to provide a method of constructing an underground structure that can strengthen the earth pressure supporting structure for the retaining wall and at the same time shorten the air by placing the stratified slab and the underground outer wall together.

In order to achieve the above object, the construction method of the underground structure according to the present invention comprises the steps of: installing a retaining wall including an H pile along the boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. And a support for supporting a deck plate placed thereon, and supporting a concrete composite beam having a plurality of second shear connecting members coupled to one end of the H-beam, such that the second shear connecting member may be embedded in the basement outer wall. Securing the other end to the column pile while positioning the same; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured and simultaneously curing and curing the slab of the first basement layer and the basement outer wall.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper flange and the lower flange to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. And a support reinforcing bar having a support for supporting the support, and a fixing part embedded inwardly from an upper surface of the concrete member, and an extension part extending laterally along the upper surface of the concrete member from the fixing part. Concrete cover with a plurality of second shear connecting members coupled to one end of the section steel Supporting the haptic steel beam, positioning the second shear connecting member to be embedded in the basement outer wall and fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall. Is provided.

Preferably, the fixing part of the reinforcing bar is extended in parallel with the web of the H-shaped steel is fixed to the web.

Preferably, the fixing portion of the reinforcing bar is extended so as to be inclined at a predetermined interval with the web of the H-shaped steel is fixed to the lower flange of the H-shaped steel.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The cone to interconnect the auxiliary reinforcing bars and the first and second auxiliary reinforcing bars. And a binding reinforcing bar embedded in the crete member, and supporting a concrete composite steel beam having a plurality of second shear connecting members coupled to one end of the H-beam so that the second shear connecting member can be embedded in the basement outer wall. Securing the other end to the column pile while setting the position; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall. This is provided.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement It includes the support for supporting the above tension / compression reinforcement, and the deck plate is installed on the upper surface of the concrete member, and supports the concrete composite steel beam in which a plurality of second shear connection member is coupled to one end of the H-beam And positioning the second shear connection member to be embedded in the basement outer wall. The other end to the fixing to the pillar file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall. Is provided.

Preferably, the tension / compression reinforcement includes at least one exposed reinforcing bar which is not embedded in the concrete member, and further includes a mounting member fixed to an upper edge of the hoop reinforcement so that the exposed reinforcing bar is coupled and supported.

The mounting member has an end portion of which is fixed to the upper edge of the hoop reinforcement, and forms an 'L' shape so that the exposed rebar is fixed to the corner inner circumference.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars installed at predetermined intervals along a longitudinal direction to surround the lower flange of the H-beam, and the hoop rebars. At least one tension / compression rebar fixed in a longitudinal direction, a support for supporting a deck plate installed on and placed on the upper surface of the concrete member, a connecting plate connected to an end of the H-beam, and a front surface of the connecting plate A plurality of extension bars having one end fixed and extending in a longitudinal direction, an auxiliary hoop reinforcing bar and binding the plurality of extension bars at a predetermined interval, and at least one compressive force transmission plate coupled to the other end of the extension bar; At least the web, the hoop reinforcement, the auxiliary hoop reinforcement and the connecting plate And a concrete composite beam including a concrete member integrally formed with the H-beam so that the tension / compression rebar, at least one of the extension bars, and the lower flange are embedded, so that the compressive force transmission plate is embedded in the basement outer wall. Securing the other end to the column pile while positioning the other end; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. Coupling one end of the H-beam of the concrete composite steel beam to the H pile of the retaining wall while supporting the deck plate disposed thereon and fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shape consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-beam, and at least one of the webs. A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. Concrete including a joint reinforcing bar having a support for supporting a; and a fixing portion embedded in the interior from the upper surface of the concrete member and extending from the fixing portion to extend laterally along the upper surface of the concrete member One end of the H-beam of the section beam is connected to the H pile of the retaining wall. Combining and securing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The auxiliary reinforcing bar and the first and second auxiliary reinforcing bars One end while the other end thereof for coupling to H file of the retaining wall of concrete composite beams H-beams of a beam comprising a reinforcement which is embedded coupling provided in the concrete member comprising the steps of fixing to the pillars file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the present invention, installing the retaining wall including the H pile along the boundary of the building to be constructed, and putting the pillar pile in a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement One end of the H-shaped steel of the concrete composite steel beam comprising the above tension / compression reinforcement and a support for supporting a deck plate placed on the upper surface of the concrete member, and the other end thereof Securing to the pillar file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the invention, the step of installing the retaining wall along the boundary line of the building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. Installing and fixing a concrete composite steel beam comprising a support for supporting a deck plate placed thereon and having a plurality of second shear connection members coupled to one end of the H-beam between the traction file and the pillar file; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the invention, the step of installing the retaining wall along the boundary line of the building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; An H-shape consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-beam, and at least one of the webs. A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. And a joint reinforcing bar having a support for supporting a support, a fixing part embedded inwardly from an upper surface of the concrete member, and an extension part extending from the fixing part to extend laterally along the upper surface of the concrete member. Concrete apparel with a plurality of second shear connection members coupled to one end of the Information beams comprising the fixed and installed between the collection file, and the file pillar; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the present invention, a step of installing a retaining wall along the boundary line of the building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The auxiliary reinforcing bar and the first and second auxiliary reinforcing bars Includes a coupling provided in the reinforcement which is embedded in concrete members and the steps of the fixed installation between the collection file, and the file information pillar once the concrete composite beams in the plurality of second connecting members coupled to the front end of the H-beams; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to another embodiment of the invention, the step of installing the retaining wall along the boundary line of the building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement The above-mentioned tension / compression reinforcement, and the concrete composite steel beam comprising a support for supporting the deck plate installed on the upper surface of the concrete member and a plurality of second shear connecting member is coupled to one end of the H-beams Installing and fixing between the pile and the pillar pile; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And pouring concrete into the formwork and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer.

According to the present invention, the step of installing the formwork and reinforcing the slab of the first basement and the basement outer wall, the step of reinforcing reinforcing bars on both sides of the H-beam of the concrete composite beam; And arranging the connecting bars so that at least one end thereof is adjacent to the reinforcing bars so as to transfer the axial stress of the reinforcing bars on one side of the H-beam to the reinforcing bars on the opposite side.

Preferably, the connecting reinforcing bar is disposed across the upper flange of the H-beam of the concrete composite beam.

As an alternative, the connecting reinforcing bars are arranged to penetrate through holes formed in the web of the H-beam of the concrete composite beam.

As an alternative, the connecting bars are U-shaped, the ends of which are proximate to the ends of the reinforcing bars respectively adjacent to each other, the center of which is installed or fixed close to the H-beams.

As an alternative, the connecting rebar is L-shaped, one end of which is proximate to the end of the reinforcing bar, and the other end thereof is installed or fixed to be close to the H-beam of the concrete composite beam.

According to the present invention, the fixing of the concrete composite beam, the step of installing a coupling plate to extend laterally on the side of the pillar pile; And coupling the exposed other end of the web of the H-beam of the concrete composite beam with the coupling plate.

Preferably, the pillar pile is provided with a welding plate, and at least one end of the tension / compression bar is welded to and supported by the welding plate.

Preferably, the pillar pile is provided with a coupler having a recess, and an end of at least one of the tension / compression bars is welded while being inserted into the recess.

Preferably, the tension / compression reinforcement of the concrete composite beam, the exposed reinforcing bar is not embedded in the concrete member; And a buried reinforcing bar embedded in the concrete member, wherein the exposed reinforcing bar is located at a position relatively higher than the surface of the upper flange of the H-beam, thereby interfering with another neighboring concrete composite steel beam connected to the pillar pile. I never do that.

Preferably, a cut opening is formed at the exposed end of the web of the concrete composite beam so that the reinforcing bar of another neighboring concrete composite steel beam connected to the pillar pile passes through the opening.

According to the present invention, the concrete member may form a cross section of a trapezoidal shape having an upper surface wider than a lower surface.

Preferably, the concrete composite beam may further include a cover member installed in the longitudinal direction to surround the side and bottom of the concrete member.

More preferably, the cover member is made of a synthetic resin containing carbon fiber FRP or glass fiber FRP.

Hereinafter, a method of constructing an underground structure that supports soil pressure together with slabs by connecting concrete composite beams that do not require a fireproof coating to a column and a retaining wall, which may be used simultaneously as a bending and compression material according to each preferred embodiment of the present invention, is attached. It will be described in detail with reference to the drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Figure 4 is a cross-sectional view showing a concrete composite beam according to a preferred embodiment of the present invention.

Referring to FIG. 4, the concrete composite beams are formed of H-shaped steel 12, a hoop rebar 20 installed at predetermined intervals in the H-shaped steel 12, and a concrete member to fill at least a portion of the H-shaped steel 12. (30).

The H-beam 12 includes an upper flange 12a and a lower flange 12c arranged side by side and a web 12b connecting the upper and lower flanges 12a and 12c to each other.

Preferably, at least one of the lower flange 12c or the web 12b of the H-shaped steel 12 has a stud 57 embedded in the concrete member 30 protruding. The stud 57 further strengthens the coupling of the H-shaped steel 12 and the concrete member 30. More preferably, a plurality of through-holes are formed in the web 12b of the H-shaped steel 12 so as to soak the concrete during pouring to enhance the adhesion of the concrete member 30.

The hoop rebar 20 is welded to the H-shaped steel 12 to surround the H-shaped steel 12 at predetermined intervals along the longitudinal direction of the H-shaped steel 12. Preferably, both ends of the hoop rebar 20 are welded and fixed to the upper flange 12a. The hoop rebar 20 serves to evenly distribute the compressive force acting in the longitudinal direction of the H-beam 12 over the cross section of the H-beam 12, and to resist the shear force acting perpendicular to the cross section.

The concrete member 30 is formed to be integral with the H-shaped steel 12 along the longitudinal direction of the H-shaped steel 12, and is preferably formed to fill at least a portion of the web 12b and the lower flange 12c. . Preferably, the cross section of the concrete member 30 has a trapezoidal shape whose upper surface is wider than the lower surface. Since the upper surface of the concrete member 30 is wider than the lower surface there is an advantage that the area on which the deck plate 55 can be mounted becomes wider as will be described later.

Preferably, the concrete member 30 is formed to embed at least a portion of the web 12b and the lower flange 12c therein.

The concrete member 30 effectively resists the bending stress and the compressive force acting in the axial direction together with the H-shaped steel 12. In addition, the concrete member 30 to effectively respond to the bending stress by increasing the cross-sectional area of the concrete composite beams (100).

In addition, since the H-shaped steel 12 is embedded in the concrete member 30 and the slab concrete, which will be described later, the H-shaped steel 12 is not exposed to the outside and thus does not require a separate fireproof coating treatment. This is a point that can greatly improve the fire resistance of the structure constructed by the concrete composite beams 100 of the present invention.

Preferably, the upper surface of the concrete member 30 is formed to have a predetermined roughness. This is to increase the bonding force with the slab cast on the upper surface.

The concrete composite beam may include tensile / compression reinforcing bars 51 and 52 arranged in the longitudinal direction in the concrete member 30. The tension / compression reinforcement 51, 52 is to resist the tensile stress and compressive stress acting on the concrete composite steel beam 100. Preferably, the tensile / compression reinforcing bar is composed of exposed reinforcing bar 51 and the buried reinforcing bar 52 embedded therein without being embedded in the concrete composite steel beam 100, more preferably they are hoop reinforcement (20) It is welded to the inner side or fixed by fastening means such as wire. This tension / compression rebar not only maintains the spacing of the hoop rebar 20 but also serves as a support for resisting tensile and compressive stress as described above. In this embodiment, although the exposed reinforcing bar 51 and the embedded reinforcing bar 52 is illustrated, the present invention is not limited thereto.

Preferably, when the exposed reinforcing bar 51 is located on one side of the upper flange 12a, the buried reinforcing bar 52 is located between the lower flange 12b and the hoop rebar 20. According to the embodiment of the present invention, the position of the exposed rebar 51 may be changed to the upper or lower portion of the upper flange 12a as necessary.

Preferably, the concrete member 30 is provided with a support 53 on which the deck plate 55 is placed and supported thereon. The support 53 includes a bracket 53a for supporting the deck plate 55 and a buried member 53b formed integrally with the bracket 53a and embedded in the concrete member 30.

Preferably, the bracket 53a is installed at the upper edge portion of the concrete member 30, and more preferably a shape corresponding to the upper edge shape of the concrete member 30, for example, a rectangular “L” shaped cross section. Achieve. More preferably, the bracket 53a may be installed so that the outer surface thereof is continuous with the outer surface of the concrete member 30 without protruding to the outside for aesthetic appearance.

5 to 8 show concrete composite beams according to another preferred embodiment of the present invention. Here, the same reference numerals as in the above-described drawings indicate the same members.

Referring to FIG. 5, the concrete composite beams according to the present embodiment have a rectangular cross section of the concrete member 31. The rectangular concrete composite beam makes it easy to manufacture formwork. In addition, the bracket 54a of the support 54 may be installed to protrude laterally from the top edge of the concrete member 31.

The exposed reinforcing bar 51 'of the concrete composite beam shown in FIG. 6 is located at a height between the upper surface of the concrete member 31 and the upper flange 12a. This is to avoid interference with neighboring concrete composite beams as will be described later.

As another concrete composite beam beam embodiment, as shown in FIG. 7, an exposed tension / compression rebar 51 ″ may be positioned on an upper inner surface of the hoop rebar 21 in which the bent portion 51a is formed. In this case, the exposed reinforcing bar 51 "is located at a position relatively higher than the surface of the upper flange 12a of the H-beam 12 so that it does not collide with the H-beam of the adjacent concrete composite steel beam. In this case, the exposed reinforcing bars 51 " can be continuously installed and can effectively support the stress.

8 is a front view of a concrete composite beam according to another embodiment of the present invention. Here, the hoop reinforcing bar (refer to 20 of FIG. 4) is omitted for convenience.

In the concrete composite beam of the present embodiment, the concrete member 31 is not formed near the both ends of the H-shaped steel 12 is maintained in an exposed state. This is to interconnect the concrete composite beam as described below.

In addition, at least a portion of the exposed web 12b of the H-beam 12 is cut to form an opening 18, which is the upper tension / compression reinforcement of the adjacent concrete composite beam when interconnecting the concrete composite steel beam. This is for allowing the opening 18 to penetrate.

9 to 16 show the construction of a concrete composite beam according to another preferred embodiment of the present invention. Here, the same reference numerals as in the above-described drawings indicate the same members.

First, referring to FIG. 9, the concrete composite beam according to the present embodiment includes a joint reinforcing bar 150 extending in both directions from the web 12b of the H-beam 12.

The joint reinforcing bar 150 is for reinforcing and reinforcing a joint with a slab reinforcing bar (not shown) installed on a concrete composite steel beam, and transmits the stress acting on one side to the other side of the H-shaped steel web without a separate connecting bar Function Preferably, an extension portion 150a extending from both sides of the web 12b of the H-shaped steel 12 in parallel with the slab, and downwardly extending in parallel with the web 12b, from the upper surface of the concrete member 31. Including the fixing portion 150b is embedded in, preferably form an "L" shape. More preferably, the fixing part 150b may be fixed to the web 12b by welding or the like.

The joint reinforcing bar 150 may be selectively installed to be in contact with or between the hoop reinforcing bars 20, and may be coupled to each other by welding or the like when contacting the hoop reinforcing bar 20.

In addition, the joint reinforcing bar 150 is embedded into the slab when installing the deck plate and the slab as described later to maintain the binding with the slab more firmly.

According to another embodiment of the present invention, preferably, the concrete composite steel beam having the joint reinforcing bar is not provided with a separate stud for increasing the binding force with the concrete member 31, instead of the concrete member ( 31) can increase the binding strength.

As such an example, as shown in FIG. 10, the joint reinforcing bar 150 'is extended from the web 12b of the H-beam 12 to both sides parallel to the slab 150'a, and Fixing part 150b which extends downwardly at a predetermined angle with the web 12b and is embedded in the concrete member 31 with its end joined to the lower flange 12c of the H-shaped steel 12, for example, by welding. Contains').

In this case, the lower flange 12c does not need to be provided with a separate stud, and the binding force with the concrete member 31 may be increased by the fixing part 150b 'of the joint reinforcing bar 150'.

Another method for increasing the binding force to the concrete member is shown in FIG. Referring to FIG. 11, the concrete composite beam of the present embodiment includes a support 54 provided in the concrete member 30, and the support 54 includes a bracket 54a for supporting the deck plate, and the bracket 54a. And a buried member 54b extending integrally to the lower flange 12c of the H-shaped steel 12 so as to be integrally formed with the concrete member 30.

Here, the buried member 54b has an end portion fixed to the lower flange 12c by, for example, welding or the like, and serves as a reinforcing member to increase binding force with the concrete member 31.

FIG. 12, which shows another embodiment of the present invention, shows a concrete composite beam that can effectively resist axial stress while improving the binding force on the concrete member.

According to the present exemplary embodiment, a pair of first and second auxiliary reinforcing bars 181 and 182 are further installed in the concrete member 31 in the longitudinal direction, and the first auxiliary reinforcing bars 181 are hoop reinforcing bars 20. And the second auxiliary reinforcing bar 182 is installed to be inscribed in the web 12b of the H-shaped steel 12. This secondary rebar also effectively resists axial stress.

In addition, the secondary reinforcing bars (181, 182) are interconnected by the binding reinforcing bar 180, the binding reinforcement 180 is both ends of the secondary reinforcing bars (181, 182), or selectively welded It is embedded in the concrete member 31 with it being fixed.

The binding reinforcement 180 may be disposed between the hoop reinforcement 20 at predetermined intervals, but may be fixed in contact with the hoop reinforcement 20. In this case, the binding reinforcement 180 forms a closed reinforcement shape together with the hoop reinforcement 20 to more effectively resist the stress applied in the axial direction.

According to another embodiment of the present invention, both ends of the hoop rebar may be maintained at a higher position or lower position without being fixed or welded to the upper flange of the H-beam.

That is, as shown in FIG. 13, the exposed reinforcing bar 51 'is located under the upper flange 12a, and the hoop reinforcing bar 20' has both ends in contact with the H-beam 12 and is not fixed to the upper flange 12a. It is located low.

Alternatively, as shown in FIG. 14, the exposed reinforcing bar 51 ″ is located above the upper flange 12a, and the hoop reinforcing bar 20 ″ is not fixed in contact with the H-shaped steel 12 at both ends thereof, rather than the upper flange 12b. It is located high up.

Concrete composite steel beam according to another embodiment of the present invention shown in Figure 15 includes a hoop reinforcing bar 190 in the form of 'ㅁ'. Both ends of the hoop reinforcement 190 are in contact with both sides of the web 12b of the H-shaped steel 12 and form a closed type surrounding the lower flange 12c. .

In addition, the upper portion of the hoop reinforcement 190 is exposed without being embedded in the concrete member 31 is embedded in the slab at the time of slab casting can increase the mutual binding force. In this case, it is not necessary to provide a separate joint rebar as described above.

In the present embodiment, a portion where the exposed rebar 51 'needs to be installed may be provided with a mounting member 191 on which the exposed rebar 51' is welded or bound and mounted.

The mounting member 191 has a substantially 'L' shape, the end is fixed or welded to the top of the corner of the hoop reinforcement 190, so that the exposed reinforcement (51 ') is fixed to the corner inner circumference Combined. The mounting member 191 is generally installed along the longitudinal direction, or optionally installed in the area where the exposed reinforcing bar 51 'is installed as necessary.

According to another embodiment of the present invention, as shown in FIG. 16A, the concrete composite shaped beam may include a rectangular cover member 195 that surrounds and protects the concrete member 31.

The cover member 195 is made of a synthetic resin including carbon fiber FRP or glass fiber FRP, and is installed to surround the side and bottom surfaces of the concrete member 31.

Preferably, the cover member 195 may serve as a formwork when manufacturing a concrete composite beam according to the present invention, for example, the cover member 195, including reinforcing bars 52, including H-shaped steel 12, When the support 54, the joint reinforcing bars 150, etc. are installed and the concrete is poured and cured, the concrete composite beams in which the cover member 195 is integrally coated can be obtained.

In this case, the cover member 195 can prevent the concrete composite steel beam according to the present invention from being scratched or damaged during the transport or construction process.

According to another embodiment, as shown in FIG. 16B, a corner member 195 ′ bent along a length direction may be installed at a lower corner corner of the concrete member 31 of the concrete composite beam.

In this case, the corner member 195 'may be made of synthetic resin containing carbon fiber FRP or glass fiber FRP or made of steel. More preferably, at least one stud may be further provided on the corner member 195 'to increase the binding force between the corner member 195' and the concrete member 31.

Although the configurations described with reference to FIGS. 9 to 16 are limited to concrete composite beams having a rectangular cross section, they are equally applicable to concrete composite beams having a trapezoidal cross section as shown in FIG. 4. It must be understood.

The construction of the concrete composite steel beam according to another preferred embodiment of the present invention is shown in Figures 17 to 19. Here, the same reference numerals as in the above-described drawings indicate the same reference numerals.

According to this embodiment, the connecting plate 200 made of a metal material is fixedly installed at an end of the H-shaped steel 12 in a right angle direction, and a plurality of extension rebars are installed in the longitudinal direction on the front surface of the connecting plate 200 One end of 410 is welded and fixed.

The plurality of extension bars 410 extend in parallel with the exposed bar 51 'and the buried bar 52, and are bound to each other by the auxiliary hoop bar 421 at predetermined intervals.

As in the above-described embodiment, the exposed reinforcing bar 51 'and the buried reinforcing bar 52 are bound by the hoop reinforcing bar 20, and both ends of the hoop reinforcing bar 20 are connected to the upper flanges of the H-shaped steel 12. Welding on 12a). Alternatively, the hoop reinforcement may be located above or below the upper flange 12a as shown in FIG. 13 or 14 above without being welded onto the upper flange 12a.

In addition, the exposed reinforcing bar 51 ′ and the buried reinforcing bar 52 positioned in front of the connection plate 200 are also coupled to each other by the closed hoop bar 420.

As described above, the hoop rebars can effectively constrain and resist axial stresses after concrete placement.

At least one compression force transmission plate 430 is installed at the other end of the extension rebar 410 in a right angle direction, for example, by welding.

In the present embodiment, the concrete member 431 is poured in the longitudinal direction to bury a portion of the lower flange 12c and the web 12b of the H-shaped steel 12, the concrete member 431 is the extension reinforcement 410 ) And some of the auxiliary hoop reinforcing bars 421 which bind the same, are also formed to be embedded.

Optionally, at least one stud 440 is attached on the upper flange 12a and / or the lower flange 12c of the H-beam 12 to contribute to increasing the binding force in slab concrete casting.

20 shows a method of coupling the concrete composite beam having such a configuration to a retaining wall or column. As shown, the support bracket 270 is installed on the retaining wall pillar 450 and the concrete composite beam is mounted thereon. At this time, the reinforcing bars 410, 51 'and 52 which are not embedded in the concrete member 431 are arranged in the column concrete placing line 460.

In this state, a deck plate (not shown) for slab construction may be installed between concrete composite beams, reinforced with reinforcing bars, and concrete may be poured to construct columns and slabs at the same time.

Concrete composite beam according to this embodiment allows the beam to be effectively constructed without additional padding or additional H-beam steel when the distance between the pillar and the pillar is relatively wide.

Then, the method of constructing the underground structure using the concrete composite beam as described above will be described.

21 shows a construction method of an underground structure according to an embodiment of the present invention. Underground structure construction method according to the present invention is roughly the installation step wall (S100A), pile construction step (S200A), the first step (S300A), shear connection member installation step (S400A), concrete composite beam and formwork After the installation step (S500A), concrete pouring and curing step (S600A), it is then composed of the steps to repeat the subsequent processes repeatedly with the secondary trench.

Hereinafter, a detailed work process will be described for each step.

FIG. 22 shows a state in which the basement wall 110 is installed along the boundary line of the building to be constructed prior to constructing the underground structure (step S100A).

The construction type of the barrier wall 110 is not limited by the present invention, the barrier wall 110 may be installed in accordance with various methods as described above. The barrier wall 110 may be a small cement wall (SCW), a earth plate barrier wall, or a cement wall (CIP) including a reinforcing steel frame. Hereinafter, all are referred to as "soil walls."

After the installation of the retaining wall 110 is finished, the pillar pile 120, which is H-shaped, is driven and installed around the position of the pillar of the basement layer (step S200A). The pillar pile 120 may be immersed in the soil of the required position using the existing anti-punching method and the after-filling buried method.

Subsequently, when the installation of the pillar pile 120 is completed, as shown in FIG. 22, the primary trench is performed at a predetermined depth (step S300A). Here, the depth of the primary trench is preferably at least the depth of the basement 1 floor, but is not limited thereto.

As the trench proceeds as described above, the upper portion of the retaining wall 110 and the pillar pile 120 is gradually exposed.

Subsequently, when the primary trench is finished to a predetermined depth, a plurality of first shear connection members 130 are installed on the exposed earth wall 110 (step S400A). As described below, the first shear connection member 130 is for increasing the mutual binding force between the basement outer wall and the retaining wall 110 at the time of placing the basement outer wall, and is preferably made of metal based on steel.

Preferably, the first shear connection member 130 is a stud coupled to the earth wall 110 and the support portion to be a support portion, and a wing portion extending in the width direction of the basement outer wall to be embedded in the concrete to increase the binding force (stud) or H-shaped shear connection member obtained by cutting a portion of the H-shaped steel, but is not limited to this embodiment can be produced in various forms of deformation.

The first shear connection member 130 may be coupled to the earth wall 110 by hitting, screw fitting, or welding in various ways, such as a cement wall and a cement wall (see 110 in FIG. 25). Or evenly coupled to the H pile (see 111 in FIG. 25).

Preferably, after removing a part of the wall on the side of the H pile embedded in the retaining wall 110, the stud-type first shear connecting member 130 is joined by welding. In addition, the first shear connection member 130, that is, an anchor bolt, may be coupled to a part of the retaining wall 110 by a hitting method or a screw fitting method.

More preferably, the H-shaped shear connection member obtained by cutting a portion of the H-shaped steel on the side of the H-file embedded in the retaining wall 110 is joined by welding. In this case, since the H-type shear connection member is in contact with the concrete structure in a relatively large area, the supporting force and the binding force can be increased by that much.

When the first shear connection member 130 is completed as described above, as shown in FIG. 23, the concrete composite steel beam for constructing the first basement slab BS1 and the first basement permanent outer wall BW1 as shown in FIG. 23. 100) is supported and installed with the grouping 170 (step S500A). The concrete composite beam beam 100 is positioned in place according to the design as a permanent structural member of the building.

Preferably, an embedded plate 161 is vertically coupled by the welding and / or fixing bracket 162 and the fastening member 163 to the end of the concrete composite beam 100, the embedded A plurality of second shear connecting members 132 are welded to the front surface of the plate 161. In this embodiment, the stud type is illustrated as an example of the second shear connecting member 132, but the present invention is not limited thereto, and various types of shear connecting members may be employed.

The concrete composite beams 100 are positioned to embed the embedded plate 161 and the second shear connecting member 132 at the time of concrete pouring, as will be described later.

In the case of the concrete composite beam shown in FIG. 17, as described above, as shown in FIG. 20, the compressive force transmission plate 430 is positioned to be embedded.

The other end of the concrete composite beam beam 100 is coupled to a column pile (120 of Figure 22) pre-installed at the building pillar position. The combination of the concrete composite beam beam 100 and the pillar pile 120 will be described later.

Subsequently, a formwork 140 corresponding thereto is installed so that the slab BS1 and the underground outer wall BW1 can be poured at the same time. A deck plate (not shown) is installed between neighboring concrete composite beams 100 to construct a slab (BS1) and the corresponding reinforcing bars and connecting bars are disposed in consideration of an appropriate load. The reinforcement configuration of the reinforcing bar will be described later.

More preferably, a part 151 of the reinforcing steel reinforcement of the basement outer wall (BW1) is projected to extend to the outside of the form 140, so that the joint, that is, when the concrete is placed on the outer wall of the basement 2 floor as described later, Do it.

Preferably, the copper bar 170 may support the concrete composite beam beam 100 in the position where the basement outer wall is to be embedded in the basement outer wall. On the other hand, concrete composite beam beam 100 may be supported by the reinforced structure in the basement outer wall.

In the present embodiment, the outer wall BW1 is described to be constructed in one pouring process, but is not limited thereto. As another alternative, the upper part of the outer wall BW1 is first integrally formed with the slab BS1, and the rest is later. The lower portion of the outer wall BW1 may be additionally installed.

As described above, after the installation of the formwork 140 and the reinforcing bar is finished, the concrete is poured and cured for the first basement slab BS1 and the first basement outer wall BW1 (step S600A).

According to the above process, as illustrated in FIGS. 24 and 25, the basement 1 story structure is completed.

Subsequently, the above-described process is repeated repeatedly to construct a structure of two basement levels or additional basement layers.

That is, referring to FIG. 26, a secondary trench is performed to build an additional underground structure. When the second trench is made to a predetermined depth, a plurality of first shear connection members 130 are installed on the exposed earth wall 110.

Then, to install a concrete composite beam (100 ') to form a basement two-layer slab (BS2) and the basement two-layer outer wall (BW2). In addition, as described above, deck plates are installed between adjacent concrete composite beams 100 ', and reinforcing bars and formwork are installed.

Subsequently, concrete is poured and poured into a space corresponding to the basement two-layer slab BS2 and the outer wall BW2 and cured. After the concrete is cured, the formwork is demolished to simultaneously form the second basement slab BS2 and the outer wall BW2.

By repeatedly performing the above process to the desired basement, it is possible to obtain an underground structure in which the slab and the outer wall are poured simultaneously.

27 and 28 show a method of constructing an underground structure according to another preferred embodiment of the present invention.

The construction method of the underground structure according to the present embodiment is also similar to the above-described embodiment, the earthquake wall installation step, column pile construction step, the first digging step, shear connection member installation step, concrete composite beam beam connection step, formwork and It consists of the steps of deck plate installation and reinforcement, concrete placement and curing, followed by repetition of subsequent processes with secondary trenches.

As shown in the drawings, the concrete composite beam beam 100 is directly connected to the H pile 111 in the retaining wall 110 exposed after the first trench. That is, by removing a part of the outer retaining wall of the H pile 111 corresponding to the position where the concrete composite beam beam 100 is to be installed, and then the concrete composite by the welding and / or connecting bracket 164 and the fastening member 165 Fix the end of the section beam (100). The method of combining the concrete composite beams 100 and the H pile 111 is not limited by the present embodiment, and all conventional methods that may be used or inferred in the art may be applied.

According to the present embodiment, a plurality of H piles 111 may be selectively cut to correspond to a position where the concrete composite beam 100 is to be installed at the time of installing the barrier wall 110. In addition, an embedded plate (161 of FIG. 26) may be installed at the end of the concrete composite beam 100 and directly coupled to the retaining wall 110.

Meanwhile, as shown in FIG. 29, when the concrete composite beams 100 are coupled between neighboring retaining wall 110, the space between the retaining wall 110 is jet grouting 110a. Can be reinforced by.

Subsequently, the corresponding formwork is installed so that the slab BS1 and the basement outer wall BW1 can be poured at the same time, and the process of pouring the slab BS1 and the basement outer wall BW1 simultaneously by pouring concrete is the same as described above. Do.

Then, in step S500A, the coupling of the concrete composite beam beam 100 and the pillar pile 120 will be described with reference to FIGS. 30 and 31. In the drawings, only H-shaped steel, exposed steel bars, and concrete members are shown for convenience of description, and the same reference numerals as in the previous drawings indicate the same members.

The first and second concrete composite beams 100a and 100b are vertically coupled to a column pile such as the H-beam 84 constituting the column 80, respectively. The H-beam 84 may be a pillar pile 120 crushed in the step S200A or H-beams separately installed after the basement layer trench. The H-beam 84 is combined with the reinforcement steel and concrete to form the pillar (80).

Specifically, the H-shaped steel 12 of the first concrete composite beams 100a is smaller in size than the H-beams 84 of the pillars 80, and the H-shaped steel 12 of the second concrete composite beams 100b. ) Is the same size. The first concrete composite beams 100a have the same configuration as the concrete composite beams shown in FIG. 5 described above, and the second concrete composite beams 100b have the concrete composite shown in FIG. 7 described above. It has the same configuration as the section beam. The case where the first concrete composite beam 100a is coupled to the flange 84b of the pillar 80 and the second concrete composite beam 100b is coupled to the web 84a will be described.

In order to bond the concrete composite beam and the column, the coupling plate 41a and 41b are installed in the web 84a and / or the flange 84b of the pillar 80 so as to extend laterally. The coupling plates 41a and 41b are coupled to the web 84a and / or the flange 84b by welding or bolts, rivets or the like.

As shown in FIG. 31, the second concrete composite beam 100b includes a coupling plate 41a formed in the web 84a of the pillar 80 and the web 12b of the second concrete composite beam 100b. It can be connected to the column by engaging by fastening means such as bolts 42a.

At this time, since the exposed reinforcing bar 51 "of the second concrete composite beam 100b is located at a height higher than the upper flange 12a, the neighboring first concrete composite beam having the same height as the upper flange 12a. It may extend through the top of the beam 100a without interfering with the upper flange 12a.

The first concrete composite beam 100a fastens the coupling plate 41b formed on the flange 84b of the pillar 80 and the web 12b of the first concrete composite beam 100a, such as a bolt 42b. It can be connected to the column by joining by means. As an alternative, the first concrete composite beam 100a may be welded directly to the flange 84b of the H-beam 84.

In this case, since the size of the first concrete composite beam (100a) is relatively small, the end of the exposed reinforcing bar 51 is cut and fixed to the flange (84b).

Preferably, as shown in FIGS. 32 and 33, the exposed reinforcing bar 51 of the first concrete composite beam 100a is welded to the welding plate 85 installed perpendicular to the flange 84b of the column 80. By doing so, it is more firmly combined.

As another alternative, as shown in FIGS. 34 and 35, the exposed rebar 51 is installed in a coupler 86 installed perpendicular to the flange 84b of the pillar 80 and having a groove corresponding to the exposed rebar 51. The end of can be coupled to the flange 84b by being welded after insertion.

In addition, the end of the embedded reinforcing bar 52 is preferably cut and welded to the flange (84b).

After combining the first and second concrete composite beams (100a, 100b) to the H-beams (84) as described above, the vertical reinforcement 81 and the loop reinforcement 82 and the like to the column 80 to form a formwork After completion, the concrete is poured to complete the column.

36 and 37 illustrate a structure in which a concrete composite beam is connected to a pillar according to another preferred embodiment of the present invention. In the drawings, only H-shaped steel, exposed steel bars, and concrete members are shown for convenience of description, and the same reference numerals as in the above-described drawings indicate the same members.

The exposed end 18 of the web 12b of the first concrete composite beam 130a is formed with a cutout opening 18 as shown in FIG. 8. In addition, the configuration of the second concrete composite beams 130b is the same as that shown in FIG.

In the present embodiment, the first and second concrete composite beams 130a, 130b is coupled to the H-beams 84 of the column 80 is the same as described above. By the way, since the opening 18 is formed in the edge part of the web 12b of the 1st concrete composite steel beam 130a, the exposed reinforcing bars 51L and 51R of the 2nd concrete composite steel beam 130b are the said opening part. It can penetrate 18 and thus does not interfere with the first concrete composite beams 130a. In other words, as shown in FIG. 37, the left exposed reinforcing bar 51L of the second concrete composite beam 130b extends by the side of the H-beam 84 of the column 80, and the right exposed reinforcing bar 51R is It extends through the opening 18 of the first concrete composite beam 130a.

According to the connection method of the present embodiment, since the exposed rebar can be continuously extended without cutting, the reinforcement of the rebar can be improved by that much.

38 and 39 illustrate a structure in which a concrete composite beam is connected to a pillar according to another preferred embodiment of the present invention. In the drawings, only H-shaped steel, exposed steel bars, and concrete members are shown for convenience of description, and the same reference numerals as in the above-described drawings indicate the same members.

In the present embodiment, the pillar pile constituting the pillar is a square steel tube 87. The first and second concrete composite beams 130a and 130b are respectively coupled to side surfaces of the rectangular steel tube 87.

In order to couple the concrete composite beam and the steel tube 87, the side of the steel tube 87 is installed so that the coupling plate (41a, 41b) extends laterally. The coupling plates 41a and 41b are coupled to the side of the steel tube 87 by welding or bolts, rivets, or the like.

Subsequently, the first and second concrete composite beams 130a and 130b are coupled to the steel tube 87 in the same manner as in the above-described embodiment. Similarly, one exposed reinforcing bar 51L of the second concrete composite beams 130b extends along the steel tube 87, and the other exposed reinforcing bar 51R extends out of the opening of the first concrete composite beams 130a. 18) through.

Preferably, the weld plate 85 or coupler 86 described above may be used to couple the exposed rebar to the square steel tube 87.

More preferably, the steel tube 87 may be installed so that a plurality of studs 87a penetrate therein, which not only reinforces the strength by integrating the steel tube 87 and concrete, but also in the concrete composite beam. This prevents the steel tube 87 from tearing.

40 and 41 are rectangular steel tube 88 pillar piles of the first concrete composite beams 100a having the configuration shown in FIG. 5 and the second concrete composite beams 100b having the configuration shown in FIG. 7. Shows the configuration connected to

As described above, since the exposed reinforcing bar 51 "of the second concrete composite beam 100b is located at a height higher than the upper flange 12a, the neighboring first one at the same height as the upper flange 12a. The upper flange 12a of the concrete composite beam 100a is extended without passing through the upper portion thereof.

According to the present embodiment, a reinforcing rib 88a is formed on the inner surface of the rectangular steel tube 88 at the portion where the first and second concrete composite beams 100a and 100b are coupled. The 88a is to prevent the square steel tube 88 from being torn by the concrete composite beams 100a and 100b.

42 and 43 are first concrete composite beams 100a having the configuration shown in FIG. 5 and second concrete composite beams 100b having the configuration shown in FIG. 7 according to another preferred embodiment of the present invention. Is connected to the column. In the drawings, only H-shaped steel, exposed steel bars, and concrete members are shown for convenience of description, and the same reference numerals as in the above-described drawings indicate the same members.

In this embodiment, the pillar pile forming the column is a cylindrical steel tube (89). The first and second concrete composite beams (100a, 100b) are respectively coupled to the side of the cylindrical steel tube (89).

In order to couple the concrete composite beam and the steel tube 89, the side of the steel tube 89 is installed so that the coupling plate (41a, 41b) extends laterally. The coupling plates 41a and 41b are coupled to the side of the steel tube 89 by welding or bolts, rivets, or the like.

Subsequently, the first and second concrete composite beams 100a and 100b are coupled to the steel tube 89 in the same manner as in the above-described embodiment.

As described above, since the exposed reinforcing bar 51 "of the second concrete composite beam 100b is located at a height higher than the upper flange 12a, the neighboring first one at the same height as the upper flange 12a. The upper flange 12a of the concrete composite beam 100a is extended without passing through the upper portion thereof.

According to the present embodiment, reinforcing ribs 89a may be formed on the outer circumferential surface of the cylindrical steel tube 89 to which the first and second concrete composite beams 100a and 100b are coupled. The reinforcement ribs 89a are to prevent the cylindrical steel tube 89 from being torn by the concrete composite beams 100a and 100b.

In the present specification, the concrete composite beam is described as an example of being connected to an H-beam, a rectangular steel tube, and a cylindrical steel tube, but it should be understood that the present invention is not limited thereto and may be connected to pillar files having various structures in the same manner.

In addition, concrete composite beams according to the present invention can be connected to each other, an embodiment thereof is shown in Figures 44 and 45. For convenience, a connection example of the concrete composite beam shown in FIG. 5 is shown, and only H-shaped steel and concrete members are shown in the drawings, and the rest of the members are omitted.

A method of connecting the first concrete composite beams 110a and the second concrete composite beams 110b will be described with reference to the drawings.

The first concrete composite beams 110a are exposed without the concrete member 31 being formed near the end of the first H-beams 12 to be coupled to the neighboring second concrete composite beams 110b. Preferably, the end of the first H-shaped steel 12 is formed with a fastening hole into which the bolt 42 is inserted.

A recessed part 70 in which a part of the second concrete member 31 ′ is not formed is formed at a coupling portion of the second concrete composite beams 110b coupled to the first concrete composite beams 110a. An end portion of the first H-shaped steel 12 is inserted into the recess 70.

In addition, the second H-beam 12 'is provided with a coupling plate 40 for coupling with the first H-beam 12, preferably, the coupling plate 40 is a second H-beam 12' Extend laterally from the web 12b '. The coupling plate 40 may be coupled to the web 12b 'using fastening means such as welding or bolts.

In connecting the first and second concrete composite beams (110a, 110b), first ends of the first H-beams 12 of the first concrete composite beams (110a) the second concrete composite beams ( It inserts into the recessed part 70 formed in 110b).

Then, the coupling plate 40 and the web 12b of the first H-shaped steel 12 are fastened to each other. The coupling plate 40 may be fixed to the first web 12b by welding or fastening means such as bolts 42.

When the concrete composite beams are connected to each other as described above, in order to prevent the exposed tensile / compressive bars located on the left and right sides of the H-beam 12 from interfering with the adjacent concrete composite beams, for example, the first concrete composite beams ( At the end of the H-shaped steel 12 of 110a, an opening 18 cut out as shown in FIG. 8 is formed, and at the same time, an exposed reinforcing bar of the second concrete composite beam 110b that is coupled as shown in FIG. 51 'is provided at a position corresponding to the opening 18, that is, at a height between the upper surface of the concrete member 31 and the upper flange 12a.

When the first and second concrete composite beams 110a and 110b having such a structure are coupled to each other, the first concrete composite beams adjacent to the exposed reinforcing bar 51 of the second concrete composite beams 110b ( Since it penetrates through the opening 18 of 110a, the exposed reinforcing bar 51 can be continuously maintained without interfering with the H-beam.

As another alternative, a concrete composite beam may be employed as shown in FIG.

Next, the configuration of the reinforcing bar reinforcement to the slab in step S500A will be described in detail. 46 and 47 show reinforcement in the slab in accordance with a preferred embodiment of the present invention. In FIG. 47, only the rebar and the H-beam are shown, and the remaining components are omitted for convenience.

As described above, the deck plate 55 is placed on the support 53 of the concrete composite steel beam 100 at the time of formwork installation. The deck plate 55 is typically made of steel and may be coupled to the support 53 by welding. The deck plate 55 may be used as a permanent structure without dismantling.

In the present invention, the reinforcing bar reinforcement to the slab 60, preferably, reinforcing bar 61 is provided on both sides of the H-shaped steel 12, and connecting reinforcing bars are installed across the upper portion of the H-shaped steel 12 62 is provided. Preferably, the connecting reinforcing bar 62 is installed to be adjacent to the reinforcing bar 61, and serves to transfer the compressive stress applied to the reinforcing bar 61 on one side to the reinforcing bar 61 on the other side. It is already known that stresses can be transferred between reinforcing bars when reinforcing bars embedded in concrete are approached within a predetermined distance from each other.

48 to 53 illustrate a rebar configuration of a slab according to various embodiments of the present disclosure. Some of these figures show only the reinforcing bars and H-beams in the slab structure, and the rest of the drawings are omitted for convenience. In addition, the same reference numerals as in the above-described drawings indicate the same member.

First, referring to Figures 48 and 49 showing the reinforcement configuration of the slab according to another embodiment of the present invention, the reinforcing bars (61a) are respectively reinforcement on both sides of the H-shaped steel 12 of the concrete composite beams 100 do.

In addition, a through hole (not shown) is formed in the web 12b of the H-shaped steel 12 so that the connecting reinforcing bar 62a penetrates through the through hole. At this time, as described above, the connecting reinforcing bar 62a is disposed to be adjacent to the reinforcing bar 61a.

In the present embodiment, since the reinforcing bar 61a and the connecting bar 62a are located at a relatively lower level than the upper flange 12a of the H-beam 12, the center portion and / or the bottom of the slab may be reinforced.

50 and 51 show the reinforcement configuration of the reinforcing bar in the slab according to another embodiment of the present invention.

According to the present embodiment, a plurality of reinforcing bars 61b are disposed at both sides of the H-shaped steel 12 of the concrete composite beam 100 at predetermined intervals. In addition, at the end of the reinforcing bar 61b, a connecting bar 62b for transmitting the axial stress applied to the reinforcing bar 61b to the H-shaped steel 12 is disposed adjacent thereto.

The connecting reinforcing bars 62b have a U-shape, and end portions thereof are disposed to be close to ends of the reinforcing bars 61b adjacent to each other. At the same time, the center portion of the connecting reinforcing bar 62b is installed in close proximity to the H-beam 12 or welded thereto.

According to this configuration, the connecting reinforcing bar (62b) is to transfer the axial stress applied to the reinforcing bar (61b) on one side via the H-shaped steel (12) to the reinforcing bar (61b) on the other side.

Preferably, the connecting reinforcing bar 62b, as shown in Figure 51, the adjacent connecting bars are arranged so that the ends overlap each other can act as a more effective reinforcing structure.

52 and 53 show the reinforcement configuration of the reinforcing bar in the slab according to another embodiment of the present invention.

According to the present embodiment, a plurality of reinforcing bars 61c are disposed at both sides of the H-shaped steel 12 of the concrete composite beam 100 at predetermined intervals. Further, at the end of the reinforcing bar 61c, a connecting bar 62c for transmitting the axial stress applied to the reinforcing bar 61b to the H-shaped steel 12 is disposed adjacent thereto.

The connecting reinforcing bar 62c has an L shape, and one end thereof is positioned to be close to the end of the reinforcing bar 61c, and the other end thereof is installed to be adjacent to the H-shaped steel 12 or welded thereto.

According to this configuration, the connecting reinforcing bar 62c transfers the axial stress applied to the reinforcing bar 61c on one side to the reinforcing bar 61c on the other side via the H-shaped steel 12.

Although the present embodiment has been described with respect to the slab structure using the concrete composite beam 100 having a cross-section of the concrete member trapezoidal shape, the present invention is not limited thereto, and may be applied to a concrete composite beam having a cross section of various shapes.

In addition, the reinforcing bars and connecting bars described and illustrated in the above embodiments may be used in various combinations, and additional reinforcing bars may be further arranged at various locations as needed.

54 to 58 illustrate a method of constructing an underground structure according to another preferred embodiment of the present invention.

As described above, the basement slab-outer wall construction method of the present embodiment also has a wall construction step (S100A), a pile construction step (S200A), a first trench step (S300A), a shear connection member installation step (S400A), and a concrete composite section steel Beam and formwork installation step (S500A), concrete pouring and curing step (S600A), and then it is composed of the steps to repeat the subsequent processes repeatedly with the secondary trench.

54 and 55, in the pile construction step (S200B) after the earthen wall 210 is installed, a plurality of pillar piles 220, which are H-beams, are installed by installing a plurality of pillar piles 220 around the position of the pillar of the basement layer. . In addition, the installation file 230, which is H-shaped steel, is installed in a line to be the outer wall of the basement. The extraction pile 230 serves as a support to which one end of the concrete composite beam to be subsequently installed is coupled and supported, and at the same time, serves as a reinforcement of the basement outer wall.

When the installation of the pillar pile 220 and the extraction pile 230 is completed, as shown in FIG. 56, the primary trench is performed at a predetermined depth. As the excavation proceeds as described above, the upper portion of the retaining wall 210 and the pillar pile 220 and the extraction pile 230 is exposed.

Subsequently, when the first burst is finished, a plurality of shear connection members 240 are installed on the exposed side of the extraction pile 230. Preferably, the shear connection member 240 may be installed on the side surface of the exposed retaining wall 210 in order to further increase the binding force and the supporting force of the basement outer wall, and also shears to both sides of the inner side of the extraction pile 230. The connection member 240 may be installed.

Next, one end of the concrete composite beam beam 100 is welded to the extraction pile 230, the other end is installed by welding to the pillar pile 220.

According to the present invention, the concrete composite beam beam 100 can be easily and quickly installed by simply welding to the installation file 230 that is pre-installed without using a separate rim beam (belt) or beam connecting plate. have. The combination of the concrete composite beams 100 to the extraction pile 230 is not limited by the present embodiment, it should be understood that various modifications may be applied, such as welding using an auxiliary bracket.

When the installation of the concrete composite beam beam 100 is completed as described above, the formwork 260 for constructing the first basement slab BS1 and the first basement permanent outer wall BW1 is installed as shown in FIG. 57. do. The formwork installation method is the same as described above. Reinforcement of the slab is installed with the formwork.

As described above, after the installation of the formwork 260 and the reinforcing bar is finished, the concrete is cast and cured for the first basement slab BS1 and the first basement outer wall BW1 as shown in the figure.

As shown in FIG. 58, after the first basement is completed, the above-described process is repeated repeatedly to construct a structure of the second basement or an additional basement.

59 is a front view showing the configuration of a concrete composite beam according to another embodiment of the present invention. The concrete composite beam of the present embodiment is the same as the concrete composite steel beam shown in FIG. 17 except that the reinforcing plate 431a is installed at both sides near the end of the concrete member 431. .

The reinforcing bar fixing plate 431a is to support the concrete composite steel beam with a bracket or the like in the process of constructing the column as shown in FIG. 60 and then fix the column transverse rebar 431b by welding or the like. Then, to pour concrete up to the pillar placing line 460 it is buried. Preferably, the reinforcing plate 431a may be provided with at least one stud to increase the bonding force with the concrete member as described above.

According to another embodiment of the present invention, a through hole may be formed so that the column rebar passes through a concrete member without using the reinforcing bar fixing plate, which is illustrated in FIG. 61.

That is, referring to FIG. 61, a through hole 431c is formed in a lateral direction near the end of the concrete member 431 of the concrete composite steel beam so that the column transverse rebar 431d penetrates. In this case, it is possible to use a continuous column rebar.

As described above, the construction method of the underground structure to support the earth pressure together with the slab by connecting the concrete composite beam to the column and the wall without needing a fireproof coating can be used simultaneously with the bending and compression material according to the present invention as follows: Has an effect.

First, it provides a method of construction of underground structures that connect concrete composite beams to each other or to the pillars of the structure to effectively reduce the height without affecting the safety of the structure.

Second, it provides a method of construction of underground structures using concrete composite beams that can effectively resist compressive and bending stresses due to earth pressure.

Third, the present invention provides a method for constructing an underground structure using a concrete composite beam having no need of additional fireproof coating or corrosion resistant coating on H-beam.

Fourth, it provides a method of construction of underground structures using concrete composite beams that can smoothly transmit the compressive force at the connection.

Fifth, in order to construct the underground structure, it is necessary to install the joint plate of the girder beam and the concrete composite beam by installing the concrete composite beam and formwork and reverse casting the stratified slab and the underground outer wall. Does not provide a method of construction of underground structures.

Sixth, by laying the stratified slab and the basement outer wall together to provide a construction method of the underground structure that can strengthen the earth pressure supporting structure for the retaining wall and at the same time shorten the air.

Seventh, it provides a construction method of the underground structure using a slab structure that can resist the compressive force acting on both sides of the concrete composite beam, and can transmit the compressive force smoothly.

Claims (54)

Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. And a support for supporting a deck plate placed thereon, and supporting a concrete composite beam having a plurality of second shear connecting members coupled to one end of the H-beam, such that the second shear connecting member may be embedded in the basement outer wall. Securing the other end to the column pile while positioning the same; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to pour the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall; Construction method. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shape consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-beam, and at least one of the webs. A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. And a support reinforcing bar having a support for supporting the support, and a fixing part embedded inwardly from an upper surface of the concrete member, and an extension part extending laterally along the upper surface of the concrete member from the fixing part. Concrete cover with a plurality of second shear connectors attached to one end of the section steel Supporting the haptic steel beam, positioning the second shear connecting member to be embedded in the basement outer wall and fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall; Construction method. The method of claim 2, The fixing part of the reinforcing bar, the construction method of the underground structure, characterized in that extending parallel to the web of the H-beam is fixed to the web. The method of claim 2, The fixing part of the reinforcing bar is extended so as to be inclined at a predetermined interval with the web of the H-beam, the end of which is fixed to the lower flange of the H-beam construction method of the underground structure. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The cone to interconnect the auxiliary reinforcing bars and the first and second auxiliary reinforcing bars. And a binding reinforcing bar embedded in the crete member, and supporting a concrete composite steel beam having a plurality of second shear connecting members coupled to one end of the H-beam so that the second shear connecting member can be embedded in the basement outer wall. Securing the other end to the column pile while setting the position; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall; Construction method. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement Supporting the above-mentioned tensile / compressive reinforcement, and the deck plate is installed on the upper surface of the concrete member, the support for supporting, the concrete composite beams in which a plurality of second shear connection member is coupled to one end of the H-beam And positioning the second shear connecting member to be embedded in the basement outer wall. Securing the other end to the column pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall; Construction method. The method of claim 6, The tension / compression rebar includes at least one exposed reinforcing bar not embedded in the concrete member, The construction method of the underground structure further comprises a mounting member fixed to the upper edge of the hoop reinforcement so that the exposed reinforcing bar is coupled. The method of claim 7, wherein The mounting member, The end is fixed to the top of the corner of the hoop reinforcement, the construction method of the underground structure, characterized in that forming the 'L' shape so that the exposed reinforcement to the corner inner circumference. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars installed at predetermined intervals along a longitudinal direction to surround the lower flange of the H-beam, and the hoop rebars. At least one tension / compression reinforcing bar fixed in a longitudinal direction, a connecting plate connected to an end of the H-beam, a plurality of extension bars having one end fixed to a front surface of the connecting plate and extending in a longitudinal direction, and the plurality of An auxiliary hoop reinforcing bar and enclosing the extension bars at predetermined intervals, at least one compressive force transmission plate coupled to the other end of the extension bar, the web, hoop reinforcing, auxiliary hoop bar, at least a part of the connecting plate, and The tension / compression rebar, at least one of the extension bars and the lower flange to be embedded A concrete member formed integrally with the H-beam and a concrete composite beam comprising a support for supporting a deck plate placed on the upper surface of the concrete member to support the composite beam, so that the compressive force transmission plate can be embedded in the basement outer wall Securing the other end to the column pile while setting the position; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite steel beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. Coupling one end of the H-beam of the concrete composite steel beam to the H pile of the retaining wall while supporting the deck plate disposed thereon and fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shape consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-beam, and at least one of the webs. A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. And a joint reinforcing bar including a support for supporting a support member, and a fixing part embedded in an interior from an upper surface of the concrete member, and an extension part extending from the fixing part to extend laterally along the upper surface of the concrete member. One end of the H-beam of the beam is connected to the H pile of the retaining wall Combining and securing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. The method of claim 11, The fixing part of the reinforcing bar, the construction method of the underground structure, characterized in that extending parallel to the web of the H-beam is fixed to the web. The method of claim 11, The fixing part of the reinforcing bar is extended so as to be inclined at a predetermined interval with the web of the H-beam, the end of which is fixed to the lower flange of the H-beam construction method of the underground structure. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The auxiliary reinforcing bar and the first and second auxiliary reinforcing bars One end while the other end thereof for coupling to H file of the retaining wall of concrete composite beams H-beams of a beam comprising a reinforcement which is embedded coupling provided in the concrete member comprising the steps of fixing to the pillars file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement One end of the H-shaped steel of the concrete composite steel beam comprising the above tension / compression reinforcement and a support for supporting a deck plate placed on the upper surface of the concrete member, and the other end thereof Securing to the pillar file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. The method of claim 15, The tension / compression rebar includes at least one exposed reinforcing bar not embedded in the concrete member, The construction method of the underground structure further comprises a mounting member fixed to the upper edge of the hoop reinforcement so that the exposed reinforcing bar is coupled. The method of claim 16, The mounting member, The end is fixed to the top of the corner of the hoop reinforcement, the construction method of the underground structure, characterized in that forming the 'L' shape so that the exposed reinforcement to the corner inner circumference. Installing a retaining wall along a boundary of a building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars which are welded to the upper flange at predetermined intervals along the length direction while covering the lower flange of the H-shaped steel. And a concrete member integrally formed with the H-shaped steel to bury at least a portion of the web and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and installed on an upper surface of the concrete member. Installing and fixing a concrete composite steel beam comprising a support for supporting a deck plate placed thereon and having a plurality of second shear connection members coupled to one end of the H-beam between the traction file and the pillar file; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall along a boundary of a building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; An H-shape consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-beam, and at least one of the webs. A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck installed on and placed on an upper surface of the concrete member. A joint reinforcing bar having a support for supporting a plate, a fixing part embedded inwardly from an upper surface of the concrete member, and an extension part extending from the fixing portion to extend laterally along the upper surface of the concrete member; Concrete cover with a plurality of second shear connecting members coupled to one end of the section steel Information beams comprising the fixed and installed between the collection file, and the file pillar; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. The method of claim 19, The fixing part of the reinforcing bar, the construction method of the underground structure, characterized in that extending parallel to the web of the H-beam is fixed to the web. The method of claim 19, The fixing part of the reinforcing bar is extended so as to be inclined at a predetermined interval with the web of the H-beam, the end of which is fixed to the lower flange of the H-beam construction method of the underground structure. Installing a retaining wall along a boundary of a building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on and placed on an upper surface of the concrete member. A first auxiliary reinforcement embedded in the concrete member and installed in the longitudinal direction so as to be inscribed to the hoop reinforcement, and a second embedded in the concrete member and installed in the longitudinal direction so as to be inscribed in the web of the H-shaped steel. The auxiliary reinforcing bar and the first and second auxiliary reinforcing bars Includes a coupling provided in the reinforcement which is embedded in concrete members and the steps of the fixed installation between the collection file, and the file information pillar once the concrete composite beams in the plurality of second connecting members coupled to the front end of the H-beams; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall along a boundary of a building to be constructed; Putting a plurality of direction piles in a position corresponding to an underground outer wall to be formed in front of the retaining wall, and inserting a plurality of pillar piles in a position corresponding to a pillar of a building; Digging to a predetermined depth to expose the retaining wall and upper portions of the extraction pile and the pillar pile; Coupling a plurality of first shear connecting members to sides of the exposed traction file; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop reinforcements, a concrete member integrally formed with the H-beams to bury at least a portion of the web and a lower flange, and a portion other than the upper portion of the hoop reinforcement, and at least one fixed in the longitudinal direction to the hoop reinforcement The above-mentioned tension / compression reinforcement, and the concrete composite steel beam comprising a support for supporting the deck plate installed on the upper surface of the concrete member and a plurality of second shear connecting member is coupled to one end of the H-beams Installing and fixing between the pile and the pillar pile; Fixing the deck plate over the concrete member upper surface of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the basement outer wall including the slab of the first basement layer and the extraction pile; And Pouring concrete into the formwork and simultaneously placing and curing the slab and the basement outer wall of the first basement layer. The method of claim 23, wherein The tension / compression rebar includes at least one exposed reinforcing bar not embedded in the concrete member, The construction method of the underground structure further comprises a mounting member fixed to the upper edge of the hoop reinforcement so that the exposed reinforcing bar is coupled. The method of claim 23, wherein The mounting member, The end is fixed to the top of the corner of the hoop reinforcement, the construction method of the underground structure, characterized in that forming the 'L' shape so that the exposed reinforcement to the corner inner circumference. The method according to claim 1, 5, 14 or 22, Installing the formwork and the reinforcing bar so as to cast the slab and the basement outer wall of the first basement floor, Reinforcing reinforcing bars on both sides of the H-beam of the concrete composite beam; And And reinforcing the connecting bars such that at least one end thereof adjoins the reinforcing bars so that the axial stress of the reinforcing bars on one side of the H-beam can be transferred to the reinforcing bars on the opposite side thereof. Construction method. The method of claim 26, wherein the connecting reinforcing bar, Construction method of the underground structure characterized in that the reinforcement across the upper flange of the H-beam of the concrete composite beam. The method of claim 26, wherein the connecting reinforcing bar, Construction method of the underground structure characterized in that the reinforcement to penetrate through the through-hole formed in the web of the H-beam of the concrete composite beam. The method of claim 26, wherein the connecting reinforcing bar, A method of constructing an underground structure, characterized by forming a U-shape, the end of which is adjacent to the ends of the reinforcing bars adjacent to each other, and the center thereof is installed or fixed to be close to the H-beam. The method of claim 26, wherein the connecting reinforcing bar, L-shape, one end thereof is close to the end of the reinforcing bars, the other end is installed or fixed to be adjacent to the H-beam of the concrete composite beams. The method according to any one of claims 1 to 25, Fixing the concrete composite beam, Installing a coupling plate to extend laterally on the side of the pillar pile; And Coupling the other end of the coupling plate and the web of the H-shaped steel of the concrete composite beam; further comprising a method of constructing an underground structure. The method of claim 31, wherein The column pile is provided with a welding plate, At least one end of the tension / compression reinforcing bar is welded to the welding plate to support the construction of the underground structure. The method of claim 31, wherein The pillar pile is provided with a coupler having a recess, At least one end of the tension / compression reinforcing bar is welded while being inserted into the groove. The method of claim 31, wherein Tensile / compression rebar of the concrete composite beam, Exposed reinforcing bars not embedded in the concrete member; And Includes; the reinforcing bar embedded in the concrete member; And the exposed reinforcing bar is located at a position relatively higher than the surface of the upper flange of the H-beam, thereby not interfering with another neighboring concrete composite steel beam connected to the pillar pile. The method of claim 31, wherein An exposed end portion of the web of the concrete composite beam is formed with a cut opening, so that the reinforcing bar of another neighboring concrete composite beam connected to the pillar pile penetrates the opening. Construction method. The method according to any one of claims 1 to 25, The concrete member is a construction method of the underground structure, characterized in that the upper surface forms a cross section of a trapezoidal shape wider than the lower surface. The method according to any one of claims 1 to 25, The concrete composite shaped steel beam construction method further comprises a cover member installed in the longitudinal direction to surround the side and the lower surface of the concrete member The method of claim 37, The cover member is a construction method of the underground structure, characterized in that made of synthetic resin containing carbon fiber FRP or glass fiber FRP. The method according to any one of claims 10 to 17, The space between the neighboring retaining wall further comprises the step of reinforced by jet grouting (jet grouting) construction method of the underground structure. The method according to any one of claims 6, 15 and 23, The concrete composite beam, A first auxiliary reinforcing bar embedded in the concrete member to be inscribed in the hoop reinforcement and installed in the longitudinal direction, and a second auxiliary reinforcing bar embedded in the concrete member and installed in the longitudinal direction to be inscribed in the web of the H-beam; And And a binding reinforcing bar embedded in the concrete member so as to interconnect the first and second auxiliary reinforcing bars. The method according to any one of claims 1 to 25, The concrete composite shaped steel beam construction method further comprises a corner member installed in the longitudinal direction along the lower corner portion of the concrete member. The method of claim 41, wherein The corner member is a construction method of the underground structure, characterized in that made of any one of synthetic resin or steel material including carbon fiber FRP or glass fiber FRP. The method according to any one of claims 1 to 25, The construction method of the underground structure, characterized in that a plurality of through-holes are formed in the web of the H-shaped steel so that concrete can penetrate. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars installed at predetermined intervals along a longitudinal direction to surround the lower flange of the H-beam, and the hoop rebars. At least one tension / compression reinforcing bar fixed in a longitudinal direction, a connecting plate connected to an end of the H-beam, a plurality of extension bars having one end fixed to a front surface of the connecting plate and extending in a longitudinal direction, and the plurality of An auxiliary hoop reinforcing bar and enclosing the extension bars at predetermined intervals, at least one compressive force transmission plate coupled to the other end of the extension bar, the web, the hoop bar, the auxiliary hoop bar and at least a portion of the connecting plate, and the At least one of tension / compression rebar and extension reinforcement and the lower plen A concrete member integrally formed with the H-shaped steel so as to be embedded therein, a support for supporting a deck plate disposed on and positioned on the upper surface of the concrete member, a fixing part embedded in the interior from the upper surface of the concrete member, and the high Supporting the concrete composite beam comprising a reinforcing bar having an extension extending from the government to extend laterally along the upper surface of the concrete member, while positioning the compressive force transmission plate to be embedded in the basement outer wall Fixing the other end to the pillar file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite steel beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel consisting of an upper flange, a lower flange and a web connecting the upper flange and the lower flange to each other, and a plurality of hoop rebars installed at predetermined intervals along the longitudinal direction to surround the lower flange of the H-beam, and the hoop rebars. At least one tension / compression reinforcing bar fixed in a longitudinal direction, a connecting plate connected to an end of the H-beam, a plurality of extension bars having one end fixed to a front surface of the connecting plate and extending in a longitudinal direction, and the plurality of An auxiliary hoop reinforcing bar and enclosing the extension bars at predetermined intervals, at least one compressive force transmission plate coupled to the other end of the extension bar, the web, the hoop bar, the auxiliary hoop bar and at least a portion of the connecting plate, and the At least one of tension / compression rebar and extension reinforcement and the lower plen A concrete member integrally formed with the H-shaped steel so that the ground is embedded, a support for supporting a deck plate disposed on and positioned on the upper surface of the concrete member, and a length of the concrete member embedded in the concrete member to be inscribed to the hoop reinforcement. A first auxiliary reinforcing bar, and a second auxiliary reinforcing bar installed in the concrete member to be inscribed in the web of the H-shaped steel and installed in a longitudinal direction, and embedded in the concrete member to interconnect the first and second auxiliary reinforcing bars. Supporting a concrete composite beam including a binding reinforcing bar to be installed, and positioning the compressive force transmission plate to be embedded in the basement outer wall and fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite steel beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop bars, a connecting plate connected to an end of the H-shaped steel, a plurality of extension bars having one end fixed to a front surface of the connecting plate and extending in a longitudinal direction, and the plurality of extension bars A binding auxiliary hoop reinforcement, at least one compressive force transmission plate coupled to the other end of the extension reinforcement, the web, auxiliary hoop reinforcement, at least a portion of the connecting plate and at least one of the tension / compression reinforcement and the extension reinforcement; and The lower flange is embedded and the upper portion of the hoop rebar is Supports a concrete member integrally formed with the H-shaped steel to bury the merged portion, at least one tension / compression reinforcing bar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on the upper surface of the concrete member Supporting the concrete composite beam comprising a support, to position the compressive force transmission plate to be embedded in the underground outer wall and at the other end of the fixing to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite steel beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; H-shaped steel composed of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, and the lower flanges of the H-shaped steel are installed at predetermined intervals along the longitudinal direction such that both ends thereof contact with both sides of the web. A plurality of hoop bars, a connecting plate connected to an end of the H-shaped steel, a plurality of extension bars having one end fixed to a front surface of the connecting plate and extending in a longitudinal direction, and the plurality of extension bars A binding auxiliary hoop reinforcement, at least one compressive force transmission plate coupled to the other end of the extension reinforcement, the web, auxiliary hoop reinforcement, at least a portion of the connecting plate and at least one of the tension / compression reinforcement and the extension reinforcement; and The lower flange is embedded and the upper portion of the hoop rebar is Supports a concrete member integrally formed with the H-shaped steel to bury the merged portion, at least one tension / compression reinforcing bar fixed in the longitudinal direction to the hoop reinforcement, and a deck plate installed on the upper surface of the concrete member A first auxiliary reinforcing bar embedded in the concrete member to be inscribed to the hoop reinforcement and installed in the longitudinal direction, and a second auxiliary reinforcing bar embedded in the concrete member to be installed in the longitudinal direction to be inscribed to the web of the H-shaped steel And supporting a concrete composite beam including a binding reinforcing bar embedded in the concrete member so as to interconnect the first and second auxiliary reinforcing bars, and positioning the compressive force transmission plate to be embedded in the basement outer wall. At the same time fixing the other end to the pillar pile; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And And pouring concrete into the formwork so that the compressive force transmission plate of the concrete composite steel beam is embedded, and simultaneously pouring and curing the slab and the basement outer wall of the first basement layer. The method according to any one of claims 9 and 44 to 47, Construction method of the underground structure, characterized in that the reinforcing bar fixing plate that can be fixed to the column reinforcement on both sides near the end of the concrete member. The method according to any one of claims 9 and 44 to 47, The construction method of the underground structure, characterized in that the through hole is formed in the lateral direction near the end of the concrete member so that the transverse rebar passes. The method according to any one of claims 9 and 44 to 47, Construction method of the underground structure, characterized in that the reinforcing bar fixing plate which can be fixed to the column reinforcing bars on both sides near the end of the concrete member. The method according to any one of claims 9 and 44 to 47, The construction method of the underground structure, characterized in that the through hole is formed in the lateral direction near the end of the concrete member so that the transverse rebar passes. The method according to any one of claims 9 and 44 to 47, The concrete composite beam is a construction method of the underground structure, characterized in that mounted on the support bracket installed on the column. The method according to any one of claims 5, 14 and 22, The concrete composite beam, The construction of the underground structure further comprises a joint reinforcing bar having a fixed portion embedded in the interior from the upper surface of the concrete member and extending from the fixing portion to extend laterally along the upper surface of the concrete member Way. Installing a retaining wall including an H pile along a boundary of the building to be constructed, and putting a pillar pile at a position to be a pillar of the building; Digging to a predetermined depth to expose a portion of the retaining wall and the pillar pile; Coupling a plurality of first shear connecting members to the exposed soil wall; An H-shaped steel consisting of an upper flange, a lower flange, and a web connecting the upper and lower flanges to each other, a plurality of hoop bars installed at predetermined intervals along a length direction to surround the lower flange of the H-shaped steel, and at least the web A concrete member integrally formed with the H-beam to fill a portion and a lower flange, at least one tension / compression rebar fixed in the longitudinal direction to the hoop reinforcement, and a deck installed on and placed on an upper surface of the concrete member. A support for supporting a plate, a first auxiliary reinforcing bar embedded in the concrete member to be inscribed in the hoop reinforcement and installed in the longitudinal direction, and a second embedded reinforcement in the concrete member to be inscribed in the web of the H-shaped steel in the longitudinal direction The auxiliary reinforcing bar and the first and second auxiliary reinforcing bars; Bonded reinforcing bars having a fastening reinforcement embedded in the crete member, a fixed portion embedded in the interior from the upper surface of the concrete member, and an extension portion extending from the fixing portion to extend laterally along the upper surface of the concrete member. And supporting a concrete composite beam having a plurality of second shear connecting members coupled to one end of the H-beam, thereby positioning the second shear connecting member to be embedded in an underground outer wall and at the other end of the pillar. Pinning to a file; Fixing the deck plate over the support on the upper surface of the concrete member of the adjacent concrete composite beam; Installing formwork and reinforcing bars to cast the slab and the basement outer wall of the first basement layer; And Pouring concrete into the formwork so that the second shear connection member formed at one end of the concrete composite beam is poured into the mold and simultaneously curing and curing the slab of the first basement layer and the basement outer wall; Construction method.

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