KR20120105748A - Steel-concrete composite structure using lattice member and method for manufacturing the same - Google Patents

Abstract

PURPOSE: A steel-concrete composite structure and a manufacturing method thereof using a lattice member are provided to obtain improved torsional resistance, strength, and rigidity by forming a closed steel structure with the lattice member attached to an opening. CONSTITUTION: A steel-concrete composite structure comprises a steel structure which is open at one or more sides constituting a column or beam and a lattice member(20) attached to the opening of the steel structure and having a patterned passage(22) in order to improve the integrity with concrete applied to the inner and outer sides thereof. The lattice member comprises one or more unit modules(30), each comprising two or more longitudinal members(40) and a horizontal member(50) connecting the longitudinal members, forming the patterned passage.

Description

Steel-concrete composite structure using lattice member and manufacturing method thereof {STEEL-CONCRETE COMPOSITE STRUCTURE USING LATTICE MEMBER AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a steel-concrete composite structure using a lattice member and a method of manufacturing the same, and more particularly, by pre-assembling a lattice member to an opening of a steel structure constituting the composite structure, the integrity of the concrete and the steel structure, The present invention relates to a steel-concrete composite structure using a lattice member for improving the strength, rigidity and workability of the composite structure, and a method of manufacturing the same.

1 is a cross-sectional view of a conventional general embedded recessed composite pillar 1, the conventional composite pillar 1 is composed of the H-shaped steel 100 and concrete 200 provided to surround it.

By the way, the conventional composite column (1) by using the H-shaped steel (100) greatly reduces the bending performance for the weak axis, due to the coating thickness, transverse reinforcement, the main bar, the distance between the steel and reinforcing bars, most of the steel cross section In case of receiving both bending and axial force at the center of the column, there was a problem that the bending moment performance was inferior to the cross-sectional area.

In addition, in order to secure the performance of the concrete 200, as shown in Figure 1 because the reinforcement work, such as reinforcing cast reinforcing bar 110 and the transverse reinforcing bar 120 formed to surround it is required separately, poor construction properties in the field There was a problem.

In particular, in the case of using a high-strength steel, due to the difference between the yield strength of the steel and the ultimate compressive strain of the concrete, there was a problem that the concrete 200 is first crushed before the steel yields, so that the strength of the steel cannot be fully utilized. .

On the other hand, high bending stiffness is required to control the deflection of the slab seen in the building, and also the construction and field applicability are important because the amount of the beam in the building occupies a considerable amount.

Thus, conventional conventional composite beams are formed to have a deeper cross-sectional depth in order to secure flexural stiffness, and fireproof coating is required for exposed steel to prepare for fire. In addition, shear connectors such as studs are required to increase the integrity of slab concrete and steel.

In addition, Fig. 2 shows a conventional general embedded composite beam 2, the conventional embedded composite beam 2 is flexural stiffness and fire resistance compared to the above-described exposed composite beam due to the concrete 202 surrounding the steel This is improved.

However, not only a separate formwork is required for placing the concrete 202, but also the reinforcing bars 112 and 122 work are required to secure the performance of the concrete, and the composite beam 2 to secure the integrity with the slab concrete. Since a plurality of shear connecting members 130 are welded and installed on the upper flange, there is a problem of poor workability.

The present invention has been proposed to solve the above conventional problems, the composite column is a steel structure of the a-shaped steel or steel plate, while the composite beam is composed of a steel structure of the channel-shaped steel sheet, between the a-shaped steel, between the steel sheet and the steel sheet or channel Steel-concrete composite structure and its fabrication using lattice members to improve the integrity, strength, rigidity and workability of concrete, composite structures, and joints by joining a lattice member made of reinforcing steel and steel wire between upper flanges of a steel plate The purpose is to provide a method.

As a technical aspect for achieving the above object, the present invention, the one or more sides constituting the column or beam is joined to the opening of the steel structure and the steel structure is formed, the integrity of the cast concrete inside and outside To improve the present invention, there is provided a steel-concrete composite structure using a lattice member including a lattice member in which a through part of a predetermined pattern is formed.

Preferably, the steel structure, the a-shaped steel is disposed on each corner of the column, the steel sheet disposed on the outer periphery of the column, or the channel-shaped steel sheet formed by opening the upper flange of the beam.

More preferably, the channel-shaped steel sheet includes at least one reinforcing steel reinforcing bar joined in the longitudinal direction of the steel sheet to improve the strength of the composite structure and the integrity of the concrete.

More preferably, the lattice member is composed of at least one unit module, wherein the unit module includes at least two or more length members and horizontal members connecting the length members to form the through parts.

More preferably, at least one of the length member or the horizontal member includes a protrusion formed to protrude on the outer surface to improve adhesion to concrete.

More preferably, the horizontal member, characterized in that attached to be in a diagonal direction with respect to the length member.

More preferably, the length member is characterized in that the reinforcing bar is formed by protruding nodes on the outer surface.

More preferably, the horizontal member is characterized in that the steel wire to form the through portion while being joined in a zigzag form alternately between the pair of length members.

In addition, the present invention, the step of preparing the lattice member described above and the opening of the steel structure constituting the column or beam, pre-assembled the lattice member of the steel-concrete composite structure using a lattice member configured Provide the production method.

Preferably, the steel structure comprises a channel-shaped steel sheet formed by opening the upper flange of the beam, the step of joining the steel structure and lattice member, in the factory, the strength, rigidity and integrity of the composite structure with concrete To improve the, comprising the step of bonding at least one reinforcing reinforcing bar in the longitudinal direction of the steel sheet to the inner bottom surface of the channel-shaped steel sheet.

More preferably, after the steel structure and the lattice member of the pre-assembled state is installed by moving to the site, the method further includes the step of placing concrete by installing a formwork sheet outside.

According to the steel-concrete composite structure using the lattice member and the manufacturing method thereof according to the present invention, the lattice member is bonded to the open portion of the steel structure, thereby forming a closed steel structure of a certain level to increase the resistance to torsion Therefore, there is an effect of improving the strength and rigidity.

In addition, the lattice member is provided with a penetrating portion of a predetermined pattern has the effect of improving the bonding force between the inner and outer concrete.

In addition, by using a general reinforcing bar formed on the outer surface as a length member of the lattice member, the adhesive force between the steel structure to which the lattice member is bonded and the concrete hardened and poured around the lattice member is improved without providing a separate shear connector. There is.

In addition, the steel wire, which is a horizontal member of the lattice member, is joined in a zigzag form between the pair of length members, that is, in a diagonal direction, thereby providing excellent resistance to cyclic loads such as torsion, shear loads and earthquake loads. .

In addition, by preparing the steel structure and lattice member as described above in advance in the factory, it is possible to omit the rebar work in the field, it is possible to reduce the manufacturing cost, shorten the air, improve the workability .

1 is a cross-sectional view of the recessed composite pillar according to the prior art
Figure 2 is a cross-sectional view of the embedded composite beam according to the prior art
3a and 3b are perspective views of a steel-concrete composite pillar according to the present invention
4 is a perspective view of a steel-concrete composite beam according to the present invention
5a to 5c are front views of embodiments of the lattice member according to the present invention;
6a and 6b are perspective views showing the state of use of the steel-concrete composite pillar according to the present invention
7 is a perspective view showing a state of use of the steel-concrete composite beam according to the present invention
8 is a perspective view showing the state of use of steel-concrete composite pillar and composite beam according to the present invention
9 is a block diagram showing a method for manufacturing a steel-concrete composite according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a steel-concrete composite structure and its manufacturing method using a lattice member according to the present invention.

3a and 3b show a steel-concrete composite column 1 according to the present invention, and FIG. 4 shows a steel-concrete composite beam 2 according to the present invention. At this time, the illustration of the concrete is omitted so that the features of the present invention more clearly revealed.

First, the steel-concrete composite structure according to the present invention is bonded to the steel structure 10 and the open portion 12 of the steel structure 10 is formed at least one side constituting the column or beam is opened, placed inside and outside It may be configured to include a lattice member 20 to form a through portion 22 of a predetermined pattern to improve the unity with the concrete.

Here, the steel-concrete composite structure may be, for example, in the form of the steel-concrete composite column 1 shown in FIGS. 3A and 3B or the steel-concrete composite beam shown in FIG. 4. Of course, the composite structure is not limited to the illustrated form, in addition to the steel structure and the open at least one side is applicable to the structure is synthesized concrete.

Specifically, the steel structure 10 of the steel-concrete composite column 1 shown in FIG. 3A may include an a-shaped steel 10a disposed at each corner portion. Of course, the shape of the steel cross section is not limited to the "A" shape.

However, in general, the pillar is a square cross-section pillar in terms of usability, and most of them undergo biaxial bending and axial force at the same time, and thus, a-type steel (10a) that can maximize bidirectional bending performance compared to the same cross-sectional area than conventional H-shaped steel. Is more preferable.

In particular, in order to maximize the performance of the steel cross section when applying high strength steel, the a-shape steel (10a) is arranged to the outside of the cross section as much as possible, that is, the steel cross section to the outside of the cross section as much as possible to maximize the deformation of the steel by bending It is preferable to use.

Then, the lattice member 20 having the penetrating portion 22 of a predetermined pattern is joined to the opening 12 between the adjacent A-shaped steels 10a. Specifically, one side of the lattice member 20 is welded and coupled to one side of the a-shaped steel (10a), the other side is welded and coupled to one side of the other a-shaped steel (10a) adjacent to the a-shaped steel (10a). have. Here, the form in which the lattice member 20 is bonded between the a-shaped steels 10a is not limited, and thus, in addition to the illustrated form, the lattice member 20 may be welded and joined to the inner side or the outer side of the a-shaped steel 10a. have.

As such, the a-shaped steel 10a is disposed at each corner portion, and the lattice member 20 is joined to the openings 12 between adjacent a-shaped steels 10a, respectively, to form a closed steel structure of a predetermined level. Can be. In this case, since the steel structure behaves integrally through the lattice member 20, the synthesizing effect is maximized, thereby improving the strength and rigidity of the synthetic pillar 1.

Then, by installing the formwork plate on the outside, the concrete is poured and hardened to complete the steel-concrete composite pillar (1).

At this time, the penetrating portion 22 of a predetermined pattern is formed in the lattice member 20, so that the concrete is poured uniformly inside and outside of the closed steel structure as described above, and when hardened, the bonding force between the inner and outer concrete is excellent. There is.

In addition, the closed steel structure pre-assembled as described above has the effect of increasing the strength and ductility of the concrete by providing a binding force to the concrete inside. Accordingly, no separate reinforcing work is required to secure the performance of concrete.

Meanwhile, the steel structure 10 of the steel-concrete composite pillar 1 shown in FIG. 3B may include a steel plate 10b disposed at the outer side of the pillar.

The a-shape steel 10a of FIG. 3a is preferable when the column receives axial force and biaxial bending at the same time, but when the column receives axial force and uniaxial bending, it may be composed of a steel plate 10b as shown in FIG. 3b.

Specifically, the steel plates 10b are disposed on both sides of the pillar, and the lattice members 20 are joined to the open portions 12 between the steel plates 10b near the both ends of the steel sheets, respectively, to form a closed steel structure of a predetermined level. This can be formed.

Then, the formwork plate is installed on both sides of the steel plate 10b in the width direction to pour concrete and harden, thereby completing the steel-concrete composite pillar 1.

Here, the steel structure is not required to cut the steel plate (10b) and to join the lattice member 20, the operation is not required, the production cost is reduced, the air is shortened, the workability is improved. .

Other details are the same as those described in the steel-concrete composite pillar of FIG. 3A.

Next, the steel structure 10 of the steel-concrete composite beam 2 shown in FIG. 4 may include a channel-shaped steel plate 10c formed by opening the upper flange 14.

That is, the channel steel sheet 10c is formed of a substantially U-shaped steel sheet. In addition, the upper flange 14 of the channel-shaped steel sheet 10c may have a form extending in the inner direction of the steel sheet as shown in FIG. 4, but may also be formed in the form extending in the outer direction or both sides. In addition, the channel steel sheet 10c may be formed of a refractory material.

Then, the lattice member 20 having the penetrating portion 22 having a predetermined pattern is joined to the opening 12 between the upper flanges 14. In detail, one side of the lattice member 20 may be welded to the upper surface of one side flange 14, and the other side may be welded to the upper surface of the other upper flange 14. Here, the form in which the lattice member 20 is joined between the upper flanges 14 is not limited, and thus, the lattice member 20 may be welded and joined to the opposite side end portions of the upper flanges 14.

As such, the lattice member 20 may be bonded between the open upper flanges 14 of the channel-shaped steel sheet 10c to form a closed steel structure having a predetermined level. In this case, since the steel structure behaves integrally through the lattice member 20, the synthetic effect is maximized, thereby improving the resistance to the torsion of the composite beam 2, and the lattice member 20 can be used as a scaffold in operation. There is an effect of improving the field workability.

Then, after installing the formwork plate on the outside, the concrete is poured into the formwork plate and the channel-shaped steel sheet and hardened to form the slab concrete and the steel-concrete composite beam 2 integrally. At this time, the channel-shaped steel sheet 10c serves as a permanent formwork. In addition, the penetrating portion 22 of a predetermined pattern is formed in the lattice member 20, so that the concrete is easily poured into the closed steel structure as described above, and when hardened, the bonding force between the inner and outer concrete is excellent. .

In addition, the channel-shaped steel sheet (10c) comprises at least one reinforcing reinforcing bar 16 is joined to the inner lower surface in the longitudinal direction to improve the strength of the composite structure and the integrity of the concrete. Can be.

Generally, rebar is easier to manufacture than steel sheet and has excellent tensile strength. Therefore, by placing the reinforcing bars 16 concentrated in the lower section of the cross section of the channel-shaped steel sheet 10c, there is an effect of providing excellent bending performance compared to the cross-sectional area compared to the conventional composite beam. Accordingly, the channel-shaped steel sheet 10c may use a thin plate, which is economical and easy to manufacture and transport.

In addition, since the reinforcing bars 16 are provided to increase the strength of the composite beam, the reinforcing bars 16 are relatively high in strength and have a diameter larger than those of the bars provided as the length members 40 of the lattice member 20 to be described later. It is desirable to.

In addition, by welding the high-strength deformed steel in the reinforcing bar on the inner bottom surface of the channel-shaped steel sheet 10c, since the section 42 of the deformed steel reinforces the adhesion performance and integrity of the concrete and the steel sheet, a separate shear connector is not required. .

Hereinafter, the reinforcing bar provided in the present invention means a bar shaped deformed bar.

Next, FIGS. 5A to 5C show embodiments of the lattice member 20 according to the present invention, and the lattice member 20 will be described in more detail with reference to them.

First, the lattice member 20 is composed of at least one unit module 30, the unit module 30, at least two or more length members 40 and the through-connecting between the length members It may include a horizontal member 50 to form a portion (22).

As such, by forming the lattice member 20 as a combination of the unit modules 30, it is advantageous not only for the production of the factory but also the manufacturing cost is reduced.

In addition, at least one of the length member 40 or the horizontal member 50 may include a protrusion 42 formed to protrude on the outer surface to improve adhesion to concrete. Here, the inner and outer concrete connected to the protrusion 42 and the penetrating portion 22 of the predetermined pattern serves as a shear connector, so it is not necessary to separately install a shear connector such as a stud.

Specifically, a first embodiment of the unit module 30 of the lattice member 20 according to the present invention shown in Figure 5a.

The length member 40 of the unit module 30 may be composed of a reinforcing bar 40 formed by protruding the node 42 on the outer surface. Since the reinforcing bar 40 is a deformed reinforcing bar in which the node 42 is generally used, it is easy to manufacture and economical since it is not necessary to provide a separate manufacturing facility. In addition, since the inner and outer concrete connected to the bar 42 of the reinforcing bar 40 and the through part 22 of the predetermined pattern serves as a shear connector, it is not necessary to separately install the shear connector.

In addition, the horizontal member 50 of the unit module 30 may be composed of a steel wire to form the through portion 22 while being alternately bonded in a zigzag form between the pair of length members 40. . Of course, the horizontal member 50 is not limited to the steel wire, instead of the steel wire can be used, such as circular reinforcement or deformed rebar.

Specifically, as shown in FIG. 5A, the bent portion of the steel wire 50 is welded to one of the rebars 40a, and the next bent portion of the steel wire 50 is welded to the other rebar 40b. do. In addition, by repeatedly performing such welding, the unit module 30 of the illustrated type may be manufactured.

That is, the steel wire 50 is welded so as to continue in the diagonal direction with respect to the reinforcing bar 40, and thus, the unit module 30 may be formed in a lattice structure having a triangular through portion 22 formed therein. have. Here, since the steel wire 50 is capable of automatic welding, the production of the unit module 30 is easy.

Such a unit module 30 is firmly coupled to the concrete inside and outside through the through portion 22, there is an effect of improving the integrity between the concrete and the steel structure.

In addition, when the steel wire 50 is formed in a diagonal direction through a lattice structure or the like, the steel wire 50 is excellent in shear resistance as well as resistance to cyclic load and torsion such as earthquake load. This is because the steel wire 50 is welded in a diagonal direction and resists at a right angle to cracks generated due to torsion, shear force, and repeated load. Moreover, the crack which generate | occur | produced also has an effect which prevents the expansion.

In addition, the horizontal member 50 shown in the figure is formed in a planar structure, but may be formed in a three-dimensional structure as necessary.

Next, FIG. 5B shows a second embodiment applying the first embodiment of FIG. 5A, wherein the unit module 30 according to the second embodiment has three reinforcing bars 40 provided as the length member 40. In the method described above, the steel wires 50 may be zigzag welded between the rebars 40.

Here, the reinforcing bar, which is the length member 40, may be further provided according to the interval of the opening 12 of the steel structure 10. That is, when the interval of the opening 12 of the steel structure 10 is wide, it may be preferable to use the unit module 30 according to the second embodiment than the unit module 30 according to the first embodiment. .

In addition, each of the steel wire 50 is preferably provided in the form of a diagonal line with the adjacent steel wire.

Otherwise, if the displacement is provided, when the unit module 30 receives the load in the horizontal direction in the drawing, the loads act in opposite directions at the joints between the rebars between the steel wires and the steel wires on both sides thereof, and thus the rebar may be easily bent. .

On the other hand, when the joints of the reinforcing bars and both steel wires are located on the same line so that the diagonal direction between adjacent steel wires continues, the load is transferred along the steel wire in the diagonal direction, so that the load resistance is excellent.

Next, FIG. 5C also shows a third embodiment applying the first embodiment of FIG. 5A, wherein the lattice member 20 according to the third embodiment continuously welds the unit module 30 according to the first embodiment. Can be configured.

That is, the unit module 30 of the lattice member 20 is manufactured according to a predetermined standard, and the lattice member is continuously welded to two or more unit modules 30 at intervals between the openings 12 of the steel structure 10. 20 can be formed. In this case, since the unit module 30 is manufactured to a certain standard, it is possible to mass-produce through a factory production, and thus the product quality is high, and production cost is reduced and economical.

In addition, as described in the second embodiment, the steel wire 50 of each unit module 30 is preferably provided in the form of a diagonal line and the steel wire 50 of the adjacent unit module 30.

As described above, in the lattice member 20 including one unit module or two or more unit modules, reinforcing bars 40 on both sides are welded to the opening 12 of the steel structure 10 to form one steel structure.

6A and 6B show the state of use of the steel-concrete composite pillar 1 according to the present invention, and show a configuration in which a beam is installed in the steel-concrete composite pillar 1 according to the present invention.

First, the steel-concrete composite column 1 according to the present invention is a-shaped steel (10a) as shown in Figure 6a is disposed at the outermost as possible because the distance between the a-shaped steel (10a) is wide, a-shaped steel (10a) It is easy to configure so that the H-type steel 70 itself passes through).

At this time, the horizontal member (steel wire) 50 or the lattice member (rebar and steel wire) 20 will be removed from the portion to be penetrated.

In addition, when installing the reinforcing reinforcement in general reinforced concrete composite beam, it is blocked by the column to fix the reinforcement to the column surface, or install a hole in the steel of the column to penetrate the rebar.

On the contrary, in the steel-concrete composite column 1 according to the present invention, as shown in FIG. 6B, a through pattern 22 having a predetermined pattern is formed in the lattice member 20 on each surface thereof, thereby deforming the configuration. It is easy to configure the rebar 72 to pass through without adding or adding other configurations.

As described above, in the case of the steel-concrete composite column 1 according to the present invention, it is easy to install the H type steel 70 and the reinforcing bar 72 of the beam, and the H type steel 70 or the reinforcing bar 72. ) Can be configured without a break, the rigidity and resistance to load is improved and the workability is increased.

Then, after the formwork is installed on the outside of the closed steel structure of a certain level consisting of the a-shaped steel (10a) and the lattice member 20, the concrete 60 is poured into the formwork to cure.

Next, Figure 7 shows the state of use of the steel-concrete composite beam 2 according to the present invention.

Specifically, by welding both length members of the lattice member 20 to the upper surfaces of both upper flanges 14 of the channel-shaped steel sheet 10c, the lattice members 20 to the opening 12 of the channel-shaped steel sheet 10c, respectively. Install). In addition, the inner bottom surface of the channel-shaped steel sheet 10c may be configured by welding two reinforcing bars 16 in the longitudinal direction.

After the slab formwork is installed, concrete 62 is poured into the formwork and the channel-shaped steel sheet 10c to cure. The lattice members 20 welded to the upper flanges 14 on both sides of the channel-shaped steel sheet 10c can further widen the opening 12 of the channel-shaped steel sheet 10c, thereby increasing the continuous concrete area of the slab concrete and the beam. Integrity is increased.

Next, FIG. 8 shows the state of use of the steel-concrete composite pillar 1 and the composite beam 2 according to the present invention, and the steel-concrete composite pillar 1 and the composite beam 2 according to the present invention are simultaneously applied. It has all the advantages described above.

Here, specific details of the respective structures of the steel-concrete composite pillar 1 and the composite beam 2 are the same as described above, and thus will be omitted.

Next, the block diagram of Figure 9 shows a method for producing a steel-concrete composite according to the present invention. That is, the steel-concrete composite structure such as the steel-concrete composite pillar 1 and the composite beam 2 is manufactured by the following method.

First, the manufacturing method of the steel-concrete composite structure according to the present invention (S100), the step of preparing the lattice member 20 described above (S110) and the opening 12 of the steel structure 10 constituting the column or beam 12 ), It may be configured to include a step (S120) of pre-assembling the lattice member 20.

Here, the steel structure 10 may include a channel-shaped steel sheet 10c formed by opening the upper flange 14 of the beam.

In this case, the step of joining the steel structure 10 and the lattice member 20, in the factory, to improve the rigidity of the composite structure and the integrity of the concrete, the steel sheet on the inner lower surface of the channel-shaped steel sheet (10c) Joining at least one reinforcing bar 16 in the longitudinal direction of the (S122) may include. Here, it is preferable that the reinforcing bar 16 uses a high strength deformed bar as described above.

Thereafter, the steel structure 10 and the lattice member 20 in the pre-assembled state may be moved to and installed on the site, and the concrete may be further included by installing a formwork sheet on the outside (S130). .

Among the above steps, the step of preparing the lattice member 20 (S110) and the step of bonding the lattice member 20 to the opening 12 of the steel structure 10 (S120) is preferably made in advance in the factory Do. That is, the steel structure 10 provided with the lattice member 20 is assembled in advance in the factory as a unit structure.

Accordingly, the amount of work in the field is reduced, the workability is increased, the air is shortened, and because of the factory welding, there is an effect of increasing the reliability of the cross-sectional performance.

While the invention has been shown and described in connection with specific embodiments so far, it will be appreciated that the invention can be variously modified and varied without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

1 ... steel-concrete composite beam 2 ... steel-concrete composite beam
10 ... steel structure 10a ... a type steel
10b ... steel plate 10c ... channel steel plate
12 ... opening 14 ... upper flange
16 ... reinforcing bar 20 ... lattice member
22 ... through 30 ... unit
40 ... length member (rebar) 42 ... protrusion (node)
50 ... horizontal member (steel wire)

Claims (11)

Steel structure 10 is formed by opening one or more sides constituting the column or beam; And
A lattice member 20 joined to the opening 12 of the steel structure 10 to improve the unity with the concrete to be poured into and out of the steel structure 10, wherein the through part 22 having a predetermined pattern is formed;
Steel-concrete composite structure using a lattice member configured to include.
The method of claim 1,
The steel structure 10 is a channel-shaped steel plate (10c) formed by opening the a-shaped steel (10a) disposed at each corner of the column, the steel plate (10b) disposed on the outer side of the column, or the upper flange 14 of the beam open Steel-concrete composite structure using a lattice member, characterized in that it comprises a).
The method of claim 2,
The channel-shaped steel sheet 10c includes at least one reinforcing reinforcing bar 16 joined in the longitudinal direction of the channel-shaped steel sheet to improve the strength of the composite structure and the integrity of the concrete. Steel-concrete composite structure using a lattice member characterized in that.
The method of claim 1,
The lattice member 20 is composed of at least one unit module 30,
The unit module 30 has a lattice member, characterized in that it comprises at least two or more length member 40, and a horizontal member 50 for connecting the length member to form the through portion 22 Steel-concrete composite structure used.
5. The method of claim 4,
At least one of the length member 40 or the horizontal member 50, the steel-concrete composite structure using a lattice member, characterized in that it comprises a protrusion formed to protrude on the outer surface to improve the adhesion to the concrete.
5. The method of claim 4,
The horizontal member 50 is a steel-concrete composite structure using a lattice member, characterized in that attached to be in a diagonal direction with respect to the length member (40).
5. The method of claim 4,
The length member 40 is a steel-concrete composite structure using a lattice member, characterized in that the reinforcing bar is formed by protruding a node on the outer surface.
5. The method of claim 4,
The horizontal member 50 is a steel wire using a lattice member, characterized in that the steel wire to form the through portion 22 while being alternately bonded between the pair of length members 40 in a zigzag shape. structure.
Preparing a lattice member (20) according to any one of claims 4 to 8 (S110); And
Pre-assembling the lattice member 20 to the opening 12 of the steel structure 10 constituting the column or beam (S120);
Method for producing a steel-concrete composite structure using a lattice member configured to include.
10. The method of claim 9,
The steel structure 10 includes a channel-shaped steel sheet 10c formed by opening the upper flange 14 of the beam,
Joining the steel structure 10 and the lattice member 20, in the factory, to improve the strength, stiffness and integrity of the composite structure of the composite structure, the inner surface of the channel-shaped steel sheet (10c) of the steel sheet Method of manufacturing a steel-concrete composite structure using a lattice member comprising the step (S122) of joining at least one reinforcing reinforcement (16) in the longitudinal direction.
10. The method of claim 9,
After the steel structure 10 and the lattice member 20 of the pre-assembled state is moved to the site and installed, a step of placing concrete for installing a formwork on the outside (S130), characterized in that it further comprises: Fabrication method of steel-concrete composite structure using lattice member.

Images