KR102131498B1 - Composite beam and floor structure and joint structure between composite beam and column - Google Patents

Abstract

The present invention is formed to extend in the longitudinal direction, the main body member having an open cross section; A plate-shaped closed cross-section plate which is joined to an upper side of the main body member to form a closed cross-section together with the main body member, and a concrete hole through which concrete is introduced through an upper region of the closed cross-section; A section steel member which is joined to the upper side of the closed cross-section plate material and is embedded in the pouring concrete; And a tension member disposed in an inner region of the closed end face and longitudinally disposed in a height lower region of the main body member to generate prestress.

Description

Composite beam, floor structure, and joint structure of composite beam and column member{COMPOSITE BEAM AND FLOOR STRUCTURE AND JOINT STRUCTURE BETWEEN COMPOSITE BEAM AND COLUMN}

The present invention relates to a composite beam having a reduced floor height, and a floor structure, and a bonding structure between the composite beam and the pillar member.

It should be noted that the contents described in this section merely provide background information about the present invention and do not constitute the prior art.

In general, the composite beam is a slab formed on the top of the H-beam, so the composite beam has a large dance and has an inefficient use of steel or space.

Accordingly, in the case of forming a slab in the middle of the H-beam to lower the floor height, the H-beam is twisted at the time of construction as an open surface, and there is a problem in that the twist is weak and there is a hassle of reinforcing the H-beam.

KR 10-0416877 B1

The present invention, as one aspect, is to provide a possible reduction in construction costs can reduce the construction cost.

The present invention, as one aspect, is to provide a load that can be supported during construction by the introduced prestress.

As one aspect for achieving the above object, the present invention is formed extending in the longitudinal direction, the main body member having an open cross section; A plate-shaped closed cross-section plate which is joined to an upper side of the main body member to form a closed cross-section together with the main body member, and a concrete hole through which concrete is introduced through an upper region of the closed cross-section; A section steel member which is joined to the upper side of the closed cross-section plate material and is embedded in the pouring concrete; A tension member disposed in an inner region of the closed end face and disposed in a longitudinal direction in a height lower region of the body member to generate a prestress; And, it is installed in connection with the section steel member, the bonding reinforcement to be fixed by joining the deck plate; includes, the body member, the bottom plate and the inclined plate is formed to be inclined upward at both ends of the bottom plate, The closed cross-section plate material, in a region where the concrete hole is not formed, forms a closed cross-section of at least an inverted trapezoidal shape on a cross-section while being welded and welded to the inclined plate in a state mounted on the top of the inclined plate, and the joint reinforcement, A mounting hardware mounted on the upper surface of the section steel member and having a'c'-shaped cross section with an open lower portion; And, it is formed in a bent shape at both ends of the mounting hardware, a pair of deck bonding hardware that is bonded to the upper side of the inner inlet surface of the deck plate mounted on the closed cross-section plate; provides a composite beam comprising a.

Preferably, the closed cross-section plate material, together with the main body member to form a closed cross section of at least a hollow inverted trapezoidal shape, and a concrete hole in which concrete can be introduced into the closed cross-section can be formed to be spaced apart in the longitudinal direction. .

Preferably, the concrete hole is a composite beam in which a plurality of rows are installed in the longitudinal direction of the closed cross-section plate, and the concrete holes forming adjacent rows are staggered.

Preferably, the concrete hole, the first concrete hole of the long hole is disposed in the width direction left from the center of the web member of the section steel member; And, the center of the web member is a second concrete hole of a long hole type disposed on the right side in the width direction; provided, wherein the first concrete hole and the second concrete hole are located at different positions in the longitudinal direction of the closed cross-section plate material Can be deployed.

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Preferably, the section steel member has an upper flange and a web member extending downward from a lower surface of the upper flange, and the'I' having a relatively lower width while the web member is joined to the upper surface of the closed end face plate material. It can form a cross-section of a figure.

Preferably, the tension member includes a fixing plate installed at both end regions of the body member; And, it is disposed in the longitudinal direction inside the body member, the tension introduction material for generating a bending stress upward in a state fixed to the fixing plate may be provided.

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As one aspect for achieving the above object, the present invention is a synthetic beam; A deck plate installed on the composite beam; And a pour concrete that is cast from the upper side of the composite beam and the deck plate to form a bottom surface, and integrates the deck plate and the composite beam.

Preferably, the deck plate, a deck plate forming a plurality of irregularities while connecting the protruding surface and the inlet surface alternately arranged with a height difference in the first direction in the width direction; And an end inclined surface formed to be inclined downward on both end regions of the deck plate in the second direction in the longitudinal direction.

Preferably, the pouring concrete, the filling concrete is poured into the interior of the closed section of the composite beam; And, the closed section, and the bottom concrete that is placed on the upper side of the deck plate; provided, the bottom portion of the bottom concrete, the upper end of the composite beam or the top surface of the deck plate can be disposed at the same height have.

As one aspect for achieving the above object, the present invention is a pillar member having an outer diaphragm; And a composite beam joined to the external diaphragm.

Preferably, the end member including the connecting portion of the pillar member and the composite beam in the longitudinal direction, the end tension reinforcement bar disposed on the upper side on the cross section of the end region; may further include.

According to an embodiment of the present invention, it is possible to reduce the floor height, it is possible to reduce the construction cost.

According to an embodiment of the present invention, there is an effect that the load during construction can be supported by the introduced prestress.

1 is a view showing a composite beam of the present invention.
2 is a cross-sectional view taken along line AA′ in FIG. 2.
Figure 3a is a view showing a state in which the composite beam of the present invention is bonded to the pillar member.
3B is a view showing a state in which a prestressed state is introduced into the composite beam of the present invention.
3C is a view showing a state in which pour concrete is formed on the upper side of FIG. 3B.
4 is a plan view of a deck plate installed in the composite beam of the present invention.
5A to 5D are views showing various bonding details of the composite beam of the present invention when viewed from the direction BB' of FIG. 4.
6 is a plan view of the composite beam of the present invention installed on a pillar member.
7 is a cross-sectional view taken along line CC′ in FIG. 6.
8 is a cross-sectional view taken along line DD′ in FIG. 6.
9 is a view showing the bonding details of the composite beam of the present invention when viewed from the direction EE' of FIG. 6.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for a more clear description.

Hereinafter, the composite beam 20 according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 5D, the composite beam 20 according to an embodiment of the present invention includes a body member 100, a closed cross-section plate 200, a section steel member 300, and a tension member 400 , In addition, it may include a bonding reinforcement (500).

1 and 2, the composite beam 20 of the present invention is formed extending in the longitudinal direction, the upper body member 100 having a cross-section open, and the upper body member 100 is bonded to the With the main body member 100 to form a closed cross-section (M), and the closed end plate 200 of the flat plate is formed with a concrete hole 210 through which the concrete is introduced through the upper region of the closed cross-section (M) , It is bonded to the upper side of the closed cross-section plate material 200, the steel member 300 is embedded in the pouring concrete 50, and disposed in the inner region of the closed cross-section (M), the height of the body member 100 It may include a tension member 400 is disposed in the longitudinal direction in the longitudinal direction to generate the pre-stress (F).

1 and 3A, the body member 100 extends in the longitudinal direction of the composite beam 20, and may be configured as a cross section of an open top.

The body member 100 may include a bottom plate 110 and an inclined plate 130 formed to extend upwardly at both ends of the bottom plate 110.

Concrete may be poured into the body member 100 to form a pour concrete 50, and concrete is not poured outside the body member 100.

The outer surface of the body member 100 may be exposed to a space such as an indoor space.

Referring to FIG. 3C, as an example, the outer surface of the body member 100 may be exposed as an indoor space of a building or a space formed on an upper side of a ceiling plate of a building.

End plates 150 are formed at both ends of the body member 100 to form an inner space in which concrete is poured together with the bottom plate 110 and the inclined plate 130.

The body member 100, the closed cross-section plate 200, and the section steel member 300 may be formed of a metal plate (for example, a steel plate) that is a metal material.

Accordingly, the composite beam 20 can be increased in cross-section stiffness while the metal material and concrete are strongly synthesized.

The pouring concrete 50 may be divided into a filling concrete 51 poured inside the closed end face M and a floor concrete 53 placed in an upper region of the closed end face plate 200.

1 and 2, the closed cross-section plate 200 may be formed to be relatively longer than the main body member 100 in the longitudinal direction, and may be formed relatively wider than the main body member 100 in the width direction.

That is, the end plate 150 of the body member 100 may be disposed in the end region of the closed end plate material 200.

The closed cross-section plate 200 may be welded to the upper side of the body member 100 to form a closed cross-section (M) together with the body member 100.

The closed cross-section plate 200 is a portion where the concrete hole 210 is not formed, the main body member 100 may form a closed cross-section (M) on the cross-section with the closed cross-section plate 200.

The closed cross-section plate 200 may form a closed cross-section (M) together with the main body member (100) to increase the cross-section rigidity to stably support the load applied to the closed cross-section (M).

The closed cross-section plate 200 may serve as a load supporting role and a formwork of the pouring concrete 50 together with the deck plate 40 or half PC.

The closed cross-section plate 200 may form a deck plate 40 or a mounting portion of a half PC.

Of course, the closed cross-section plate 200 may form a mounting portion of the formwork.

The closed cross-section plate 200 may be formed relatively larger than the width of the upper flange 310 of the section steel member 300.

2 and 3C, the section steel member 300 is bonded to the upper side of the closed cross-section plate 200, and the whole may be embedded in the pour concrete 50.

Both ends of the section steel member 300 may be joined to the column member 10, the section member 300 may be bonded to the outer diaphragm 11 of the column member 10 via a bonding plate 30.

Referring to Figures 3a to 3c, the tension member 400 is disposed in the longitudinal direction therein and is installed in both end regions of the body member 100 via the fixing plate 430 to introduce a prestress by introducing a compressive force. can do.

Referring to FIG. 1, the tension member 400 may be disposed in a lower region in the height direction on the cross section of the body member 100.

That is, the tension member 400 may be disposed in the lower region in the height direction on the body member 100 and the closed end face M formed by the closed end plate member 200.

In this way, the composite beam 20 of the present invention is the tension member 400 is disposed inside the closed cross-section (M) to reduce the floor height, thereby reducing the construction cost.

Referring to Figure 3a, it is installed inside the body member 100, it may be disposed in the lower region of the closed end surface (M) formed by the body member 100 and the closed end plate 200.

Referring to FIG. 3B, the tension introducing material 410 of the tension member 400 is fixed to the fixing plate 430 in a state in which tensile force is introduced to the end plate 150 of the main body member 100 and is prestressed with bending stress upward. (F) can occur.

Referring to FIG. 3C, as described above, pour concrete 50 may be formed in a state in which bending stress is introduced upward by the tension member 400.

In this way, the load during construction can be supported by the prestress introduced by the tension member 400, and at least a part of installation such as a copper wheel for supporting the load during construction can be omitted, thereby shortening the construction period. There is an effect that can reduce the construction cost.

1 and 2, the closed cross-section plate 200 forms a closed cross-section (M) having an inverted trapezoidal shape with at least a hollow inside the main body member 100, and the closed cross-section (M) A concrete hole 210 through which concrete can flow into the interior may be formed to be spaced apart in the longitudinal direction.

The closed cross-section plate 200 may form a closed cross-section (M) of at least an inverted trapezoidal shape on the cross section together with the main body member (100).

Referring to FIG. 2, the closed cross-section plate 200 is joined to the upper side of the body member 100 to form a closed cross-section (M) of at least an inverted trapezoidal shape on the cross section together with the body member 100 and the body member 100 It may be extended to both sides of the.

As another example, although not shown, the closed cross-section plate material 200 is joined to the upper side of the main body member 100 to form only a closed cross-section (M) having an inverted trapezoid shape, and is not formed to extend beyond the closed cross-section (M). It may not.

1 and 4, a plurality of rows are installed in the longitudinal direction of the closed cross-section plate 200, and the concrete holes 210 constituting adjacent rows may be alternately arranged.

The concrete hole 210 may be disposed to be staggered with each other on the longitudinal direction of the closed cross-section plate 200 around the web member 330 of the section steel member 300.

A plurality of concrete holes 210 may be spaced apart in the longitudinal direction of the closed cross-section plate 200, respectively on both sides in the width direction of the closed cross-section plate 200 around the web member 330 of the section steel member 300 A plurality may be arranged.

When the concrete hole 210 constituting the adjacent concrete hole 210 is located on the cross-section together, the yield strength may decrease.

In the composite beam 20 of the present invention, the concrete holes 210 constituting adjacent rows are staggered to each other, thereby minimizing the load loss on the cross section.

Referring to FIG. 4, the concrete hole 210 is a long concrete first concrete hole 210-1 disposed at the left side in the width direction from the center of the web member 330 of the section steel member 300, and the web member The first concrete hole 210-1 and the second concrete hole 210-2 are provided with a long concrete second concrete hole 210-2 disposed on the right side in the width direction from the center of 330. The closed end plate 200 may be disposed at different positions in the longitudinal direction.

The first concrete hole 210-1 and the second concrete hole 210-2 may be formed as a long hole having a long length in the longitudinal direction, and may be formed as a rectangular hole or a long hole with an end rounded.

At this time, the first concrete hole 210-1 and the second concrete hole 210-2 may be formed of holes of the same size.

For example, the first concrete hole 210-1 and the second concrete hole 210-2 may be staggered in the longitudinal direction at least 0.5 times the length of the long side of the hole.

As another example, the first concrete hole 210-1 and the second concrete hole 210-2 may be staggered in the longitudinal direction with a gap of at least one times the length of the long side of the hole.

The composite beam 20 of the present invention is the same in the longitudinal direction as the first concrete hole 210-1 and the second concrete hole 210-2 constituting adjacent rows are alternately arranged in the longitudinal direction on the closed cross-section plate 200. When the first concrete hole 210-1 and the second concrete hole 210-2 are disposed on the cross-section, a decrease in proof load that may occur can be minimized.

1 and 2, the main body member 100 includes a bottom plate 110 and an inclined plate 130 formed to be inclined upward at both side ends of the bottom plate 110, and the closed end plate material ( In the region where the concrete hole 210 is not formed, 200 may form a closed cross-section (M) of at least an inverted trapezoidal shape on the cross-section while being welded to the top of the inclined plate 130.

Of course, although not shown, the body member 100 may be formed of a mounting plate extending in the horizontal direction from the inclined plate 130, the mounting plate and the closed cross-section plate material 200 may be welded.

1 and 2, the section steel member 300 includes an upper flange 310 and a web member 330 extending downward from a lower surface of the upper flange 310, and the web member ( As the 330) is joined to the upper surface of the closed cross-section plate 200, a'I'-shaped cross section having a relatively large width at the bottom may be formed.

3A and 3B, the tension member 400 is disposed in the longitudinal direction inside the fixing plate 430 and the body member 100, which are installed at both end regions of the body member 100. It is possible to provide a tension introducing material 410 that generates a bending stress upward while being fixed to the fixing plate 430.

Referring to Figure 3b, the tension introducing material 410 is installed on the fixing plate 430 installed at both ends of the body member 100, the tension is provided to the tension introducing material 410 fixed to the fixing plate 430 In the meantime, upward bending stress may be generated in the main body member 100, the closed cross-section plate material 200 connected to the upper side of the main body member 100, and the section steel member 300.

As an example, the tension introducing material 410 may be composed of a tension member having a plurality of twisted strands, and a fixer fixing the tension member to the fixing plate 430.

In this way, the main body member 100, the closed cross-section plate material 200, and the body member through the concrete hole 210 formed in the closed cross-section (M) in a state in which prestress forming upward bending stress is introduced into the section steel member 300 Concrete may be poured into the interior space of (100).

At this time, the load during construction can be supported by the prestress introduced by the tension member 400, and at least a part of the installation such as a round bar for supporting the load during construction can be omitted, shortening the construction period and construction You can save money.

Referring to Figures 5b to 5d, the composite beam 20 of the present invention is installed in connection with the section steel member 300, may further include a bonding reinforcement 500 to join and secure the deck plate 40 have.

The joint reinforcement 500 is installed in connection with the section steel member 300 and may provide a fixed portion of the deck plate 40.

It is mounted on the upper surface of the upper flange 310 of the section steel member 300, or is joined to the deck plate 40 in a state where it is joined to the upper surface of the upper flange 310, thereby linking the deck plate 40 with the section steel member 300. Can be installed.

The lower surface of the deck plate 40 is joined to the upper surface of the closed cross-section plate material 200, and the upper surface of the deck plate 40 can be joined to the bonding reinforcement 500 so that the deck plate 40 is attached to the composite beam 20. It can be fixed firmly.

Accordingly, when the concrete is poured from the upper side of the deck plate 40 and the composite beam 20 to form the pouring concrete 50 including the filling concrete 51 and the floor concrete 53, the construction of the pouring concrete 50 The load of the composite beam 20 and the deck plate 40 can be stably supported.

Referring to Figure 5b, the joint reinforcement 500 is mounted on the upper surface of the section steel member 300, the lower portion of the open'C' shaped cross-section 510 and the mounting hardware 510 ) Is formed in a bent shape at both side ends, and may include a pair of deck bonding hardware 530 joined to the upper side of the inner inlet surface 42 of the deck plate 40.

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Referring to Figure 5c, the composite beam 20 of the present invention is installed through a web hole 331 formed in the web member 330 of the section steel member 300, the deck plate 40 is fixed by bonding The junction reinforcement 500 may be further included.

A plurality of web holes 331 may be formed to be spaced apart in the longitudinal direction on the web member 330, and a junction reinforcement 500 may be installed through at least some of the plurality of web holes 331.

In the state where the joint reinforcement 500 penetrates the web hole 331, the bottom concrete 53 of the pour concrete 50 is poured into the joint reinforcement 500 and the web hole 331 to slip against the shear. Can resist.

The joint reinforcement 500 is installed through the web hole 331 formed in the web member 330 of the section steel member 300, and can be joined to the upper side of the inner inlet surface 42 of the deck plate 40. have.

The deck plate 40 and the section steel member 300 can be firmly connected to each other via the joint reinforcement 500 and the floor concrete 53, and the floor concrete 53 is installed in connection with the web hole 331. As it is, it can resist the shear load.

Referring to Figure 5d, the joint reinforcement 500 is mounted on the upper surface of the section steel member 300, the lower portion of the pair of mounting hardware 510 having a'b' shaped cross-section, and the mounting A pair of deck-joined hardware 530 which are formed in bent shapes at the ends of the hardware 510 and are joined to the upper side of the inner inlet surface 42 of the deck plate 40 may be provided.

Next, the floor structure will be described in detail with reference to the drawings.

Referring to Figures 1 to 5d, the floor structure according to an embodiment of the present invention may include a composite beam 20, deck plate 40, pour concrete (50).

The floor structure is installed on the composite beam 20 described above, the composite beam 20, and placed on the deck plate 40 and the upper side of the composite beam 20 and the deck plate 40 to form a bottom surface, and It may include a pour concrete (50) that integrates the composite beam 20 and the deck plate (40).

4A and 5A, the deck plate 40 has a plurality of irregularities while the protruding surfaces 41 and the inlet surfaces 42 are alternately arranged with a height difference in a first direction in the width direction. A deck plate 40 forming a portion and an end inclined surface 47 formed to be inclined downward at both end regions of the deck plate 40 in the second direction in the longitudinal direction may be provided.

The deck plate 40 may form a plurality of irregularities while the protruding surfaces 41 and the inlet surfaces 42 alternately arranged at different heights are connected via the inclined surfaces 43.

The deck plate 40 has a protruding surface 41 and an inlet surface 42 connected via an inclined surface 43 as a medium, and a trapezoidal irregularity may be repeatedly formed to have a shape resistance to load support.

The inclined surface 43 may be formed with a plurality of shear holes 45 spaced apart in the longitudinal direction.

As for the end inclined surface 47, both end regions in the second direction of the deck plate 40 are pressurized by a pressing device such as a press, and the projecting surface 41 and inclined surface 43 of the deck plate 40 are pressed by the pressing device. ) Can be formed by bending and bending downward.

The deck plate 40 may have a hollow portion S that forms a plurality of rows in the longitudinal direction.

The end inclined surface 47 forms a downwardly inclined surface 43 at the upper end of the deck plate 40 in both end areas to seal both ends in the second direction, thereby providing a central area in the second direction, which is the longitudinal direction of the deck plate 40. The hollow portion S can be introduced.

The end inclined surfaces 47 may be formed while both end regions in the second direction of the deck plate 40 are pressed by the press.

The deck plate 40 is surrounded by the protruding surfaces 41 and the inclined surfaces 43 formed on both sides of the protruding surfaces 41 in the first direction, and the protruding surfaces ( 41) and the hollow portion S may be formed while being surrounded by the end inclined surfaces 47 formed on both sides of the protruding surface 41.

By forming a hollow portion (S) in the floor structure of the present invention to reduce the amount of construction of concrete to reduce the self-weight of the floor structure through the hollow portion (S), there is an effect that can reduce the construction cost.

The pouring concrete 50 is a filling concrete 51 that is poured into the closed section M of the composite beam 20 and a floor that is poured over the closed section M and the deck plate 40. The concrete 53 is provided, and the lower portion of the floor concrete 53 may be disposed at a height equal to the upper surface of the closed end surface M of the composite beam 20 or the upper surface of the deck plate 40.

In addition, various embodiments of the composite beam 20 having various embodiments described above can be applied to the floor structure of the present invention.

Therefore, the composition of the body member 100, the closed cross-section plate 200, the section steel member 300, and the tension member 400 of the composite beam 20 used in the floor structure is the same as that of the composite beam 20, as already described. Identical description of this is omitted to avoid duplication.

Next, with reference to the drawings will be described in detail with respect to the bonding structure of the composite beam and the pillar member.

6 to 9, the joining structure of the composite beam and the pillar member according to an embodiment of the present invention includes a pillar member 10 and a composite beam 20, and additionally includes an end tension stiffener 60 Can.

6 to 8, the joining structure of the composite beam and the pillar member may include a pillar member 10 on which the outer diaphragm 11 is formed, and a composite beam 20 joined to the outer diaphragm 11.

The upper flange of the outer diaphragm 11 of the pillar member 10 may be composed of a relatively thick steel plate than the lower flange of the outer diaphragm 11. This is because the tensile force acts on the upper region around the pillar member 10 to which the pillar member 10 and the composite beam 20 are connected.

For example, the upper flange of the outer diaphragm 11 of the pillar member 10 may have a thickness of 19 mm and the lower flange of 15 mm.

The section steel member 300 of the composite beam 20 and the closed cross-section plate 200 may be configured to have the same length in the longitudinal direction.

The ends of the section steel member 300 and the closed cross-section plate 200 of the composite beam 20 are joined via a bonding plate 30 in a state in which the end faces of the outer diaphragm 11 of the pillar member 10 face each other. Can be.

For example, the outer diaphragm 11 of the pillar member 10 is a component in the joining direction of the composite beam 20 composed of H-shaped steel, the upper flange of the outer diaphragm 11, the web of the section steel member 300 The upper flange 310, the web member 330 and the end are joined in abutted state, and the lower flange of the outer diaphragm 11 can be joined in a state in which the end face and the end face plate 200 are in an abutted state.

Referring to Figures 7 and 9, the joining structure of the composite beam and the pillar member is installed in the longitudinal direction in the end region including the connecting portion of the pillar member 10 and the composite beam 20, on the cross section of the end region It may further include an end tensile stiffener 60 disposed on the upper side.

End tension reinforcement 60 serves to reinforce the tensile force acting on the upper region on the cross section of the end region.

The end tensile reinforcement 60 is installed separately from the field construction root 55 installed inside the pour concrete 50, and may be installed at a connection portion between the pillar member 10 and the composite beam 20.

When connecting the pillar member 10 and the composite beam 20, in the central region of the composite beam 20, tensile force acts on the lower region of the cross section of the composite beam 20, but the connecting portion between the pillar member 10 and the composite beam 20 In the end region including the tensile force acts on the upper region.

The bonding structure between the composite beam and the pillar member of the present invention includes an end tensile reinforcement 60 along with a field construction root 55 embedded in the floor concrete 53 of the pour concrete 50,

In the end region including the connecting portion of the composite diaphragm 20 and the outer diaphragm 11 of the pillar member 10, the end tension reinforcing bar 60 is disposed in the upper region of the cross section, thereby making the pillar member 10 and the composite beam 20 It can reinforce the tensile force acting on the end region including the connecting portion of.

7 and 9, the end tension reinforcement 60 is a first upper tensile muscle 60-1 and a shape steel member installed in an upper region of the upper flange 310 of the shape steel member 300, 300 may be provided with a second upper tensile muscle (60-2) installed in the lower region of the upper flange (310).

Referring to FIG. 9, the end tensile stiffener 60 faces the first upper extensor muscle 60-1 and the second upper extremity muscle 60-2 with the upper flange 310 of the section steel member 300 therebetween. Can be deployed.

At this time, the on-site construction muscles 55 buried in the pour concrete 50 may be separately installed on the upper sides of the second upper tensile muscles 60-2 and the first upper tensile muscles 60-1.

The outer diaphragm 11 of the pillar member 10 may be coupled via the reinforcing joint plate 30 in a state in which the shape steel members 300 of the composite beam 20 face each other.

The bonding plate 30 includes a first bonding plate 30 connecting the web member 330 of the section steel member 300 and the web of the external diaphragm 11, and an upper flange of the section steel member 300 A second bonding plate 30 may be provided to connect between the 310 and the upper flange of the outer diaphragm 11, or between the closed end plate 200 and the lower flange of the outer diaphragm 11. .

The first bonding plate 30 and the second bonding plate 30 are bolted to the regions of both sides to which they are connected, and are connected between the section steel member 300 and the outer diaphragm 11, or a closed cross-section. The plate material 200 and the external diaphragm 11 may be connected.

It is possible to perform full penetration welding so that the connecting portion between the section steel member 300 and the outer diaphragm 11 is welded to the web member 330 of the section steel member 300 and the web of the outer diaphragm 11.

In addition, various embodiments of the composite beam 20 having various embodiments described above can be applied to the bonding structure between the composite beam and the pillar member of the present invention.

Therefore, the composition of the body member 100, the closed cross-section plate 200, the section steel member 300, and the tension member 400 of the composite beam 20 utilized in the joining structure of the composite beam and the pillar member is a composite beam ( It is the same as the structure of 20), and detailed description of it is omitted to avoid duplication.

Although the embodiments of the present invention have been described in detail above, the scope of rights of the present invention is not limited to this, and various modifications and variations are possible without departing from the technical spirit of the present invention as set forth in the claims. It will be apparent to those of ordinary skill in the field.

10: Pillar member 11: External diaphragm
20: composite beam 30: bonding plate
40: deck plate 41: protruding surface
42: interior entrance 43: slope
45: shear hole 47: end slope
50: pouring concrete 51: charging concrete
53: floor concrete 55: construction on site
60: End Tensile Reinforcement Muscle 60-1: First Upper Tensile Muscle
60-2: second upper tensile muscle 100: body member
110: bottom plate 130: inclined plate
150: end plate 200: closed end plate material
210: concrete hall 210-1: first concrete hall
210-2: Second concrete hole 300: Section steel member
310: upper flange 330: web member
331: web hole 400: tension member
410: tension introduction material 430: fixing plate
500: joint reinforced steel 510: mounted steel
530: deck joint hardware F: prestress
M: Closed section S: Hollow section

Claims (16)

A body member extending in the longitudinal direction and having a cross section with an open top;
A plate-shaped closed cross-section plate which is joined to an upper side of the main body member to form a closed cross-section together with the main body member, and a concrete hole through which concrete is introduced through an upper region of the closed cross-section;
A section steel member which is joined to the upper side of the closed cross-section plate material and is embedded in the pouring concrete;
A tension member disposed in an inner region of the closed end face and disposed in a longitudinal direction in a height lower region of the body member to generate a prestress; And,
It is installed in connection with the section steel member, the bonding reinforcement for bonding and fixing the deck plate; includes,
The body member,
It is provided with a bottom plate and an inclined plate that is formed to be inclined upward at both ends of the bottom plate,
The closed cross-section plate material,
In the region where the concrete hole is not formed, while being welded to the inclined plate in a state mounted on the upper end of the inclined plate, form a closed cross section of at least an inverted trapezoidal shape on a cross section,
The joint reinforcement,
A mounting hardware mounted on the upper surface of the section steel member and having a'c'-shaped cross section with an open lower portion; And,
A composite beam comprising; a pair of deck-bonded hardware formed in a bent shape at both end portions of the mounting hardware and joined to an upper side of the inner inlet surface of the deck plate mounted on the closed end plate.
According to claim 1, The closed cross-section plate,
A composite beam formed by forming a closed cross section of a hollow trapezoid shape with at least a hollow inside the body member, and a concrete hole in which concrete can be introduced into the closed section is spaced apart in the longitudinal direction.
According to claim 1, The concrete hole,
A composite beam in which a plurality of rows are installed in the longitudinal direction of the closed cross-section plate, and the concrete holes forming adjacent rows are staggered.
According to claim 1, The concrete hole,
A first concrete hole of a long hole shape disposed at a left side in the width direction from the center of the web member of the section steel member; And,
Equipped with a long concrete-shaped second concrete hole disposed on the right side in the width direction from the center of the web member,
The first concrete hole and the second concrete hole is a composite beam, characterized in that arranged in different positions in the longitudinal direction of the closed section plate.
delete According to claim 1, wherein the section member,
An upper flange and a web member extending downward from a lower surface of the upper flange,
A composite beam characterized in that the web member forms a'I'-shaped cross section with a relatively large width at the bottom while being joined to the upper surface of the closed end plate.
According to claim 1, The tension member,
A fixing plate installed at both end regions of the body member; And,
A synthetic beam comprising; a tension introduction material disposed in the longitudinal direction inside the main body member and generating a bending stress upward while being fixed to the fixing plate.
delete delete delete delete The synthetic beam according to any one of claims 1 to 4, 6, and 7;
A deck plate installed on the composite beam; And,
A floor structure comprising; a pour concrete that is cast from the upper side of the composite beam and the deck plate to form a bottom surface, and integrates the deck plate and the composite beam.
The method of claim 12, wherein the deck plate,
A plurality of irregularities are formed while the protruding surfaces and the inlet surfaces alternately arranged with a height difference in the first direction in the width direction are connected,
The deck plate is a floor structure further comprising; an end inclined surface formed downwardly inclined at both end regions of the deck plate in the second direction in the longitudinal direction.
The method of claim 12, wherein the pouring concrete,
Filling concrete poured inside the closed section of the composite beam; And,
It is provided with; the closed section and the bottom concrete that is poured over the deck plate;
The bottom portion of the floor concrete,
A floor structure characterized in that it is disposed at the same height as the upper surface of the closed section of the composite beam or the upper surface of the deck plate.
Column member formed with an external diaphragm; And,
A composite structure comprising a composite beam according to any one of claims 1 to 4, 6, and 7, which is joined to the external diaphragm.
The method of claim 15,
A joint structure of a composite beam and a pillar member further comprising; an end tensile reinforcement bar installed longitudinally in an end region including the connecting portion of the pillar member and the composite beam, and disposed above the cross section of the end region.

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