KR20180070813A - Wide composite structure for reinforcing the connecting part of girders and column - Google Patents

Abstract

According to the present invention, a wide composite structure is formed with first and second girders vertically coupled to each other and a column, wherein a connection part between the second girder and the column and the second girder and the first girder is reinforced to increase resistance with respect to a shearing force and bending moment. Moreover, a support length of a small girder connecting the first girder can be reduced for a height of the small girder to be reduced. In addition, rigidity is increased to supplement vibration vulnerability that a steel structure has.

Description

[0001] The present invention relates to a wide composite structure for reinforcing a portion where a beam and a column are connected to each other,

The present invention relates to a wide composite structure, and more particularly, to a structure having a first and a second beams and columns vertically coupled to each other, a portion of the second beam connected to the column and the first beam is reinforced and a shear force and a bending moment And the support length (span length) of the small beam connecting the first beams to each other can be reduced, so that the small beam can be reduced and the rigidity can be increased. Therefore, Wide composite structure.

Generally, it is installed to connect pillars and columns viewed from a building or to connect columns and walls. The maximum deflection of the beam increases sharply as the beam length increases.

For example, as shown in Fig. 1, when the beam 1 is installed to connect the column 3, the maximum deflection amount d of the beam 1 increases as the distance L between the columns increases. On the other hand, the dotted line in the drawing shows a state in which the beam falls down due to the load.

The use of a steel having a large Young's Modulus (E) to reduce the maximum deflection (d) increases the construction cost, which is economically undesirable. When a steel having a large second moment (I) is used, There is a problem that it is increased.

Therefore, it is necessary to construct construction that can reduce deflection and vibration, and reduce construction cost and floor height.

The present invention has been proposed in order to solve the above problems. In the structure comprising first and second beams and columns vertically coupled to each other, a portion of the second beam connected to the column and the first beam is reinforced and the shear force and bending moment The object of the present invention is to provide a structure with increased resistance.

It is a further object of the present invention to reduce the support length (span length) of the small beams connecting the first beams to each other, thereby reducing deflection and vibration of the small beams, thereby reducing the number of beams, And a structure advantageous for high load and long span construction.

Another object of the present invention is to provide a structure that can compensate for the weakness of vibration of a steel structure due to increased rigidity.

Another object of the present invention is to connect a small beam to a first beam by semi-rigid joining or steel joining to reduce deflection, cracking and vibration at the time of construction and use, thereby reducing the amount of steel material used, And to provide an easy structure.

It is still another object of the present invention to provide a method of increasing the structural safety and field workability of joining a wide beam to a column (PC, CFT, etc.).

A wide composite structure according to the present invention includes: a column; A pair of first beams 130 spaced apart from each other by a predetermined distance s1 in parallel with each other; And a second beam 140, 240, 340, and 440 that are vertically coupled to the first beam 130.

The second beams 140, 240, 340, and 440 may include column connecting portions 143, 243, 343, and 443 for reinforcing a portion connected to the column; And main body portions 141, 241, 341, and 441 that are continuous from the column connecting portions 143, 243, 343, and 443 and made up of one beam.

The column connection portions 143, 243, 343 and 443 may include two or more beams or may be formed of a beam having a larger balance than the main portions 141, 241, 341 and 441, The upper flange of the body portion 141, 241, 341, 441, or the upper flange of the body portion 141, 241, 341, 441 is thicker or thicker than the lower flange. The reinforcing steel material 346 is reinforced at the lower portion, or the tensile reinforcing steel is reinforced at the upper portion thereof. Accordingly, the portions where the first and second beams and the column meet can be reinforced.

The first beam 130 is coupled to the column connection portions 143, 243, 343, and 443, and the first beam 130 is positioned outside the column.

Specifically, when the column is the PC column 110, the column connecting portions 143 are spaced apart from each other by a predetermined distance s2 in parallel to each other, and a pair of first H- A steel material 144; And a pair of second H-shaped members 144 disposed in a direction perpendicular to the first H-shaped steel member 144 and spaced from each other at a predetermined interval s3 in parallel to each other, A steel material 145; And a third H-shaped steel member 146 coupled to both longitudinal ends of the first H-shaped steel member 144 and coupled in a direction perpendicular to the first H-shaped steel member 144.

The third H-shaped steel material 146 is located outside the PC column 110. The first H-shaped steel material 146 is joined to the longitudinal end of the third H-shaped steel material 146, The main body 141 is coupled to the outer side surface of the main body 141. [

The predetermined intervals s2 and s3 are the intervals at which the first H-shaped steel member 144 and the second H-shaped steel member 145 can be placed on the upper surface of the PC column 110, respectively.

A cruciform stiffener 114 may be provided in the space sp formed by the pair of first H-shaped members 144 and the pair of second H-shaped members 145. The cross-shaped stiffener 114 connects the pair of first H-shaped steels 144 to each other and connects the pair of second H-shaped steels 145 to each other. Concrete is placed in the space sp to form a part of the column.

When the column is the SRC column 210, the column connecting portion 243 includes a pair of first H-shaped steels 244 spaced apart from each other by a predetermined distance s4 in parallel with each other; And a second H-shaped steel material (245) joined to both ends of the first H-shaped steel material (244) in a direction perpendicular to the first H-shaped steel material (244).

The side of the first H-shaped steel material 244 is joined to the end of the second connecting steel material 213 of the column. The first beam 130 is coupled to one longitudinal end of the second H-shaped steel material 245 and the side surface of the main body 241 is coupled to the other end of the second H-shaped steel material 245 in the longitudinal direction. The end of the body portion 241 is coupled to the end of the first connecting steel member 212. The main body portion 241 and the first connecting steel material 212 are located on the same straight line.

In place of the first H-shaped steel member 244 and the second connecting steel member 213, a steel material (shear key) composed of an iron plate and a stud bolt may be disposed to reduce the amount of steel material and form a shear reinforcement structure .

The wide composite structure according to the present invention can also be applied to CFT columns, steel columns, reinforced RC columns, and the like. For example, in the case of a steel column (steel column), the column connecting portion 343 includes a first H-shaped steel member 341 which is joined to both side surfaces of the main body portion 341 in a direction perpendicular to the longitudinal direction of the main body portion 341, (344); A triangular shaped reinforcing rib 345 coupled to the upper and lower flanges of the first H-shaped portion 344 and the body portion 341; And a reinforcing steel material 346 provided on the lower flange of the body portion 341 from both sides of the column to a predetermined section. The first beam 130 is coupled to the longitudinal end of the first H-shaped steel member 344. A tensile steel bar may be placed on the upper side between the first beams 130 in place of the reinforcing steel material 346 or in place of the reinforcing steel material 346. [

The end of the main body 441 is coupled to the column 110 and the end of the first beam 130 is coupled to the side of the main body 441.

The column connecting portion 443 may include a first H-shaped steel material 444 and a second H-shaped steel material 445. The first H-shaped steel material 444 is installed on both sides of the column 110 so as to connect the pair of first beams 130 to each other and the second H-shaped steel material 445 is installed on both sides of the column 110 And are located farther from the pillar 110 than the first H-shaped steel material 444. The first H-shaped steel material 444 is connected to the first beam 130,

The main body portion 441 and the main body portion 441 are spaced apart from each other in the pillar 110, and the pillar reinforcement can be disposed in the spaced apart spaces.

If the amount of the pillar reinforcement is not large enough to cause interference with the main body portion 441, the main body portion 441 may be disposed in a continuous manner through the pillar 110.

The concrete c2 can be filled and filled in the space surrounded by the pair of first beams 130 and the second H-shaped steel members 445. The concrete c2 may be laid together with the slab concrete sc or laid before the slab concrete sc. In the case where the concrete c2 is installed together with the slab concrete (sc), the main body portion 441 can secure sufficient strength against the construction load or transmit the normal moment. If not, (E. G., ≪ / RTI > for example). In contrast, when the slab concrete (sc) is laid after the concrete (c2) is first laid to secure the required strength or more at the time of construction, the rigidity of the column 110 and the column connecting portion 443 is secured. sc) supporting the piling load.

The lower flange of the first H-shaped steel material 444 is joined at the same height to the lower flange side of the first beam 130 and the upper flange of the second H-shaped steel material 445 is joined to the upper flange of the first beam 130 As shown in FIG. In this case, the concrete c2 between the first and second H-shaped members 444 and 445 may form a stepped shape along the first and second H-shaped members 444 and 445, have. This configuration can reduce the amount of concrete.

In the present invention, small beams 160 may be installed on both sides or one side of the first beam 130. The small beam 160 may be coupled to the first beam 130 by the connection unit 500 (500a).

The connection units 500 and 500a include a top plate 510 having a predetermined number of first bolt holes 512 formed therein and a bottom plate 522 having a second bolt hole 522 formed at a position corresponding to the first bolt hole 512, (520): a spacer plate (530) installed between the upper plate (510) and the lower plate (520) to maintain a space between the upper and lower plates (510, 520); An end plate 540 coupled to an end of the upper and lower plates 510 and 520 so as to be perpendicular to the upper and lower plates 510 and 520 and formed with a third bolt hole 542; And a support member 550 installed on at least one of the upper plate 510 and the lower plate 520 to support the end plate 540 such that the upper and lower plates 510 and 520 are perpendicular to the end plate 540, .

A lower flange 165 of the small beam 160 is inserted between the upper and lower plates 510 and 520 and a bolt passing through the first and second bolt holes 512 and 522 and the lower flange 165 is installed The small beam 160 is connected to the connecting unit.

A bolt for fastening the end plate 540 to the web 133 of the first beam 130 is provided in the third bolt hole 542. [

When the small beams 160 are connected to both sides of the web 133 of the first beam 130, the small beams 160 are preferably installed to face each other.

The present invention has the following effects.

First, in the structure consisting of the first and second beams and the columns vertically coupled to each other, the second beam is reinforced at the portion connected to the column and the first beam, so that the resistance against the shear force and the bending moment is increased.

Second, since the supporting length (span length) of the small beams connecting the first beams can be reduced, it is possible to reduce deflection and vibration of the small beams, thereby reducing the number of beams, floor and steel materials, It is advantageous in construction.

Third, since the stiffness is increased, it is possible to compensate the vibration vulnerability of the steel structure.

Fourth, connecting the small beam to the first beam by semi-rigid joint or steel joint can reduce deflection, cracking and vibration at the time of construction and use, thereby reducing the amount of steel used and simplifying construction.

Fifth, it is possible to improve the structural safety and field construction in the joint structure of wide beam and column (PC, CFT, etc.).

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing the amount of deflection of a constructed beam according to the prior art; Fig.
2 is a perspective view showing a wide composite structure according to a first embodiment of the present invention;
FIGS. 3 and 4 are plan views showing the wide composite structure of FIG. 2, respectively. FIG.
Figure 5 is a front view of the wide composite structure of Figure 2;
6 is an enlarged view of a portion VI in Fig. 3; Fig.
FIG. 7 is a perspective view showing a column connection portion provided in the wide composite structure of FIGS. 3 and 4. FIG.
8 is a perspective view showing a wide composite structure according to a second embodiment of the present invention;
9 is an exploded perspective view showing a column connection portion and a column provided in the wide composite structure of FIG.
10 is a plan view showing the wide composite structure of FIG. 8;
11 is an enlarged view of a portion XI in Fig. 10; Fig.
12 is a plan view showing a part of a wide composite structure according to a third embodiment of the present invention;
Fig. 13 is a front view of Fig. 12; Fig.
FIG. 14 is a plan view showing a wide composite structure according to a fourth embodiment of the present invention; FIG.
15 is a cross-sectional view taken along the line XV-XV 'in Fig.
FIG. 16 is a cross-sectional view taken along the line XVI-XVI 'in FIG. 14; FIG.
FIG. 17 is a view showing part of a cross section taken along line XVII-XVII 'of FIG. 14; FIG.
18 is a perspective view showing a structure in which a small beam and a first beam are connected by a connecting unit;
FIG. 19 is an exploded perspective view of FIG. 18; FIG.
20 is a front view showing the structure of Fig. 18;
Figs. 21A and 21B are perspective views showing the connecting unit of Fig. 18; Fig.
22 is a front view of Fig.
FIG. 23 is a bottom view of FIG. 21A. FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely examples of the present invention and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

The present invention relates to a structure in which a pair of first beams are provided so as to be spaced apart from each other at a predetermined interval in parallel to each other, and a pair of first beams vertically meet with the second beam in the vicinity of the column. In the wide composite structure according to the present invention, the portion of the second beam that meets the first and second beams is constituted by a column connecting portion and the remaining portion is constituted by a normal beam. The column connecting portion has resistance to shear force and bending moment Which is characterized in that it is made larger.

This structure can be implemented for various columns and various beams. The following description is illustrative of the structure of the present invention, and the scope of the present invention should not be limited by the following exemplary description.

In the following drawings, like reference numerals denote like elements. In the following drawings, only bolt holes for connecting beams and steel materials are shown, and bolts, nuts, connection steel plates, and the like are not shown. However, these bolts and nuts are shown for simplicity and ease of understanding. And connecting steel plates are to be understood as being installed.

First Embodiment

FIG. 2 is a perspective view showing a wide composite structure according to a first embodiment of the present invention, FIGS. 3 and 4 are plan views showing the wide composite structure, and FIG. 5 is a front view of FIG. For the sake of understanding, the columns are shown in dotted lines in FIG. 2, and the detailed structure inside the columns (reinforcing bars, etc.) is omitted.

As shown in the drawing, the wide composite structure 100 includes a column 110, a pair of first beams 130 spaced apart from each other by a predetermined distance s1 in parallel with each other, And a second beam 140 coupled thereto.

The column 110 is a PC column and has a support portion 112 extending laterally so as to support the column connection portion 143. [ The supporting portion 112 has an area capable of supporting a pair of the first H-shaped steel member 144 and the second H-shaped steel member 145.

The pair of first beams 130 are spaced apart by a predetermined distance s1 so as to be parallel to each other. The first beam 130 is connected to the second beam 140 from the outside of the column 110. As the first beam 130, a typical H-shaped steel beam, steel beam, or the like may be used.

Since the pair of first beams 130 are spaced apart to form a dwelling, the wide composite structure 100 has an advantage that the rigidity is large and the vibration is reduced accordingly. Concrete may be poured between the pair of first beams 130. Concrete may be filled in the entire section of the residence and the concrete may be poured only at the end of the residence. . The concrete filling can be installed in a form of a pair of first beams (130). In the case where concrete is to be installed only at the end of the dwelling, an H-shaped steel (not shown in the figure) is installed at the boundary of the end to be perpendicular to the first beam 130 to reinforce the dwelling, It is preferable to use it.

Meanwhile, when the concrete is poured (filled) between the pair of first beams 130, a small beam connecting the pair of first beams 130 may not be installed.

The first beam 130 is connected to the first beam 130 of the neighboring residence and a small beam 160. As described above, since the pair of first beams 130 are spaced apart from each other by the predetermined distance s1, the distance between the small beams 160 is reduced correspondingly, thereby reducing the amount of deflection of the small beam 160. [ Therefore, it is advantageous because it is possible to reduce the number of beams, the amount of steel, and the like of the small beam 160.

As shown in FIG. 4, a small beam 160 may be installed between the pair of first beams 130 as well. The small beams 160 installed on both sides of the first beam 130 are preferably installed at positions facing each other.

As the small beam 160, a conventional steel beam, a composite beam, a composite beam, or the like can be used. The small beam 160 may be connected to the first beam 130 by conventional welding or bolting, but may be connected by a connecting unit. The connection unit will be described below.

Instead of the small beams 160, unidirectional slabs (PC, RC, DECk) may be used. When a one-way slab is used, a hollow member (hollow member), styrofoam, or the like may be used in the slab.

The second beam 140 includes a body portion 141 and a column connecting portion 143.

The body portion 141 may be formed of a conventional beam, for example, an H-shaped steel beam, a steel beam, or the like.

The column connecting portion 143 is connected to the end of the body portion 141 and reinforces a portion connected to the column 110 and the first beam 130. That is, in the wide composite structure according to the present invention, a pair of first beams 130 are spaced apart from each other by a predetermined distance to form a dwelling, and the first and second beams 130 and 140 are coupled to each other The shear force and the bending moment are large in the vicinity of the column. The column connecting portion 143 is a structure for reinforcing the resistance against the shear force and the bending moment.

5 and 6, the column connecting portion 143 includes a pair of first H-shaped steels 144 and a pair of first H-shaped steels 144 installed to connect the pair of first H- A second H-shaped steel material 145 and a third H-shaped steel material 146 joined to both ends of the first H-shaped steel material 144.

The pair of first H-shaped steel members 144 are spaced apart from each other by a predetermined distance s2 in parallel with each other, and are provided in the longitudinal direction of the column connecting portion 143 (the longitudinal direction of the second beam).

The pair of second H-shaped steels 145 are arranged parallel to each other at a predetermined interval s3 and are arranged in a direction perpendicular to the first H-shaped steels 144, 144).

Concrete is poured into the space sp formed by the first and second H-shaped members 144 and 145, and the poured concrete forms the pillar 110.

In addition, a cruciform stiffener 114 may be installed in the space sp. The cross-shaped stiffener 114 connects the pair of first H-shaped steels 144 to each other and connects the pair of second H-shaped steels 145 to each other.

On the other hand, the interval s2 between the pair of first H-shaped steels 144 and the interval s3 between the pair of second H-shaped steels 145 are equal to each other between the pair of first H- And the second H-shaped steel material 145 is placed on the support portion 112 and can be supported.

The third H-shaped steel material 146 is coupled to both longitudinal ends of the first H-shaped steel material 144 and is coupled in a direction perpendicular to the first H-shaped steel material 144. The third H-shaped steel material 146 is located outside the column 110. The first beam 130 is coupled to the longitudinal end of the third H-shaped member 146 and the body 141 is coupled to the outer side surface of the third H-shaped member 146.

A flange expanding steel plate 149 and a reinforcing rib 148 may be provided at the joint portion between the body 141 and the third H-shaped steel member 146. The flange expanding steel plate 149 and the reinforcing ribs 148 reinforce the engaging portions so that the stress flows smoothly.

The wide composite structure 100 has a structure in which the first and second beams 130 and 140 are coupled to each other at a position away from the column 110 and the first and second beams 130 and 140, The portion where the beam meets is reinforced by using the column connecting portion 143 to reinforce the resistance against the shear force and the bending moment in the vicinity of the column.

With the above configuration, it is possible to increase the flange width and / or thickness of the first, second and third H-shaped steels 144, 145 and 146, increase the thickness of the web, A T-shaped steel (not shown in the drawing) may be provided on the lower flange, or a tensile reinforcing bar (not shown in the figure) may be provided on the upper side of the column connecting portion 143.

Second Embodiment

FIG. 8 is a perspective view showing a wide composite structure according to a second embodiment of the present invention, and FIG. 9 is an exploded perspective view showing a column connection portion and a column provided in the wide composite structure. For ease of understanding, the columns in FIG. 8 are shown in dotted lines.

Referring to the drawing, the wide composite structure 200 includes a column 210, a pair of first beams 130 spaced apart from each other by a predetermined distance s1, (240).

The column 210 is a SRC column having a main steel frame 211 installed vertically and a first connecting steel frame 212 installed on both sides of the main steel frame 211 and a second connection A steel material 213, and a concrete c formed to surround the main steel frame 211.

The first connecting steel material 212 has one end joined to the flange of the main steel frame 211 and the other end joined to the end of the main body portion 241. The front end of the first connecting steel material 212 protrudes out of the concrete and is joined to the main body portion 241. The first connecting steel member 212 is located on the same straight line as the main body portion 241.

The second connecting steel material 213 has one end joined to the web of the main steel frame 211 and the other end joined to the side of the first H-shaped steel material 244. [

The pair of first beams 130 are spaced apart by a predetermined distance s1 so as to be parallel to each other. The first beam 130 is connected to the second beam 240 from the outside of the column 210. The configuration of the first beam 130 is the same as that of the first beam 130 of the first embodiment described above. 10 and 11, a pair of first beams 130 are connected to each other by a small beam 160, and a first beam 130 of a neighboring residence is connected to a small beam 160, Respectively. The configuration of the small beam 160 is the same as that of the small beam 160 of the first embodiment. On the other hand, when the concrete is filled (poured) between the pair of first beams 130, a small beam connecting the pair of first beams 130 may not be required.

The second beam 240 includes a body portion 241 and a column connecting portion 243.

The body portion 241 may be made of a conventional beam, for example, an H-shaped steel beam, a steel beam, or the like. The body portion 241 is the same as the body portion 141 described above.

The column connecting portion 243 is connected to the end portion of the main body 241 and includes a pair of first H-shaped steel members 244 arranged parallel to each other at a predetermined spacing s4 and a pair of first H-shaped steel members 244 And a second H-shaped steel material 245 joined to both ends of the first H-shaped steel material 244 in the direction perpendicular to the first H-shaped steel material 244.

Since the first connecting steel material 212 and the main body portion 241 are located on the same straight line, the second beam 240 is made up of substantially three beams in the vicinity of the column. This configuration increases the resistance against the shear force and the bending moment in the vicinity of the column as a whole, together with the structure in which the second connecting steel material 213 is coupled to the first H-shaped steel material 244.

In addition, the space enclosed by the first and second H-shaped steel members 244 and 245 may be filled with the concrete c1 inside the column connecting portion 243. The concrete c1 may be laid together with the slab concrete (not shown), but it may be laid before the slab concrete.

The flange width and / or thickness of the first and second H-shaped members 244 and 245 and the first and second connecting steels 212 and 213 may be increased or the thickness of the web may be increased, A T-shaped steel (not shown in the drawings) may be installed on the lower flange of the first H-shaped steel member 244 and / or the lower flange of the first connecting steel member 212 and the end of the main body 241, (Not shown in the drawing) may be provided on the upper side of the first and second reinforcing bars 243 and 243. This structure reinforces a portion where the first and second beams 130 and 240 and the column 210 meet.

Third Embodiment

FIG. 12 is a plan view showing a part of a wide composite structure according to a third embodiment of the present invention, and FIG. 13 is a front view of FIG.

The wide composite structure 300 includes a column 310, a pair of first beams 130 spaced apart at a predetermined spacing s1 in parallel to each other, (340). The first beam 130 has the same structure as the first beam 130 of the first and second embodiments.

Column 310 is a steel column having an H-shaped cross section. The body portion 341 is connected to flanges on both sides of the column 310.

The second beam 340 includes a body portion 341 and a column connecting portion 343. The body portion 341 is the same as the body portion 141 (241).

The column connecting portion 343 is connected to the end of the body portion 341 and reinforces a portion where the column 310 and the first and second beams 130 and 340 are connected.

Specifically, the column connecting portion 343 includes a first H-shaped steel member 344 coupled to both side surfaces of the main body portion 341, a first H-shaped steel member 344 coupled to the upper and lower flanges of the main body portion 341, Reinforced ribs 345 and a reinforcement steel 346 joined to the lower flange of the end of the body portion 341. The first beam 130 is coupled to the longitudinal end of the first H-shaped steel member 344.

As the reinforcing steel material 346, for example, a T-shaped steel material may be used. The reinforcing steel material 346 increases the load bearing capacity. In the figure, the T-shaped steel material is installed so as to extend from the pillar 310 to the vicinity of the first H-shaped steel material 344, but the extension length of the T-shaped steel material 346 can be increased or decreased as required. Instead of the T-shaped steel material 346, a steel material having various shapes such as elliptical steel and a-type steel may be provided.

The first H-shaped steel material 344 and the end portion of the main body portion 341 (the portion connected to the column of the main body portion) and the reinforcing steel material 346, The width or thickness of the upper and lower flanges may be larger than other portions of the body portion 341 or the thickness of the web may be thicker than other portions of the body portion. Tension bars may be provided on the upper side of the column connecting portion 343 or on the upper side of the section between the pair of first beams 130, in place of or in addition to the above structures.

However, in place of the steel column, a CFT column, a steel column, an RC column (an iron plate joined to at least a portion of the concrete surface and a beam joined to the steel plate) reinforced with an iron plate, Etc. may be used, which will be easily understood by those skilled in the art with reference to the present specification.

Fourth Embodiment

14 is a plan view showing a wide composite structure according to a fourth embodiment of the present invention.

As shown in the drawing, the wide composite structure 400 includes a column 110, a pair of first beams 130 spaced apart from each other by a predetermined distance s1 in parallel with each other, And a second beam 440 coupled thereto.

The column 110 may be a PC column, and preferably a laterally extending support 112 (see FIG. 5) may be formed at the top of the column.

The first beam 130 is installed in parallel so that the pair is spaced apart from each other by a predetermined distance s1. Both ends of the first beam 130 are coupled to the body portion 441.

The second beam 440 includes a body portion 441 and a column connecting portion 443.

The main body portion 441 may be made of H-shaped steel or the like. The main body 441 is installed in a direction perpendicular to the first beam 130. Specifically, the end portion of the first beam 130 is coupled to the side surface of the main body portion 441, and the coupling may be formed by pin bonding or strong bonding (Moment bonding).

Both ends of the body portion 441 are coupled to the column 110. The main body portion 441 and the main body portion 441 are spaced apart from each other at the pillar 110, and the pillar reinforcement can be disposed in the spaced apart space. However, when the amount of the pillar reinforcement is not large enough to cause interference with the main body portion 441, the main body portion 441 may be disposed in a continuous manner through the pillar 110.

The column connection portion 443 includes a first H-shaped steel member 444, a second H-shaped steel member 445, and concrete c2.

The first H-shaped steel material 444 is installed on both sides of the column 110, and connects the pair of first beams 130 in a direction perpendicular to the first beam 130.

The distance G1 between the first H-shaped steel member 444 and the column 110 is preferably 1/4 to 1/10 of the distance G2 between the columns 110 (G1 = (1/4 - 1/10) x G2].

As shown in FIG. 15, the first H-shaped steel material 444 may be installed at the lower side of the first beam 130. More specifically, the first H-shaped steel material 444 is connected to the first beam 130 by the connecting member 135.

The second H-shaped steel material 445 is installed on both sides of the column 110 and connects the pair of first beams 130 to each other in a direction perpendicular to the first beam 130. The second H-shaped steel material 445 is located farther from the column 110 than the first H-shaped steel material 444. A small beam 160 is connected to the first beam 130 at a position facing the second H-shaped steel material 445.

As shown in FIG. 16, the second H-shaped steel material 445 may be installed on the upper side of the first beam 130. Specifically, the second H-shaped steel material 445 is connected to the first beam 130 by the connecting member 136.

The concrete c2 is poured into the space surrounded by the pair of first beams 130 and the second H-shaped steel material 445. A reinforcing bar (not shown in the drawing) may be installed in the space.

Concrete c2 is poured with slab concrete sc or poured before slab concrete sc.

In the case where the concrete c2 is installed together with the slab concrete (sc), the main body portion 441 can secure sufficient strength against the construction load or transmit the normal moment. If not, (E. G., ≪ / RTI > for example). In contrast, when the slab concrete (sc) is laid after the concrete (c2) is first laid to secure the required strength or more at the time of construction, the rigidity of the column 110 and the column connecting portion 443 is secured. sc) supporting the piling load.

On the other hand, reinforcing bars 476 may be installed on the slab concrete sc.

As described above, the first H-shaped steel material 444 is bonded to the lower side surface of the first beam 130 and the second H-shaped steel material 445 is coupled to the upper side surface of the first beam 130, One end of a deck plate (not shown) connecting the 2 H-shaped steels 444 and 445 is fixed to the upper flange of the first H-shaped steel member 444 and the other end is connected to the second H- 445, the deck plate can be installed horizontally. In this case, the lower surface of the column connecting portion 443 is formed stepwise.

Meanwhile, the deck plate may be inclined. FIG. 17 shows that the deck plate (not shown) is installed so as to be inclined and concrete c2 is laid thereon.

In order to adjust the inclination angle of the deck plate, one end of the deck plate is provided on one of the upper and lower flanges of the first H-shaped steel material 444, and the other end of the deck plate is made of the second H- 445, and the lower flange.

Further, a deformed reinforcing bar, a stirrup, a lattice reinforcing bar 472 and the like may be provided in the space between the first H-shaped steel member 444 and the main body portion 441.

Description of connecting unit

FIG. 18 is a perspective view showing a structure in which a small beam and a first beam are connected by a connecting unit, and FIG. 19 is an exploded perspective view of FIG.

Referring to the drawings, the connection structure is achieved by using connection units 500, 500a, web bolting, and upper plate 570. [ That is, the lower flange 165 of the small beam 160 is coupled to the web 133 of the first beam 130 by the connecting unit 500, 500a, and the web 163 of the small beam 160 And the upper flange 161 of the small beam 160 is joined by the upper plate 570. The upper flange 161 of the small beam 160 is coupled to the lower flat plate 570 by the web bolting with the connecting flat plate 137.

The connecting units 500 and 500a are installed on the lower flange 165 of the small beam 160 to couple the lower flange 165 to the web 133 of the main steel beam 130. [ The coupling by the connecting unit 500 (500a) can be interpreted as conveying the compressive force generated in the cross section.

The connection units 500 and 500a control deflection of the beam when the upper plate 570 is installed at the time of construction. And, after the slab concrete is cured, the composite behavior reduces vibration and deflection. In addition, the connection units 500 and 500a serve to reinforce the bending strength of the step portion.

The connecting units 500 and 500a are installed on both sides of the web 163 of the small beam 160. The connecting units 500 and 500a may have the same shape, They may have different shapes to be combined efficiently. 21A shows a coupling unit 500 coupled to one side of the web 163 and FIG. 21B shows a coupling unit 500a coupled to the other side of the web 163. FIG. The connecting unit 500 and the connecting unit 500a have the same basic structure except that the side facing the web 163 is perpendicular to the end plate 540 and the side opposite to the web 163 is the end plate 540).

The connection units 500 and 500a are connected to the ends of the upper plate 510 and the lower plate 520, the spacer plate 530 disposed between the upper plate 510 and the lower plate 520 and the upper and lower plates 510 and 520 And an end plate 540 and a support member 550 for supporting the end plate 540 and the upper plate 510 and / or the lower plate 520.

A first bolt hole 512 is formed in the upper plate 510 at predetermined intervals along the longitudinal direction of the connection unit 500 and 500a and a lower bolt hole 512 is formed in the lower plate 520 at a position corresponding to the first bolt hole 512 A second bolt hole 522 is formed. In the figure, three first and second bolt holes 512 and 522 are shown, but the number of the first and second bolt holes 512 and 522 may be increased or decreased in consideration of the lengths of the upper and lower plates 510 and 520. The first and second bolt holes 512 and 522 may be elongated holes formed in the longitudinal direction of the small beam 160.

The upper plate 510 and the lower plate 520 are separated by a spacer plate 530 and a lower flange 165 is inserted into the spaced apart spaces. The bolts are installed through the bolt hole 166 and the first and second bolt holes 512 and 522 in a state where the lower flange 165 is inserted between the upper and lower plates 510 and 520, (500) and (500a) are coupled to the auxiliary steel beam 160. At this time, since the spacing plate 530 has a length shorter than the upper and lower plates 510 and 520, it does not interfere with the bolt fastening.

The end plate 540 is coupled to the upper and lower plates 510 and 520 and the end of the spacer plate 530 so as to be perpendicular to the upper and lower plates 510 and 520. A third bolt hole 542 is formed in the end plate 540. The third bolt hole 542 is preferably formed on both sides of the support member 550. The connecting unit 500 or 500a is coupled to the web 133 by mounting a bolt on the third bolt hole 542 in a state where the end plate 540 is arranged to be in contact with the web 133. [

The support member 550 is installed so as to be in contact with the end plate 540 and the upper plate 510 to support the end plate 540 and the upper plate 510 at right angles. Although the supporting member 550 is provided on the upper plate 510 in the figure, when the end plate 540 is further extended downward than in the drawing, the supporting member 550 is installed on the lower plate 520, And may be installed in all of the lower plates 510 and 520 to support the end plate 540.

When the small beams 160 are respectively coupled to both sides of the main steel bar 130, as shown in FIG. 20, the connecting units 100 and 100a are positioned on both sides of the web 33 so as to correspond to each other The end plates 540 of the two connection units 500 and 500a are bolted together. A web plate 548 may be provided between the end plate 540 and the web 133 to reduce the installation error. With this connection structure, the compressive force acting on the small beam 160 can be transmitted to the small beam 160 on the opposite side.

When connecting the small beam 160 to the first beam 130 in order to construct the steel structure, the connection structure connects the small beam 160 to the first beam 130 by semi-rigid joining or steel joining, Cracks and vibrations during use can be reduced, and thus the amount of steel used can be reduced, and the construction is simple and easy.

100, 200, 300, 400: wide composite structure
110, 210, 310: Column 130:
140, 240, 340, 440: second beam 141, 241, 341, 441:
143, 243, 343, 443: column connecting portion 160: small beam
500: connecting unit

Claims (12)

Pillar;
A pair of first beams 130 spaced apart from each other by a predetermined distance s1 in parallel with each other; And
And second beams 140, 240, 340, and 440 vertically coupled to the first beam 130,
The second beams 140, 240, 340, and 440,
Column connecting portions 143, 243, 343, and 443 for reinforcing a portion connected to the column; And
341 and 441 consisting of one beam and continuous in the column connecting portions 143, 243, 343 and 443,
The column connection portions 143, 243, 343 and 443 may include two or more beams or may be formed of a beam having a larger balance than the main portions 141, 241, 341 and 441, The upper flange of the body portion 141, 241, 341, 441, or the upper flange of the body portion 141, 241, 341, 441 is thicker or thicker than the lower flange. The reinforcing steel material 346 is reinforced at the lower portion, the tensile reinforcing steel is reinforced at the upper portion,
Wherein the first beam 130 is coupled to the column connection portions 143, 243, 343, and 441, and the first beam 130 is positioned outside the column. The method according to claim 1,
The column is the PC column 110,
The column connecting portion 143,
A pair of first H-shaped steels 144 spaced at a predetermined interval s2 in parallel with each other and provided in the longitudinal direction of the column connecting portion 143;
And a pair of second H-shaped members 144 disposed in a direction perpendicular to the first H-shaped steel member 144 and spaced from each other at a predetermined interval s3 in parallel to each other, A steel material 145; And
And a third H-shaped steel member (146) joined to both longitudinal ends of the first H-shaped steel member (144) and joined in a direction perpendicular to the first H-shaped steel member (144)
The third H-shaped steel material 146 is located outside the PC column 110. The first H-shaped steel material 146 is joined to the longitudinal end of the third H-shaped steel material 146, The main body 141 is coupled to the outer side surface of the main body 141,
The predetermined interval s2 and s3 are intervals in which a pair of the first H-shaped steel member 144 and the second H-shaped steel member 145 can be placed on the upper surface of the PC column 110, . 3. The method of claim 2,
A cruciform stiffener 114 is provided in the space sp formed by the pair of first H-shaped members 144 and the pair of second H-shaped members 145,
The cross-shaped stiffener 114 connects the pair of first H-shaped steels 144 to each other and connects the pair of second H-shaped steels 145 to each other,
And a concrete is installed in the space (sp) to form a column. The method according to claim 1,
The column is the SRC column 210,
The SRC column 210,
A vertically installed main steel frame 211;
A first connecting steel material 212 installed on both sides of the main steel frame 211;
A second connecting steel material 213 installed on the other two sides of the main steel frame 211; And
And a concrete (c) formed to surround the main steel frame 211,
The first connecting steel material 212 is installed in the longitudinal direction of the column connecting portion 243 and the second connecting steel material 213 is installed in a direction perpendicular to the first connecting steel material 212,
The column connecting portion 243,
A pair of first H-shaped steels 244 spaced apart from each other at a predetermined interval s4; And
And a second H-shaped steel material (245) joined to both ends of the first H-shaped steel material (244) in a direction perpendicular to the first H-shaped steel material (244)
The side of the first H-shaped steel material 244 is joined to the end of the second connecting steel 213,
The first beam 130 is coupled to one longitudinal end of the second H-shaped steel member 245 and the side surface of the main body 241 is coupled to the other end of the second H-
And the end of the body portion (241) is coupled to the first connecting steel (212). 5. The method of claim 4,
The length of the first H-shaped steel material 244 is longer than the interval s4,
And the inner side surface of the first H-shaped steel material (244) is in contact with the concrete surface of the SRC column (210). 6. The method of claim 5,
And the concrete surrounded by the first and second H-shaped members 244 and 245 is filled with the concrete c1. The method according to claim 1,
The column is one of a CFT column, a steel column, and an RC column reinforced with an iron plate,
A body portion 341 is coupled to both opposite sides of the column,
The column connecting portion 343,
A first H-shaped steel member 344 coupled to both side surfaces of the main body portion 341 in a direction perpendicular to the longitudinal direction of the main body portion 341; And
A first H-shaped steel material 344 and a triangular reinforcing rib 345 coupled to the upper and lower flanges of the main body 341,
The first beam 130 is coupled to the longitudinal end of the first H-shaped steel material 344,
Wherein a reinforcing steel material (346) is provided on the lower flange of the main body (341) from both sides of the column to a predetermined section, or a tensile steel bar is placed on the upper side between the first beams (130). The method according to claim 1,
The end of the main body 441 is coupled to the column 110 and the end of the first beam 130 is coupled to the side of the main body 441,
The column connecting portion 443,
A first H-shaped steel member 444 installed on both sides of the pillar 110 and provided to connect a pair of first beams 130 in a direction perpendicular to the first beam 130; And
The first H-shaped steel member 444 and the second H-shaped steel member 444 are installed on both sides of the column 110 to connect the pair of first beams 130 in a direction perpendicular to the first beam 130, And a second H-shaped steel material (445) located further away from the second H-shaped steel material (110). 9. The method of claim 8,
And the concrete (c2) is filled in the space surrounded by the first beam (130) and the second H-shaped steel (445). 10. The method of claim 9,
The first H-shaped steel material 444 is joined to the upper side surface of the first beam 130, the second H-shaped steel material 445 is coupled to the lower side surface of the first beam 130,
The concrete c2 between the first and second H-shaped members 444 and 445 is formed such that the lower surface thereof is inclined or stepped so as to connect the first and second H-shaped members 444 and 445. [ Composite structure. The method according to any one of claims 8 to 10,
The main body portion 441 and the main body portion 441 are spaced apart from each other in the column 110 or when the reinforcing bars of the column and the main body portion 441 are not interfered with each other, Respectively,
And a pillar reinforcement is laid in the spaced apart space. 11. The method according to any one of claims 1 to 10,
Small beams 160 are installed on both sides or one side of the first beam 130,
The small beam 160 is coupled to the first beam 130 by the connection units 500 and 500a,
The connection unit 500 (500a)
An upper plate 510 having a predetermined number of first bolt holes 512 formed therein;
A lower plate 520 having a second bolt hole 522 formed at a position corresponding to the first bolt hole 512;
A spacer plate 530 installed between the upper plate 510 and the lower plate 520 to maintain a gap between the upper and lower plates 510 and 520;
An end plate 540 coupled to an end of the upper and lower plates 510 and 520 so as to be perpendicular to the upper and lower plates 510 and 520 and formed with a third bolt hole 542; And
A support member 550 provided on at least one of the upper plate 510 and the lower plate 520 to support the end plate 540 such that the upper and lower plates 510 and 520 are perpendicular to the end plate 540; Including,
A lower flange 165 of the small beam 160 is inserted between the upper and lower plates 510 and 520 and a bolt passing through the first and second bolt holes 512 and 522 and the lower flange 165 is installed The small beam 160 is connected to the connection unit,
Wherein a bolt for fastening the end plate (540) to the web (133) of the first beam (130) is provided in the third bolt hole (542).

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