KR101781260B1 - RC Coupling Beam Reinforcement Structure Using Multi-headed Steel Elements - Google Patents

RC Coupling Beam Reinforcement Structure Using Multi-headed Steel Elements Download PDF

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Publication number
KR101781260B1
KR101781260B1 KR1020150054068A KR20150054068A KR101781260B1 KR 101781260 B1 KR101781260 B1 KR 101781260B1 KR 1020150054068 A KR1020150054068 A KR 1020150054068A KR 20150054068 A KR20150054068 A KR 20150054068A KR 101781260 B1 KR101781260 B1 KR 101781260B1
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South Korea
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reinforcing bar
shear
diagonal
diagonal reinforcing
reinforcing bars
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KR1020150054068A
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Korean (ko)
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KR20160123688A (en
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한상환
김재환
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한양대학교 산학협력단
(주)에이엠에스 엔지니어링
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The present invention relates to a branching type fixed reinforcing bar provided with an enlarged head inside a shear wall and a connecting beam to load the shear force of the shear connection beam to improve the workability and to provide an effective enlarging head Type fixed shear reinforcement.
According to a preferred embodiment of the present invention, there is provided a front end connection rib reinforcement structure in which connection beams are transversely connected between parallel front end walls and installed inside each of the front end walls and the connection beam, wherein a central portion intersects the inside of the connection beam, A diagonal reinforcing bar embedded in the front end wall of the frame; A diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, And a fixing member which is respectively embedded in the front end walls of both sides.

Figure 112015037349152-pat00001

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a parallel shear wall connection reinforcing steel structure using a branch type fixed-

The present invention relates to a parallel shear wall connection beam reinforcement structure using a branch type fixed reinforcing bar having an enlarged head, and more particularly, to a shear reinforcement structure having a shear reinforcement with an enlarged head formed inside a shear wall and a connecting beam, To a parallel shear wall connection beam strengthening structure using a branching type fixed reinforcing bar having an enlarged head capable of improving the workability and effectively performing shear reinforcement even at a short fixing length.

Generally, the core of a building, especially the wall structure, is separated by an opening, and the shear walls act as coupled shear walls connected by slabs or ribs. These walls are connected by a short, These beams are called coupling beams or coupling beams. The coupling action of these connecting beams creates a structural system that can resist very effectively lateral loads such as wind and earthquakes. This resistance is due to axial and shear forces. Earthquakes, and must resist axial forces for lateral force transmission and high shear forces due to lateral displacement of the left and right parallel shear walls.

Conventionally, such an X-shaped diagonal bundle reinforcing bar is additionally reinforced in such a shear connection beam. Since such a diagonal reinforcing bar requires a very long fixing length, it is difficult to construct due to construction difficulty, .

As a background of the present invention, there is a patent registration No. 1456411 entitled "Steel assembly for connecting beam strengthening of parallel shear walls" (patent document 1). 6, a plurality of diagonal steel members (a plurality of diagonal steel members, for example, steel members) are disposed in parallel to each other, 20), a connecting member (10) in which each of the diagonal steel members (20) arranged on the same vertical plane is four-axially joined in an "X" shape, and a connecting member And a plurality of protruding members (30) penetratingly coupled at predetermined intervals along the longitudinal direction, wherein each of the diagonal steel members (20) is one of a hollow circular steel pipe, a square, a pentagonal or a hexagonal steel pipe, Wherein the projecting member (30) is composed of a long bolt (31) and a nut (32) penetrating and fastened along the width direction of each diagonal steel member (20) . " All.

However, although the background art somewhat solves the complexity of the construction with the details of the existing large-angle bundle reinforcing bars, it is difficult to construct a diagonal steel member having a certain thickness and to secure a separate shear force at the ends. It is difficult to construct due to a long fixing length, and in the case of a connection beam having a narrow width due to such a long fixing length, construction is impossible.

Patent Registration No. 1456411 "Steel assembly for connecting beam reinforcement of parallel shear walls"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for installing a diagonal fixing bar with an enlarged head inside a shear wall and a connecting beam, , It is possible to greatly reduce the fixing length and to reduce the interference between the reinforcing bars to improve the easiness of laying on the site and the workability and to improve the workability and economical efficiency by effectively performing the shearing reinforcement even in a short fixing length The present invention is directed to a parallel shear wall connection reinforced steel structure using a branch type fixed reinforcing bar formed with a steel plate.

The present invention relates to a front end wall connection beam reinforcement structure in which connection beams are transversely connected between parallel front end walls and is installed inside each of the front end walls and the connection beam, wherein a central portion intersects the inside of the connection beam and both ends are embedded in the front end walls of both sides A diagonal reinforcing bar arranged in an X-shape; A diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, a diagonal reinforcing bar, And a fusing member which is formed to be embedded in the front end walls of both sides, and which is provided with an enlarged head.

Also, it is intended to provide a parallel shear wall connection beam strengthening structure using a branching type fixing reinforcing bar formed with an enlarged head, wherein the branch reinforcing bars are formed by being branched in two directions of the upper and lower directions.

Also, it is intended to provide a parallel shear wall connection beam strengthening structure using a branching fixed reinforcing bar formed with an enlarged head, wherein the branch reinforcing bars are formed by being branched in four directions of up and down and left and right.

The enlarged head has a coupling hole penetrating in a longitudinal direction at a center portion thereof and penetrating through the coupling hole to connect the branching reinforcing bars to each other at certain positions of the branching reinforcing bars. Beam reinforcement structure.

The parallel shear wall connecting beam reinforcing steel structure using the branching type fixed reinforcing bar formed with the enlarging head of the present invention has a structure in which a shear force is applied to the shear connection beams by arranging a branching fixed reinforcing bar having an enlarged head inside a shear wall and a connecting beam, It is possible to greatly reduce the fixing length compared to the existing diagonal reinforcing bars and to reduce the interference between the reinforcing bars, thereby improving the easiness of laying on the site and improving the workability, and the shear reinforcement can be effectively applied even in a short fixing length, Can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention, Shall not be construed as limiting.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a parallel shear wall connection beam reinforcing steel structure using a branch type fixed reinforcing bar having an enlarged head of the present invention. FIG.
2 is a perspective view of a branch type fixed reinforcing bar formed with an enlarged head of the present invention.
FIG. 3 is a view showing another embodiment of FIG. 1. FIG.
FIG. 4 is a view showing another embodiment of FIG. 2. FIG.
5 is a view showing another embodiment of an enlargement head used in the present invention.
FIG. 6 is a view illustrating a conventional parallel shear wall connection beam strengthening structure and a parallel shear wall connection beam strengthening structure using a branch type fixed reinforcing bar formed with an enlarged head of the present invention.
7 is a perspective view showing a state where a steel assembly for connecting beam reinforcement of a conventional parallel shear wall is installed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

 Hereinafter, the technical structure of the present invention will be described in detail with reference to the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a parallel shear wall connection beam reinforcing steel structure using a branch type fixed reinforcing bar having an enlarged head of the present invention. FIG.

As shown in FIG. 1, the present invention is characterized in that a coupling beam 3 having a short length and a large dancing shape is provided between parallel shear walls 2 separated from each other by an opening and a parallel shear wall 2, And the shear force of the shear connection beams 3 is borne by placing the branch type fixed reinforcing bars 1 having enlarged heads inside the respective shear walls 2 and the connecting beams 3 to improve the workability So that effective shear reinforcement can be achieved even with a short fusing length.

The branch type fixed reinforcing bar 1 in which the enlarging head of the present invention is formed includes diagonal reinforcing bars 10 arranged in an X shape in the connecting beam 3 and fixing members 10 formed at the longitudinal ends of the diagonal reinforcing bars 10 20).

The diagonal reinforcing bars 10 are arranged in a diagonal direction such that the pair of reinforcing bars 10 cross each other inside the reinforcing bars of the connecting beams 3. The longitudinally opposite ends of the diagonal reinforcing bars 10 are arranged to be fixed to the front walls 2. It is preferable that the diagonal reinforcing bars 10 are bound or welded to the upper and lower cast iron rods by a binding line to stabilize the concrete by fixing the position of the diagonal reinforcing bars 10. [

The diagonal reinforcing bar 10 serves to reinforce the shear force by supplementing the reinforcing bar. The diagonal reinforcing bar 10 is provided with a fixing member 20, Can be greatly reduced.

The diagonal reinforcing bars 10 may be arranged at the central portion in the thickness direction of the connecting beam 3 or may be arranged at regular intervals in the thickness direction of the connecting beam 3 and the diagonal reinforcing bars 10 Can be installed in a suitable position in the required quantity and size according to the structure design.

The fixing member 20 is formed on both ends of the diagonal reinforcing bar 10 in the longitudinal direction of the diagonal reinforcing bar 10 such that the fixing member 20 is welded to the end of the diagonal reinforcing bar 10 when coupled with the diagonal reinforcing bar 10, It can be combined by various known methods.

FIG. 2 is a perspective view of a branch type fixed reinforcing bar formed with an enlarged head of the present invention, FIG. 3 is a view showing another embodiment of FIG. 1, and FIG. 4 is a view showing another embodiment of FIG.

2, the fixing member 20 includes a connecting portion 21 having a predetermined length to be connected to the diagonal reinforcing bar 10 at one end, a branching reinforcing bar 22 branched at the other end of the connecting portion 21, And a plurality of enlarging heads 23 are formed in the branch reinforcing bar 22. [

The connecting portion 21 is formed to easily connect the diagonal reinforcing bar 10 and the branch reinforcing bar 22 and the size of the cross section of the connecting portion 21 is made equal to the size of the cross section of the diagonal reinforcing bar 10 And the connecting portion 21 may be formed to have a predetermined length corresponding to the number and length of branches of the branching reinforcing bars 22. [

The diagonal reinforcing bars 22 are embedded in the parallel front end wall 2 and therefore the diagonal reinforcing bars 22 are formed at the other end of the connecting portion 21 depending on the thickness of the parallel front end wall 2 and the length of the diagonal reinforcing bars 10. [ So that the outer ends of the branched reinforcing ribs 22 are formed symmetrically with respect to the connecting portion 21 as a center.

The diverging reinforcing bar 22 branched from the connecting portion 21 is formed so as to be spread and embedded into the inside of the front end wall 2 at the longitudinal end portion of the diagonal reinforcing bar 10, So that the diagonal reinforcing bars 10 can be constructed as a full rope or the diagonal reinforcing bars can be made shorter in length, so that they can effectively cope with the shearing force.

3 and 4, the branching reinforcing bar 22 may be formed by being branched in two directions of the connecting part 21 around the connecting part 21 as shown in Figs. 1 and 2. As shown in Figs. 3 and 4, The branch reinforcing bars 22 may be formed so as to be branched in the four directions of the upper and lower and left and right directions of the connecting portion 21 and spread widely.

As shown in FIG. 1 and FIG. 2, in the case of diverging in the upper and lower directions, since the fixing length can be greatly reduced as compared with the conventional diagonal reinforcing bars, the mutual interference between the reinforcing bars can be reduced and effective shearing reinforcement can be achieved It is possible to improve workability and economical efficiency.

As shown in FIGS. 3 and 4, in the case of branching in four directions, the end portion is widened in the interior of the shear wall 2, and four branched reinforcing bars 22 are formed to divide the area corresponding to the shearing force It is possible to further reduce the length of the branch reinforcing bars 22 themselves, as compared with the case of branching in two directions.

The diverging reinforcement 22 thus formed can be formed at regular or irregular intervals in the longitudinal direction of the diaphragm 22 with an enlarged head 23 having a section larger than that of the section of the diaphragm 22, It is possible to constitute a plurality of two or more.

The enlarged head 23 may be formed to have the same cross-sectional shape as the cross-section of the branch reinforcing bars 22, or may be formed to have a square cross section or may have various cross-sections, Size should be larger.

The enlarged head 23 is formed on the outer circumferential surface of the branch reinforcing bar 22 so that the branch reinforcing bars 22 are fixed to the inside of the front end wall 2 and the area of the branch reinforcing bars 22 is enlarged So as to be able to resist the shear force effectively.

That is, since the branch reinforcing bar 22 is fixed to the inside of the front end wall 2 together with the enlarging head 23 so that the branching reinforcing bars 22 branched in various directions and the branching enlarging head 23 further restrain the concrete Thereby preventing shear destruction of concrete and exhibiting excellent deformation ability. The length of the branching reinforcing bar 22 is long and the enlarging head 23 having a small cross-sectional size is used. However, when the length of the enlarging head 23 is long, The length of the branch reinforcing bars 22 can be shortened and the enlarged head 23 having a large cross section can be used. When the distance between the enlarging heads 23 is short So that the diagonal reinforcing bar 10 and the fixing member 20 have a short length so that they correspond to the shearing force by the diverging reinforcing bar 22 and the enlarging head 23 even if the fixing length is short.

Therefore, in order to configure the enlarging head 23 in various sizes and positions in the branching reinforcing bar 22, the enlarging head 23 is formed separately from the branching reinforcing bar 22, (23) can be coupled to the required position of the diaphragm (22).

5 is a view showing another embodiment of an enlargement head used in the present invention.

5, the enlarging head 23 is provided with a coupling hole 231 in its longitudinal direction through a central portion thereof, penetrating the coupling hole 231, sandwiching the branch reinforcing bar 22 at a specific position And then fixed by a method such as welding of the branch reinforcing bar 22, as shown in Fig.

In this way, the enlarging head 23 can be provided separately from the diaphragm 22, so that the enlarging head 23 can be installed in a required number of positions, thereby making it easy to construct and install.

The connection member 21, the branch reinforcing bar 22 and the enlarging head 23 may be formed in various shapes such as a circular shape and a rectangular shape in cross section, and they may be integrally formed, And may be formed by joining by various methods such as welding.

FIG. 6 is a view illustrating a conventional parallel shear wall connection beam strengthening structure and a parallel shear wall connection beam strengthening structure using a branch type fixed reinforcing bar formed with an enlarged head of the present invention.

Conventionally, an X-shaped diagonal reinforcing bar 4 is disposed in the connecting beam 3 and reinforced. Such a diagonal reinforcing bar 4 requires a very long fixing length as shown in FIG. 6 (a) In some cases it was difficult or impossible to construct due to difficult construction.

On the other hand, as shown in Figs. 6 (b) and 6 (c), the branch type fixed reinforcing bar 1 having the enlarged head of the present invention is provided with the branch reinforcing bar 22 and the branch reinforcing bar 22 The magnifying head 23 can bear the shear force of the shear connection beams, thereby significantly reducing the fixing length as compared with the existing diagonal reinforcing bars.

The parallel shear wall connection beam reinforcing steel structure using the branch type fixed reinforcing bar formed with the enlarged head of the present invention as described above is constructed such that the shear force of the shear connection beams is borne by arranging the branch type fixed reinforcing bars having enlarged heads inside the shear walls and connecting beams It is possible to greatly reduce the fixing length compared to the existing diagonal reinforcing bars without using bundle reinforcing bars and to reduce interference between the reinforcing bars to improve the ease of laying and workability of the reinforcing bars, There is a very useful effect that can improve the workability and economical efficiency.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

1: Branch type fixing bar with enlarged head
2: Parallel shear wall
3: Connection beam
10: diagonal reinforcing bars
20: Fixing member
21: Connection
22:
23: Magnifying head
231: Coupling ball

Claims (4)

In the shear connection steel reinforcing structure in which the connecting beams 3 are transversely connected between the parallel shear walls 2 and are installed inside the shear walls 2 and the connecting beams 3,
A diagonal reinforcing bar 10 in which a central portion intersects the inside of the connecting beam 3 and both ends are embedded in the front end walls 2 on both sides and are arranged in an X shape;
A connecting portion 21 having a predetermined length to which one end is connected to the diagonal reinforcing bar 10 and a connecting portion 21 extending in the same direction as the diagonal reinforcing bar 10 in the four directions of up and down and left and right at the other end of the connecting portion 21, And an enlarged head 23 having a larger cross section than the cross section of the branch reinforcing bars 22. The shear reinforcement 22 is provided on both sides of the front end wall 2 And a fusing member (20) embedded in the fusing member (20). delete delete The method according to claim 1,
The enlarged head 23 is provided with a coupling hole 231 in the longitudinal direction at the center thereof and penetrates through the coupling hole 231 so as to engage the diaphragm 22 with the diaphragm 22 at certain positions Parallel Shear Wall Connected Beam Reinforcing Structure Using Split - type Fixed Reinforcing Bar with Expanded Head.
KR1020150054068A 2015-04-16 2015-04-16 RC Coupling Beam Reinforcement Structure Using Multi-headed Steel Elements KR101781260B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170511A (en) 2021-06-23 2022-12-30 한국건설기술연구원 Re-bar attachment reinforcing device and precast structure construction method using the same
KR20240015848A (en) 2022-07-28 2024-02-06 한국건설기술연구원 Contactless coupler, precast structure and precast structure construction method using the same

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Publication number Priority date Publication date Assignee Title
CN106639050A (en) * 2017-02-14 2017-05-10 华侨大学 Connecting structure between reinforced concrete shear walls and steel coupling beam
CN111576880B (en) * 2020-05-11 2021-09-03 武汉理工大学 Assembling construction method for connecting beam of windowing hole superposed shear wall
CN113882706A (en) * 2021-09-28 2022-01-04 福建省建研工程顾问有限公司 Method for anchoring newly-added cantilever beam of shear wall structure after bar planting

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KR100431835B1 (en) * 1999-12-23 2004-05-20 주식회사 포스코 Anchor for steel pier by using deformed bar
JP2009243092A (en) * 2008-03-31 2009-10-22 Kyoei Steel Ltd Anchorage part processing method of reinforcing bar and reinforcing bar with anchorage part
KR101381898B1 (en) * 2012-06-13 2014-04-04 (주)제이스코리아 Joint structure for steel and concrete
KR101428752B1 (en) * 2012-12-20 2014-08-08 한국토지주택공사 Rebar details in RC Coupling Beam

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Publication number Priority date Publication date Assignee Title
KR101456411B1 (en) 2014-02-27 2014-11-04 충남대학교산학협력단 Reinforcement Assembly For Coupling Beam Linked With Coupled Shear Wall

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Publication number Priority date Publication date Assignee Title
KR100431835B1 (en) * 1999-12-23 2004-05-20 주식회사 포스코 Anchor for steel pier by using deformed bar
JP2009243092A (en) * 2008-03-31 2009-10-22 Kyoei Steel Ltd Anchorage part processing method of reinforcing bar and reinforcing bar with anchorage part
KR101381898B1 (en) * 2012-06-13 2014-04-04 (주)제이스코리아 Joint structure for steel and concrete
KR101428752B1 (en) * 2012-12-20 2014-08-08 한국토지주택공사 Rebar details in RC Coupling Beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220170511A (en) 2021-06-23 2022-12-30 한국건설기술연구원 Re-bar attachment reinforcing device and precast structure construction method using the same
KR20240015848A (en) 2022-07-28 2024-02-06 한국건설기술연구원 Contactless coupler, precast structure and precast structure construction method using the same

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