CN102635177A - Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof - Google Patents

Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof Download PDF

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Publication number
CN102635177A
CN102635177A CN2012101283225A CN201210128322A CN102635177A CN 102635177 A CN102635177 A CN 102635177A CN 2012101283225 A CN2012101283225 A CN 2012101283225A CN 201210128322 A CN201210128322 A CN 201210128322A CN 102635177 A CN102635177 A CN 102635177A
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CN
China
Prior art keywords
shear
steel
dark
shaped
support steel
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Application number
CN2012101283225A
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Chinese (zh)
Inventor
聂建国
李一昕
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清华大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 清华大学 filed Critical 清华大学
Priority to CN2012101283225A priority Critical patent/CN102635177A/en
Publication of CN102635177A publication Critical patent/CN102635177A/en

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Abstract

The invention relates to an un-bonded concealed bracing type shear wall for a reinforced concrete frame and belongs to the technical field of structural engineering. The un-bonded concealed bracing type shear wall provided by the invention comprises a boundary beam, a boundary column and a shearing force wallboard which are fixedly connected together. The shearing force wallboard comprises a concealed bracing steel structure and reinforcing meshes distributed at the both sides of the concealed bracing steel structure; the shearing force wallboard is formed by the concealed bracing steel structure and the reinforcing meshes by casting concrete; and the both ends of the concealed bracing steel are fixedly connected with a framework. The un-bonded concealed bracing type shear wall is characterized in that an un-bonded layer is arranged at a non-anchoring position of the concealed bracing steel structure. The un-bonded concealed bracing type shear wall provided by the invention can be used for effectively improving the ductility defect and the problem of poor integrality of the concrete shear wall. Meanwhile, the problems that concrete is ripped by concealed bracing and the concealed bracing is not insufficiently anchored at an end part can be prevented, so that the entire system has better ductility and integrality and has the advantages of simple structure, convenience for construction and better economic properties.

Description

A kind of nothing bond dark bearing bar concrete frame shear wall and job practices thereof
Technical field
The present invention relates to a kind of novel dark bearing bar combined concrete shear wall; Development is come out on the dark bearing bar concrete shear force wall of traditional shaped steel basis; Being particularly related to a kind of strong anchoring does not have the dark supporting type steel concrete compound shear wall of bonding, belongs to technical field of structural engineering.
Background technology
The shock resistance of building has become the structural key problem that receives much concern in recent years.Reinforced concrete shear wall is a kind of traditional building structure aseismatic member, is applicable in shear wall structure, frame shear wall structure, the framework-multiple structure typess such as core barrel structure.Shear wall can be born most of geological process owing to have bigger anti-side rigidity.But the ductility of shear wall is relatively poor, and is in case cracking will produce very big rigidity reduction effect, bigger for the whole steadiness influence of structure.Existing employing is secretly supported the improvement scheme and is adopted the dark support of reinforcing bar or " shaped steel-reinforcing bar " dark supporting form; Though around steel plate supports, be provided with the constraint of concrete core bundle; Prevented that steel plate is prone to produce the appearance of the outer flexing destabilization problems in plane, but because steel plate and the compound action of confined concrete is stronger on every side, when steel plate is drawn; The confined concrete easy of crack is bigger for the resistance to overturning influence of shear wall; On the other hand, the anchoring that secretly is supported on the end is not enough, possibly cause the local failure of end.
Summary of the invention
The objective of the invention is to the problem that exists in the prior art, propose a kind of nothing bond dark bearing bar concrete frame shear wall and job practices thereof.The present invention can optimize the structure design of dark support shear wall guaranteeing that shear wall preferably in ductility index and the comprehensive anti-seismic performance, solves the problem of confined concrete crack in tension, improves the durability of shear wall.
Technical scheme of the present invention is following:
Of the present invention a kind of do not have the bonding dark bearing bar concrete group frame shear wall comprise side bar 1, side column 5 and the shear wall slab that is fixed together; Described shear wall slab comprises dark support steel structure and the steel mesh reinforcement that is distributed in dark support steel structure both sides, and both form shear wall slab through concreting; The two ends and the framework of dark support steel structure are affixed; It is characterized in that non-anchoring place of described dark support steel structure is provided with no adhesive linkage 13.
No adhesive linkage 13 of the present invention is provided with plastic sheeting or plastic foam for non-anchoring place at dark support steel structure.
Dark support steel structure of the present invention is the bearing diagonal 12 that steel plate, i shaped steel or H shaped steel constitute, and its two ends are welded with shear connector 4, and bearing diagonal places framework inner respectively in two ends about in the of 12, and affixed through concreting and framework.
Bearing diagonal of the present invention be shaped as X-shaped, herringbone or splayed.
A kind of job practices of not having the dark bearing bar concrete group frame shear wall of bonding of the present invention is characterized in that this method may further comprise the steps:
A. dark support steel structure is completed, locate the welding shearing connector in the anchorage zone, and increase adhesive-less layer on surface, non-anchorage zone;
B. the reinforcing bar of colligation side column and side bar is with dark support steel structure installation in position, at its both sides assembling reinforcement net;
C. prop up temporary formwork, concreting.
Bond dark bearing bar concrete frame shear wall and job practices thereof of nothing of the present invention has following advantage:
Improve the not enough and bad problem of globality of concrete shear force wall ductility effectively; Avoid secretly supporting the drawing crack concrete simultaneously and secretly be supported on the not enough problem of end anchorage, make whole system have better ductility and globality, simple structure; Easy construction, economic performance is more excellent.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an A-A sectional drawing among Fig. 1;
Fig. 3 is a B-B sectional drawing among Fig. 1;
Fig. 4 is a C-C sectional drawing among Fig. 1;
Fig. 5-the 7th, the bearing diagonal sketch map that adopts H shaped steel to constitute among the present invention;
Among the figure: the 1-side bar; 2-beam longitudinal reinforcement; The 3-beam stirrup; The 4-shear connector; The 5-side column; The 6-post is indulged muscle; The 7-rectangle hoop; 8-octagon stirrup; The 9-shear wall slab; The vertical distribution reinforcement of 10-wallboard; 11-wallboard transversely distributed steelbar; The 12-bearing diagonal; The 13-adhesive-less layer; The 14-wallboard sockets reinforcing bar.
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present invention, work progress are further described.
A kind of nothing of the present invention dark bearing bar concrete frame shear wall that bonds is like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4.This frame-shear wall comprises, the framework and the shear wall slab 9 of the side bar 1 that is fixed together, side column 5, vertical muscle 2, rectangle hoop 3, octagon stirrup.Described framework, side bar 1 is the square-section, arrangement of reinforcement is the vertical muscle 2 of every limit disposed at equal distance, arranges rectangle hoop 3 across a certain distance along the vertical muscle of beam, is evenly distributed to beam-ends.Side column 5 is the square-section, and arrangement of reinforcement is the vertical muscle 6 of every limit disposed at equal distance, arranges rectangle hoop 7 and octagon stirrup 8 across a certain distance along the vertical muscle of beam, is evenly distributed to styletable.Shear wall slab 9 comprises dark support steel structure, two steel mesh reinforcements, and both form shear wall slab through concreting; The two ends and the framework of dark support steel structure are fixed together; Two steel mesh reinforcements are for arranging transversely distributed steelbar 11 and vertical distribution reinforcement 10 along laterally reaching vertically to be evenly distributed; And the fixing formation of colligation in the crosspoint; Be positioned at dark support steel structure both sides; In the side bar 1 that the distribution reinforcement up and down of steel mesh reinforcement inserts framework respectively and the side column 5, and guarantee certain anchorage length, between two steel mesh reinforcements, adopt to socket reinforcing bar 14 and socket.Above-mentioned technical characterictic is identical with prior art, below does not remake description.
Innovative point of the present invention mainly is the improvement to dark support steel structure, and particularly non-anchoring place at dark support steel structure is provided with no adhesive linkage 13, is used for isolating dark support steel structure and contacts with concrete.It is compared with the existing dark shear wall that supports, and can when guaranteeing that shear wall reaches preferably ductility index and comprehensive anti-seismic performance, solve the problem of confined concrete crack in tension, has optimized the structure design of dark support shear wall, improves the durability of shear wall.
The no adhesive linkage 13 that non-anchoring place of above-mentioned dark support steel structure is provided with can be the no adhesive linkage that the mode of thin plastic foam of covered with plastic film, parcel or stenciling coating forms.
Above-mentioned dark support steel structure is the bearing diagonal 12 that steel plate, i shaped steel or H shaped steel (extremely shown in Figure 6 like Fig. 5) constitute; And at bearing diagonal upper/lower terminal welding shearing connector 4; Place framework inner (promptly; The bearing diagonal upper/lower terminal stretches into respectively in the upper and lower side bar 1), form anchoring through concreting and framework then.
Above-mentioned bearing diagonal 12 can be X-shaped (as shown in Figure 1) or herringbone, splayed, and is suitable equally for many groups of dark supporting forms of herringbone bearing diagonal, splayed bearing diagonal and rectangle wallboard, no longer illustrates and enumerates.
The nothing of the present invention dark bearing bar concrete frame shear wall that bonds, its job practices is following: in factory built-in dark support (steel plate or shaped steel) 12 is completed, and increase adhesive-less layer 13 on the surface, the welding shearing connector 4 in the anchorage zone.The reinforcing bar of first at the construction field (site) colligation side column 5 and side bar 1; With built-in dark support (steel plate or shaped steel) 12 at the scene behind the installation in position; Form steel mesh reinforcement at vertical distribution reinforcement 10 of its both sides colligation and transversely distributed steelbar 11; Fluid concrete, thus form strong anchoring as shown in the figure do not have the bonding built-in steel plate (shaped steel) secretly support shear wall.
The strong anchoring that the present invention adopted does not have the dark support combinations shear wall of bonding can effectively improve the not enough and bad problem of globality of concrete shear force wall ductility; Avoid secretly supporting the drawing crack concrete simultaneously and secretly be supported on the not enough problem of end anchorage; Make whole system have better ductility and globality; Simple structure, easy construction, economic performance is more excellent.

Claims (8)

1. one kind is not had the dark bearing bar concrete group frame shear wall of bonding; This frame-shear wall comprises side bar (1), side column (5) and the shear wall slab that is fixed together; Described shear wall slab comprises dark support steel structure and the steel mesh reinforcement that is distributed in dark support steel structure both sides, and both form shear wall slab through concreting; The two ends and the framework of dark support steel structure are affixed; It is characterized in that non-anchoring place of described dark support steel structure is provided with no adhesive linkage (13).
2. frame-shear wall according to claim 1 is characterized in that, described no adhesive linkage (13) is provided with plastic sheeting or plastic foam for non-anchoring place at dark support steel structure.
3. frame-shear wall according to claim 1 and 2; It is characterized in that; Described dark support steel structure is the bearing diagonal (12) that steel plate, i shaped steel or H shaped steel constitute; Its two ends are welded with shear connector (4), and bearing diagonal (12) two ends up and down places framework inner respectively, and affixed through concreting and framework.
4. frame-shear wall according to claim 3 is characterized in that, described bearing diagonal be shaped as X-shaped, herringbone or splayed.
One kind do not have the bonding dark bearing bar concrete group frame shear wall job practices, it is characterized in that this method may further comprise the steps:
A. dark support steel structure is completed, locate the welding shearing connector in the anchorage zone, and increase adhesive-less layer on surface, non-anchorage zone;
B. the reinforcing bar of colligation side column and side bar is with dark support steel structure installation in position, at its both sides assembling reinforcement net;
C. prop up temporary formwork, concreting.
6. job practices according to claim 5 is characterized in that, described no adhesive linkage is that non-anchoring place of dark support steel structure is provided with plastic sheeting or plastic foam.
7. job practices according to claim 5 is characterized in that, described dark support steel structure is the bearing diagonal that steel plate, i shaped steel or H shaped steel constitute.
8. job practices according to claim 7 is characterized in that, described bearing diagonal be shaped as X-shaped, herringbone or splayed.
CN2012101283225A 2012-04-27 2012-04-27 Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof CN102635177A (en)

Priority Applications (1)

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CN2012101283225A CN102635177A (en) 2012-04-27 2012-04-27 Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof

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Application Number Priority Date Filing Date Title
CN2012101283225A CN102635177A (en) 2012-04-27 2012-04-27 Un-bonded concealed bracing type shear wall for reinforced concrete frame and construction method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926485A (en) * 2012-11-07 2013-02-13 沈阳建筑大学 Support double-layer steel plate buckling resisting energy dissipation wall
CN103758360A (en) * 2014-01-28 2014-04-30 河海大学 RC frame-internal infilled wall structure with profiled steel sheet support and reinforcing method
CN105220793A (en) * 2015-09-14 2016-01-06 济南轨道交通集团有限公司 Precast unit and the shear wall module with this component and preparation method thereof
CN106223461A (en) * 2016-08-30 2016-12-14 姚攀峰 A kind of hybrid industrialized building structural system and construction method thereof
CN106223515A (en) * 2016-08-30 2016-12-14 姚攀峰 A kind of prefabricated buckling-restrained steel plate strip reinforced concrete shear wall and preparation method thereof
CN106499212A (en) * 2016-11-30 2017-03-15 常州工学院 Profiled sheet shear wall and the attachment structure and its construction method of RC Vierendeel girders

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349794A (en) * 1992-03-27 1994-09-27 Shimizu Construction Co., Ltd. Wall for damping vibration
CN2816171Y (en) * 2004-12-17 2006-09-13 北京工业大学 Built-in section steel bar concrete composite concealed supprting shear wall
CN101012670A (en) * 2006-12-29 2007-08-08 北京工业大学 Shearing wall constrained and galvanized iron sheet enveloped no-binding energy dissipating steel support and method for making same
CN101126253A (en) * 2007-09-28 2008-02-20 清华大学 Partition block type sticking-free flection-proof steel plate shearing force wall
CN202706255U (en) * 2012-04-27 2013-01-30 清华大学 Non-binder concealed support reinforced concrete frame shear wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349794A (en) * 1992-03-27 1994-09-27 Shimizu Construction Co., Ltd. Wall for damping vibration
CN2816171Y (en) * 2004-12-17 2006-09-13 北京工业大学 Built-in section steel bar concrete composite concealed supprting shear wall
CN101012670A (en) * 2006-12-29 2007-08-08 北京工业大学 Shearing wall constrained and galvanized iron sheet enveloped no-binding energy dissipating steel support and method for making same
CN101126253A (en) * 2007-09-28 2008-02-20 清华大学 Partition block type sticking-free flection-proof steel plate shearing force wall
CN202706255U (en) * 2012-04-27 2013-01-30 清华大学 Non-binder concealed support reinforced concrete frame shear wall

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926485A (en) * 2012-11-07 2013-02-13 沈阳建筑大学 Support double-layer steel plate buckling resisting energy dissipation wall
CN103758360A (en) * 2014-01-28 2014-04-30 河海大学 RC frame-internal infilled wall structure with profiled steel sheet support and reinforcing method
CN103758360B (en) * 2014-01-28 2016-02-10 河海大学 There is RC framework-Nei infilled wall structure and the reinforcement means of profiled sheet support
CN105220793A (en) * 2015-09-14 2016-01-06 济南轨道交通集团有限公司 Precast unit and the shear wall module with this component and preparation method thereof
CN105220793B (en) * 2015-09-14 2017-12-15 济南轨道交通集团有限公司 Precast concrete and shear wall module and preparation method thereof with the component
CN106223461A (en) * 2016-08-30 2016-12-14 姚攀峰 A kind of hybrid industrialized building structural system and construction method thereof
CN106223515A (en) * 2016-08-30 2016-12-14 姚攀峰 A kind of prefabricated buckling-restrained steel plate strip reinforced concrete shear wall and preparation method thereof
CN106499212A (en) * 2016-11-30 2017-03-15 常州工学院 Profiled sheet shear wall and the attachment structure and its construction method of RC Vierendeel girders
CN106499212B (en) * 2016-11-30 2018-12-28 常州工学院 The connection structure and its construction method of profiled sheet shear wall and RC Vierendeel girder

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Application publication date: 20120815

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