CN103437458A - Precast concrete double-board shear wall with internal inclined braces and construction method for same - Google Patents

Precast concrete double-board shear wall with internal inclined braces and construction method for same Download PDF

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Publication number
CN103437458A
CN103437458A CN2013104018599A CN201310401859A CN103437458A CN 103437458 A CN103437458 A CN 103437458A CN 2013104018599 A CN2013104018599 A CN 2013104018599A CN 201310401859 A CN201310401859 A CN 201310401859A CN 103437458 A CN103437458 A CN 103437458A
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CN
China
Prior art keywords
oblique support
concrete
oblique
precast concrete
cast
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CN2013104018599A
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Chinese (zh)
Inventor
叶燕华
孙锐
薛洲海
宋妍
李士东
李炎
Original Assignee
南京工业大学
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Priority to CN2013104018599A priority Critical patent/CN103437458A/en
Publication of CN103437458A publication Critical patent/CN103437458A/en

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Abstract

The invention discloses a precast concrete double-board shear wall with internal inclined braces. The precast concrete double-board shear wall with the internal inclined braces comprises precast concrete wall sheets, cavities, truss steel bars, additional steel bar mesh sheets and the inclined braces, wherein horizontal steel bars and vertical steel bars are arranged in the precast concrete wall sheets; the precast concrete wall sheets are connected by the truss steel bars; the cavities are formed in the middles of the precast concrete wall sheets; the inclined braces are located in the cavities and is X-shaped; the inclined braces penetrate through the truss steel bars when encountering the truss steel bars; cast-in-place concrete is filled in the cavities; and the splicing sections of the double-board shear wall are provided with splicing joints, and the additional steel bar mesh sheets are additionally arranged at the splicing joints. According to the precast concrete double-board shear wall with the internal inclined braces, the bearing force, the ductility, energy consumption and other anti-seismic performances of a wall body are improved. The invention further provides a construction method for the precast concrete double-board shear wall with the internal inclined braces.

Description

The two plate shear walls of the precast concrete of built-in oblique support and job practices thereof
Technical field
The invention belongs to a kind of half prefabricated assembled shear wall, the method for built-in oblique support while being specifically related to the two plate shear walls of a kind of precast concrete and body of wall splicing thereof.
Background technology
Whole world building trade is just towards the industrialization future development, and the prefabricated costruction system is the only way of realizing industrialization of construction industry.The superimposed fabricated construction system industrialization degree of Germany's research and development is high, and ripe in the research eighties in last century, promoted the nineties rapidly, is introduced in recent years domestic.Germany is an earthquake country less, and this system is not considered shockproof requirements at the beginning of design, and China's earthquake takes place frequently, and shear wall is as a kind of widely used lateral resistant member, and its anti-seismic performance plays vital effect to the antidetonation of building structure.
Existing to the body of wall improvement project in, prefabricated pair of plate shear wall of monolithic generally adopted to the sleeper method of setting up; Place the reinforcing cage of a configuration stirrup and longitudinal reinforcement during the body of wall splicing at edge joint position; And between body of wall and levels structurally be connected the longitudinal reinforcement that relies on the sleeper position and the joint bar in body of wall thereof.Result of the test show that the anti-seismic performances such as bearing capacity, relative storey displacement, ductility and power consumption of the two plate shear walls of precast concrete are all lower than the ordinary concrete shear wall.In the higher area of seismic fortification intensity, the Safety Redundancy less of the two plate shear walls of precast concrete may cause because of the destruction of local body of wall the weakening of overall structure shock resistance when earthquake occurs.
Summary of the invention
The object of the invention is to improve the anti-seismic performances such as bearing capacity, ductility and power consumption of body of wall, a kind of two plate shear walls of precast concrete of built-in oblique support are provided.
Another object of the present invention is to provide a kind of job practices of the two plate shear walls of precast concrete of built-in oblique support.
The technical solution used in the present invention is: the two plate shear walls of a kind of precast concrete of built-in oblique support, comprise pre-cast concrete walling sheet, cavity, truss bars, additional bar net sheet and oblique support, be provided with horizontal reinforcement and vertical reinforcement in described pre-cast concrete walling sheet, the pre-cast concrete walling sheet is connected by truss bars, form cavity in the middle of the pre-cast concrete walling sheet, described oblique support is arranged in cavity, be X-shaped, when running into truss bars, oblique support through truss bars, is filled with cast-in-situ concrete in cavity;
The splice sections of described pair of plate shear wall is provided with splicing seams, and the splicing seams place is equipped with additional bar net sheet, and usually additional bar net sheet is put into cavity, finally cast-in-situ concrete in cavity after colligation or welding together with oblique support.
As preferably, described truss bars should be established as much as possible less in oblique supporting zone, gets 1~4 and is advisable.
As preferably, described splicing seams width is between 10mm~50mm.
As preferably, described oblique the be supported for oblique support of reinforcing bar, the oblique support of steel plate or the oblique support of shaped steel.The oblique support of the reinforcing bar of one of them direction is comprised of 2~6 oblique reinforcing bars that are arranged in parallel, and the oblique reinforcing bar of both direction intersects and is X-shaped.
As preferably, described oblique support is connected and can adopts colligation or welding with additional bar net sheet.
As preferably, described cast-in-situ concrete can be ordinary concrete, the self-compacting concrete of recommendation without vibration, and this is because the operational difficulty that vibrates is set after oblique support.
As preferably, described oblique support must be carried out suitable anchoring, and anchorage length meets existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations.The anchoring of described oblique support can be positioned at the two plate shear wall edge members of precast concrete, can be arranged in beam, also can be anchored in edge member and beam simultaneously.
The job practices of the two plate shear walls of the precast concrete of above-mentioned built-in oblique support comprises the following steps:
While in the monolithic body of wall, oblique support being set:
1) factory's inner machine equipment carries out horizontal reinforcement, vertical reinforcement blanking and is welded into the net sheet, produce suitable truss bars according to the body of wall height, treat that above-mentioned raw material are ready and carry out the production of pre-cast concrete walling sheet, be transported to on-site hoisting when maintenance reaches some strength;
2) oblique support is set, oblique support base can anchor in shear wall edge member or beam, and anchorage length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
3) if the shear wall edge member is on-the-spot cast-in-place, the reinforcing bar at colligation edge member and other position;
4) formwork;
5) concreting, adopt self-compact concrete;
6) form removal, maintenance;
When the body of wall splicing arranges oblique support:
1) factory's inner machine equipment carries out horizontal reinforcement, vertical reinforcement blanking and is welded into the net sheet, produce suitable truss bars according to the body of wall height, treat that above-mentioned raw material are ready and carry out the production of pre-cast concrete walling sheet, be transported to on-site hoisting when maintenance reaches some strength;
2) can carry out colligation or the welding of oblique support in plant produced pre-cast concrete walling sheet, oblique support usually and additional bar net sheet link together;
3) oblique support is together put into to the cavity of body of wall splicing place together with additional bar net sheet, splicing seams place additional bar net sheet and oblique bearing length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
4) the body of wall external bracing is set, body of wall off normal while preventing from building;
5) concreting, adopt self-compact concrete;
6) form removal, maintenance.
Beneficial effect of the present invention:
1, oblique support can effectively improve the antidetonation indexs such as bearing capacity, ductility and power consumption of the two plate shear walls of precast concrete;
2. when the two plate shear walls of precast concrete splice, adopt oblique support can effectively improve splicing place stress performance, increase the antidetonation indexs such as bearing capacity, ductility and power consumption;
3. oblique support can increase the areas of plasticity hinge of body of wall, can postpone the time of occurrence in crack, delays the development speed of crackle, and Crack prevention is too concentrated.
The accompanying drawing explanation
Fig. 1 is the two plate shear wall horizontal sectional views of precast concrete of the present invention.
Fig. 2 is the two plate shear wall elevation of monolithic precast concrete of the present invention.
Fig. 3 is the two plate shear wall splicing place profiles of two precast concretes of the present invention.
Fig. 4 is the two plate shear wall splicing place elevation of two precast concretes of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As Figure 1-4, the two plate shear walls of a kind of precast concrete of built-in oblique support, comprise pre-cast concrete walling sheet 1, cavity 3, truss bars 2, additional bar net sheet 6, splicing seams 8 and oblique support 7, be provided with horizontal reinforcement 4 and vertical reinforcement 5 in described pre-cast concrete walling sheet, pre-cast concrete walling sheet 1 is connected by truss bars 2, form cavity 3 in the middle of pre-cast concrete walling sheet 1, described oblique support 7 is arranged in cavity 3, be X-shaped, when running into truss bars 2, oblique support 7 through truss bars 2, in cavity 3, is filled with cast-in-situ concrete; The splice sections of described pair of plate shear wall is provided with splicing seams 8, and splicing seams 8 places are equipped with additional bar net sheet 6.
Described truss bars 2 is provided with 1~4 in oblique support 7 zones, and described splicing seams 8 width are between 10mm~50mm, and described oblique support 7 is the oblique support of reinforcing bar, the oblique support of steel plate or the oblique support of shaped steel.The oblique support of the reinforcing bar of one of them direction is comprised of 2~6 oblique reinforcing bars that are arranged in parallel, the oblique reinforcing bar of both direction intersects and is X-shaped, described oblique support 7 is connected and can adopts colligation or welding with additional bar net sheet 6, described cast-in-situ concrete is self-compacting concrete, described oblique support 7 must be carried out suitable anchoring, the anchoring of described oblique support 7 can be positioned at the two plate shear wall edge members of precast concrete, can be arranged in beam, also can be anchored in edge member and beam simultaneously.
The job practices of the two plate shear walls of the precast concrete of above-mentioned built-in oblique support comprises the following steps:
While in the monolithic body of wall, oblique support being set:
1) factory's inner machine equipment carries out horizontal reinforcement 4, vertical reinforcement 5 blankings and is welded into the net sheet, produce suitable truss bars 2 according to the body of wall height, treat that above-mentioned raw material are ready and carry out pre-cast concrete walling sheet 1 production, be transported to on-site hoisting when maintenance reaches some strength;
2) oblique support 7 is set, oblique support 7 bottoms can anchor in shear wall edge member or beam 9, and anchorage length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
3) if the shear wall edge member is on-the-spot cast-in-place, the reinforcing bar at colligation edge member and other position;
4) formwork;
5) concreting, add after oblique support 7 operational difficulty that vibrates, and suggestion adopts self-compact concrete;
6) form removal, maintenance.
When the body of wall splicing arranges oblique support:
1) factory's inner machine equipment carries out horizontal reinforcement 4, vertical reinforcement 5 blankings and is welded into the net sheet, produce suitable truss bars 2 according to the body of wall height, treat that above-mentioned raw material are ready and carry out pre-cast concrete walling sheet 1 production, be transported to on-site hoisting when maintenance reaches some strength;
2) can carry out colligation or the welding of oblique support 7 in plant produced pre-cast concrete walling sheet 1, oblique support 7 usually and additional bar net sheet 6 link together;
3) oblique support 7 is together put into to the cavity 3 of body of wall splicing place together with additional bar net sheet 6.Splicing seams place additional bar net sheet 6 and oblique bearing length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
4) the body of wall external bracing is set, body of wall off normal while preventing from building;
5) concreting, add after oblique support the operational difficulty that vibrates, and suggestion adopts self-compact concrete;
6) form removal, maintenance.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each ingredient all available prior art realized.

Claims (9)

1. two plate shear walls of the precast concrete of a built-in oblique support, it is characterized in that: comprise pre-cast concrete walling sheet, cavity, truss bars, additional bar net sheet and oblique support, be provided with horizontal reinforcement and vertical reinforcement in described pre-cast concrete walling sheet, the pre-cast concrete walling sheet is connected by truss bars, form cavity in the middle of the pre-cast concrete walling sheet, described oblique support is arranged in cavity, is X-shaped, when running into truss bars, oblique support through truss bars, is filled with cast-in-situ concrete in cavity; The splice sections of described pair of plate shear wall is provided with splicing seams, and the splicing seams place is equipped with additional bar net sheet.
2. two plate shear walls of the precast concrete of built-in oblique support according to claim 1, it is characterized in that: described truss bars arranges 1~4 in oblique supporting zone.
3. two plate shear walls of the precast concrete of built-in oblique support according to claim 1, it is characterized in that: described splicing seams width is between 10mm~50mm.
4. the two plate shear walls of the precast concrete of built-in oblique support according to claim 1, is characterized in that: described oblique the be supported for oblique support of reinforcing bar, the oblique support of steel plate or the oblique support of shaped steel.
5. two plate shear walls of the precast concrete of built-in oblique support according to claim 4, it is characterized in that: the described oblique oblique support of reinforcing bar that is supported for, the oblique support of the reinforcing bar of one of them direction is comprised of 2~6 oblique reinforcing bars that are arranged in parallel, and the oblique reinforcing bar of both direction intersects and is X-shaped.
6. two plate shear walls of the precast concrete of built-in oblique support according to claim 1, it is characterized in that: described oblique support is connected employing colligation or welding with additional bar net sheet.
7. two plate shear walls of the precast concrete of built-in oblique support according to claim 1, it is characterized in that: described cast-in-situ concrete is self-compacting concrete.
8. two plate shear walls of the precast concrete of built-in oblique support according to claim 1, it is characterized in that: the anchoring of described oblique support is positioned at the two plate shear wall edge members of precast concrete, or be arranged in beam, or be anchored in edge member and beam simultaneously.
9. the job practices of the two plate shear walls of the precast concrete of built-in oblique support according to claim 1 is characterized in that: comprise the following steps:
While in the monolithic body of wall, oblique support being set:
1) factory's inner machine equipment carries out horizontal reinforcement, vertical reinforcement blanking and is welded into the net sheet, produce suitable truss bars according to the body of wall height, treat that above-mentioned raw material are ready and carry out the production of pre-cast concrete walling sheet, be transported to on-site hoisting when maintenance reaches some strength;
2) oblique support is set, oblique support base can anchor in shear wall edge member or beam, and anchorage length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
3) if the shear wall edge member is on-the-spot cast-in-place, the reinforcing bar at colligation edge member and other position;
4) formwork;
5) concreting, adopt self-compact concrete;
6) form removal, maintenance;
When the body of wall splicing arranges oblique support:
1) factory's inner machine equipment carries out horizontal reinforcement, vertical reinforcement blanking and is welded into the net sheet, produce suitable truss bars according to the body of wall height, treat that above-mentioned raw material are ready and carry out the production of pre-cast concrete walling sheet, be transported to on-site hoisting when maintenance reaches some strength;
2) carry out colligation or the welding of oblique support in plant produced pre-cast concrete walling sheet, oblique support and additional bar net sheet link together;
3) oblique support is together put into to the cavity of body of wall splicing place together with additional bar net sheet, splicing seams place additional bar net sheet and oblique bearing length will meet existing " seismic design provision in building code " and " technical specification for concrete structures of high-rise building " relevant regulations;
4) the body of wall external bracing is set, body of wall off normal while preventing from building;
5) concreting, adopt self-compact concrete;
6) form removal, maintenance.
CN2013104018599A 2013-09-06 2013-09-06 Precast concrete double-board shear wall with internal inclined braces and construction method for same CN103437458A (en)

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CN103774764A (en) * 2014-01-28 2014-05-07 北京华美科博科技发展有限公司 Mesh fixing device and multilayer parallel steel wire net rack sandwich insulation board
CN103924710A (en) * 2014-04-25 2014-07-16 四川大学 Steel plate welding node structure of low-layer assembly type composite wall house
CN104153486A (en) * 2014-08-30 2014-11-19 刘家文 Precast concrete wall component and connecting method
CN104328847A (en) * 2014-10-24 2015-02-04 沈阳建筑大学 Inner inclined support assembled type concrete shear wall prefabricated part
CN104358331A (en) * 2014-12-04 2015-02-18 黑龙江宇辉新型建筑材料有限公司 Laminated slab type shear wall steel bar pin joint connecting component and connecting method
CN104612285A (en) * 2015-01-26 2015-05-13 济南轨道交通集团有限公司 Energy dissipation shear wall with built-in trusses and construction method of shear wall
CN104652632A (en) * 2015-01-30 2015-05-27 张家港海达防火节能材料有限公司 Sandwiched color-steel fireproof heat preserving plate
CN105839817A (en) * 2016-05-12 2016-08-10 浙江东南网架股份有限公司 Truss type multi-cavity steel plate shear wall and operation method thereof
CN105971113A (en) * 2016-07-06 2016-09-28 浙江东南网架股份有限公司 Composite structure building system of multi-cavity steel plate shear wall
CN106661881A (en) * 2015-02-09 2017-05-10 泰盈皮克姆株式会社 Safety-enhanced pc truss wall structure, and underground-structure construction method using same
CN106836588A (en) * 2017-03-05 2017-06-13 北京工业大学 A kind of prefabricated lightweight floor attachment means
CN109184033A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of fabricated shear wall Type Composite Structure System and installation method convenient for construction
CN109184029A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of fabricated shear wall Type Composite Structure System and installation method being easily installed
CN109184030A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of assembly concrete shear wall Type Composite Structure System and installation method
CN110439175A (en) * 2019-08-19 2019-11-12 苏道远 Ceramsite Concrete plate and its processing method with shear-resistant membrane shell structure

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CN103114669A (en) * 2013-03-13 2013-05-22 宝钢建筑系统集成有限公司 Ribbed steel bar truss concrete superimposed sheet and construction method thereof
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CN103114669A (en) * 2013-03-13 2013-05-22 宝钢建筑系统集成有限公司 Ribbed steel bar truss concrete superimposed sheet and construction method thereof
CN203440948U (en) * 2013-09-06 2014-02-19 南京工业大学 Precast concrete double-plate shear wall with built-in slant support

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CN103774764A (en) * 2014-01-28 2014-05-07 北京华美科博科技发展有限公司 Mesh fixing device and multilayer parallel steel wire net rack sandwich insulation board
CN103774764B (en) * 2014-01-28 2016-03-09 北京华美科博科技发展有限公司 Mesh sheet fastening devices and multilayer parallel wire net frames core heated board
CN103924710B (en) * 2014-04-25 2016-06-22 四川大学 Low layer assembled combined wall house Plate Welding node structure
CN103924710A (en) * 2014-04-25 2014-07-16 四川大学 Steel plate welding node structure of low-layer assembly type composite wall house
CN104153486A (en) * 2014-08-30 2014-11-19 刘家文 Precast concrete wall component and connecting method
CN104328847A (en) * 2014-10-24 2015-02-04 沈阳建筑大学 Inner inclined support assembled type concrete shear wall prefabricated part
CN104328847B (en) * 2014-10-24 2017-08-11 沈阳建筑大学 A kind of construction method of interior bearing diagonal assembly concrete shear wall prefabricated components
CN104358331A (en) * 2014-12-04 2015-02-18 黑龙江宇辉新型建筑材料有限公司 Laminated slab type shear wall steel bar pin joint connecting component and connecting method
CN104612285A (en) * 2015-01-26 2015-05-13 济南轨道交通集团有限公司 Energy dissipation shear wall with built-in trusses and construction method of shear wall
CN104652632A (en) * 2015-01-30 2015-05-27 张家港海达防火节能材料有限公司 Sandwiched color-steel fireproof heat preserving plate
CN106661881A (en) * 2015-02-09 2017-05-10 泰盈皮克姆株式会社 Safety-enhanced pc truss wall structure, and underground-structure construction method using same
CN105839817A (en) * 2016-05-12 2016-08-10 浙江东南网架股份有限公司 Truss type multi-cavity steel plate shear wall and operation method thereof
CN105839817B (en) * 2016-05-12 2018-05-04 浙江东南网架股份有限公司 A kind of truss-like Multicarity steel plate shear force wall and its operating method
CN105971113A (en) * 2016-07-06 2016-09-28 浙江东南网架股份有限公司 Composite structure building system of multi-cavity steel plate shear wall
CN106836588A (en) * 2017-03-05 2017-06-13 北京工业大学 A kind of prefabricated lightweight floor attachment means
CN109184033A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of fabricated shear wall Type Composite Structure System and installation method convenient for construction
CN109184029A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of fabricated shear wall Type Composite Structure System and installation method being easily installed
CN109184030A (en) * 2018-10-15 2019-01-11 中国建筑第七工程局有限公司 A kind of assembly concrete shear wall Type Composite Structure System and installation method
CN109184029B (en) * 2018-10-15 2020-06-26 中国建筑第七工程局有限公司 Assembled shear wall superimposed structure system convenient to mount and mounting method
CN109184033B (en) * 2018-10-15 2020-06-26 中国建筑第七工程局有限公司 Assembled shear wall superimposed structure system convenient to construct and installation method
CN110439175A (en) * 2019-08-19 2019-11-12 苏道远 Ceramsite Concrete plate and its processing method with shear-resistant membrane shell structure

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Application publication date: 20131211