CN102251607A - Reinforced concrete superposed wall node connecting structure and construction method - Google Patents

Reinforced concrete superposed wall node connecting structure and construction method Download PDF

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Publication number
CN102251607A
CN102251607A CN 201110113482 CN201110113482A CN102251607A CN 102251607 A CN102251607 A CN 102251607A CN 201110113482 CN201110113482 CN 201110113482 CN 201110113482 A CN201110113482 A CN 201110113482A CN 102251607 A CN102251607 A CN 102251607A
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China
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strata
reinforced concrete
floor
breach
enclosure
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CN 201110113482
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CN102251607B (en
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王滋军
刘伟庆
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南京工业大学
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Abstract

The invention provides a reinforced concrete superposed wall node connecting structure, which comprises an upper reinforced concrete superposed wall and a lower reinforced concrete superposed wall superposed up and down; the upper reinforced concrete superposed wall comprises an upper prefabricated reinforced concrete wall shell, an upper wall gap, an upper wall cavity, cast-in-place concrete and upper wall gap steel bars; the lower reinforced concrete superposed wall comprises a lower prefabricated reinforced concrete wall shell, cast-in-place concrete and embedded steel bars; and the upper reinforced concrete superposed wall and the lower reinforced concrete superposed wall form a whole through the upper wall gap steel bars, the embedded steel bars and the cast-in-place concrete. The node connecting structure can effectively solve the connection weakening problem between the upper and lower reinforced concrete superposed shear walls, and further enhances the integrity, the bearing capacity and the shockproof performance of reinforced concrete superposed wall nodes.

Description

Reinforced concrete sandwich body of wall node connecting structure and job practices

Technical field

The invention belongs to building structure field, relate to the buildings in general structure, be specifically related to be fit to the concrete structural system of suitability for industrialized production, particularly reinforced concrete sandwich body of wall node connecting structure and job practices.

Background technology

More than 400 hundred million square metres of China's existing building gross areas expect the year two thousand twenty and also will increase about 30,000,000,000 square metres of building area newly.Building not only takies a large amount of soils, and the direct energy that consumes accounts for 30% of whole society's total energy consumption in construction and use, and the energy consumption of the building materials of use accounts for 16.7%, and water accounts for 47% of urban water use, the steel that use account for 30% of national steel using amount, and cement accounts for 25%.China's building energy consumption height, reducing building energy consumption is developments economize.Adopt advanced mode of construction, carry forward vigorously batch production and produce various building prefabricated components, house module and job site assembling assembling, can effectively reduce building energy consumption.Therefore, the Chinese government is according to the requirement of novel residential building system, progressively set up dwelling house portion product authentication system, eliminate the backward portion product of energy-consuming consumptive material, popularization meets the dwelling house portion product of recycling economy development requirement, progressively establishes and improve the standardization dwelling house portion product system of exploitation, large-scale production, provision in set.Real estate and the relevant peace enterprise that builds, the also progressively requirement of active adaption housing industrialization on management organization and technical equipment means, " putting up a house " as making automobile as the development in future direction.

The existing prefabricated units of reinforced concrete sandwich shear wall structure system need not formwork, form removal, cycle is short, advantages such as on-the-spot work amount is little, the advantage that the Cast-in-situs type structural integrity is strong, anti-seismic performance is good is also arranged, it is a kind of structural shape of suitable suitability for industrialized production, have a good application prospect economic benefit and obvious social benefit.At present, in the upper and lower layer of reinforced concrete sandwich shear wall structure wall assembly process, the connected node between the upper and lower layer reinforced concrete sandwich shear wall is the weak link in this structural system.The conventional node connecting structure of tradition is by cast-in-situ concrete in embedded bar in lower floor's body of wall and the precast concrete wall enclosure upper and lower layer body of wall to be linked to be integral body, then only starch between the upper and lower layer prefabricated reinforced concrete shell and be connected by the seat of 40mm-50mm, experimental study shows, this locates to be weak link under horizontal loads, and the more common cast-in-place shear wall section area of this place's body of wall effective cross-sectional area reduces.

Summary of the invention

The objective of the invention is at the prior art above shortcomings, a kind of reinforced concrete sandwich body of wall node connecting structure is provided, this node connecting structure can effectively solve between the upper and lower layer reinforced concrete sandwich shear wall and connect the weakening problem, further globality, supporting capacity and the anti-seismic performance of reinforcing steel bar concrete folding body of wall node.

The present invention also provides a kind of job practices of reinforced concrete sandwich body of wall node connecting structure.

The present invention is achieved through the following technical solutions:

A kind of reinforced concrete sandwich body of wall node connecting structure comprises superimposed top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall up and down;

Described top reinforcement concrete folding body of wall comprises upper strata prefabricated reinforced concrete wall enclosure, upper strata body of wall breach, the body of wall surface layer, the upper strata wall cavity, cast-in-situ concrete, upper strata body of wall breach reinforcing bar and upper strata body of wall Steel bar rack, described upper strata prefabricated reinforced concrete wall enclosure is formed by connecting by upper strata body of wall Steel bar rack by two body of wall surface layers, form the upper strata wall cavity in the prefabricated reinforced concrete wall enclosure of upper strata, upper strata prefabricated reinforced concrete wall enclosure is provided with upper strata body of wall breach, upper strata body of wall indentation, there is provided with upper strata body of wall breach reinforcing bar, and the reinforcing bar in upper strata body of wall breach reinforcing bar and the upper strata prefabricated reinforced concrete wall enclosure is as a whole;

Described lower floor reinforced concrete sandwich body of wall comprises lower floor's prefabricated reinforced concrete wall enclosure, body of wall surface layer, lower floor's wall cavity, lower floor's body of wall Steel bar rack, cast-in-situ concrete and embedded bar, described lower floor prefabricated reinforced concrete wall enclosure is formed by connecting by lower floor's body of wall Steel bar rack by two body of wall surface layers, form lower floor's wall cavity in lower floor's prefabricated reinforced concrete wall enclosure, be provided with embedded bar in lower floor's wall cavity, embedded bar inserts the upper strata wall cavity, and embedded bar is connected with upper strata body of wall breach reinforcing bar;

Described upper strata wall cavity, upper strata body of wall breach and lower floor's cavity are filled with cast-in-situ concrete, and top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall form an integral body by upper strata body of wall breach reinforcing bar, embedded bar and cast-in-situ concrete.

As preferably, described upper strata body of wall breach can be arranged on the bottom of upper strata prefabricated reinforced concrete wall enclosure or top or top, the bottom all is provided with, and is preferably disposed on the bottom of upper strata prefabricated reinforced concrete wall enclosure.

As preferably, described upper strata body of wall breach reinforcing bar runs through whole upper strata body of wall breach.

As preferably, described upper strata body of wall breach reinforcing bar comprises horizontal reinforcement and vertical reinforcement.

A kind of job practices of above-mentioned reinforced concrete sandwich body of wall node connecting structure may further comprise the steps:

The first step: prefabricated lower floor prefabricated reinforced concrete wall enclosure and the upper strata prefabricated reinforced concrete wall enclosure that has upper strata body of wall breach, be provided with upper strata body of wall breach reinforcing bar in upper strata body of wall indentation, there, the reinforcing bar in upper strata body of wall breach reinforcing bar and the upper strata prefabricated reinforced concrete wall enclosure is as a whole;

Second step: in lower floor's wall cavity of lower floor's reinforced concrete sandwich body of wall embedded bar is set, builds cast-in-situ concrete to lower floor's wall cavity then, lower floor's reinforced concrete sandwich body of wall completes;

The 3rd step: top reinforcement concrete folding body of wall is positioned on lower floor's reinforced concrete sandwich body of wall, again upper strata body of wall breach reinforcing bar is connected with the embedded bar of lower floor reinforced concrete sandwich body of wall;

The 4th step: the body of wall indentation, there is carried out formwork on the upper strata of top reinforcement concrete folding body of wall, builds cast-in-situ concrete to upper strata body of wall breach and upper strata wall cavity then, treats that the cast-in-situ concrete maintenance finishes, and finishes the finish node syndeton.

Node connecting structure of the present invention is applicable to multistory reinforced concrete folding body of wall, top reinforcement concrete folding body of wall among the present invention is when top reinforcement concrete folding body of wall is connected again, also can use node connecting structure of the present invention, the top reinforcement concrete folding body of wall among the present invention's this moment can be taken as lower floor's reinforced concrete sandwich body of wall.

The invention has the beneficial effects as follows, compare with the reinforced concrete sandwich body of wall node that tradition is conventional, node connecting structure of the present invention is additionally increasing under the situation of construction cost hardly, just can make the reinforcing bar in the prefabricated reinforced concrete wall enclosure combine with cast-in-situ concrete at the node place, increase the effective area of node place wall section, eliminate the weak link in traditional regular node, give full play to the effect of prefabricated reinforced concrete wall enclosure, both improved the supporting capacity of the reinforced concrete sandwich body of wall that institute's assembly unit finishes, can improve the reinforced concrete sandwich integrality of wall that institute's assembly unit is finished again, anti-seismic performance etc., and convenient construction, be convenient to check the connection situation of node reinforcing bar, simultaneously when concreting, can also eliminate the hole that may exist in the cast-in-situ concrete of node junction, mass defects such as voids and pits guarantee the reliability that the reinforced concrete sandwich body of wall connects.

Description of drawings

Fig. 1 is the structural representation before top reinforcement concrete folding body of wall of the present invention is built;

Fig. 2 is the structural representation after lower floor of the present invention reinforced concrete sandwich body of wall is built;

Fig. 3 is the structural representation before top reinforcement concrete folding body of wall of the present invention and the lower floor's reinforced concrete sandwich body of wall location after-pouring.

Fig. 4 is the structural representation after reinforced concrete sandwich body of wall node connecting structure of the present invention is finished.

The specific embodiment

The present invention is further illustrated below in conjunction with the drawings and specific embodiments:

A kind of reinforced concrete sandwich body of wall node connecting structure comprises superimposed top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall up and down;

Described top reinforcement concrete folding body of wall comprises upper strata prefabricated reinforced concrete wall enclosure 9, upper strata body of wall breach 2, body of wall surface layer 1, upper strata wall cavity 4, cast-in-situ concrete 6, upper strata body of wall breach reinforcing bar 3 and upper strata body of wall Steel bar rack 5, described upper strata prefabricated reinforced concrete wall enclosure 9 is formed by connecting by upper strata body of wall Steel bar rack 5 by two body of wall surface layers 1, form upper strata wall cavity 4 in the upper strata prefabricated reinforced concrete wall enclosure 9, upper strata prefabricated reinforced concrete wall enclosure 9 is provided with upper strata body of wall breach 2, body of wall breach 2 places, upper strata are provided with upper strata body of wall breach reinforcing bar 3, and upper strata body of wall breach reinforcing bar 3 is as a whole with the reinforcing bar in the upper strata prefabricated reinforced concrete wall enclosure 9;

Described lower floor reinforced concrete sandwich body of wall comprises lower floor's prefabricated reinforced concrete wall enclosure 7, body of wall surface layer 1, lower floor's wall cavity, lower floor's body of wall Steel bar rack, cast-in-situ concrete 6 and embedded bar 8, described lower floor prefabricated reinforced concrete wall enclosure 7 is formed by connecting by lower floor's body of wall Steel bar rack by two body of wall surface layers 1, form lower floor's wall cavity in lower floor's prefabricated reinforced concrete wall enclosure 9, be provided with embedded bar 8 in lower floor's wall cavity, embedded bar 8 inserts upper strata wall cavity 4, and embedded bar 8 is connected with upper strata body of wall breach reinforcing bar 3;

Described upper strata wall cavity 4, upper strata body of wall breach 2 and lower floor's cavity are filled with cast-in-situ concrete 6, and top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall form an integral body by upper strata body of wall breach reinforcing bar 3, embedded bar 8 and cast-in-situ concrete 6.

Described upper strata body of wall breach 2 is arranged on the bottom of upper strata prefabricated reinforced concrete wall enclosure 9, and upper strata body of wall breach reinforcing bar 3 runs through whole upper strata body of wall breach 2, and upper strata body of wall breach reinforcing bar 3 comprises horizontal reinforcement and vertical reinforcement.

A kind of job practices of above-mentioned reinforced concrete sandwich body of wall node connecting structure may further comprise the steps:

The first step: prefabricated lower floor prefabricated reinforced concrete wall enclosure 7 and the upper strata prefabricated reinforced concrete wall enclosure 9 that has upper strata body of wall breach 2, be provided with upper strata body of wall breach reinforcing bar 3 at upper strata body of wall breach 2 places, upper strata body of wall breach reinforcing bar 3 is as a whole with the reinforcing bar in the upper strata prefabricated reinforced concrete wall enclosure 9;

Second step: in lower floor's wall cavity of lower floor's reinforced concrete sandwich body of wall embedded bar 8 is set, builds cast-in-situ concrete 6 to lower floor's wall cavity then, lower floor's reinforced concrete sandwich body of wall completes;

The 3rd step: top reinforcement concrete folding body of wall is positioned on lower floor's reinforced concrete sandwich body of wall, again upper strata body of wall breach reinforcing bar 3 is connected with the embedded bar 8 of lower floor reinforced concrete sandwich body of wall;

The 4th step: body of wall breach 2 places carry out formwork on the upper strata of top reinforcement concrete folding body of wall, build cast-in-situ concrete 6 to upper strata body of wall breach 2 and upper strata wall cavity 4 then, treat that cast-in-situ concrete 6 maintenances finish, and finish the finish node syndeton.

Claims (6)

1. a reinforced concrete sandwich body of wall node connecting structure is characterized in that: comprise superimposed top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall up and down;
Described top reinforcement concrete folding body of wall comprises upper strata prefabricated reinforced concrete wall enclosure, upper strata body of wall breach, the body of wall surface layer, the upper strata wall cavity, cast-in-situ concrete, upper strata body of wall breach reinforcing bar and upper strata body of wall Steel bar rack, described upper strata prefabricated reinforced concrete wall enclosure is formed by connecting by upper strata body of wall Steel bar rack by two body of wall surface layers, form the upper strata wall cavity in the prefabricated reinforced concrete wall enclosure of upper strata, upper strata prefabricated reinforced concrete wall enclosure is provided with upper strata body of wall breach, upper strata body of wall indentation, there is provided with upper strata body of wall breach reinforcing bar, and the reinforcing bar in upper strata body of wall breach reinforcing bar and the upper strata prefabricated reinforced concrete wall enclosure is as a whole;
Described lower floor reinforced concrete sandwich body of wall comprises lower floor's prefabricated reinforced concrete wall enclosure, body of wall surface layer, lower floor's wall cavity, lower floor's body of wall Steel bar rack, cast-in-situ concrete and embedded bar, described lower floor prefabricated reinforced concrete wall enclosure is formed by connecting by lower floor's body of wall Steel bar rack by two body of wall surface layers, form lower floor's wall cavity in lower floor's prefabricated reinforced concrete wall enclosure, be provided with embedded bar in lower floor's wall cavity, embedded bar inserts the upper strata wall cavity, and embedded bar is connected with upper strata body of wall breach reinforcing bar;
Described upper strata wall cavity, upper strata body of wall breach and lower floor's cavity are filled with cast-in-situ concrete, and top reinforcement concrete folding body of wall and lower floor's reinforced concrete sandwich body of wall form an integral body by upper strata body of wall breach reinforcing bar, embedded bar and cast-in-situ concrete.
2. reinforced concrete sandwich body of wall node connecting structure according to claim 1 is characterized in that: described upper strata body of wall breach is arranged on the bottom of upper strata prefabricated reinforced concrete wall enclosure or top or top, the bottom all is provided with.
3. reinforced concrete sandwich body of wall node connecting structure according to claim 2 is characterized in that: described upper strata body of wall breach is arranged on the bottom of upper strata prefabricated reinforced concrete wall enclosure.
4. reinforced concrete sandwich body of wall node connecting structure according to claim 1 is characterized in that: described upper strata body of wall breach reinforcing bar runs through whole upper strata body of wall breach.
5. reinforced concrete sandwich body of wall node connecting structure according to claim 1 is characterized in that: described upper strata body of wall breach reinforcing bar comprises horizontal reinforcement and vertical reinforcement.
6. the job practices of a reinforced concrete sandwich body of wall node connecting structure according to claim 1 may further comprise the steps:
The first step: prefabricated lower floor prefabricated reinforced concrete wall enclosure and the upper strata prefabricated reinforced concrete wall enclosure that has upper strata body of wall breach, be provided with upper strata body of wall breach reinforcing bar in upper strata body of wall indentation, there, the reinforcing bar in upper strata body of wall breach reinforcing bar and the upper strata prefabricated reinforced concrete wall enclosure is as a whole;
Second step: in lower floor's wall cavity of lower floor's reinforced concrete sandwich body of wall embedded bar is set, builds cast-in-situ concrete to lower floor's wall cavity then, lower floor's reinforced concrete sandwich body of wall completes;
The 3rd step: top reinforcement concrete folding body of wall is positioned on lower floor's reinforced concrete sandwich body of wall, again upper strata body of wall breach reinforcing bar is connected with the embedded bar of lower floor reinforced concrete sandwich body of wall;
The 4th step: the body of wall indentation, there is carried out formwork on the upper strata of top reinforcement concrete folding body of wall, builds cast-in-situ concrete to upper strata body of wall breach and upper strata wall cavity then, treats that the cast-in-situ concrete maintenance finishes, and finishes the finish node syndeton.
CN 201110113482 2011-05-04 2011-05-04 Reinforced concrete superposed wall node connecting structure and construction method CN102251607B (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425310A (en) * 2011-12-15 2012-04-25 中国二十二冶集团有限公司 Assembly-type residential shear wall structural wall body vertical connection construction method
CN102561585A (en) * 2012-03-06 2012-07-11 程松林 External wall slab of prefabricated cast-in-place composite concrete shear wall and manufacture and installation methods
CN102747796A (en) * 2012-07-12 2012-10-24 南京工业大学 Precast wall casing structure of reinforced concrete superposed shear wall and splicing method thereof
CN103174241A (en) * 2013-02-03 2013-06-26 株洲博尔曼科技发展有限公司 Prefabricated superimposition thermal insulating wall and construction method thereof
CN103510639A (en) * 2013-10-15 2014-01-15 合肥工业大学 Overlapped plate type shear wall with restorability and constructing method thereof
CN103628594A (en) * 2013-12-16 2014-03-12 长沙远大住宅工业有限公司 Cast-in-place shear wall structure equivalent to prefabricated sandwiched superposed shear wall continuous steel bar
CN103993685A (en) * 2014-05-29 2014-08-20 泰兴市第一建筑安装工程有限公司 Single-side formwork erecting thin-plastered concrete partition wall and construction process thereof
CN103993684A (en) * 2014-05-29 2014-08-20 泰兴市第一建筑安装工程有限公司 Thin concrete smearing partition wall
CN104631659A (en) * 2015-01-07 2015-05-20 湖南大学 Prefabricated assembling type composite plate type concrete double-connection shear wall with hidden supports
CN104878855A (en) * 2015-05-05 2015-09-02 合肥工业大学 Wallboard interlayer connection for use at bottom enhanced part of laminated shear wall structure
CN104878860A (en) * 2015-05-05 2015-09-02 合肥工业大学 Self-insulation superimposed slab concrete shear wall
CN105040816A (en) * 2015-08-27 2015-11-11 湖南大学 Prefabricated assembly type and hidden-support-equipped superposed plate type reinforced concrete core wall
CN105113667A (en) * 2015-09-15 2015-12-02 万保金 Prefabricated steel bar truss wall mould shell
CN105201107A (en) * 2015-09-30 2015-12-30 长沙远大住宅工业集团有限公司 Construction method for stacked plate type shear wall of underground garage
CN107268999A (en) * 2017-07-03 2017-10-20 广州容联建筑科技有限公司 A kind of construction method of reinforced concrete wall

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CN202081537U (en) * 2011-05-04 2011-12-21 南京工业大学 Node connecting structure of reinforced concrete superimposed wall bodies

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CN2307851Y (en) * 1997-04-29 1999-02-17 柳今奇 Assembly civil buliding wall
CN2466264Y (en) * 2000-10-20 2001-12-19 邹光洪 Combined prefabricated component for fabricated structure building
CN202081537U (en) * 2011-05-04 2011-12-21 南京工业大学 Node connecting structure of reinforced concrete superimposed wall bodies

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425310A (en) * 2011-12-15 2012-04-25 中国二十二冶集团有限公司 Assembly-type residential shear wall structural wall body vertical connection construction method
CN102425310B (en) * 2011-12-15 2014-02-19 中国二十二冶集团有限公司 Assembly-type residential shear wall structural wall body vertical connection construction method
CN102561585A (en) * 2012-03-06 2012-07-11 程松林 External wall slab of prefabricated cast-in-place composite concrete shear wall and manufacture and installation methods
CN102561585B (en) * 2012-03-06 2014-10-29 程松林 External wall slab of prefabricated cast-in-place composite concrete shear wall and manufacture and installation methods
CN102747796A (en) * 2012-07-12 2012-10-24 南京工业大学 Precast wall casing structure of reinforced concrete superposed shear wall and splicing method thereof
CN103174241A (en) * 2013-02-03 2013-06-26 株洲博尔曼科技发展有限公司 Prefabricated superimposition thermal insulating wall and construction method thereof
CN103510639A (en) * 2013-10-15 2014-01-15 合肥工业大学 Overlapped plate type shear wall with restorability and constructing method thereof
CN103510639B (en) * 2013-10-15 2016-03-23 合肥工业大学 A kind of can the overlaid plate type shear wall of restore funcitons and implementation method thereof
CN103628594A (en) * 2013-12-16 2014-03-12 长沙远大住宅工业有限公司 Cast-in-place shear wall structure equivalent to prefabricated sandwiched superposed shear wall continuous steel bar
CN103628594B (en) * 2013-12-16 2016-05-11 长沙远大住宅工业集团有限公司 Prefabricated sandwich overlapped shear wall continuity reinforcement(bar) is equal to cast-in-place shear wall structure
CN103993685A (en) * 2014-05-29 2014-08-20 泰兴市第一建筑安装工程有限公司 Single-side formwork erecting thin-plastered concrete partition wall and construction process thereof
CN103993684A (en) * 2014-05-29 2014-08-20 泰兴市第一建筑安装工程有限公司 Thin concrete smearing partition wall
CN103993685B (en) * 2014-05-29 2016-03-30 泰兴市第一建筑安装工程有限公司 Single surface formwork is thin smears concrete partition construction technology
CN104631659B (en) * 2015-01-07 2016-09-14 湖南大学 Prefabricated assembled band steel plate concealed bracings overlaid plate type concrete coupled shear wall
CN104631659A (en) * 2015-01-07 2015-05-20 湖南大学 Prefabricated assembling type composite plate type concrete double-connection shear wall with hidden supports
CN104878860A (en) * 2015-05-05 2015-09-02 合肥工业大学 Self-insulation superimposed slab concrete shear wall
CN104878855A (en) * 2015-05-05 2015-09-02 合肥工业大学 Wallboard interlayer connection for use at bottom enhanced part of laminated shear wall structure
CN105040816A (en) * 2015-08-27 2015-11-11 湖南大学 Prefabricated assembly type and hidden-support-equipped superposed plate type reinforced concrete core wall
CN105113667A (en) * 2015-09-15 2015-12-02 万保金 Prefabricated steel bar truss wall mould shell
CN105201107A (en) * 2015-09-30 2015-12-30 长沙远大住宅工业集团有限公司 Construction method for stacked plate type shear wall of underground garage
CN107268999A (en) * 2017-07-03 2017-10-20 广州容联建筑科技有限公司 A kind of construction method of reinforced concrete wall

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