CN107476470A - Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and its construction method - Google Patents

Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and its construction method Download PDF

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Publication number
CN107476470A
CN107476470A CN201710788522.6A CN201710788522A CN107476470A CN 107476470 A CN107476470 A CN 107476470A CN 201710788522 A CN201710788522 A CN 201710788522A CN 107476470 A CN107476470 A CN 107476470A
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CN
China
Prior art keywords
built
pipe
gfrp
steel pipe
wall
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Pending
Application number
CN201710788522.6A
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Chinese (zh)
Inventor
杨涛
王智
杨迪
陈万庆
谢元康
成琳洁
蒋铁军
黄宁武
廖志辉
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Guangxi University
China Railway Construction Group Southern Engineering Co Ltd
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Guangxi University
China Railway Construction Group Southern Engineering Co Ltd
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Application filed by Guangxi University, China Railway Construction Group Southern Engineering Co Ltd filed Critical Guangxi University
Priority to CN201710788522.6A priority Critical patent/CN107476470A/en
Publication of CN107476470A publication Critical patent/CN107476470A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal

Abstract

The invention discloses steel pipe built in a kind of assembled and GFRP pipe regeneration concrete compound shear walls, including steel bar stress, built-in pipe and the concrete for wrapping up their composition precast wall bodies, built-in pipe includes built-in steel pipe and built-in GFRP pipes, and concrete is regeneration concrete.The present invention replaces the part steel pipe being built in shear wall with GFRP pipes, the advantages of giving full play to good pipe deformation performance and GFRP pipe high-strength lights, with the bearing capacity of enhancing structure, can both mitigate the weight of prefabricated components again.Accordingly, inventor has also set up corresponding construction method.The prefabricated industrialization production and prefabricated construction of the regeneration concrete combined shear wall construction of built-in steel pipe and GFRP pipes can be achieved using the present invention, the recycling of caused a large amount of concrete waste materials in being realized while construction quality regulatory level is improved to factory for prefabrication's production process.

Description

Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and its construction Method
Technical field
The invention belongs to built-in shear wall framed with CFST columns technical field, more particularly to steel pipe built in a kind of assembled With GFRP pipe regeneration concrete compound shear walls and its construction method.
Background technology
Reinforced concrete shear wall be high-rise and super-high building structure in important primary structure member, mainly undertake it is vertical and Horizontal loading.In order to improve the stress performance of reinforced concrete shear wall, placing steel tubes just form built-in steel pipe in wall Concrete shear force wall.At present, the construction process of concrete-filled steel tubular column embedded shear-wall is mainly steel pipe positioning → reinforcing bar colligation → mould Plate installs → concreting → concrete curing.Although concrete-filled steel tubular column embedded shear-wall has high capacity, anti-seismic performance The advantages that good, but the problems such as live lifting steel pipes are complicated, shear force wall reinforcing steel bar colligation workload is big be present, this at the construction field (site) can The plenty of time is taken, while higher requirement is proposed to site condition and construction organization.
In recent years, China proposes the developing goal of prefabricated assembly structural industrialization, clearly proposes to arrive the year two thousand twenty structure master Body industrialization proportion in new building reach reach within 30%~50%, 2025 year 50%~70% target.Prefabrication and assembly construction Formula structure can realize prefabricated components industrialized production, have the advantages such as the fast, reliable in quality of speed of application.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of light high-strength, convenient for production, construction is simple, change easily and Steel pipe built in the assembled that achievable construction waste recycles and GFRP pipe regeneration concrete compound shear walls and its construction party Method.
In order to solve the above technical problems, the present invention uses following technical scheme:
Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls, including steel bar stress, built-in pipe and bag The concrete that they form precast wall body is wrapped up in, built-in pipe includes built-in steel pipe and built-in GFRP pipes, and concrete is regeneration concrete.
When precast wall body thickness is less than 500mm, precast wall body along short transverse according to 2 times of floor heights split it is prefabricated and The side of wall sets corbel or plate support;When precast wall body thickness is more than 500mm, precast wall body is along short transverse according to 1 times of floor height Split prefabricated.
Built-in outer wall of steel pipe lays Welded-Stud Conectors, and welding of peg sets GFRP shearing resistances in tube wall, built-in GFRP pipe outer walls Connector.
Built-in pipe is arranged in parallel along precast wall body width, steel pipe built in the arrangement of precast wall body width both ends, adjacent interior The center spacing for putting pipe is 2D-5D, and D is the external diameter of external diameter smaller in built-in steel pipe and built-in GFRP pipes.
Steel bar stress includes vertical reinforcement and horizontal distribution reinforcing bar, and vertical reinforcement and horizontal distribution bar spacing are not preferably greater than Steel tie is set between the reinforced mesh of 300mm, vertical reinforcement and horizontal distribution reinforcing bar composition, and steel tie distribution spacing is 100-200mm。
Built-in steel pipe, built-in GFRP pipes, vertical reinforcement, horizontal distribution reinforcing bar are stretched out outside precast wall body;Precast wall body is wide Spend both ends and U-shaped splicing groove is set along short transverse, be evenly arranged U-shaped tension rib in groove, the diameter of U-shaped steel tie is not less than 12mm and it is secondary enter wall in length meet that anchoring requires, the spacing of U-shaped steel tie not should be greater than between horizontal distribution reinforcing bar Away from.
Regeneration concrete concrete waste material as caused by production prefabricated components is process, and its intensity is not less than C40.
The construction method of steel pipe built in above-mentioned assembled and GFRP pipe regeneration concrete compound shear walls, is carried out as follows behaviour Make:
<1>In the horizontal direction, by steel pipe built in two panels assembled and GFRP pipe regeneration concrete combined shear wall members Horizontal distribution bar connecting, the U-shaped tension rib in the U-shaped splicing groove of adjacent two panels shear wall is interlaced, and in intersecting area Interior arrangement is no less than 2 vertical joint bars;
<2>In short transverse, steel pipe built in two panels assembled and GFRP pipe regeneration concrete combined shear wall members are entering When luggage is with construction, the built-in steel pipe in upper and lower two panels shear wall and built-in GFRP pipes are attached positioning first;On meanwhile Vertical reinforcement in lower two panels shear wall is reliably connected;When precast shear wall component is located at structure bottom, wall joint Vertical reinforcement and tubing reinforcing bar pre-buried with the basis of and tubing are reliably connected;
<3>When steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls are connected with newel post, wall is stretched out Horizontal distribution reinforcing bar be reliably connected with default horizontal steel tie in newel post;
<4>After steel pipe, bar connecting, supporting module is simultaneously at wall and wall, wall and newel post, wall and basic joints Casting concrete;
<5>Coagulation is poured inside the built-in tubing of steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls Soil.
Step<4>And step<5>In the strength grade of concrete that pours than prefabricated components used by regeneration concrete it is strong Spend the raising one-level of grade.
The problem of existing for existing concrete-filled steel tubular column embedded shear-wall, inventor's design are prepared for built in a kind of assembled Steel pipe and GFRP pipe regeneration concrete compound shear walls, including steel bar stress, built-in pipe and wrap up they form precast wall bodies Concrete, built-in pipe includes built-in steel pipe and built-in GFRP pipes, and concrete is regeneration concrete.The present invention will be built in shearing Part steel pipe in wall is replaced with GFRP pipes, the advantages of giving full play to good pipe deformation performance and GFRP pipe high-strength lights, both It with the bearing capacity of enhancing structure, can mitigate the weight of prefabricated components again.Accordingly, inventor has also set up corresponding construction Method:Shear wall is subjected to rational section partition first, then wall body construction is carried out in factory for prefabrication to be segmented prefabricated, profit With factory for prefabrication's caused a large amount of high-quality concrete waste material in process of production, concrete waste material is recycled simultaneously It is prepared into the preparation for shear wall body component after regeneration concrete;After shearing wall member reaches predetermined strength, by component Transport to job site carries out assembly, and the combination for ultimately forming built-in steel pipe and the GFRP pipe with good integral working is cut Power wall construction.The prefabricated industry of the regeneration concrete combined shear wall construction of built-in steel pipe and GFRP pipes can be achieved using the present invention Metaplasia is produced and prefabricated construction, is produced in being realized while construction quality regulatory level is improved to factory for prefabrication's production process A large amount of concrete waste materials recycling
Compared with prior art, the present invention has the advantage that:
(1) steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls can machine in workshop, body The advantage of industrialized building construction is showed, has reduced the program of live tubing lifting, reduced built-in steel tube shear structure and exist To the requirement of site condition in work progress, the complexity of construction organization is reduced, is advantageous to the construction quality of lift structure And efficiency.
(2) because factory for prefabrication can produce substantial amounts of concrete waste material, above-mentioned waste material is reclaimed and is prepared into again Growing concrete, the recycling of construction waste can be achieved, while good economic benefits are obtained, realize higher environmentally friendly valency Value.
(3) when shearing wall member by damaged or other damages, it is easy to the replacing of component to safeguard.
Brief description of the drawings
Fig. 1 is that steel pipe built in assembled and the combination of GFRP pipes regeneration concrete are cut when highly according to 1, high progress is prefabricated layer by layer Power wall construction schematic diagram.
Fig. 2 is the side view of shear wall in Fig. 1.
Fig. 3 is the top view of shear wall in Fig. 1.
Fig. 4 is shear wall A-A profiles in Fig. 1.
Fig. 5 is shear wall B-B profiles in Fig. 2.
Fig. 6 is that steel pipe built in assembled and the combination of GFRP pipes regeneration concrete are cut when highly according to 2, high progress is prefabricated layer by layer Power wall construction schematic diagram.
Fig. 7 is the side view of shear wall in Fig. 6.
Fig. 8 is the top view of shear wall in Fig. 6.
Fig. 9 is shear wall C-C profiles in Fig. 6.
Figure 10 is shear wall D-D profiles in Fig. 7.
Figure 11 is built-in steel pipe and GFRP pipe regeneration concrete combined shear wall member and newel post's connection diagram.
Figure 12 is E-E profiles in Figure 11.
Figure 13 is two adjacent built-in steel pipes and the installation signal of GFRP pipe regeneration concrete compound shear wall modular levels direction Figure.
Figure 14 is F-F profiles in Figure 13.
In figure:1 horizontal distribution reinforcing bar, 2 U-shaped tension ribs, GFRP built in 3 are managed, and steel pipe built in 4,5 vertical reinforcements, 6 is U-shaped Splice groove, the steel tie between 7 vertical reinforcements and the reinforced mesh of horizontal distribution reinforcing bar composition, 8 plate supports or corbel, 9 structures Basis, 10 pre-buried vertical reinforcements, 11 pre-buried tubing are pre-buried horizontal to tension rib, 13 vertical joint bars, 14 ends in 12 newel posts Post, 15 precast wall bodies.
Embodiment
The development of steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls
First, design principle
(1) steel pipe built in can effectively improve the vertical bearing capacity of reinforced concrete shear wall structure.
(2) GFRP pipes have the characteristics of high-strength light, can mitigate dead load;But because the shearing resistance of GFRP pipes carries Ability is relatively poor, can only substitute part steel pipe with GFRP pipes.
(3) prefabricated assembled shear wall can realize the industrialization of production and ensure wall construction quality;By constructing Scene is assembled, and substantially increases efficiency of construction.
(4) to factory for prefabrication, caused a large amount of concrete waste materials carry out recycling in process of production, are obtaining While good economic benefits, the higher value of environmental protection is obtained.
2nd, basic structure
Such as Fig. 1 to Figure 14, steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls, including steel bar stress, Built-in pipe and the concrete for wrapping up their composition precast wall bodies 15, built-in pipe include built-in steel pipe 4 and built-in GFRP pipes 3, mixed Solidifying soil is regeneration concrete.
Prefabricated assembled shear wall size is segmented according to engineering demand and customized, and its basic size should consider lifting, fortune The influence of the factors such as defeated and stress:Such as Fig. 1 to Fig. 5, when precast wall body thickness is less than 500mm, precast wall body is pressed along short transverse Plate support or corbel 8 should be set by split prefabricated and wall side according to 2 times of floor heights, preset pre- as needed on corbel or plate support Embedded part is used for the connection of wall and beam slab;Such as Fig. 6 to Figure 10, when precast wall body thickness is more than 500mm, precast wall body is along height side According to 1 times of floor height split to preferably prefabricated.
Before the lifting of steel pipe and GFRP pipes and interim positioning is carried out, built-in outer wall of steel pipe lays Welded-Stud Conectors, peg Arrangement and quantity should meet the requirement of current specifications, and welding of peg is reliable with concrete by Welded-Stud Conectors in tube wall Connect, be attached between built-in GFRP pipes by socket wrench specially adapted for it and binding agent, built-in GFRP pipe outer walls should set special GFRP shear connectors.Before wall installation positioning, non-casting concrete inside steel pipe and GFRP pipes in precast shear wall component.
Built-in pipe is arranged in parallel along precast wall body width, in order to ensure the deformability of wall, precast wall body width Both ends can only arrange built-in steel pipe, and the center spacing of adjacent built-in pipe is 2D-5D, and D is built-in steel pipe and built-in GFRP pipes China and foreign countries The external diameter of footpath smaller.
Steel bar stress includes vertical reinforcement 5 and horizontal distribution reinforcing bar 1, according to the difference of thickness of wall body, in wall Nei Kecai With double-deck or multilayer cloth muscle mode, the spacing of vertical reinforcement and horizontal distribution reinforcing bar is not preferably greater than 300mm, vertical reinforcement and water Steel tie 7 is set between the reinforced mesh of flat distribution bar composition, and steel tie distribution spacing is preferably 100-200mm.
Distinguish preset connection anchor measure on four sides of precast wall body:Built-in steel pipe, built-in GFRP pipes, vertical reinforcement, water Flat distribution bar all should it is secondary go out precast wall body outside, the length that built-in steel pipe and built-in GFRP pipes stretch out wall is not preferably less than 300mm; The length of reinforcing bar stretching precast wall body should meet the requirement of anchorage length of steel bar, and the machining shape of reinforcing bar and scale error should More than ± 10mm;Precast wall body width both ends set U-shaped splicing groove 6 along short transverse, and U-shaped tension rib 2, U is evenly arranged in groove The diameter of type steel tie not less than 12mm and it is secondary enter wall in length should meet anchoring require, the spacing of U-shaped steel tie The spacing of horizontal distribution reinforcing bar is not should be greater than.
Regeneration concrete concrete waste material as caused by production prefabricated components is process, its intensity not preferably less than C40.It is interior Put steel pipe and preferentially use Q345, Q390 and Q420 level;Vertical reinforcement and horizontal distribution reinforcing bar preferentially use HRB335 and HRB400 Level reinforcing bar.
3rd, construction method
<1>Such as Figure 13 to 14, in the horizontal direction, precast wall body is lifted to installation site, carries out Primary Location;By two panels The horizontal distribution bar connecting of steel pipe built in assembled and GFRP pipe regeneration concrete combined shear wall members (is connected using sleeve Connect, colligation connection or welding), the U-shaped tension rib in the U-shaped splicing groove of adjacent two panels shear wall should be interlaced, and intersecting Vertical joint bar 13 of the arrangement no less than 2 diameter 12mm in region;
<2>In short transverse, steel pipe built in two panels assembled and GFRP pipe regeneration concrete combined shear wall members are entering When luggage is with construction, the built-in steel pipe in upper and lower two panels shear wall and built-in GFRP pipes are attached positioning, steel pipe connecting first Bolt can be used or be welded to connect by connecing, and the connection of GFRP pipes can use socket wrench specially adapted for it to connect, and upper and lower two tubing center lines installation misses Difference should be controlled within ± 5mm;Meanwhile the vertical reinforcement in upper and lower two panels shear wall should be reliably connected (can use sleeve connection, Colligation connects or welding);When precast shear wall component is located at structure bottom, the vertical reinforcement and tubing of wall joint should be with Pre-buried vertical reinforcement 10 and pre-buried tubing 11 are reliably connected on architecture basics 9;
<3>Such as Figure 11 to Figure 12, when steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and newel post 14 During connection, stretching out the horizontal distribution reinforcing bar of wall should be reliably connected with level pre-buried in newel post to tension rib 12;Newel post can be with Using prefabricated components, site concrete can also be used;
<4>After steel pipe, bar connecting, the supporting module at the joints such as wall and wall, wall and newel post, wall and basis And casting concrete;Afterwards pouring concrete intensity should than precast shear wall component used by recycled concrete strength improve it is one strong Grade is spent, and used concrete there should be early epistasis;
<5>Coagulation is poured inside the built-in tubing of steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls Soil, strength grade of concrete should than prefabricated components used by recycled concrete strength grade improve one-level;Concreting is extremely At tubing top surface 300-500mm, and wharf's pavement quality should be carried out to concrete surface.
When shear wall component installation it is in place and after pouring concrete reach design strength after, in the default corbel of wall or plate The erection of the enterprising cross girders plate of support 8;For according to the prefabricated wall body construction of 1 times of layer height, beam slab can be carried out directly at the top of wall Erection construction.

Claims (9)

1. steel pipe built in a kind of assembled and GFRP pipe regeneration concrete compound shear walls, including steel bar stress, built-in pipe and Wrap up the concrete that they form precast wall body, it is characterised in that:The built-in pipe includes built-in steel pipe and built-in GFRP pipes, mixes Solidifying soil is regeneration concrete.
2. steel pipe built in assembled according to claim 1 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:When the precast wall body thickness is less than 500mm, precast wall body along short transverse according to 2 times of floor heights split it is prefabricated and The side of wall sets corbel or plate support;When the precast wall body thickness is more than 500mm, precast wall body is along short transverse according to 1 times Floor height split prefabricated.
3. steel pipe built in assembled according to claim 2 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:The built-in outer wall of steel pipe lays Welded-Stud Conectors, and welding of peg sets GFRP shearing resistances to connect in tube wall, built-in GFRP pipe outer walls Fitting.
4. steel pipe built in assembled according to claim 3 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:The built-in pipe is arranged in parallel along precast wall body width, steel pipe built in the arrangement of precast wall body width both ends, adjacent built-in The center spacing of pipe is 2D-5D, and D is the external diameter of external diameter smaller in built-in steel pipe and built-in GFRP pipes.
5. steel pipe built in assembled according to claim 4 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:The steel bar stress includes vertical reinforcement and horizontal distribution reinforcing bar, and the spacing of vertical reinforcement and horizontal distribution reinforcing bar should not be big In 300mm, steel tie should be set, between steel tie distribution between the reinforced mesh of vertical reinforcement and horizontal distribution reinforcing bar composition Away from for 100-200mm.
6. steel pipe built in assembled according to claim 5 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:The built-in steel pipe, built-in GFRP pipes, vertical reinforcement, horizontal distribution reinforcing bar are stretched out outside precast wall body;The precast wall body Width both ends set U-shaped splicing groove along short transverse, are evenly arranged U-shaped tension rib in groove, the diameter of U-shaped steel tie is not less than 12mm and it is secondary enter wall in length meet that anchoring requires, the spacing of U-shaped steel tie not should be greater than between horizontal distribution reinforcing bar Away from.
7. steel pipe built in assembled according to claim 6 and GFRP pipe regeneration concrete compound shear walls, its feature exist In:Regeneration concrete concrete waste material as caused by production prefabricated components is process, and its intensity is not less than C40.
8. the construction party of steel pipe built in assembled according to claim 7 and GFRP pipe regeneration concrete compound shear walls Method, it is characterised in that operation is carried out as follows:
<1>In the horizontal direction, by the level of steel pipe built in two panels assembled and GFRP pipe regeneration concrete combined shear wall members Distribution bar connects, and the U-shaped tension rib in the U-shaped splicing groove of adjacent two panels shear wall is interlaced, and the cloth in intersecting area Put and be no less than 2 vertical joint bars;
<2>In short transverse, steel pipe built in two panels assembled and GFRP pipe regeneration concrete combined shear wall members are entering luggage During with construction, the built-in steel pipe in upper and lower two panels shear wall and built-in GFRP pipes are attached positioning first;Meanwhile upper and lower two Vertical reinforcement in piece shear wall is reliably connected;When precast shear wall component is located at structure bottom, wall joint it is vertical Reinforcing bar and tubing reinforcing bar pre-buried with the basis of and tubing are reliably connected;
<3>When steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls are connected with newel post, the water of wall is stretched out Flat distribution bar is reliably connected with default level in newel post to steel tie;
<4>After steel pipe, bar connecting, supporting module and poured at wall and wall, wall and newel post, wall and basic joints Concrete;
<5>The casting concrete inside the built-in tubing of steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls.
9. the construction party of steel pipe built in assembled according to claim 8 and GFRP pipe regeneration concrete compound shear walls Method, it is characterised in that step<4>And step<5>In the strength grade of concrete that pours than prefabricated components used by regenerate coagulation Native strength grade improves one-level.
CN201710788522.6A 2017-09-05 2017-09-05 Steel pipe built in assembled and GFRP pipe regeneration concrete compound shear walls and its construction method Pending CN107476470A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108049533A (en) * 2017-12-19 2018-05-18 苏州市世好建材新技术工程有限公司 A kind of construction wall understructure
CN108560766A (en) * 2018-01-11 2018-09-21 三箭建设工程集团有限公司 It is a kind of bilayer steel construction build core wall
CN109779384A (en) * 2019-01-28 2019-05-21 游家良 Integral type concrete earthen wall
CN112982721A (en) * 2021-02-05 2021-06-18 方圆建设集团有限公司 Novel assembled hollow shear wall structure
CN113026996A (en) * 2021-03-24 2021-06-25 中建八局第四建设有限公司 Assembled steel bone shear wall structure
CN113356172A (en) * 2021-06-22 2021-09-07 广东省水利水电第三工程局有限公司 Construction structure and construction method for building ship lock empty box structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108049533A (en) * 2017-12-19 2018-05-18 苏州市世好建材新技术工程有限公司 A kind of construction wall understructure
CN108560766A (en) * 2018-01-11 2018-09-21 三箭建设工程集团有限公司 It is a kind of bilayer steel construction build core wall
CN109779384A (en) * 2019-01-28 2019-05-21 游家良 Integral type concrete earthen wall
CN112982721A (en) * 2021-02-05 2021-06-18 方圆建设集团有限公司 Novel assembled hollow shear wall structure
CN113026996A (en) * 2021-03-24 2021-06-25 中建八局第四建设有限公司 Assembled steel bone shear wall structure
CN113356172A (en) * 2021-06-22 2021-09-07 广东省水利水电第三工程局有限公司 Construction structure and construction method for building ship lock empty box structure
CN113356172B (en) * 2021-06-22 2021-11-26 广东省水利水电第三工程局有限公司 Construction structure and construction method for building ship lock empty box structure

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