1. The utility model provides a two-sided multilayer muscle coincide shear wall which characterized in that includes:

the first prefabricated panel and the second prefabricated panel are arranged in parallel at intervals, a first steel bar net piece is embedded in the first prefabricated panel, and a second steel bar net piece is embedded in the second prefabricated panel;

the middle layer steel bar net piece is arranged between the first prefabricated panel and the second prefabricated panel;

the first steel bar net piece and the middle layer steel bar net piece are connected through the steel bar truss, and the second steel bar net piece and the middle layer steel bar net piece are connected through the steel bar truss.

2. The double-sided multi-layer rebar laminated shear wall of claim 1, wherein one side of each layer of the rebar truss is fixedly bound to the first rebar mesh or the second rebar mesh.

3. The double-sided multi-layer reinforcement laminated shear wall of claim 1, wherein the other side of each steel bar truss is fixedly bound with the middle layer steel bar mesh.

4. The double-sided multi-layer rebar laminated shear wall of claim 1, wherein the middle layer rebar mesh is multi-layered.

5. The double-sided multi-layer rebar laminated shear wall of claim 4, wherein the multiple layers of middle layer rebar mesh are arranged between the first precast panel and the second precast panel at a preset interval.

6. The double-sided multi-layer rebar laminated shear wall of claim 4, wherein the middle layer of rebar mesh sheets are connected by a layer of rebar trusses.

7. The double-sided, multi-layer rebar laminated shear wall of claim 1, wherein each layer of the rebar truss is corrugated.

8. The double-sided, multi-layer rebar laminated shear wall of claim 1, wherein the middle layer rebar mesh is parallel to the first and second precast panels.

9. The double-sided multi-layer rebar laminated shear wall of claim 1, wherein the spacing distance between the middle layer rebar mesh sheets is no more than 350 mm; the spacing distance between the first reinforcing mesh and the middle reinforcing mesh is not more than 350 mm; the spacing distance between the second reinforcing mesh and the middle reinforcing mesh is not more than 350 mm.

10. A method for manufacturing a double-sided multi-layer rib laminated shear wall, which is characterized in that the double-sided multi-layer rib laminated shear wall according to any one of claims 1 to 10 is adopted, and the method comprises the following steps:

step S1, laying a first reinforcing mesh, and arranging a reinforcing truss on the first reinforcing mesh;

step S2, a first prefabricated panel is cast on the first reinforcing mesh sheet by a formwork support and maintained;

step S3, paving a middle layer steel bar mesh and a middle layer steel bar truss;

step S4, laying a second steel mesh, erecting a formwork on the second steel mesh, pouring a second prefabricated panel and maintaining;

step S5, before the concrete of the second panel is initially set, the first prefabricated panel is turned over so as to press the upper chord of the steel bar truss into the concrete of the second prefabricated panel to a preset height;

and step S6, after the factory processing of the double-sided multilayer rib superposed shear wall is finished, the double-sided multilayer rib superposed shear wall is transported to the site, and after the double-sided multilayer rib superposed shear wall is connected with other components on the site, concrete is poured into the inner cavity of the double-sided multilayer rib superposed shear wall.

Background

At present, the precast concrete shear wall is widely applied to engineering due to the characteristics of convenient construction, short construction period, economy, environmental protection and the like. The existing prefabricated double-sided superposed shear wall comprises an inner blade concrete slab, an outer blade concrete slab and a steel bar truss, and is suitable for the condition that the thickness of the shear wall is not more than 400 mm. When the thickness of the shear wall is large and the requirement on the bearing capacity is high, the shear wall in the form can not meet the requirements on the bearing capacity and the stability, so that the application of the existing precast concrete shear wall in a plurality of high-rise structures and the situation that the thickness of the wall body is large is limited. It is therefore desirable to create a new type of prefabricated shear wall structure that addresses the above problems by adding internal reinforcement.

Disclosure of Invention

The invention aims to provide a double-sided multilayer rib superposed shear wall and a manufacturing method thereof.

In order to solve the above problems, the present invention provides a double-sided multi-layer rib laminated shear wall, comprising:

the first prefabricated panel and the second prefabricated panel are arranged in parallel at intervals, a first steel bar net piece is embedded in the first prefabricated panel, and a second steel bar net piece is embedded in the second prefabricated panel;

the middle layer steel bar net piece is arranged between the first prefabricated panel and the second prefabricated panel;

the first steel bar net piece and the middle layer steel bar net piece are connected through the steel bar truss, and the second steel bar net piece and the middle layer steel bar net piece are connected through the steel bar truss.

Furthermore, in the double-sided multi-layer rib superposed shear wall, one side of each layer of steel bar truss is bound and fixed with the first steel bar net piece or the second steel bar net piece.

Furthermore, in the double-sided multi-layer rib superposed shear wall, the other side of each layer of steel bar truss is bound and fixed with the middle layer of steel bar net.

Furthermore, in the double-sided multilayer rib superposed shear wall, the middle layer of reinforcing mesh sheets are in multiple layers.

Furthermore, in the double-sided multilayer rib superposed shear wall, the multilayer middle layer reinforcing mesh sheets are arranged between the first prefabricated panel and the second prefabricated panel according to preset intervals.

Furthermore, in the double-sided multilayer rib superposed shear wall, the middle layer steel mesh sheets are connected through a layer of steel truss.

Furthermore, in the double-sided multi-layer rib superposed shear wall, each layer of the steel bar truss is corrugated.

Furthermore, in the double-sided multilayer rib superposed shear wall, the middle layer reinforcing mesh is parallel to the first prefabricated panel and the second prefabricated panel.

Furthermore, in the double-sided multilayer rib superposed shear wall, the spacing distance between the middle layer steel bar meshes is not more than 350 mm; the spacing distance between the first reinforcing mesh and the middle reinforcing mesh is not more than 350 mm; the spacing distance between the second reinforcing mesh and the middle reinforcing mesh is not more than 350 mm.

According to another aspect of the present invention, there is also provided a method for manufacturing a double-sided multi-layer rib laminated shear wall, where the method includes:

step S1, laying a first reinforcing mesh, and arranging a reinforcing truss on the first reinforcing mesh;

step S2, a first prefabricated panel is cast on the first reinforcing mesh sheet by a formwork support and maintained;

step S3, paving a middle layer steel bar mesh and a middle layer steel bar truss;

step S4, laying a second steel mesh, erecting a formwork on the second steel mesh, pouring a second prefabricated panel and maintaining;

step S5, before the concrete of the second panel is initially set, the first prefabricated panel is turned over so as to press the upper chord of the steel bar truss into the concrete of the second prefabricated panel to a preset height;

and step S6, after the factory processing of the double-sided multilayer rib superposed shear wall is finished, the double-sided multilayer rib superposed shear wall is transported to the site, and after the double-sided multilayer rib superposed shear wall is connected with other components on the site, concrete is poured into the inner cavity of the double-sided multilayer rib superposed shear wall.

Further, in the above-mentioned method,

compared with the prior art, the invention has the following characteristics:

1. the earthquake resistance is excellent: through the arrangement of the reinforcing mesh, the transverse restraint of the shear wall can be enhanced, the integrity of the structure is improved, the restraint effect on the prefabricated plates on the two sides is improved, the anti-seismic performance of the structure is improved, and the anti-seismic design target of 'prefabrication and equal cast-in-place' can be realized.

2. The structure system is light: compared with the method of adopting I-steel or other reinforcing modes, the prefabricated slab has the advantages that the steel bar mesh is adopted in the middle of the prefabricated slab, the weight is light, the structural performance is obviously improved, and the lightweight of a structural system can be realized.

3. The structural stress performance is improved: according to the method, the reinforcing steel meshes are arranged in the middle of the prefabricated shear wall, so that the reinforcing steel is reliably connected, the bearing capacity and the stability of the structure are improved, and the prefabricated shear wall has better stress performance.

4. Construction is convenient: according to the method, the reinforcing mesh is arranged in the middle of the prefabricated double-sided plate when the component is prefabricated, the construction is simple, the construction process is clear, the mechanical and batch production is facilitated, the construction period can be greatly shortened, and the construction efficiency is improved.

5. The method is environment-friendly: the operation of field workers is reduced, and the construction environment is friendly.

Drawings

Fig. 1 is a structural diagram of a double-sided multi-layer rib-laminated shear wall with three layers of steel mesh stacked according to an embodiment of the invention;

fig. 2 is a structural diagram of a double-sided multi-layer rib-laminated shear wall with four layers of steel mesh stacked according to an embodiment of the invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1 to 2, the present invention provides a double-sided multi-layer rib laminated shear wall, including:

the prefabricated panel comprises a first prefabricated panel 1 and a second prefabricated panel 2 which are arranged in parallel at intervals, wherein a first steel mesh 3 is embedded in the first prefabricated panel, and a second steel mesh 4 is embedded in the second prefabricated panel;

a first steel bar mesh and a second steel bar mesh are paved in the first prefabricated panel and the second prefabricated panel, and are poured through a prefabricated formwork;

the middle layer steel mesh 5 is arranged between the first prefabricated panel 1 and the second prefabricated panel 2;

the first steel bar net piece 3 is connected with the middle layer steel bar net piece 5 through the steel bar truss 6, and the second steel bar net piece 4 is connected with the middle layer steel bar net piece 5 through the steel bar truss 6.

The multilayer steel bar truss-multilayer steel bar mesh superposition system is arranged between the prefabricated panels, the steel bar meshes are arranged in parallel to the prefabricated panels, the steel bar trusses are arranged at intervals along the side length direction of the prefabricated first panel and the prefabricated second panel, and the distance between the steel bar meshes is the height of each layer of steel bar truss.

The invention comprises the following steps: the prefabricated panels are located on two sides of the shear wall, the multilayer steel bar trusses are used for connecting the first prefabricated panel and the second prefabricated panel, and the middle layer steel bar net piece is arranged in the middle of each layer of steel bar trusses. Subsequent cast in place concrete between the first and second precast panels. The invention relates to a method for arranging a plurality of layers of reinforcing mesh sheets in a prefabricated shear wall component to improve the stress performance of a structure, and is applied to the condition of larger thickness of a shear wall. The invention utilizes the multilayer reinforcing mesh to improve the bearing capacity, integrity and stability of the prefabricated shear wall, so that the prefabricated shear wall meets the standard requirements and can improve the construction efficiency, and the problems of small thickness and limited application range in high-rise structures of the existing prefabricated superposed shear wall are solved.

As shown in fig. 1 to 2, in an embodiment of the double-sided multi-layer rib superposed shear wall of the present invention, one side of each layer of the steel bar truss 6 is bound and fixed with the first steel bar mesh 3 or the second steel bar mesh 4.

As shown in fig. 1 to 2, in an embodiment of the double-sided multi-layer rib superposed shear wall of the present invention, the other side of each layer of the steel bar truss 6 is bound and fixed with the middle layer of the steel bar mesh 5.

The middle layer steel mesh is parallel to the first prefabricated panel and the second prefabricated panel and is bound and fixed with the steel bar truss.

As shown in fig. 2, in an embodiment of the double-sided multi-layer rib-laminated shear wall of the present invention, the middle layer of the mesh sheet 5 is multi-layered.

As shown in fig. 2, in an embodiment of the double-sided multi-layer rib-laminated shear wall of the present invention, multiple layers of middle layer reinforcing mesh sheets 5 are disposed between the first prefabricated panel and the second prefabricated panel at predetermined intervals.

Herein, the distance between the middle layer reinforcing mesh sheets is determined according to the actual distance of the panel and the specification requirement.

As shown in fig. 2, in an embodiment of the double-sided multi-layer rib-laminated shear wall of the present invention, the middle layer steel mesh sheets 5 are connected by a layer of steel bar truss 6.

As shown in fig. 1-2, in an embodiment of the double-sided multi-layer rib-laminated shear wall of the present invention, each layer of the steel bar trusses 6 is corrugated.

As shown in fig. 1 to 2, in an embodiment of the double-sided multi-layer rib-laminated shear wall of the present invention, the middle layer reinforcing mesh 5 is parallel to the first prefabricated panel 1 and the second prefabricated panel 2.

In one embodiment of the double-sided multi-layer rib superposed shear wall, the spacing distance between the reinforcing mesh sheets in the middle layer is not more than 350 mm.

In one embodiment of the double-sided multi-layer rib superposed shear wall, the spacing distance between the first reinforcing mesh and the middle layer reinforcing mesh is not more than 350mm, and the spacing distance between the second reinforcing mesh and the middle layer reinforcing mesh is not more than 350 mm.

The space between the steel bar meshes, namely the height of the steel bar truss, is determined according to the thickness of the shear wall, the space between the steel bar meshes is not more than 350mm, and when the thickness of the shear wall is more than 400mm, a two-layer or even multi-layer steel bar truss-middle layer steel bar mesh superposition system is required to be arranged.

In addition, two sides of the double-sided multilayer rib superposed shear wall are provided with embedded hanging rings for hoisting.

As shown in fig. 1 to 2, the present invention further provides another method for manufacturing a double-sided multi-layer rib superposed shear wall, where the double-sided multi-layer rib superposed shear wall according to any one of the embodiments is adopted, and the method includes:

step S1, laying a first reinforcing mesh, and arranging a reinforcing truss on the first reinforcing mesh;

step S2, a first prefabricated panel is cast on the first reinforcing mesh sheet by a formwork support and maintained;

step S3, paving a middle layer steel bar mesh and a middle layer steel bar truss;

step S4, laying a second steel mesh, erecting a formwork on the second steel mesh, pouring a second prefabricated panel and maintaining;

step S5, before the concrete of the second panel is initially set, the first prefabricated panel is turned over so as to press the upper chord of the steel bar truss into the concrete of the second prefabricated panel to a preset height;

and step S6, after the factory processing of the double-sided multilayer rib superposed shear wall is finished, the double-sided multilayer rib superposed shear wall is transported to the site, and after the double-sided multilayer rib superposed shear wall is connected with other components on the site, concrete is poured into the inner cavity of the double-sided multilayer rib superposed shear wall.

In summary, the present invention has the following features:

1. the earthquake resistance is excellent: through the arrangement of the reinforcing mesh, the transverse restraint of the shear wall can be enhanced, the integrity of the structure is improved, the restraint effect on the prefabricated plates on the two sides is improved, the anti-seismic performance of the structure is improved, and the anti-seismic design target of 'prefabrication and equal cast-in-place' can be realized.

2. The structure system is light: compared with the method of adopting I-steel or other reinforcing modes, the prefabricated slab has the advantages that the steel bar mesh is adopted in the middle of the prefabricated slab, the weight is light, the structural performance is obviously improved, and the lightweight of a structural system can be realized.

3. The structural stress performance is improved: according to the method, the reinforcing steel meshes are arranged in the middle of the prefabricated shear wall, so that the reinforcing steel is reliably connected, the bearing capacity and the stability of the structure are improved, and the prefabricated shear wall has better stress performance.

4. Construction is convenient: according to the method, the reinforcing mesh is arranged in the middle of the prefabricated double-sided plate when the component is prefabricated, the construction is simple, the construction process is clear, the mechanical and batch production is facilitated, the construction period can be greatly shortened, and the construction efficiency is improved.

5. The method is environment-friendly: the operation of field workers is reduced, and the construction environment is friendly.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.