Fabricated anti-seismic reinforced wall
The design of prefabricated seismic-resistant reinforced walls solves the problem of phased implementation of reinforcement and energy-saving renovation of existing residential buildings, realizes efficient integrated construction, and improves construction efficiency and seismic and thermal insulation performance.
Patent Information
- Application Number
- CN202520132719.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing technologies, the wall reinforcement and energy-saving renovation of existing residential buildings are carried out in two stages, resulting in low implementation efficiency.
The prefabricated seismic-resistant reinforced wall system consists of anchor rods, concrete layers, and prefabricated wall components. The prefabricated wall components are composed of insulation layers, support frames, distribution bars, steel mesh, and vertical connecting bars. They are prefabricated in the factory and installed on site, combined with concrete pouring, to achieve integrated construction.
It eliminates the need for additional support formwork and insulation construction, reduces construction procedures, improves construction efficiency and reduces costs, while enhancing the seismic performance and insulation effect of the wall.
Smart Images
Figure CN223824667U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building technical field especially relates to a kind of prefabricated anti-seismic reinforcing wall. BACKGROUND
[0002] Current housing stock quantity is large in our country, according to statistics, there are about 311 million sets of stock housing in the whole country urban area, of which about 120 million sets of housing built before 2000, accounting for 40%, stock housing scale is nearly 400 billion m 2 , average housing age has reached 40-50 years, and a large number of masonry structure houses, and most of the low seismic performance, there is security risk. With the growth of housing age, the proportion of old housing continues to increase, stock housing security risk increases year by year, and it is urgent to carry out seismic reinforcement of existing residential buildings. At the same time, current existing residential building reconstruction has entered the function, energy saving, green, low carbon and other comprehensive performance improvement stage from single structure reinforcement, a large number of residential buildings need to carry out energy saving reconstruction at the same time, and the demand of building external thermal insulation reconstruction is increasing year by year.
[0003] At present, a large number of existing masonry structure seismic reinforcement and energy saving reconstruction practices have been carried out in China, but the existing technology still has the problems that wall strengthening and fixing construction and energy saving reconstruction are generally implemented in two stages, and the implementation efficiency is low. UTILITY MODEL CONTENT
[0004] In view of the above analysis, the utility model aims to provide a prefabricated anti-seismic reinforcing wall to solve the problem that original wall reinforcement construction and energy saving reconstruction are implemented in two stages in the prior art, and the implementation efficiency is low.
[0005] The purpose of the utility model is mainly realized by the following technical scheme:
[0006] A prefabricated anti-seismic reinforcing wall is used for seismic reinforcement of the wall of existing house, comprising an anchoring rod, a concrete layer and a prefabricated wall assembly.
[0007] The prefabricated wall assembly comprises an insulation layer, a support framework, a distribution rib, a steel mesh and a vertical connecting steel bar, the insulation layer and the steel mesh are installed on both sides of the support framework; the distribution rib is arranged on the support framework and is fixedly connected with the support framework; one end of the vertical connecting steel bar is fixedly connected with the steel mesh, and the other end extends out of the insulation layer.
[0008] Further, a first concrete pouring cavity is formed between the steel mesh and the insulation layer.
[0009] Further, a second concrete pouring cavity is formed between the steel mesh and the wall of the existing house.
[0010] Further, the support framework comprises a first support furring strip, a second support furring strip and a tensioning rope.
[0011] Further, the first support keel and the second support keel are arranged in a cross shape and fixedly connected.
[0012] Further, the tensioning rope is fixed at both ends at the connection of the first support keel and the second support keel.
[0013] Further, the distribution steel bars include a first distribution steel bar and a second distribution steel bar, which are fixedly connected.
[0014] Further, the first distribution steel bar is fixedly connected with the second support keel, and the second distribution steel bar is fixedly connected with the first distribution steel bar.
[0015] Further, the prefabricated wall assembly further includes a horizontal connecting steel bar.
[0016] Further, one end of the vertical connecting steel bar is annular.
[0017] The technical scheme of the utility model can at least achieve the following effects:
[0018] (1) The utility model discloses an assembled anti-seismic reinforced wall body, which comprises an anchoring rod, a concrete layer and a prefabricated wall assembly, the prefabricated wall assembly comprises an insulation layer, a support framework, distribution steel bars, a steel sheet net and vertical connecting steel bars, the insulation layer and the steel sheet net are installed on the two sides of the support framework, the distribution steel bars are arranged on the support framework and fixedly connected with the support framework, one end of the vertical connecting steel bars is fixedly connected with the upper end of the steel sheet net, and the other end extends out of the insulation layer, which realizes the following effects: no additional supporting concrete pouring formwork and additional tie structure need to be arranged during construction, no formwork needs to be dismantled, no additional insulation construction is needed, construction procedures are reduced, construction and installation efficiency is improved, and cost is reduced.
[0019] (2) One end of the vertical connecting steel bars is annular in the utility model, so that the local extrusion effect on the concrete can be enhanced, the anchoring bearing capacity is increased, and the connection fastening degree between the two prefabricated wall assemblies after pouring the concrete is improved.
[0020] The above technical schemes can be combined with each other in the utility model to realize more preferred combination schemes. Other features and advantages of the utility model will be described in the subsequent specification, and some advantages can become apparent from the specification or can be understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained from the contents specially pointed out in the specification and the drawings. DRAWINGS
[0021] The accompanying drawings are for the purpose of illustrating preferred embodiments of the present application and are not to be construed as limiting the present application, wherein the same reference notations in different drawings represent the same elements.
[0022] The accompanying drawings are for the purpose of illustrating preferred embodiments of the present application and are not to be construed as limiting the present application, wherein the same reference notations in different drawings represent the same elements.
[0023] Figure 1 A structural schematic diagram of the prefabricated wall assembly in the embodiment of the present application;
[0024] Figure 2 A structural schematic diagram of the prefabricated wall assembly in the embodiment of the present application; Figure 1 A partial enlarged view of the middle A;
[0025] Figure 3 A structural schematic diagram of the prefabricated wall assembly in the embodiment of the present application;
[0026] Figure 4 A sectional view of the prefabricated wall assembly in the embodiment of the present application.
[0027] Reference signs:
[0028] 1, anchor rod; 2, concrete layer; 21, first concrete layer; 22, second concrete layer; 3, prefabricated wall assembly; 31, thermal insulation layer; 32, support framework; 321, first support framework; 322, second support framework; 323, tensioning rope; 33, distribution steel bar; 331, first distribution steel bar; 332, second distribution steel bar; 34, steel mesh; 35, vertical connecting steel bar. DETAILED DESCRIPTION
[0029] The preferred embodiments of the present application will be described in detail below with reference to the drawings, wherein the drawings constitute a part of the present application and serve to explain the principles of the present application together with the embodiments of the present application, but are not intended to limit the scope of the present application.
[0030] One specific embodiment of the present application discloses a prefabricated anti-seismic reinforced wall body for anti-seismic reinforcement of an existing masonry structure house, such as Figure 1As shown, it comprises an anchoring rod 1, a concrete layer 2 and a prefabricated wall assembly 3, which is prefabricated according to design requirements in a factory without on-site fabrication; one end of the anchoring rod 1 is anchored into the original wall, and the other end is connected with the concrete layer 2; the concrete layer 2 fills the gap between the prefabricated wall assembly 3 and the original wall, so that the original wall, the concrete layer 2 and the prefabricated wall assembly 3 are combined into a new wall to constrain, support and reinforce the original wall and improve the overall seismic performance of the house; compared with the prior art, the prefabricated wall assembly 3 is prefabricated according to design requirements in a factory, and the original wall can be constrained, supported and reinforced by installing the prefabricated wall assembly 3 on site and pouring the concrete layer 2, without the need for on-site formwork fabrication, thereby reducing the process of on-site formwork and improving the construction efficiency of house reinforcement.
[0031] Preferably, a plurality of anchoring rods 1 are provided, and the plurality of anchoring rods 1 are uniformly distributed in horizontal and vertical directions, and the spacing between adjacent anchoring rods 1 is less than or equal to 600 mm.
[0032] Preferably, the anchoring depth of the anchoring rod 1 anchored into the original wall is greater than or equal to 120 mm.
[0033] Preferably, as shown, Figure 2 As shown, the concrete layer 2 comprises a first concrete layer 21 and a second concrete layer 22, the first concrete layer 21 is poured inside the prefabricated wall assembly 3, the thickness of the first concrete layer 21 is greater than or equal to 60 mm, and the first concrete layer 21 is used to constrain, support and reinforce the original wall 100; the second concrete layer 22 is poured in the gap between the prefabricated wall assembly 3 and the original wall 100, the thickness of the second concrete layer 22 is 20 mm to 30 mm, and the second concrete layer 22 is used to enhance the adhesion between the first concrete layer 21, the prefabricated wall assembly 3 and the original wall; by fixing the anchoring rod 1, the prefabricated wall assembly 3, the first concrete layer 21 and the second concrete layer 22 to the original wall, the original wall, the concrete layer 2 and the prefabricated wall assembly 3 are combined into a new wall to constrain, support and reinforce the original wall and improve the overall seismic performance of the house.
[0034] Preferably, the prefabricated wall assembly 3 is a heat-preservation integrated form-removal prefabricated wall assembly, which can also perform external heat preservation reconstruction when the house is subjected to seismic reinforcement, so as to improve the heat preservation performance of the house, and the external heat preservation construction is not required after form removal, thereby improving the construction efficiency.
[0035] Preferably, as shown, Figure 3 and Figure 4As shown, the prefabricated wall assembly 3 comprises a thermal insulation layer 31, a support framework 32, distribution bars 33 and a steel mesh 34, the distribution bars 33 are arranged on the support framework 32 and fixedly connected with the support framework 32 to form a connecting support framework of concrete and play the role of a support framework; the thermal insulation layer 31 and the steel mesh 34 are installed on both sides of the support framework 32, the thermal insulation layer 31 is located away from the original wall, and the thermal insulation layer 31 can be used as a formwork for concrete pouring during construction and can also be used for thermal insulation of the house after reinforcement is completed; the steel mesh 34 is located close to the original wall, a first concrete pouring cavity is formed between the steel mesh 34 and the thermal insulation layer 31 for pouring the first concrete layer 21, and a second concrete pouring cavity is formed between the steel mesh 34 and the original wall for pouring the second concrete layer 22, and the steel mesh 34 can reduce the lateral force of the first concrete layer 21 on the original wall 100; the thermal insulation integrated non-removable formwork prefabricated wall assembly is formed by fixedly connecting the thermal insulation layer 31 and the steel mesh 34 on both sides of the support framework 32, and no additional concrete pouring formwork and additional tie structures are needed during construction, no formwork needs to be removed, and no additional thermal insulation construction is needed, thereby reducing the construction process, improving the construction and installation efficiency, and reducing the cost.
[0036] Preferably, the thermal insulation layer 31 uses a polystyrene board as a thermal insulation core material, the outside of the thermal insulation core material is wrapped with a glass fiber mesh and coated with a polymer cement, so that the thermal insulation layer 31 has a certain rigidity and integrity, thereby enabling the thermal insulation layer 31 to play a thermal insulation role in the use stage and to be used as a formwork for concrete pouring in the construction stage; the compressive strength of the thermal insulation layer 31 is greater than or equal to 0.5 N / mm 2 , the flexural strength is greater than or equal to 0.5 N / mm 2 , and the combustion grade preferably meets the A-level requirement.
[0037] Preferably, the support framework 32 comprises a first support furring 321, a second support furring 322 and a tensioning rope 323, and a plurality of the first support furring 321, the second support furring 322 and the tensioning rope 323 are provided; the first support furring 321 and the second support furring 322 are arranged in a cross shape and fixedly connected; the tensioning rope 323 is fixed at the connection between the first support furring 321 and the second support furring 322 and is tensioned, so that the support framework 32 forms a self-balancing stable whole to improve the rigidity and strength of the support framework 32 and thereby improve the stability of the support framework 32.
[0038] Preferably, the two tensioning ropes 323 are arranged in a cross arrangement, and the rigidity and strength of the support framework 32 are further improved by the cross tensioning of the two tensioning ropes 323, thereby further improving the stability of the support framework 32.
[0039] Preferably, the spacing between the plurality of second support joists 322 is less than or equal to 600 mm.
[0040] Preferably, the first support joists 321 and the second support joists 322 are each provided with holes, through which the connection between the first concrete layers 21 can be enhanced, thereby improving the compactness of the first concrete layers 21 and their strength.
[0041] Preferably, the distribution bars 33 include first distribution bars 331 and second distribution bars 332, and the first distribution bars 331 and the second distribution bars 332 are each provided in plurality; the first distribution bars 331 pass through the holes in the second support joists 322 and are fixedly connected to the second support joists 322; and the second distribution bars 332 are fixedly connected to the first distribution bars 331.
[0042] Preferably, the steel mesh 34 is provided with a reserved hole for passing the anchor rod 1.
[0043] Preferably, the prefabricated wall assembly 3 further includes a vertical connecting steel bar 35, one end of which is fixedly connected to the upper end of the steel mesh 34, and the other end extends out of the thermal insulation layer 31 and can be lapped with the steel mesh 34 in the upper adjacent prefabricated wall assembly 3, thereby being used for vertical connection of the two adjacent prefabricated wall assemblies 3 to improve the connection fastening degree between the two adjacent prefabricated wall assemblies 3 after pouring concrete.
[0044] Preferably, the lapped end of the vertical connecting steel bar 35 is annular, thereby being able to enhance the local extrusion effect on the concrete and further increase the anchoring bearing capacity.
[0045] Preferably, the vertical connecting steel bar 35 is provided in plurality, and the spacing between the two adjacent vertical connecting steel bars 35 is less than or equal to 600 mm.
[0046] Preferably, the prefabricated wall assembly 3 further includes a horizontal connecting steel bar (not shown in the figure), which is lapped on the distribution bars 33 of the two adjacent prefabricated wall assemblies 3 and is used for horizontal connection of the two adjacent prefabricated wall assemblies 3.
[0047] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application.
Claims
1. A prefabricated seismic-resistant reinforced wall system for seismic reinforcement of existing building walls, characterized in that, It includes anchor rods (1), concrete layers (2), and precast wall components (3); The precast wall component (3) includes an insulation layer (31), a support frame (32), distribution bars (33), a steel mesh (34), and vertical connecting bars (35). The insulation layer (31) and the steel mesh (34) are installed on both sides of the support frame (32). The distribution bars (33) are inserted through the support frame (32) and fixedly connected to the support frame (32). One end of the vertical connecting bars (35) is fixedly connected to the steel mesh (34), and the other end extends out of the insulation layer (31).
2. The prefabricated seismic-resistant reinforced wall according to claim 1, characterized in that, The steel mesh (34) and the insulation layer (31) form a first concrete pouring cavity.
3. The prefabricated seismic-resistant reinforced wall according to claim 2, characterized in that, The steel mesh (34) forms a second concrete pouring cavity between itself and the wall of the existing building.
4. A prefabricated seismic-resistant reinforced wall according to claim 3, characterized in that, The support frame (32) includes a first support keel (321), a second support keel (322), and a tension rope (323).
5. A prefabricated seismic-resistant reinforced wall according to claim 4, characterized in that, The first supporting keel (321) and the second supporting keel (322) are arranged in a cross shape and fixedly connected.
6. A prefabricated seismic-resistant reinforced wall according to claim 5, characterized in that, The tension rope (323) is fixed at both ends at the connection between the first support keel (321) and the second support keel (322).
7. A prefabricated seismic-resistant reinforced wall according to claim 6, characterized in that, The distribution reinforcement (33) includes a first distribution reinforcement (331) and a second distribution reinforcement (332), which are fixedly connected.
8. A prefabricated seismic-resistant reinforced wall according to claim 7, characterized in that, The first distribution steel bar (331) is fixedly connected to the second support keel (322); the second distribution steel bar (332) is fixedly connected to the first distribution steel bar (331).
9. A prefabricated seismic-resistant reinforced wall according to claim 8, characterized in that, The precast wall assembly (3) also includes horizontal connecting steel bars.
10. A prefabricated seismic-resistant reinforced wall according to claim 9, characterized in that, One end of the vertical connecting steel bar (35) is ring-shaped.