Novel externally-wrapped multi-cavity steel plate concrete composite shear wall structure and construction method

Abstract

The invention discloses a novel externally-wrapped multi-cavity steel plate and concrete combined shear wall structure and a construction method, and relates to the technical field of shear walls, the novel externally-wrapped multi-cavity steel plate and concrete combined shear wall structure comprises two steel plates, and the two steel plates are symmetrically arranged on the two sides of a wall body in parallel; the two steel plates are connected by adopting a plurality of H-shaped steels, and the plurality of H-shaped steels are uniformly distributed between the steel plates; the ends of the steel plates are connected with the channel steel, multiple cavities are formed among the channel steel, the H-shaped steel and the steel plates, concrete is poured into the cavities, and the steel plates are connected with the channel steel and the H-shaped steel through high-strength bolts. According to the novel externally-wrapped multi-cavity steel plate concrete composite shear wall structure and the construction method, the comprehensive mechanical property of the shear wall structure is improved through the synergistic effect of high-performance materials and innovative structures, welding is not needed, and the shear wall structure is made to have the excellent mechanical property, meanwhile, construction is easier and more convenient, efficiency is higher, and the shear wall structure is more suitable for standardized machining; the concrete has the characteristics of high safety performance, high construction performance, high environmental protection performance, high maintenance performance and high durability.

Description

Technical Field

[0001] This invention relates to the field of shear wall technology, and in particular to a novel composite shear wall structure with externally encased multi-cavity steel plate and concrete, and its construction method. Background Technology

[0002] In recent years, high energy consumption and high carbon emissions have become common problems facing the global construction industry. There is a significant gap between the current state of the industry and the ideal decarbonization path. my country's traditional construction industry also faces severe problems of high energy consumption and high carbon emissions. Developing high-performance structures and achieving prefabrication and assembly are effective ways to address the current high energy consumption and high carbon emissions in the construction industry, accelerate its transformation and upgrading, and achieve green and low-carbon development. Applying high-performance structures to the renovation of existing structures and the construction of new structures can improve the seismic resistance of urban buildings and infrastructure, thereby enhancing urban resilience. Developing high-performance structures and establishing corresponding design calculation theories and methods can provide technical support for future important industrial and civil buildings and major / strategic infrastructure construction.

[0003] High-performance structures possess characteristics such as high safety, high usability, high construction efficiency, high environmental friendliness, high maintainability, and high durability. Traditional double-steel plate composite structures mostly use conventional strength materials, limiting the development of such structures towards higher strength. To address this, this invention presents a novel multi-cavity steel plate reinforced concrete composite shear wall structure and construction method. Through the synergistic effect of high-performance materials and innovative construction, its comprehensive mechanical properties are improved. No welding is required, making construction simpler and more efficient, and significantly reducing carbon emissions while ensuring economic efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a novel multi-cavity steel plate concrete composite shear wall structure and construction method, which improves its comprehensive mechanical properties through the synergistic effect of high-performance materials and innovative construction, ensuring economic efficiency while significantly reducing carbon emissions.

[0005] To achieve the above objectives, the present invention provides a novel multi-cavity steel plate concrete composite shear wall structure, comprising two steel plates arranged symmetrically on both sides of the wall, connected by H-beams, wherein multiple H-beams are evenly distributed among the steel plates, the shear wall ends are connected to channel steel, and multiple cavities are formed between the channel steel, the H-beams and the steel plates, the cavities being filled with concrete, and the steel plates and the channel steel and the H-beams are all connected by friction-type high-strength bolts.

[0006] Preferably, the multi-chamber is filled with concrete, and the concrete and the two steel plates form a sandwich structure.

[0007] Preferably, the steel plate is provided with bolt holes, which are distributed in an array.

[0008] Preferably, the upper and lower flanges of the H-beam are each provided with friction-type high-strength bolts that are pre-fixed thereon, the friction-type high-strength bolts pass through the bolt holes and are connected to the steel plate, and the web of the H-beam is provided with holes.

[0009] Preferably, the friction-type high-strength bolt is provided on the inner side of the channel steel flange, and the friction-type high-strength bolt passes through the bolt hole and is connected to the end of the steel plate.

[0010] A construction method for a novel composite shear wall structure with externally encased multi-cavity steel plate and concrete includes the following steps: S1. Construction preparation: Fix (spot weld) friction type high-strength bolts on the inner side of the channel steel flange and the upper and lower flanges of the H-beam. S2. Install the channel steel and H-beams into place, and tighten the friction-type high-strength bolts after completing the positioning and installation of the steel plates; S3. Fill the cavity composed of channel steel, H-beam steel and steel plate with concrete to form a sandwich structure with steel plates on both sides and concrete filling inside. The pre-drilled holes on the web of the S4 and H-beams facilitate the flow of concrete, prevent slippage between the steel plate and the concrete, and inhibit the shrinkage of the core concrete.

[0011] Therefore, this invention proposes a novel externally encased multi-cavity steel plate concrete composite shear wall structure and construction method, which requires no welding, is simple to construct, more efficient, and more suitable for standardized processing; it has the characteristics of high safety performance, high usability performance, high construction performance, high environmental performance, high maintenance performance and high durability performance, and is suitable for dry-connected prefabricated assembled structural systems with high construction efficiency and low carbon emissions.

[0012] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of a novel externally encased multi-cavity steel plate concrete composite shear wall structure according to the present invention; Figure 2 This is a front view of a novel multi-cavity steel plate concrete composite shear wall structure according to the present invention. Figure 3 This is a side view of a novel composite shear wall structure with externally encased multi-cavity steel plate and concrete according to the present invention. Figure Labels 1. Steel plate; 2. H-beam; 3. Channel steel; 4. Concrete; 5. Friction type high-strength bolts. Detailed Implementation

[0014] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0016] Example Please see Figures 1-3 This invention provides a novel multi-cavity steel plate and concrete composite shear wall structure, comprising two steel plates 1, H-beams 2, channel steel 3, concrete 4, and friction-type high-strength bolts 5. Two steel plates 1 are provided, with pre-drilled bolt holes. Their left and right ends are connected to the upper and lower flanges of the channel steel 3 via friction-type high-strength bolts 5. Multiple H-beams are provided, with their middle portions connected to the upper and lower flanges of the H-beams 2 via friction-type high-strength bolts 5, forming a multi-cavity cross-section.

[0017] Friction-type high-strength bolts 5 are welded to the inner sides of the upper and lower flanges of the H-beam 2 and connected to the middle of the two steel plates 1. After the steel plates are positioned and installed, the friction-type high-strength bolts 5 are tightened. Holes are left on the web of the H-beam 2 to facilitate the flow of concrete 4, prevent slippage between the steel plates and concrete 4, and inhibit the shrinkage of the core concrete 4, ensuring effective connection between the steel plates 1 and providing constraint for the core concrete.

[0018] The inner sides of the upper and lower flanges of the channel steel 3 are equipped with friction-type high-strength bolts 5, which are connected to the ends of the two steel plates 1. After the steel plates 1 are positioned and installed, the bolts are tightened.

[0019] Concrete 4 is filled into the multi-cavity structure formed by steel plate 1, forming a "sandwich" structure with steel plates on both sides and concrete 4 inside. The concrete 4 enhances the overall mechanical properties through its synergistic effect with steel plate 1.

[0020] Friction-type high-strength bolts 5 are fixed to the inner sides of the upper and lower flanges of the H-beam 2 and the inner sides of the upper and lower flanges of the channel steel, for connecting the steel plate 1, H-beam 2, and channel steel 3, ensuring the overall reliability of the high-performance structure consisting of an outer multi-cavity steel plate filled with concrete. The steel plates are connected using bolts, relying on the interaction between the high-strength bolts, the steel plate 1, and the concrete 4.

[0021] A construction method for a novel composite shear wall structure with externally encased multi-cavity steel plate and concrete includes the following steps: S1. Construction preparation: Fix (spot weld) friction type high-strength bolts 5 on the inner side of the upper and lower flanges of channel steel 3 and H-beam 2; S2. Install the channel steel 3 and H-beam 2 into place, and tighten the friction type high-strength bolts 5 after completing the positioning and installation of the steel plate 1. S3. Fill the cavity composed of channel steel 3, H-beam steel 2 and steel plate 1 with concrete 4 to form a sandwich structure with steel plates on both sides and concrete 4 inside. The pre-reserved holes on the web of S4 and H-beam 2 facilitate the flow of concrete 4, prevent slippage between steel plate 1 and concrete 4, and inhibit the shrinkage of core concrete 4.

[0022] Therefore, this invention employs a novel externally encased multi-cavity steel plate concrete composite shear wall structure and construction method. On one hand, it enhances the comprehensive mechanical properties through the synergistic effect of innovative construction and novel connection methods, eliminating the need for any welding, making construction simpler, more efficient, and more suitable for standardized processing. On the other hand, it can significantly reduce carbon emissions while ensuring economic efficiency, making it an economical, green, high-performance structural component with high safety, high usability, high construction performance, high environmental performance, high maintainability, and high durability. It is suitable for the construction of important buildings and major infrastructure such as super high-rise buildings, super large bridges, immersed tunnel projects, nuclear power plant protective shells, high-resistance protection projects, polar exploration infrastructure, and deep-sea space stations. It is also suitable for dry-connection prefabricated assembly structural systems with high construction efficiency and low carbon emissions.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A new type of composite shear wall structure of steel plate concrete with external wrapping, characterized in that: The shear wall is composed of steel plates, connecting H-shaped steels and concrete, two steel plates are arranged in parallel and symmetrically on both sides of the wall, the H-shaped steels are arranged between the two steel plates, the H-shaped steels are arranged uniformly between the steel plates, the end of the shear wall is connected with a channel steel, a plurality of cavities are formed between the channel steel, the H-shaped steels and the steel plates, the cavities are filled with the concrete, and the steel plates and the channel steel and the H-shaped steels are connected by friction type high-strength bolts.

2. A new type of composite shear wall structure of multi-cavity steel plate concrete with external wrapping according to claim 1, characterized in that: The plurality of cavities are filled with the concrete, and the concrete and the two steel plates form a sandwich structure.

3. A new type of composite shear wall structure of multi-cavity steel plate encased concrete according to claim 2, characterized in that: Bolt holes are arranged on the steel plates and are arranged in an array.

4. A new type of composite shear wall structure of multi-cavity steel plate encased concrete according to claim 3, characterized in that: Friction type high-strength bolts are arranged on the upper and lower flanges of the H-shaped steels and are fixed on the flanges, the friction type high-strength bolts are connected with the steel plates through the bolt holes, and holes are arranged on the webs of the H-shaped steels.

5. A new type of composite shear wall structure of multi-cavity steel plate encased concrete according to claim 4, characterized in that: The inside of the flange of the channel steel is provided with the friction type high-strength bolts, and the friction type high-strength bolts are connected with the end of the steel plate through the bolt holes.

6. A construction method of a new type of composite shear wall structure of multi-cavity steel plate encased concrete according to any one of claims 1 to 5, characterized in that, The method comprises the following steps: S1, construction preparation, the friction type high-strength bolts are fixed on the inside of the flange of the channel steel and the upper and lower flanges of the H-shaped steel; S2, the channel steel and the H-shaped steel are installed in place, the friction type high-strength bolts are tightened after the positioning and installation of the steel plate are completed; S3, the cavities formed by the channel steel, the H-shaped steel and the steel plate are filled with the concrete, and a sandwich structure formed by the two steel plates and the concrete is formed; S4, the holes reserved on the web of the H-shaped steel facilitate the flow of the concrete, prevent the sliding between the steel plate and the concrete and inhibit the shrinkage of the concrete in the core area.

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