Cold-formed thin-walled steel shear wall

Abstract

The utility model discloses a cold-formed thin-walled steel shear wall which comprises two groups of curled channel steel, two groups of cold-formed thin-walled steel plates and a square steel plate, the two groups of cold-formed thin-walled steel plates can be attached to the two surfaces of the square steel plate, and the curled channel steel can be sleeved on the outer surfaces of the two ends of the square steel plate and the two groups of cold-formed thin-walled steel plates which are attached to each other. The outer surface of the bent corner of the cold-formed thin-walled steel plate is wrapped with a hook corner at the opening end of the hemming channel steel, certain clamping force can be applied to the middle square-frame-shaped steel plate through wrapping force, and the attaching portions of the hemming channel steel, the cold-formed thin-walled steel plate and the square-frame-shaped steel plate can be locked together through bolts and threads. And a prefabricated shear wall frame is formed by a combination of the hemming channel steel, the cold-formed thin-walled steel plate and the square-frame-shaped steel plate. Through the design of the curled channel steel, the cold-formed thin-walled steel plates and the square-frame-shaped steel plates, the shear wall can be prefabricated in a factory and only needs to be spliced and connected on site, the construction period can be shortened, and the construction quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, and particularly relates to a cold-formed thin-walled steel shear wall. Background Technique

[0002] A shear wall is also called a wind-resistant wall, a seismic wall or a structural wall. It is a wall in a building or structure that mainly bears the horizontal load and vertical load (gravity) caused by wind load or seismic action, and prevents the structure from shear (shearing) failure. Most traditional shear wall structures are to solve the insulation problem and meet the energy-saving index. Usually, when constructing, it is necessary to externally attach insulation boards or adopt the structure of sandwich panels.

[0003] For example, the patent with the national authorized patent publication number CN210976164U discloses a cold-formed thin-walled steel shear wall, which includes a concrete layer, cold-formed thin-walled steel keels and horizontal steel bars. The cold-formed thin-walled steel keels are integrally composed of webs and two C-shaped grooves, and the C-shaped grooves are arranged on both sides of the web; the two C-shaped grooves of the cold-formed thin-walled steel keels are embedded in the concrete layer, and the horizontal steel bars pass through the cold-formed thin-walled steel keels and are embedded in the concrete layer together. The utility model not only has better seismic performance than traditional shear walls, excellent insulation performance, and the insulation layer is not easy to fall off during later use, but also effectively reduces the overall cost, is simple in construction and easy to promote.

[0004] However, for the above-mentioned cold-formed thin-walled steel shear wall, during the construction process of the shear wall, it is impossible to perform prefabricated assembly operations on it. Workers need to pour concrete and insert steel bars step by step. It is impossible to directly pour concrete in one step, which will lead to low overall construction efficiency and it is difficult to ensure that the quality of each shear wall is consistent, resulting in different wall strengths and performances. Content of the Utility Model

[0005] The purpose of the utility model is to provide a cold-formed thin-walled steel shear wall to solve the problems in the above background technique that during the construction process of the shear wall, it is impossible to perform prefabricated assembly operations on it, which will lead to low overall construction efficiency and it is difficult to ensure that the quality of each shear wall is consistent, resulting in different wall strengths and performances.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cold-formed thin-walled steel shear wall includes: two groups of lipped channels, two groups of cold-formed thin-walled steel plates and a square steel plate. The two groups of cold-formed thin-walled steel plates can be attached to both sides of the square steel plate, and the two groups of lipped channels can be sleeved on the outer surfaces of the two ends of the square steel plate and the two groups of cold-formed thin-walled steel plates that are attached.

[0008] Preferably, the hook angle at the open end of the lipped channel steel wraps around the outer surface of the bending corner of the cold-formed thin-walled steel plate, and a certain clamping force can be exerted on the middle square steel plate through the wrapping force;

[0009] Among them, the fitting parts between the lipped channel steel, the cold-formed thin-walled steel plate and the square steel plate can be locked together by bolt threads.

[0010] Preferably, the combination of the lipped channel steel, the cold-formed thin-walled steel plate and the square steel plate forms a precast shear wall frame.

[0011] Preferably, a reserved opening is formed between the U-shaped surfaces of the cold-formed thin-walled steel plates that fit the surface of the square steel plate, and steel bars can be inserted into the reserved opening.

[0012] Preferably, after steel bars are inserted into the reserved opening, concrete can be poured to form a shear wall composite structure.

[0013] Preferably, a thermal insulation board or a sound insulation board is inserted into the square steel plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Through the design of the lipped channel steel, the cold-formed thin-walled steel plate and the square steel plate, during use, the staff can attach two cold-formed thin-walled steel plates to both sides of the square steel plate, and then slide and insert two sets of lipped channel steels from the upper or lower end onto the outer surfaces on both sides of the square steel plate and the cold-formed thin-walled steel plate that are attached. Through the sliding insertion and sleeving of the lipped channel steel, the hook angle of the lipped steel channel will wrap around the outer surface of the bending corner of the cold-formed thin-walled steel plate, and a certain clamping force can be exerted on the middle square steel plate through the wrapping force, that is, the assembly operation of the shear wall is completed. The shear wall is prefabricated in the factory, and only assembly and connection are required on site, which can shorten the construction period and improve the construction quality;

[0016] The U-shaped groove structure of the cold-formed thin-walled steel section can provide additional space and can be used for inserting steel bars. The corrugated structure itself has relatively high bending stiffness and strength. If steel bars are inserted into the U-shaped groove and filled with concrete, the bearing capacity and stability of the wall can be further enhanced and a shear wall composite structure can be formed. Forming a shear wall composite structure can significantly increase the bearing capacity of the wall, especially the shear resistance and compressive strength. And by inserting steel bars into the U-shaped groove of the cold-formed thin-walled steel plate and filling with concrete, the strength and stiffness of the wall can be improved without increasing the wall thickness. For the indoor space layout of the building, this design can save the wall thickness and increase the effective usable area. Description of the Drawings

[0017] Figure 1This is a schematic structural diagram of the cold-formed thin-walled steel shear wall of the present utility model after overall assembly;

[0018] Figure 2 This is a schematic top view structural diagram of the cold-formed thin-walled steel shear wall of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the cold-formed thin-walled steel shear wall of the present utility model in an overall unfolded state.

[0020] In the figure: 1. Lipped channel steel; 101. Hook angle; 2. Cold-formed thin-walled steel plate; 201. Reserved opening; 3. Square steel plate; 4. Steel bar. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 - 3 shown, this embodiment provides a cold-formed thin-walled steel shear wall, including: two groups of lipped channel steels 1, two groups of cold-formed thin-walled steel plates 2, and a square steel plate 3. The two groups of cold-formed thin-walled steel plates 2 can be attached to both sides of the square steel plate 3, and the two groups of lipped channel steels 1 can be sleeved on the outer surfaces of both ends of the attached square steel plate 3 and the two groups of cold-formed thin-walled steel plates 2.

[0023] The hook angle 101 at the open end of the lipped channel steel 1 wraps around the outer surface of the bending corner of the cold-formed thin-walled steel plate 2, and can apply a certain clamping force to the middle square steel plate 3 through the wrapping force;

[0024] Among them, the fitting parts between the lipped channel steel 1, the cold-formed thin-walled steel plate 2, and the square steel plate 3 can be locked together by bolt threading.

[0025] The combination of the lipped channel steel 1, the cold-formed thin-walled steel plate 2, and the square steel plate 3 forms a precast shear wall frame.

[0026] A reserved opening 201 is formed between the U-shaped surfaces of the cold-formed thin-walled steel plates 2 that are attached to the surface of the square steel plate 3, and steel bars 4 can be inserted into the reserved opening 201.

[0027] After the steel bars 4 are inserted into the reserved opening 201, concrete can be poured to form a shear wall composite structure.

[0028] A heat insulation board or a sound insulation board is inserted into the square steel plate 3. The heat insulation board can be a polyurethane heat insulation board, which has good heat insulation performance and compressive strength, low thermal conductivity, good thermal performance, moisture-proof and waterproof properties, and the advantages of fire prevention, flame retardancy and high temperature resistance. The sound insulation board can be a mineral wool board, which belongs to an environment-friendly material and has excellent sound insulation, heat insulation, heat preservation and fire prevention effects. The porous structure inside it can effectively absorb and isolate sound.

[0029] Through the design of the lipped channel steel 1, the cold-formed thin-walled steel plate 2 and the square steel plate 3, during use, the staff can attach two groups of cold-formed thin-walled steel plates 2 to both sides of the square steel plate 3, and then slide and insert two groups of lipped channel steels 1 from the upper end or the lower end onto the outer surfaces of the two sides of the square steel plate 3 and the cold-formed thin-walled steel plate 2 that are attached to each other. Through the sliding insertion and sleeving of the lipped channel steel 1, the hook angle 101 of the lipped steel channel 1 will wrap around the outer surface of the bending corner of the cold-formed thin-walled steel plate 2, and a certain clamping force can be exerted on the middle square steel plate 3 through the wrapping force, that is, the assembly operation of the shear wall is completed. The shear wall is prefabricated in the factory, and only assembly and connection are required on site, which can shorten the construction period and improve the construction quality.

[0030] The U-shaped groove structure of the cold-formed thin-walled section steel of the corrugated steel 2 can provide additional space and can be used for inserting the steel bar 4. The corrugated structure itself has relatively high flexural stiffness and strength. If steel bars are inserted into the U-shaped groove and filled with concrete, the bearing capacity and stability of the wall can be further enhanced to form a shear wall composite structure. Forming a shear wall composite structure can significantly increase the bearing capacity of the wall, especially the shear resistance and compressive strength. And by inserting the steel bar 4 into the U-shaped groove of the cold-formed thin-walled steel plate 2 and filling it with concrete, the strength and stiffness of the wall can be improved without increasing the wall thickness. For the indoor space layout of the building, this design can save the wall thickness and increase the effective usable area.

[0031] Summarize and sort out the working steps of this solution according to the above technical solution: During use, the staff can attach two groups of cold-formed thin-walled steel plates 2 to both sides of the square steel plate 3, and then slide and insert two groups of lipped channel steels 1 from the upper or lower end onto the outer surfaces of the two sides of the square steel plate 3 and the cold-formed thin-walled steel plate 2 that are attached to each other. Through the sliding and insertion of the lipped channel steel 1, the hook angle 101 of the lipped channel steel 1 will wrap around the outer surface of the bending corner of the cold-formed thin-walled steel plate 2, and a certain clamping force can be exerted on the middle square steel plate 3 through the wrapping force. Subsequently, the fitting parts between the lipped channel steel 1, the cold-formed thin-walled steel plate 2, and the square steel plate 3 can be locked together by bolt threads, thus completing the assembly operation of the shear wall. Subsequently, this assembled shear wall can be placed in the corresponding position, and steel bars 4 can be inserted into the reserved opening 201 formed between the U-shaped surfaces of the cold-formed thin-walled steel plates 2 that are attached to the surface of the square steel plate 3. Then, heat insulation, sound insulation and other materials can be filled in the square steel plate 3. Subsequently, concrete can be poured into and on the outer surface of the reserved opening 201 of this assembled shear wall to complete the construction.

[0032] In summary: This shear wall is prefabricated in the factory, and only assembly and connection are required on site, which can shorten the construction period and improve the construction quality.

[0033] Parts not involved in the present invention are the same as or can be implemented using existing technologies. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold-formed thin-walled steel shear wall, characterized in that: include: Two groups of rolled channel steels (1), two groups of cold-bent thin-walled steel plates (2) and square frame steel plates (3), wherein the two groups of cold-bent thin-walled steel plates (2) are bonded to two sides of the square frame steel plates (3), and the two groups of rolled channel steels (1) are respectively mounted on the outer surfaces of both ends of the bonded square frame steel plates (3) and the two groups of cold-bent thin-walled steel plates (2).

2. The cold-formed thin-walled steel shear wall according to claim 1, characterized in that: The hook angle (101) at the open end of the curled channel steel (1) is wrapped around the outer surface of the bent corner of the cold-bent thin-walled steel plate (2), and can exert a clamping force on the square frame steel plate (3) in the middle through the wrapping force; The fitting parts between the rolled channel steel (1), the cold-bent thin-walled steel plate (2) and the square frame steel plate (3) are locked together by bolt threads.

3. The cold-bent thin-walled steel shear wall according to claim 1, characterized in that: The combination of the rolled channel steel (1), the cold-bent thin-walled steel plate (2) and the square frame steel plate (3) forms a prefabricated shear wall frame.

4. The cold-bent thin-walled steel shear wall according to claim 3, characterized in that: A reserved opening (201) is formed between the U-shaped surfaces of the cold-bent thin-walled steel plate (2) that fits the surface of the square frame-shaped steel plate (3), and the reserved opening (201) can be used for the steel bar (4) to be inserted.

5. The cold-bent thin-walled steel shear wall according to claim 4, characterized in that: A steel bar (4) is inserted into the reserved opening (201), and then concrete is poured to form a shear wall composite structure.

6. The cold-bent thin-walled steel shear wall according to claim 4, characterized in that: A heat insulation board or a sound insulation board is inserted and filled in the square frame-shaped steel plate (3).

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