Steel-concrete shear wall joint structure and construction method

Abstract

The invention provides a steel-concrete shear wall joint structure and a construction method, and relates to building construction. The concrete shear wall joint structure comprises a steel pipe concrete column and a shear wall body, the steel pipe concrete column comprises a steel pipe column and first concrete, the first concrete is poured in the steel pipe column, and the steel pipe column is provided with a construction surface; the shear wall comprises steel cover plates, wood formworks and second concrete, the two steel cover plates are oppositely arranged, the two steel cover plates are welded to the construction face to define a first pouring space, the two wood formworks are oppositely arranged and correspond to the steel cover plates one to one, and each wood formwork is arranged on the side, away from the construction face, of the corresponding steel cover plate; a second pouring space is defined by the two wood formworks, the second pouring space communicates with the first pouring space, and second concrete is poured into the first pouring space and the second pouring space. The steel pipe column and the steel cover plate are welded through the same material, so that the cracking problem caused by material shrinkage does not exist in the welding position.

Description

Technical Field

[0001] This application relates to the field of building construction, and more particularly, to a steel-concrete shear wall joint structure and a construction method thereof. Background Art

[0002] Node cracking is one of the common problems in building decoration projects, especially prominent at the junctions of interior walls and ceilings, and walls and floors. During the building decoration process, due to various factors such as material shrinkage, temperature changes, and humidity fluctuations, the node parts are prone to cracking. Traditional treatment methods usually use putty filling or grid cloth reinforcement, but these methods can only relieve the problem temporarily and cannot fundamentally solve the hidden danger of node cracking. With the development of building decoration materials and technologies, people's requirements for the quality of building decoration are constantly increasing. The problem of node cracking not only affects the appearance but also may have an adverse impact on the durability and safety of the building structure. Therefore, how to effectively prevent and solve the problem of node cracking has become an urgent technical problem in building decoration projects. Summary of the Invention

[0003] The purpose of this application is to provide a steel-concrete shear wall joint structure and a construction method thereof, which can effectively prevent and solve the problem of node cracking.

[0004] In a first aspect, the present invention provides a steel-concrete shear wall joint structure, which includes a concrete-filled steel tube column and a shear wall body;

[0005] The concrete-filled steel tube column includes a steel tube column and first concrete, the first concrete is poured into the steel tube column, and the steel tube column is provided with a construction surface;

[0006] The shear wall body includes steel cover plates, wooden templates, and second concrete. The two steel cover plates are arranged oppositely, and the two steel cover plates are respectively welded to the construction surface to define a first pouring space. The two wooden templates are arranged oppositely, the wooden templates correspond to the steel cover plates one by one, and each wooden template is installed on the side of the steel cover plate away from the construction surface. The two wooden templates define a second pouring space, the second pouring space is communicated with the first pouring space, and the second concrete is poured into the first pouring space and the second pouring space.

[0007] In an optional embodiment, the surface of the wooden template close to the second concrete is defined as the inner surface of the wooden template, the surface of the steel cover plate away from the second concrete is defined as the outer surface of the steel cover plate, and the outer surface of the steel cover plate and the inner surface of the wooden template are on the same horizontal plane.

[0008] In an alternative embodiment, after the second concrete cures, it forms a concrete wall body, which includes a first segment and a second segment. The first segment is located within the first pouring space, and the second segment is located within the second pouring space. The wall surface of the second segment is flush with the outer surface of the steel cover plate.

[0009] In an alternative embodiment, the steel pipe column is configured as a square pipe, which includes four sides, and two vertically adjacent sides are configured as the construction surfaces. The number of shear wall bodies is the same as and corresponds one-to-one with the number of construction surfaces.

[0010] In an alternative embodiment, the steel-concrete shear wall joint structure further includes a steel beam, which is fixedly connected to at least one of the construction surfaces and is embedded in the second concrete.

[0011] In an alternative embodiment, the steel-concrete shear wall joint structure further includes two steel corbels. The remaining two sides of the square pipe are configured as non-construction surfaces, and one steel corbel is provided on each corresponding non-construction surface.

[0012] In an alternative embodiment, the steel corbel is configured as an I-beam.

[0013] In an alternative embodiment, the shear wall body further includes horizontal steel bars and vertical steel bars, which are cross-tied into a steel bar mesh, and the steel bar mesh is arranged in the first pouring space and the second pouring space.

[0014] In an alternative embodiment, stud bolts are provided on both the steel cover plate and the steel pipe column.

[0015] In a second aspect, the present invention provides a construction method for a steel-concrete shear wall joint structure as described in the foregoing embodiments, including:

[0016] Lifting the steel pipe column to the construction position and fixing the steel pipe column to the ground;

[0017] Lifting the steel cover plate and welding and fixing the two steel cover plates to the construction surfaces of the steel pipe column respectively to obtain a first pouring space;

[0018] Installing formwork on the side of the steel cover plate away from the construction surface to obtain a second pouring space;

[0019] Pouring first concrete into the steel pipe column, pouring second concrete in the first pouring space and the second pouring space, and removing the formwork after the strengths of the first concrete and the second concrete reach a preset strength.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] This application uses steel pipe columns and steel cover plates for welding of the same material, so that there is no cracking problem caused by material shrinkage at the welding position. Moreover, through the restraint effect of the steel cover plate, this application reduces the cracks generated by the surface shrinkage of the steel-concrete shear wall, prevents and solves the problem of joint cracking. In addition, this application pours the first concrete into the steel pipe column and the second concrete into the first pouring space and the second pouring space, thereby realizing the construction of the steel-concrete shear wall joint structure and improving the construction quality of the joint structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 Shows a three-dimensional structural schematic diagram of the steel-concrete shear wall joint structure in some embodiments (the wooden formwork is omitted);

[0024] Figure 2 Shows a plan structural schematic diagram of the steel-concrete shear wall joint structure in some embodiments (the wooden formwork is omitted);

[0025] Figure 3 Shows Figure 2 The enlarged view of part A in

[0026] Figure 4 Shows a connection schematic diagram of the shear wall body and the second construction surface in some embodiments;

[0027] Figure 5 Shows a three-dimensional structural schematic diagram of the steel cover plate in some embodiments.

[0028] MAIN ELEMENT SYMBOL DESCRIPTION:

[0029] 100 - Steel pipe concrete column; 110 - Steel pipe column; 111 - First construction surface; 112 - Second construction surface; 101 - Opening; 120 - First concrete; 200 - Shear wall body; 210 - Steel cover plate; 211 - Installation hole; 220 - Wooden formwork; 230 - Second concrete; 231 - First segment; 232 - Second segment; 201 - First pouring space; 202 - Second pouring space; 300 - Stud; 400 - Steel beam; 500 - Steel corbel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0033] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] Embodiment 1

[0036] A shear wall is a vertical member that resists horizontal loads (such as earthquakes and wind loads) through its own stiffness and strength. It is usually made of reinforced concrete and is widely used in high-rise buildings. Its main functions include: improving the overall stiffness of the building, reducing horizontal displacement, and enhancing seismic performance. In this embodiment, the steel-concrete shear wall joint structure of the stairwell is taken as an exemplary illustration.

[0037] Please refer to Figure 1 and Figure 2 , this embodiment provides a steel-concrete shear wall joint structure, which includes a concrete-filled steel tube column 100 and a shear wall body 200.

[0038] For the convenience of description and understanding, in the following text, the concrete is divided into a first concrete 120 and a second concrete 230 to distinguish the pouring positions of the concrete.

[0039] The concrete-filled steel tube column 100 includes a steel tube column 110 and a first concrete 120. The steel tube column 110 extends vertically, and the steel tube column 110 is provided with a construction surface. Specifically, the steel tube column 110 is configured as a square tube, and the square tube includes four sides, and two vertically adjacent sides are configured as the above-mentioned construction surface. The first concrete 120 is poured into the steel tube column 110. After the first concrete 120 hardens, the steel tube column 110 and the first concrete 120 form the concrete-filled steel tube column 100.

[0040] Please refer to Figure 2 and Figure 3 , in this embodiment, the two construction surfaces can be respectively defined as a first construction surface 111 and a second construction surface 112.

[0041] The number of shear wall bodies 200 is the same as and corresponds one-to-one to the number of construction surfaces, that is, one shear wall body 200 is constructed on the first construction surface 111, and another shear wall body 200 is constructed on the second construction surface 112. Since the first construction surface 111 and the second construction surface 112 are vertically adjacent, the two shear wall bodies 200 after construction are also vertically adjacent.

[0042] Taking the construction of one shear wall body 200 on the second construction surface 112 as an example, the following is an illustrative description.

[0043] Please refer to Figure 4 , the shear wall body 200 includes a steel cover plate 210, a wooden formwork 220, and a second concrete 230.

[0044] Two steel cover plates 210 are arranged oppositely, and the two steel cover plates 210 are respectively welded to the second construction surface 112 to define a first pouring space 201. In this embodiment, it can be set that the surface of the steel cover plate 210 away from the second concrete 230 is defined as the outer surface of the steel cover plate 210, and the surface of the steel cover plate 210 close to the second concrete 230 is defined as the inner surface of the steel cover plate 210.

[0045] Please refer to Figure 5 , during actual construction, the connection strength of the two steel cover plates 210 welded to the construction surface is insufficient. In this embodiment, mounting holes 211 can be reserved on the two steel cover plates 210, and then tie rods are passed through the two opposite mounting holes 211 to fix the two steel cover plates 210.

[0046] Please continue to refer to Figure 4 , the two wooden formworks 220 are arranged oppositely, the wooden formworks 220 correspond to the steel cover plates 210 one by one, and each wooden formwork 220 is installed on the side of the steel cover plate 210 away from the construction surface. The two wooden formworks 220 define a second pouring space 202, and the second pouring space 202 communicates with the first pouring space 201.

[0047] In this embodiment, it can also be set that the surface of the wooden formwork 220 close to the second concrete 230 is defined as the inner surface of the wooden formwork 220, and the surface of the wooden formwork 220 away from the second concrete 230 is defined as the outer surface of the wooden formwork 220.

[0048] The inner surface of the wooden formwork 220 and the outer surface of the steel cover plate 210 are on the same horizontal plane.

[0049] The second concrete 230 is poured into the first pouring space 201 and the second pouring space 202. After the second concrete 230 solidifies, a concrete wall body is formed. The concrete wall body includes a first segment 231 and a second segment 232. The first segment 231 is located in the first pouring space 201, and the second segment 232 is located in the second pouring space 202. The wall surface of the second segment 232 is flush with the outer surface of the steel cover plate 210.

[0050] Therefore, after the wooden formwork 220 is removed, the wall surface of the second segment 232 and the outer surface of the steel cover plate 210 jointly serve as the wall surface of the shear wall body 200. The wall surface of the shear wall body 200 is flat and seamless. After subsequent wall decoration construction such as applying putty and painting, the wall surface of the shear wall body 200 is not prone to cracking.

[0051] Since this embodiment has two construction surfaces, that is, there are two concrete wall bodies in this embodiment, the two concrete wall bodies are perpendicular to each other, and the space between the two concrete wall bodies is a stairwell, and the remaining space is a masonry house. The masonry house is built during subsequent construction and will not be described here.

[0052] Please refer to Figure 3 , the two perpendicular concrete wall bodies form an internal corner. At the internal corner position, since both the two steel cover plates 210 and the steel pipe columns 110 are made of stainless steel, which is welding of the same material, there is no problem of cracking caused by material shrinkage.

[0053] In some embodiments, by changing the shape of the steel pipe column 110, constructing two vertically arranged concrete wall bodies into external corners can also achieve the same technical effects.

[0054] In this embodiment, the height of the concrete wall body is the same as that of the concrete-filled steel pipe column 100. In some other embodiments, the height of the concrete wall body may also be different from that of the concrete-filled steel pipe column 100.

[0055] Please refer to Figure 3 and Figure 4 , the shear wall body 200 further includes horizontal steel bars and vertical steel bars. The horizontal steel bars and the vertical steel bars are cross-tied into a steel bar mesh, and the steel bar mesh is arranged in the first pouring space 201 and the second pouring space 202. In this embodiment, by embedding the steel bar mesh in the shear wall body 200, the stiffness and strength of the shear wall body 200 are improved, the horizontal displacement is reduced, and the seismic performance is enhanced.

[0056] Please refer to Figure 1 , to improve the reliability of this embodiment, stud bolts 300 are provided on both the steel cover plate 210 and the steel pipe column 110. Under the combined restraint of the stud bolts 300 and the steel cover plate 210, the cracks generated by the wall surface shrinkage are reduced, and the risk of cracking of the subsequent wall surface finishing layer is avoided.

[0057] Please refer to Figures 1 to 3 , based on the above content, the construction method of the steel-concrete shear wall joint structure in this embodiment is further described as follows:

[0058] S100. Lift the steel pipe column 110 to the construction position and fix the steel pipe column 110 to the ground.

[0059] Place the steel pipe column 110 vertically, and the upper end of the steel pipe column 110 is provided with an opening 101.

[0060] S200. Lift the steel cover plate 210 and weld and fix the two steel cover plates 210 to the construction surface of the steel pipe column 110 respectively to obtain the first pouring space 201.

[0061] In addition, this embodiment also uses tie rods to additionally fix the two steel cover plates 210.

[0062] S300. Install the wooden formwork 220 on the side of the steel cover plate 210 away from the construction surface to obtain the second pouring space 202.

[0063] During construction, align and install the inner surface of the wooden formwork 220 with the outer surface of the steel cover plate 210.

[0064] Please refer to Figures 2 to 4 .

[0065] Pour the first concrete 120 into the steel pipe column 110, and pour the second concrete 230 into the first pouring space 201 and the second pouring space 202. After the strengths of the first concrete 120 and the second concrete 230 reach the preset strength, remove the wooden formwork 220.

[0066] The concrete here is divided into the first concrete 120 and the second concrete 230. The first concrete 120 is poured downward from the opening 101 of the steel pipe column 110, and the second concrete 230 is poured downward from the upper directions of the first pouring space 201 and the second pouring space 202.

[0067] After the steel pipe column 110 and the steel cover plate 210 are both fixed, or before pouring the concrete, install stud bolts 300 on the steel cover plate 210 and the steel pipe column 110. A plurality of stud bolts 300 are installed on the steel cover plate 210, and a plurality of stud bolts 300 are installed on the steel pipe column 110. Specifically, install a row of stud bolts 300 vertically on the steel cover plate 210, and install a row of stud bolts 300 vertically on each side surface of the steel pipe column 110.

[0068] After the steel pipe column 110, the steel cover plate 210 and the wooden formwork 220 are all fixed, bind horizontal steel bars and vertical steel bars on-site in the first pouring space 201 and the second pouring space 202.

[0069] After the strengths of the first concrete 120 and the second concrete 230 reach the preset strength, a concrete wall body is formed, and the concrete wall body is divided into the first segment 231 and the second segment 232 as described above.

[0070] After removing the wooden formwork 220, the outer surface of the steel cover plate 210 is flush with the wall surface of the second segment 232, providing a flat wall surface for the subsequent wall decoration process.

[0071] This embodiment uses the steel pipe column 110 and the steel cover plate 210 for welding of the same material, and through the restraint effect of the steel cover plate 210, reduces the cracks generated by the surface shrinkage of the steel-concrete shear wall, prevents and solves the problem of joint cracking. Moreover, in this embodiment, the first concrete 120 is poured into the steel pipe column 110, and the second concrete 230 is poured into the first pouring space 201 and the second pouring space 202, thereby realizing the construction of the steel-concrete shear wall joint structure and improving the construction quality of the joint structure.

[0072] Embodiment Two

[0073] Please refer to Figure 1 、 Figure 2 and Figure 3, based on Embodiment 1, this embodiment is improved. The improvement lies in that the steel-concrete shear wall joint structure further includes a steel beam 400, the steel beam 400 is fixedly connected to at least one construction surface, and the steel beam 400 is embedded in the second concrete 230.

[0074] In this embodiment, the steel beam 400 is fixedly connected to the first construction surface 111, and the steel beam 400 is arranged in a direction perpendicular to the first construction surface 111.

[0075] In some other embodiments, the number of steel beams 400 is two. One steel beam 400 is fixedly connected to a corresponding construction surface, that is, one steel beam 400 is fixedly connected to the first construction surface 111, and the other steel beam 400 is fixedly connected to the second construction surface 112.

[0076] In this embodiment, by arranging the steel beam 400 in the shear wall body 200, and using the steel beam 400 as a hidden beam of the staircase, the stiffness and strength of this embodiment are further improved.

[0077] Embodiment 3

[0078] Please refer to Figure 1 、 Figure 2 and Figure 3 , based on the above embodiments, this embodiment is improved. The improvement lies in that the steel-concrete shear wall joint structure further includes two steel corbels 500. The remaining two sides of the square tube are configured as non-construction surfaces, and one steel corbel 500 is arranged on a corresponding non-construction surface.

[0079] The steel corbel 500 is configured as an I-beam.

[0080] The construction method of the steel-concrete shear wall joint structure further includes:

[0081] S500. Fix the steel corbel 500 on the non-construction surface.

[0082] The steel corbel 500 is used as a visible beam of the masonry building in subsequent construction, improving the stability and reliability of the masonry structure.

[0083] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0084] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A steel-concrete shear wall node structure, characterized in that: Including concrete-filled steel tube columns and shear walls; The steel tube concrete column comprises a steel tube column and first concrete, the first concrete is poured in the steel tube column, and the steel tube column is provided with a construction surface; The shear wall includes a steel cover plate, a wooden formwork and a second concrete. The two steel cover plates are arranged opposite to each other and are respectively welded to the construction surface to define a first pouring space. The two wooden formworks are arranged opposite to each other and correspond one to one with the steel cover plates. Each wooden formwork is installed on a side of the steel cover plate away from the construction surface. The two wooden formworks define a second pouring space, and the second pouring space is connected to the first pouring space. The second concrete is poured in the first pouring space and the second pouring space.

2. The steel-concrete shear wall node structure according to claim 1, characterized in that: The side of the wooden formwork close to the second concrete is defined as the inner surface of the wooden formwork, and the side of the steel cover plate away from the second concrete is defined as the outer surface of the steel cover plate. The outer surface of the steel cover plate and the inner surface of the wooden formwork are located on the same horizontal plane.

3. The steel-concrete shear wall node structure according to claim 2, characterized in that: After the second concrete is cured, a concrete wall body is formed. The concrete wall body includes a first segment and a second segment. The first segment is located in the first pouring space, and the second segment is located in the second pouring space. The wall surface of the second segment is flush with the outer surface of the steel cover plate.

4. The steel-concrete shear wall node structure according to any one of claims 1 to 3, characterized in that: The steel pipe column is configured as a square tube, and the square tube includes four side surfaces, wherein two vertically adjacent side surfaces are configured as the construction surfaces, and the number of the shear walls and the construction surfaces is consistent and one-to-one corresponding.

5. The steel-concrete shear wall node structure according to claim 4, characterized in that: It also includes a steel beam, which is fixedly connected to at least one of the construction surfaces and is pre-embedded in the second concrete.

6. The steel-concrete shear wall node structure according to claim 4, characterized in that: It also includes two steel brackets, and the remaining two side surfaces of the square tube are configured as non-construction surfaces, and one of the steel brackets is arranged on a corresponding one of the non-construction surfaces.

7. The steel-concrete shear wall node structure according to claim 6, characterized in that: The steel corbel is configured as an I-beam.

8. The steel-concrete shear wall node structure according to any one of claims 1 to 3, characterized in that: The shear wall also includes horizontal steel bars and vertical steel bars. The horizontal steel bars and the vertical steel bars are staggered and tied to form a steel mesh. The steel mesh is arranged in the first casting space and the second casting space.

9. The steel-concrete shear wall node structure according to any one of claims 1 to 3, characterized in that: The steel cover plate and the steel pipe column are both provided with bolts.

10. A construction method for a steel-concrete shear wall node structure according to any one of claims 1 to 9, characterized in that: include: Lifting the steel pipe column to the construction location and fixing the steel pipe column to the ground; Hoisting the steel cover plates, and respectively welding and fixing the two steel cover plates to the construction surfaces of the steel pipe columns to obtain a first pouring space; Installing a wooden formwork on the side of the steel cover plate away from the construction surface to obtain a second pouring space; A first concrete is poured in the steel pipe column, and a second concrete is poured in the first pouring space and the second pouring space. After the strength of the first concrete and the second concrete reaches a preset strength, the wooden formwork is removed.

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