M-type steel lattice and reinforced shear wall skeleton structure

Abstract

The utility model provides an M-shaped steel lattice; it includes a steel lattice main body and curling parts on both sides, the curling parts form a semi-open casting notch beside the steel lattice main body, and a plurality of groups of assembly holes are opened on the steel lattice main body, and the plurality of groups of assembly holes are spaced apart in the up-down direction. The M-shaped steel lattice reinforced shear wall skeleton adopts steel strip raw material, and the formed steel lattice is connected with the steel bar by welding to form a shear wall force skeleton system. The utility model also provides a reinforced shear wall skeleton structure; it includes a plurality of M-shaped steel lattices, a plurality of horizontal distribution bars, a plurality of vertical steel bars and a plurality of hooks, a plurality of M-shaped steel lattices and a plurality of vertical steel bars are arranged at intervals, a plurality of horizontal distribution bars penetrate a plurality of assembly holes of the steel lattice main body of all M-shaped steel lattices, and the hooks respectively fix the vertical steel bars and the horizontal distribution bars. The utility model solves the problems of different steel bar spacing, inaccurate steel bar positioning, and skew of the steel bar skeleton due to insufficient strength and rigidity caused by manual steel bar binding on site of the shear wall steel bar skeleton.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to an M-shaped steel lattice used for casting a shear wall structure.

[0002] The utility model also relates to a reinforced steel shear wall skeleton structure. Background Art

[0003] In current construction projects, shear walls are an important component to ensure the overall structural stability and bearing capacity of buildings. At present, domestic shear wall frames mainly use reinforced shear walls that are cast on site or prefabricated shear walls. The first construction method requires a large amount of on-site reinforcement construction work, and due to human factors, the spacing of shear wall reinforcements varies, the reinforcement positioning is inaccurate, and the shear wall reinforcement forming effect is poor, which will have a certain impact on the structural stress; the second construction method requires the use of a large-tonnage tower crane, and the effect of shear wall grouting will affect the bond strength between the shear wall reinforcement and the prefabricated parts, affecting the safety of the structure.

[0004] The patent with application number CN201911138887.X relates to a steel lattice shear wall, which belongs to the field of construction engineering technology, including a shear wall in the shape of a straight line. The shear wall includes channel steels vertically arranged at both ends of the shear wall, and an I-beam is arranged between the two channel steels. The notch of the channel steel faces the I-beam, and the two side flanges of the I-beam are respectively fixedly connected with a first tie bar, and the end of the first tie bar away from the I-beam is fixedly connected to the flange of the channel steel, and the first tie bar is arranged in parallel at equal intervals along the vertical direction of the channel steel; the shear wall is arranged in a straight line by the channel steel, the I-beam and the first tie bar, the width of the channel steel is the same as that of the I-beam, and the first tie bar is fixedly connected to the flanges of the channel steel and the I-beam. There are no protruding parts, do not occupy indoor space, improve the utilization rate of indoor space, and also play a role in aesthetics.

[0005] However, the above patent technology has a complex structure and complicated assembly process, and cannot solve the technical problems existing in the prior art. Therefore, developing a new type of steel lattice structure to improve construction efficiency, reduce construction costs and ensure project quality has great practical significance and application value.

[0006] Moreover, the traditional shear wall steel frame construction has too large steel bar spacing, inaccurate positioning, and insufficient steel frame rigidity, which causes the frame to be skewed, reducing on-site construction time, reducing the area occupied by the construction site steel bar processing site, and reducing construction costs. Utility Model Content

[0007] The purpose of the utility model is to provide an M-shaped steel lattice to solve the problems raised in the above background technology:

[0008] (1) How to improve the accuracy of steel bar positioning and arrangement and on-site construction of shear wall frames through improvements in steel lattice structures.

[0009] The utility model aims to provide a reinforced shear wall skeleton structure, which can solve the problems raised in the above-mentioned background technology.

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] An M-shaped steel lattice;

[0012] It includes an integrally formed steel lattice main body and curling parts on both sides. The length direction of the steel lattice main body is consistent with the length direction of the curling parts. The curling parts form a semi-open casting groove beside the steel lattice main body. The steel lattice main body is provided with a plurality of groups of assembly holes for the horizontal distribution reinforcement of the shear wall to pass through, and the plurality of groups of assembly holes are spaced apart in the up and down directions.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the curling portion includes a first folded edge, a second folded edge, a third folded edge and a fourth folded edge, there is a first bend between the first folded edge and the steel lattice body, there is a second bend between the first folded edge and the second folded edge, there is a third bend between the second folded edge and the third folded edge, there is a fourth bend between the third folded edge and the fourth folded edge, and the first folded edge, the second folded edge, the third folded edge and the fourth folded edge together form an unclosed casting groove.

[0015] Furthermore, the bending angles of the first bend, the second bend, the third bend and the fourth bend are all 90°.

[0016] Furthermore, the assembly hole of the steel lattice main body extends to the first folded edge, and after the horizontal distribution reinforcement of the shear wall passes through the assembly hole of the steel lattice main body, the horizontal distribution reinforcement rests on the first folded edge.

[0017] Furthermore, the length of the first folded edge is smaller than the length of the third folded edge, and the length of the second folded edge is larger than the length of the fourth folded edge.

[0018] Furthermore, the steel lattice main body is provided with a plurality of weight-reducing holes spaced in sequence along the up-down direction.

[0019] After adopting such a structure, the M-shaped steel lattice reinforced shear wall skeleton uses steel strip raw materials, which are processed into M-shaped lattices for secondary processing, and then the formed steel lattice is connected with the steel bars by welding to form a shear wall force skeleton system.

[0020] The shear wall reinforcement spacing standard and accurate reinforcement positioning of this type of steel lattice reinforced shear wall frame construction can achieve good molding effect after the shear wall frame construction is completed, reducing the on-site construction time and the number of workers. At the same time, it can be customized on a large scale in the factory and directly lifted to the construction surface for installation, reducing the area of ​​on-site reinforcement processing site, thereby saving resources and greatly reducing the burden on the environment, which is in line with the green and environmentally friendly construction advocated by the country.

[0021] In order to achieve the above purpose, the utility model also provides the following technical solutions:

[0022] A reinforced shear wall skeleton structure prepared using the above-mentioned M-shaped steel lattice;

[0023] It comprises a plurality of M-shaped steel lattices, a plurality of horizontal distribution bars, a plurality of vertical steel bars and a plurality of hooks. The plurality of M-shaped steel lattices and the plurality of vertical steel bars are arranged at intervals respectively. The plurality of horizontal distribution bars respectively penetrate a plurality of assembly holes of the steel lattice body of all the M-shaped steel lattices. The hooks respectively fix the vertical steel bars and the horizontal distribution bars.

[0024] After adopting such a structure, the M-shaped steel lattice reinforced shear wall skeleton technology is used to increase the strength and rigidity of the shear wall skeleton, and then the steel bars are connected to the formed steel lattice by welding to form a steel lattice reinforced shear wall skeleton, which solves the problems of uneven steel bar spacing, inaccurate steel bar positioning, and skewness of the steel bar skeleton due to insufficient strength and rigidity caused by manual steel bar tying on site. At the same time, the M-shaped steel lattice reinforced shear wall skeleton is produced in a factory and installed on site to reduce on-site construction time and construction costs. The formed steel lattice uses steel strip raw materials, which are processed into M-shaped lattices for the second time, and then connected with steel bars to form a shear wall force skeleton system. During on-site installation, it is transported to the construction surface by a tower crane, and the lower part of the finished skeleton is tied and connected with the reserved steel bars of the shear wall.

[0025] This reinforced shear wall skeleton structure has the following technical effects:

[0026] (1) Accelerate the construction progress, process and shape in the factory, install directly on site, and the construction speed is fast.

[0027] (2) To ensure the quality of the project, the rolled edges of the pressed M-shaped steel lattice increase the rigidity and stability of the steel frame. The reinforced shear wall frame structure is welded and formed in accordance with the standard. The reserved reinforcement and the connected parts of the frame are manually tied on site, ensuring the accurate positioning of the shear wall reinforcement, the standard arrangement of the reinforcement and the forming effect of the shear wall frame during on-site construction.

[0028] (3) Reduce construction costs. Using an M-shaped steel frame system can shorten the shear wall construction period and reduce the amount of labor, thereby reducing construction costs.

[0029] (4) Improve construction safety. The steel lattice reinforcement skeleton is light in weight and easy and quick to install, which reduces the safety risks of shear wall construction.

[0030] (5) Green and environmentally friendly. The reinforced shear wall skeleton structure uses M-shaped steel lattice instead of steel bars, which reduces the amount of steel bars used and the area of ​​steel bar processing site on the construction site, thereby saving resources and greatly reducing the burden on the environment. It is in line with the green and environmentally friendly construction advocated by the country. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a right side view of the M-shaped steel lattice embodiment (only part of the M-shaped steel lattice structure is shown in the figure).

[0032] Figure 2 It is a top view of the embodiment of the M-shaped steel lattice.

[0033] Figure 3 It is the front view of the embodiment of the reinforced shear wall skeleton structure.

[0034] Figure 4 It is a right view of an embodiment of the reinforced shear wall skeleton structure.

[0035] Figure 5 It is a top view of an embodiment of the reinforced shear wall skeleton structure.

[0036] Description of the numbers in the figure:

[0037] M-shaped steel lattice-100; steel lattice body-110; assembly hole-111; weight-reducing hole-112; curling portion-120; first folded edge-121; second folded edge-122; third folded edge-123; fourth folded edge-124; first bend-125; second bend-126; third bend-127; fourth bend-128; casting notch-129; horizontal distribution reinforcement-200; vertical reinforcement-300; hook-400. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0039] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] See also Figures 1 to 5 .

[0042] The M-shaped steel lattice 100 includes a steel lattice body 110 and curling portions 120 on both sides.

[0043] The length direction of the steel lattice main body 110 is consistent with the length direction of the curling portion 120. The curling portion 120 forms a semi-open casting groove 129 beside the steel lattice main body 110. The steel lattice main body 110 is provided with a plurality of assembly holes 111 for the horizontal distribution reinforcement 200 of the shear wall to pass through. The plurality of assembly holes 111 are spaced apart in the up-and-down direction. The middle part of the steel lattice main body 110 is provided with a plurality of weight-reducing holes 112 spaced apart in sequence in the up-and-down direction.

[0044] The curling portion 120 includes a first folded edge 121, a second folded edge 122, a third folded edge 123 and a fourth folded edge 124. There is a first bend 125 between the first folded edge 121 and the steel lattice body 110, the first folded edge 121 and the second folded edge 122 have a second bend 126, the second folded edge 122 and the third folded edge 123 have a third bend 127, and the third folded edge 123 and the fourth folded edge 124 have a fourth bend 128. The first folded edge 121, the second folded edge 122, the third folded edge 123 and the fourth folded edge 124 together form an unclosed casting groove 129. The bending angles of the first bend 125, the second bend 126, the third bend 127 and the fourth bend 128 are all 90°. The length of the first folded edge 121 is less than the length of the third folded edge 123, and the length of the second folded edge 122 is greater than the length of the fourth folded edge 124.

[0045] By mass-producing the M-shaped steel lattice 100 steel bar shear wall frame, on-site installation reduces on-site construction time and construction costs. The formed steel lattice is made of S350GD steel strip raw material, which is processed into M-shaped lattice after secondary processing.

[0046] The assembly hole 111 of the steel lattice main body 110 extends to the first folded edge 121 . After the horizontal distribution reinforcement 200 of the shear wall passes through the assembly hole 111 of the steel lattice main body 110 , the horizontal distribution reinforcement 200 abuts against the first folded edge 121 .

[0047] The reinforced shear wall skeleton structure includes multiple M-shaped steel lattices 100, multiple horizontal distribution bars 200, multiple vertical steel bars 300 and multiple hooks 400. The multiple M-shaped steel lattices 100 and the multiple vertical steel bars 300 are arranged at intervals, respectively. The multiple horizontal distribution bars 200 respectively penetrate the corresponding assembly holes 111 of the steel lattice main body 110 of all the M-shaped steel lattices 100, and the hooks 400 respectively fix the vertical steel bars 300 and the horizontal distribution bars 200.

[0048] The M-shaped steel lattice 100 is connected with the steel bars to form a shear wall force skeleton system. During on-site installation, it is transported to the construction surface by a tower crane, and the lower part of the steel bar shear wall skeleton structure is tied and connected with the reserved steel bars of the shear wall.

[0049] M-shaped steel lattice 100 is used to increase the strength and rigidity of the shear wall skeleton. Then welding is used to connect the steel bars to the formed steel lattice to form a steel lattice reinforced shear wall skeleton. This solves the problems of uneven steel bar spacing, inaccurate steel bar positioning, and skewness of the steel skeleton due to insufficient strength and rigidity caused by manual tying of steel bars on site.

[0050] The above is only one embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the principle of the present invention, and these should also be regarded as belonging to the protection scope of the present invention.

Claims

1. An M-shaped steel lattice structure, characterized by: The invention comprises an integrally formed steel lattice main body (110) and curling parts (120) on both sides, wherein the length direction of the steel lattice main body (110) is consistent with the length direction of the curling parts (120), and the curling parts (120) form a semi-open casting groove (129) beside the steel lattice main body (110). The steel lattice main body (110) is provided with a plurality of groups of assembly holes (111) for the horizontal distribution reinforcement (200) of the shear wall to pass through, and the plurality of groups of assembly holes (111) are spaced apart and distributed in the up-down direction.

2. The M-shaped steel lattice structure according to claim 1 is characterized in that: The curling portion (120) comprises a first folded edge (121), a second folded edge (122), a third folded edge (123) and a fourth folded edge (124); a first bend (125) is provided between the first folded edge (121) and the steel lattice main body (110); a second bend (126) is provided between the first folded edge (121) and the second folded edge (122); a third bend (127) is provided between the second folded edge (122) and the third folded edge (123); a fourth bend (128) is provided between the third folded edge (123) and the fourth folded edge (124); and an unclosed casting notch (129) is formed between the first folded edge (121), the second folded edge (122), the third folded edge (123) and the fourth folded edge (124).

3. The M-shaped steel lattice structure according to claim 2 is characterized in that: The bending angles of the first bend (125), the second bend (126), the third bend (127) and the fourth bend (128) are all 90°.

4. The M-shaped steel lattice structure according to claim 3 is characterized in that: The assembly hole (111) of the steel lattice main body (110) extends to the first folded edge (121), and after the horizontal distribution reinforcement (200) of the shear wall passes through the assembly hole (111) of the steel lattice main body (110), the horizontal distribution reinforcement (200) abuts against the first folded edge (121).

5. The M-shaped steel lattice structure according to claim 2 is characterized in that: The length of the first folded edge (121) is smaller than the length of the third folded edge (123), and the length of the second folded edge (122) is larger than the length of the fourth folded edge (124).

6. The M-shaped steel lattice structure according to claim 1 is characterized in that: The steel lattice main body (110) is provided with a plurality of weight-reducing holes (112) spaced in sequence along the up-down direction.

7. A reinforced shear wall skeleton structure prepared by using the M-shaped steel lattice structure as claimed in any one of claims 1 to 6, characterized in that: The invention comprises a plurality of M-shaped steel lattices (100), a plurality of horizontal distribution bars (200), a plurality of vertical steel bars (300) and a plurality of hooks (400). The plurality of M-shaped steel lattices (100) and the plurality of vertical steel bars (300) are arranged at intervals, respectively. The plurality of horizontal distribution bars (200) respectively penetrate a plurality of assembly holes (111) of a steel lattice body (110) of all the M-shaped steel lattices (100), and the hooks (400) respectively fix the vertical steel bars (300) and the horizontal distribution bars (200).

Images