Opposite-pull screw device for steel plate concrete shear wall body tie bars

Abstract

The utility model discloses a steel plate concrete shear wall body tie bar dual-purpose opposite-pull screw device which comprises a steel plate, a first sleeve is arranged in the steel plate in advance, the two ends of the first sleeve are respectively connected with a wall body tie bar, each wall body tie bar is provided with an end plate and a positioning jacking nut, and the positioning jacking nuts are arranged on the end plates. A second sleeve is arranged at the end, away from the steel plate, of each wall tie bar, and the wall tie bars are detachably connected with formwork fixing screws through the second sleeves. The steel plate concrete shear wall body tie bar dual-purpose opposite-pull screw device has the advantages of being convenient to assemble and disassemble, and avoiding on-site perforation arrangement of opposite-pull screws.

Description

Technical Field

[0001] The utility model belongs to the technical field of building engineering, and in particular relates to a steel plate concrete shear wall tie reinforcement and tension screw device. Background Art

[0002] Shear walls are widely used in high-rise buildings under construction or planned in my country and even in the world. As the height continues to increase, the thickness of the lower shear wall becomes thicker and thicker. In order to reduce the wall thickness and ensure sufficient bearing capacity and ductility, the use of steel plate concrete shear walls is becoming more and more common in structural design. During the construction of steel plate concrete shear walls, tie screws are used to fix the formwork. It is necessary to open holes in the steel plate in the shear wall to allow the tie screws to pass through. The large number of holes in the steel plate affects the bearing capacity and ductility of the steel plate concrete shear wall; and before on-site pouring, the position of the tie screws needs to be adjusted by perforating and fixing. After pouring, the tie screws need to be rotated and removed. There are many construction processes, which affects the construction progress. As the floor changes, the thickness of the steel plate concrete shear wall also changes, and the length and size of the tie screws also need to be changed and adjusted accordingly, which makes it difficult to achieve modularization, further reducing efficiency.

[0003] In order to avoid steel plate perforation during the construction of steel plate concrete shear wall, reduce on-site construction procedures, improve construction efficiency, and realize the modularization of tension screws to adapt to steel plate concrete shear walls of different thicknesses, a tension screw device for steel plate concrete shear wall tie bars is proposed. Utility Model Content

[0004] The utility model aims to provide a steel plate concrete shear wall tie reinforcement and tension screw device, so as to solve the above problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A steel plate concrete shear wall wall tie bar and tension screw device, comprising a steel plate, a first sleeve preset in the steel plate, two ends of the first sleeve are respectively connected to a wall tie bar, each of the wall tie bars is provided with an end plate and a positioning and tightening nut, and a second sleeve is provided at one end of each wall tie bar away from the steel plate and is detachably connected to a template fixing screw through the second sleeve.

[0007] The working process and principle of the above structure are as follows:

[0008] The wall tie bars are connected to the steel plate through the first sleeve, and an end plate and a positioning jack nut are set at the other end of the wall tie bars. The end plate and the wall tie bars are plug welded. The selected end plate thickness is the same as the thickness of the protective layer of the steel plate concrete shear wall. The steel plate and the wall are fixed and positioned according to the thickness. After the steel bar binding of the steel plate concrete shear wall is completed, the positioning jack nut is tightened to tighten the tie bars and the end plate. The second sleeve is used to connect the formwork fixing screws with the wall tie bars to fix the entire shear wall formwork system. After the concrete pouring of the steel plate concrete shear wall reaches the strength, the second sleeve is used to remove the formwork fixing screws, take out the formwork, and cut off the protruding wall tie bars.

[0009] Furthermore, the end plate is welded to the wall tie bar, both ends of the wall tie bar are provided with external threads, and the positioning and tightening nut is connected to the wall tie bar through threads.

[0010] The wall tie bars are tied to the outer steel mesh of the steel plate concrete shear wall by using the end plates of the tie bars and the positioning nuts.

[0011] Furthermore, the first sleeve and the second sleeve are both provided with internal threads, and the first sleeve and the second sleeve are respectively connected to two ends of the wall tie bars through threads.

[0012] The first sleeve and the second sleeve are provided with internal threads to facilitate connection with the wall tie bars.

[0013] Furthermore, the template fixing screw is detachably connected to the second sleeve via threads, and a template fixing plate is provided on the template fixing screw.

[0014] The template fixing screw is detachably connected to the second sleeve to facilitate subsequent removal, and the template fixing plate is used to fasten and fix the template.

[0015] Furthermore, at least three tie steel bars are evenly distributed on the end plate around the circumference of the wall tie bars.

[0016] The setting of tie steel bars is used to ensure the effective tie between the shear wall reinforcement mesh and the wall tie bars.

[0017] Beneficial effects: The utility model uses a tie bar and a tension screw device for the steel plate concrete shear wall to avoid perforation of the steel plate, reduce on-site construction procedures, realize modular design of the tie screws, and can adapt to steel plate concrete shear walls of different thicknesses; the length of the template fixing screw is fixed and will not change due to changes in wall thickness, thus realizing modularization; the wall tie bar and a tension screw are used, and the tie bar and the steel plate are connected by a sleeve, thus avoiding perforation of the steel plate; the tie bar and a tension screw part are positioned and processed in the factory, and the end plate position is also determined according to the wall thickness, thus avoiding on-site perforation arrangements of the tie screws, and adjusting the tie screw positions and template positions, and the shear wall steel mesh positions and other procedures; utilizing the fixed length of the template fixing screw at the outer end of the template, a sleeve is used to connect it to the wall tie bar, which is convenient for installation and disassembly, and it can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the application of the tension screw device in the utility model;

[0020] Figure 3 It is a schematic diagram of the process of detaching the template fixing screw in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure after the template fixing screw is removed in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the middle end plate of the utility model.

[0023] Figure numerals: 1. steel plate; 2. first sleeve; 3. wall tie bar; 4. end plate; 5. positioning and tightening nut; 6. second sleeve; 7. formwork fixing screw; 8. formwork fixing plate; 9. tie steel bar. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0025] Example:

[0026] like Figure 1-Figure 4As shown, this embodiment provides a steel plate 1 concrete shear wall wall tie bar 3 dual-purpose tension screw device, including a steel plate 1, a first sleeve 2 preset in the steel plate 1, a wall tie bar 3 is connected to both ends of the first sleeve 2, each wall tie bar 3 is provided with an end plate 4 and a positioning tightening nut 5, and each wall tie bar 3 is provided with a second sleeve 6 at the end away from the steel plate 1 and is detachably connected to a template fixing screw 7 through the second sleeve 6.

[0027] The working process and principle of the above structure are as follows:

[0028] The wall tie bar 3 is connected to the steel plate 1 through the first sleeve 2. At the same time, an end plate 4 and a positioning tightening nut 5 are set at the other end of the wall tie bar 3. The end plate 4 and the wall tie bar 3 are plug-welded. The thickness of the selected end plate 4 is the same as the thickness of the protective layer of the steel plate 1 concrete shear wall. The steel plate 1 and the wall are fixed and positioned according to the thickness of the wall. After the steel bar binding of the steel plate 1 concrete shear wall is completed, the positioning tightening nut 5 is tightened and tied with the end plate 4. The second sleeve 6 is used to connect the formwork fixing screw 7 with the wall tie bar 3 to fix the entire shear wall formwork system. After the concrete pouring of the steel plate 1 concrete shear wall reaches the strength, the second sleeve 6 is used to dismantle the formwork fixing screw 7, take out the formwork, and cut off the protruding wall tie bar 3.

[0029] In another embodiment of the present invention, Figure 1-Figure 4 As shown, the end plate 4 is welded to the wall tie bar 3, both ends of the wall tie bar 3 are provided with external threads, and the positioning and tightening nut 5 is connected to the wall tie bar 3 through threads.

[0030] The wall tie bars 3 are tied to the steel plate 1 and the outer steel mesh of the concrete shear wall by using the end plates 4 and the positioning and tightening nuts 5 of the tie bars.

[0031] In another embodiment of the present invention, Figure 1 and Figure 2 As shown, the first sleeve 2 and the second sleeve 6 are both provided with internal threads, and the first sleeve 2 and the second sleeve 6 are respectively connected to the two ends of the wall tie bar 3 through threads.

[0032] The first sleeve 2 and the second sleeve 6 are provided with internal threads to facilitate connection with the wall tie bars 3 .

[0033] In another embodiment of the present invention, Figure 1-Figure 4 As shown, the template fixing screw 7 is detachably connected to the second sleeve 6 through a thread, and a template fixing plate 8 is arranged on the template fixing screw 7. The template fixing plate 8 is a conical disc structure, and the template fixing plate 8 is fixed and locked with the template fixing screw 7.

[0034] The template fixing screw 7 is detachably connected to the second sleeve 6 to facilitate subsequent removal, and the template fixing plate 8 is used to fasten and fix the template.

[0035] In another fact of the present invention, if Figure 5 As shown, at least three tie steel bars 9 are evenly distributed around the circumference of the wall tie bars 3 on the end plate 4 .

[0036] The arrangement of the tie steel bar limbs 9 is used to ensure that the shear wall reinforcement mesh and the wall tie bars 3 are effectively tied.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel plate concrete shear wall tie bar and tension screw device, comprising a steel plate, characterized in that: A first sleeve is preset in the steel plate, and both ends of the first sleeve are respectively connected to a wall tie bar, each of the wall tie bars is provided with an end plate and a positioning tightening nut, and a second sleeve is provided at one end of each wall tie bar away from the steel plate and is detachably connected to a template fixing screw through the second sleeve.

2. The steel plate concrete shear wall tie bar and tension screw device according to claim 1, characterized in that: The end plate is welded to the wall tie bar, both ends of the wall tie bar are provided with external threads, and the positioning and tightening nut is connected to the wall tie bar through threads.

3. The steel plate concrete shear wall tie bar and tension screw device according to claim 2, characterized in that: Internal threads are arranged in the first sleeve and the second sleeve, and the first sleeve and the second sleeve are respectively connected to two ends of the wall tie bars through threads.

4. The steel plate concrete shear wall tie bar and tension screw device according to claim 3, characterized in that: The template fixing screw is detachably connected to the second sleeve via threads, and a template fixing plate is arranged on the template fixing screw.

5. The steel plate concrete shear wall tie bar and tension screw device according to claim 1, characterized in that: At least three tie steel bars are evenly distributed on the end plate around the circumference of the wall tie bars.

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