Wood combined large formwork for narrow deformation joint

Abstract

The embodiment of the invention discloses a wood combined large formwork for a narrow deformation joint, which comprises plywood, battens, twisted steel bars, first opposite-pull screws, butterfly buckles, pressing rods and hanging rings, a plurality of battens are arranged on the plywood, the twisted steel bars are arranged on the battens, the butterfly buckles are arranged on two adjacent twisted steel bars, the first opposite-pull screws are arranged between the butterfly buckles, and the pressing rods are arranged on the opposite-pull screws. According to the template installation and reinforcement device, the problem that a template cannot be normally installed and reinforced due to the fact that no operation space exists for personnel is solved, and therefore the construction efficiency can be improved, the cost can be saved, and the construction quality can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a large wooden combined formwork used for narrow deformation joints. Background Art

[0002] Expansion joints are a type of isolation zone installed inside a concrete structure that can divide the concrete so that the predetermined stress can be released between the concrete surfaces, thereby preventing the concrete from cracking. Expansion joints can also relieve the stress caused by foundation settlement and prevent concrete from breaking due to foundation settlement. According to building design specifications and on-site construction experience, the concrete on both sides of the expansion joint should be poured separately and not together. This is because the function of the expansion joint requires the concrete on both sides to be able to expand and contract freely. If poured together, there will be no separation of the expansion joint between the concrete on both sides, and the function of the expansion joint will be lost. When carrying out concrete construction, the concrete on both sides of the expansion joint should be poured separately in strict accordance with the design requirements to ensure the construction quality and safety of the project. However, the template installation and reinforcement cannot be carried out normally on both sides of the expansion joint shear wall because there is no operating space for personnel. Summary of the invention

[0003] The purpose of the present invention is to solve the problems raised in the above-mentioned background technology. The present invention provides a large wooden combined formwork for narrow deformation joints, which solves the problem that personnel have no operating space and cannot install and reinforce the formwork normally, thereby improving construction efficiency, saving costs and ensuring construction quality.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] It includes plywood, wooden squares, threaded steel bars, a tension screw rod, a butterfly buckle, a pressure rod and a lifting ring. Multiple wooden squares are installed on the plywood. The threaded steel bars are installed on the wooden squares. Butterfly buckles are installed on two adjacent threaded steel bars. A tension screw rod is installed in the middle of the butterfly buckles. The head of the lifting ring is pressed on the pressure rod. The butterfly buckle tightens the pressure rod. The butterfly buckle that tightens the pressure rod is fixed to the wooden square at the top.

[0006] Preferably, steel plates are used instead of plywood.

[0007] Preferably, the wooden beams include transverse wooden beams located at the top and the bottom and vertical wooden beams connecting the two transverse wooden beams, and the pressure rod is fastened to the transverse wooden beam at the top.

[0008] Preferably, the lifting ring comprises two straight portions and an annular portion, the two ends of the annular portion are connected to the two straight portions, and one end of the two straight portions located in the annular portion is pressed on two parallel pressure rods.

[0009] Preferably, the tension screw rod 1 includes a support plate and a screw rod, the middle of the support plate is provided with a screw rod, the screw rod passes through the middle of the butterfly buckle, and the bottom of the screw rod is connected to the plywood or wooden square.

[0010] Preferably, the straight portion of the lifting ring is welded to the threaded steel bar, and two lifting rings are provided, and the two lifting rings are parallel.

[0011] Preferably, multiple groups of threaded steel bars are provided, each group of threaded steel bars is provided with two parallel threaded steel bars, the two threaded steel bars in each group are connected by multiple butterfly buckles, some of the butterfly buckles are connected to the two threaded steel bars by welding, and some of the butterfly buckles are connected to the plywood by a tension screw.

[0012] Preferably, the annular portion of the hanging ring is located at the upper end of the top horizontal wooden square.

[0013] Beneficial effects:

[0014] The present invention uses a tower crane to lift the large wooden composite template to the deformation joint for rapid installation, and personnel can normally install the template on the other side of the shear wall and quickly reinforce it, which can not only solve the construction technical problems, but also improve the construction efficiency and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a tension screw rod according to an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of a tension screw rod according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] As shown in the figure, an embodiment of the present invention discloses a large wooden composite formwork for narrow deformation joints, including plywood 1, wooden squares 2, threaded steel bars 3, tension screws 4, butterfly buckles 5, pressure rods 6 and lifting rings 7. Multiple wooden squares 2 are installed on the plywood 1, threaded steel bars 3 are installed on the wooden squares 2, butterfly buckles 5 are installed on two adjacent threaded steel bars 3, tension screws 4 are installed in the middle of the butterfly buckles 5, the heads of the lifting rings 7 are pressed on the pressure rods 6, the butterfly buckles 5 tighten the pressure rods 6, and the butterfly buckles 5 that tighten the pressure rods 6 are fixed to the wooden squares 2 at the top.

[0021] The wood square is 40×90mm, the plywood thickness is 15mm, the threaded steel bar diameter is C18mm, and the material of the lifting ring is A16mm round steel.

[0022] First, according to the height of the shear wall at the deformation joint, the plywood is assembled in sections, and then the screw holes are drilled on the plywood, with a spacing of 500*500mm. Then, wooden squares are arranged on the plywood as the secondary beam of the formwork system. Threaded steel bars with a diameter of C18mm are installed as the main beam of the formwork system. Butterfly buckles are installed on the tension screws with support plates to tighten the combined large formwork system. Then, the butterfly buckles are welded to the threaded steel bars with a diameter of C18mm on the secondary beam at the tension screw holes, and the templates on both sides of the formwork system are tightened by the tension screws. Finally, two lifting rings are installed and welded on the secondary beam. The design of the lifting rings is convenient for lifting and use. The combined large formwork has a simple structure and can be reused. It can be quickly moved to other areas on a limited working surface for installation through a tower crane. The installation operator installs the template on the other side according to the normal process, and then the reinforcement work can be completed by inserting the tension screws.

[0023] In one embodiment of the present invention, steel plates are used to replace plywood. Specific materials can be used as needed. The steel plates can enhance the rigidity of the formwork system and increase the number of repeated uses.

[0024] In one embodiment of the present invention, the wood beams 2 include horizontal wood beams at the top and bottom and vertical wood beams connecting the two horizontal wood beams, and the horizontal wood beams and the vertical wood beams are both wood beams, but at different positions. The pressure rod 6 is fastened to the horizontal wood beam at the top.

[0025] In one embodiment of the present invention, the lifting ring 7 includes two straight portions 71 and an annular portion 72, the two ends of the annular portion 72 are connected to the two straight portions 71, and one end of the two straight portions located at the annular portion is pressed on two parallel pressure rods 6. The lifting ring 7 itself can also be a steel bar, and the strength of the steel bar is sufficient.

[0026] In one embodiment of the present invention, Figure 2 and Figure 3As shown, the tension screw rod 4 includes a support plate 41 and a screw rod 42. The middle of the support plate 41 is provided with a screw rod 42, which passes through the middle of the butterfly buckle 5, and the bottom of the screw rod 42 is connected to the plywood or wood. The tension screw rod 4 is used to fasten the butterfly buckle, wherein the support plate 41 is pressed on the butterfly buckle, and the screw rod 42 passes through the butterfly buckle.

[0027] In one embodiment of the present invention, the straight portion 71 of the lifting ring is welded to the threaded steel bar 3, and two lifting rings are provided, and the two lifting rings are parallel to each other. The two lifting rings make the lifting stable.

[0028] In one embodiment of the present invention, a plurality of groups of threaded steel bars 3 are provided, each group of threaded steel bars 3 is provided with two parallel threaded steel bars, the two threaded steel bars in each group are connected by a plurality of butterfly buckles 5, some of the butterfly buckles 5 are connected to the two threaded steel bars by welding, and some of the butterfly buckles 5 are connected to the plywood 1 by a tension screw 4.

[0029] In one embodiment of the present invention, the annular portion 72 of the lifting ring is located at the upper end of the top horizontal wood square. The present invention uses a tower crane to lift the large wooden composite template to the deformation joint for rapid installation, and personnel can normally install the template on the other side of the shear wall and quickly reinforce it, which can not only solve the construction technical problems, but also improve the construction efficiency and save costs.

[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A large wooden composite formwork for narrow deformation joints, characterized in that: It includes plywood, wooden squares, threaded steel bars, a tension screw rod, a butterfly buckle, a pressure rod and a lifting ring. Multiple wooden squares are installed on the plywood. The threaded steel bars are installed on the wooden squares. Butterfly buckles are installed on two adjacent threaded steel bars. A tension screw rod is installed in the middle of the butterfly buckles. The head of the lifting ring is pressed on the pressure rod. The butterfly buckle tightens the pressure rod. The butterfly buckle that tightens the pressure rod is fixed to the wooden square at the top.

2. A large wooden composite formwork for narrow deformation joints according to claim 1, characterized in that: Use steel sheets instead of plywood.

3. The large wooden composite formwork for narrow deformation joints according to claim 1 is characterized in that: The wooden beams include horizontal wooden beams located at the top and the bottom and vertical wooden beams connecting the two horizontal wooden beams, and the compression rod is fastened to the horizontal wooden beam at the top.

4. The large wooden composite formwork for narrow deformation joints according to claim 3 is characterized in that: The lifting ring comprises two straight parts and an annular part, two ends of the annular part are connected to the two straight parts, and one end of the two straight parts located on the annular part is pressed on two parallel pressure rods.

5. The large wooden composite formwork for narrow deformation joints according to claim 1 is characterized in that: The tension screw rod 1 comprises a support plate and a screw rod. The middle of the support plate is provided with a screw rod, the screw rod passes through the middle of the butterfly buckle, and the bottom of the screw rod is connected with the plywood or the wooden square.

6. The large wooden composite formwork for narrow deformation joints according to claim 4, characterized in that: The straight part of the lifting ring is welded to the threaded steel bar, and there are two lifting rings, which are parallel.

7. The large wooden composite formwork for narrow deformation joints according to claim 1 is characterized in that: There are multiple groups of threaded steel bars, each group of which is provided with two parallel threaded steel bars, and the two threaded steel bars in each group are connected by multiple butterfly buckles, some of the butterfly buckles are connected to the two threaded steel bars by welding, and some of the butterfly buckles are connected to the plywood by a tension screw.

8. The large wooden composite formwork for narrow deformation joints according to claim 4, characterized in that: The ring portion of the lifting ring is located at the upper end of the horizontal wooden square at the top.

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