CN204703499U - Wall of High-building deformation joint template - Google Patents

Abstract

The utility model discloses a template for deformation joints of a shear wall of a high-rise building, which comprises a steel pipe keel frame and a plurality of bamboo rubber plates fixed on one side plane of the steel pipe keel frame, and the steel pipe keel frame is composed of vertical and horizontal square steel pipes Grid-like structure, the splicing joints of adjacent bamboo plywood correspond to the vertical and horizontal square steel pipe positions. The inner mold of the deformation joint of the utility model adopts a large template combined with steel and wood, which greatly improves the overall rigidity and strength of the template, and the deformation of the template is small, and the quality of concrete forming is good.

Description

Formwork for deformation joints of shear walls in high-rise buildings

technical field

The utility model relates to building construction technology, in particular to the construction of deformation joints in shear walls of high-rise buildings.

Background technique

With the acceleration of the urbanization process, the shape of the building is becoming more and more complex and the volume is getting bigger and bigger. In order to ensure the safe use of the building, many buildings are often designed with deformation joints such as expansion joints, seismic joints, and settlement joints. For buildings with high-rise shear wall structures, due to the narrow deformation joints, it is very difficult to support the formwork on the inner side of the post-cast wall at the deformation joints. In the past, foam boards or wooden squares in the joints were often used to reinforce the formwork during construction, which is very easy. The deformation of the drum mold in the seam, the inability to remove the formwork in the seam, etc., caused problems such as wrong platform on the shear wall, poor molding quality, and inconsistent size, which greatly reduced the effect of the deformation seam and seriously affected the normal and safe use of the building. Therefore, the quality control of the post-cast shear wall at the expansion joint has become a major construction difficulty.

Utility model content

The technical problem to be solved by the utility model is to provide a formwork at the deformation joint of the shear wall of a high-rise building, which is convenient for post-cast shear wall construction at the expansion joint.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the formwork at the deformation joint of the shear wall of a high-rise building includes a steel pipe keel frame and several pieces of bamboo rubber plates fixed on one side plane of the steel pipe keel frame, and the steel pipe keel frame The grid-like structure is composed of vertical and horizontal square steel pipes, and the joints of adjacent bamboo plywood correspond to the positions of the vertical and horizontal square steel pipes.

Preferably, the vertical and horizontal square steel pipes are 50×50×4mm square steel pipes, the vertical distance between two adjacent horizontal square steel pipes is 400mm, and the horizontal distance between two adjacent vertical square steel pipes is 450mm.

Preferably, the bamboo plywood and the square steel pipe are connected by long screws.

Preferably, the upper part of the steel pipe keel frame is provided with a hook.

The inner mold of the deformation joint of the utility model adopts a large template combined with steel and wood, which greatly improves the overall rigidity and strength of the template, has small deformation of the template, and has good quality of concrete forming. The turnover rate of the formwork is improved, material cost and labor are saved, and the installation and disassembly of the tower crane is easy to operate, which speeds up the construction efficiency. There is no need for personnel to operate inside the deformation joint, and the construction is simple and easy to master.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the structural representation of inner formwork;

Fig. 2 is a sectional view of the inner formwork;

Fig. 3 is the overall structure diagram of the utility model.

Detailed ways

The utility model is suitable for post-cast wall or column formwork construction at deformation joints (settlement joints, anti-seismic joints and expansion joints with a width greater than 100mm) of high-rise shear walls or frame structures.

Below in conjunction with Fig. 1 to Fig. 3, the embodiment of the present utility model is specifically described, the formwork support and reinforcement system at the deformation joint of the shear wall of a high-rise building includes an inner formwork 1 and an outer formwork 2, and the inner formwork 1 is located at the poured concrete On one side of the wall, the outer formwork 2 is supported on the poured concrete floor 4. The outer formwork 2 is a double-layer composite structure composed of an inner bamboo plywood 22 and an outer wooden board 21. The poured concrete floor 4 and the poured concrete wall A partition 41 is provided between them, and a wooden frame support 42 is arranged in the partition 41, and the wooden frame support 42 is supported by a pull screw 44, and the bottom of the inner formwork 1 is supported on the wooden frame support 42. The wooden frame support 42 is squeezed tightly by the wedge-shaped wooden frame 43, and a support block 45 is provided between the inner formwork 1 and the outer formwork 2 for support, and the inner formwork 1 and the outer formwork 2 are fastened by the tension bolts 3.

Wherein, as shown in Fig. 1 and Fig. 2, the inner formwork 1 includes a steel pipe keel frame 11 and several pieces of outer bamboo rubber sheets 12 fixed on the outer plane of the steel pipe keel frame 11, and the steel pipe keel frame 11 consists of vertical and horizontal The square steel pipes 111 form a grid structure, and the splicing seams of adjacent outer bamboo plywood sheets 12 correspond to the positions of the vertical and horizontal square steel pipes 111 . Both vertical and horizontal square steel pipes 111 are 50×50×4mm square steel pipes, the vertical distance between two adjacent horizontal square steel pipes is 400mm, and the horizontal distance between two adjacent vertical square steel pipes is 450mm. The outer bamboo plywood 12 is connected with the square steel pipe by a long screw 13, and the long screw 13 passes through the upper bolt hole 112 of the square steel pipe, and the steel pipe keel frame 11 top is provided with a suspension hook 14. The formwork combined with steel and wood can effectively guarantee the overall rigidity and strength of the formwork. At the same time, the upper part is equipped with a hook, which is convenient for tower crane auxiliary hoisting, installation and disassembly.

As shown in FIG. 3 , the pull bolt 3 includes a screw rod 31, an inner nut 33, and an outer nut 38. The inner nut 33 is welded on a steel backing plate 32, and the steel backing plate 32 is welded to the side of the inner formwork 1. On the steel pipe, the inner end of the screw rod 31 is threadedly connected with the inner nut 33 . The outer end of the screw 31 passes through the outer template 2, and the outer end of the screw 31 is connected with an M-shaped compression head 36, and a compression steel pipe 37 is arranged between the compression head 36 and the outer plane of the outer template 2. The compression steel pipe 37 is located in the groove of the compression head 36 , and the compression head 36 is compressed by the outer nut 38 . The screw 31 is covered with a PVC sleeve 34 between the inner formwork 1 and the outer formwork 2 .

The screw 31 is covered with an elastic rubber washer 35 on the outside of the inner formwork 1 and the inner side of the outer formwork 2 to prevent the concrete from leaking and bonding the screw 31 . The support block 45 is a finished fine stone concrete support block, and it should be ensured that sufficient support blocks 45 are provided at the part above 300 mm above the bottom of the formwork during reinforcement.

Claims (4)

1. The formwork at the deformation joint of the shear wall of a high-rise building is characterized in that: it comprises a steel pipe keel frame and several pieces of bamboo plywood fixed on one side plane of the steel pipe keel frame, and the steel pipe keel frame is composed of vertical and horizontal square steel pipes. The lattice structure, the joints of adjacent bamboo plywood correspond to the vertical and horizontal square steel pipe positions. 2. The formwork for deformation joints of high-rise building shear walls according to claim 1, characterized in that: the vertical and horizontal square steel pipes are 50×50×4mm square steel pipes, and the longitudinal distance between two adjacent horizontal square steel pipes is 400mm, and the transverse distance between two adjacent longitudinal square steel pipes is 450mm. 3. The formwork for deformation joints of high-rise building shear walls according to claim 1, characterized in that: said bamboo plywood and square steel pipes are connected by long screws. 4. The formwork for deformation joints of high-rise building shear walls according to claim 1, characterized in that: the upper part of the steel pipe keel frame is provided with a hook.