CN204590605U - Building steel door and window hole large form - Google Patents

Abstract

The patent name of the utility model is: large template for building steel door and window openings, a new type of template for walls and door and window openings in the field of construction, which solves the problems that the shear wall door and window opening templates are not easy to fix, and the structural door and window openings are easy to deform. Reduce the secondary chiseling caused by the deformation of the door and window openings, and improve the construction quality of the shear wall structure. The new formwork system is through the modification of the all-steel large formwork, opening the opening of the large formwork, and at the same time sealing the four sides of the opening with steel side molds to form the opening of the all-steel formwork, so that the deformation of the formwork and the position of the opening can be guaranteed.

Description

Large formwork for building steel door and window openings

technical field

The utility model relates to a novel formwork for walls and openings of doors and windows in the field of building construction.

Background technique

At present, all-steel large formwork is widely used. In engineering, the traditional wooden inner formwork at the door and window openings is prone to mold runout, deformation, and poor quality of concrete forming at the inner and outer corners. Correspondingly increased, the quality of concrete molding can not be guaranteed. In this context, large templates for building steel doors and windows came into being.

Contents of the invention

The purpose of this utility model is to design a formwork system that replaces the built-in wooden formwork at the door and window openings, effectively solve the problems of poor concrete molding quality at the door and window openings, and has the advantages of good construction quality, fast speed, and strong turnover capacity. The formwork system is mainly composed of flat formwork, angle formwork, beam formwork, side formwork, and hole formwork. The interconnection methods include lap joints, bolt connections, special connector connections, and snap-in connections to make it a whole. . The door and window openings use steel plates as side forms and are connected by bolts. The forms on both sides of the wall columns are fixed by three rows of bolts, so that the inside of the formwork becomes a closed whole, and finally the concrete pouring of each part of the wall is carried out.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the utility model in use.

Fig. 2 is a schematic diagram of the steel side plate of the large formwork opening of the building steel door and window opening.

The large formwork for building steel doors and windows is composed of the following components: 1: Outrigger; 2: Flat form; 3: 6mm thick steel plate; 4: 8# channel steel; 5: 10# channel steel; 6: Wall bolts; 7: Bolt; 8: 8mm thick steel side plate; 9: ventilation holes.

specific implementation plan

The large formwork for openings of building steel doors and windows is suitable for high-rise and super high-rise frame shear wall structures and concrete construction at openings of shear wall structures.

Below, in conjunction with Fig. 1, Fig. 2, process principle of the present invention is made concrete description:

Firstly, use the lifting equipment to place the inner wall corner formwork in place, and then hoist the inner wall flat formwork ② and install it. The joints between the flat formwork and the flat formwork and the angle formwork are overlapped. The panel of the flat form ② is made of 6mm steel plate ③, the vertical rib is made of 8# channel steel ④, the horizontal back of the formwork is made of two-way 10# channel steel ⑤, and the wall bolt ⑥ passes through the gap between the two channel steels.

Secondly, according to the same construction method, install the external wall corner formwork and the external wall flat formwork ② respectively. In order to ensure the accuracy of door and window formwork installation, the formwork after installation should be reinforced and corrected.

Then, install the formwork at the opening of the door and window. The 8mm steel side plate ⑧ is used as the side formwork at the opening of the door and window, and the bolt ⑦ is used to connect the formwork on both sides of the wall column. .

Finally, before the final setting of the concrete is poured, the screw and bolts are loosened, and the formwork can be removed when the concrete strength reaches 1.2Mpa.

In a word, the utility model has the advantages of simple structure, fast construction speed, can greatly improve the quality of concrete forming, reduce construction cost, and save labor and labor. Available for promotion.

Claims (4)

1. A large formwork for building steel door and window openings, including steel flat formwork and opening steel side plates, is characterized in that, comprising Steel flat formwork is used for concrete construction of building shear walls. There is a steel flat formwork on both sides of the wall, which is fixed by bolts. The hole is opened on the formwork. Composition, the steel plate and the secondary keel channel steel are fixed by welding, and the main keel channel steel is fixed by bolts, the outrigger and the flat formwork are fixed by bolts, and the height of the outrigger can be adjusted; Opening steel side plate, used for the concrete construction of building shear wall door and window openings, the side plate is steel plate, three bolt holes are opened on each side of the side plate along the long side, and the side plate is connected with the pre-welded angle steel on the steel flat formwork by bolts The connection is fixed, the length of the side plate is the same as the width or height of the opening, and the width of the side plate is the sum of the width of the two angle steels and the wall thickness. 2. The large formwork for building steel door and window openings according to claim 1 is characterized in that: the steel flat formwork is opened at the opening, the size of the opening is the same as the size of the opening, and the lengthwise direction of each edge of the opening is the same as that of the opening. Weld the angles and make three bolt holes in each angle. 3. The large formwork for building steel door and window openings according to claim 1, characterized in that: the outer peripheral shape and length of the opening steel side plates are the same as the shape and length of the opening, and the width is between the width of two angle steels and the thickness of the wall. And, each side plate is secured by three bolts per side. 4. The large formwork for building steel door and window openings according to claim 1 is characterized in that: the steel side plate on the lower side of the window opening is perforated to prevent the air from being discharged from the formwork at the lower side of the window opening when pouring concrete. Due to the internal air pressure, the concrete cannot be poured and filled, resulting in common quality problems such as holes and leaking reinforcement.