Outer framework of post-poured belt of basement exterior wall and construction method of outer framework of post-poured belt of basement exterior wall

Abstract

The invention provides an outer framework of a post-poured belt of a basement exterior wall and a construction method of the outer framework of the post-poured belt of the basement exterior wall. The outer framework is made of steel plates and composed of at least two steel plates which are sequentially jointed from top to bottom. Every two longitudinally-adjacent steel plates are fixed through welding. The steel plates are provided with hoisting holes. The outer framework is fixed through L-shaped bearing bars and linear type embedded bars. Groove treatment is conducted on the steel plates. Every two longitudinally-adjacent steel plates are welded through a groove. The construction method comprises the following installation steps that embedded bars in the post-poured belt of the basement exterior wall are installed and fixed, a wall steel plate outer framework support is set up, a scaffold platform is installed, and the outer framework is hoisted and fixed through hoisting equipment. According to the outer framework of the post-poured belt of the basement exterior wall and the construction method of the outer framework of the post-poured belt of the basement exterior wall, the design is reasonable, the construction procedures are simple, and the construction quality is easy to control; and meanwhile, by the adoption of the construction method, the waterproof construction procedure, the heat preservation construction procedure, the soil body backfilling construction procedure and other construction procedures on the outer side of the post-poured belt of the basement exterior wall are not influenced by the settling time and the construction technology of the post-poured belt of the basement exterior wall, the total construction duration is greatly shortened, the construction cost is reduced, and the project economic benefits are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to an outer formwork of a post-cast belt for a basement wall of a building and a construction method thereof. Background technique [0002] The external formwork support and installation method of the concrete post-cast belt of the basement exterior wall has always been the focus and difficulty of engineering construction, and it is also an important factor restricting the construction period. According to the retrieval of relevant research materials at home and abroad, there are currently three commonly used methods for supporting and installing the outer formwork of the concrete post-casting belt of the basement exterior wall: [0003] 1) Use multi-layer boards as the bottom plate, use square wood as the back rib, and use a combination of double steel pipes, butterfly clips, and pull bolts as the load-bearing enclosure structure to form a wooden formwo...

AI Technical Summary

Problems solved by technology

[0006] Among them, the first method and the third method have the disadvantage that the support and installation of the formwork of the post-casting belt must be implemented after the settlement period required by the design expires, which has a great impact on the construction of the process outside the post-casting belt of the wall; the second method The method has the disadvantage that the construction of the peripheral construction process of the basement wall can only be carried out after the overall strength of the wall reaches the design requirements after the blocks are built, and it also has the disadvantage of greatly affecting the overall construction period of the building.

At the same time, the above three methods have common defects: the construction of the post-casting belt on the basement exterior wall cannot be completely isolated from the construction of waterproofing, external insulation, and soil backfilling outside the post-casting belt, and the construction of the outer process is affected by the construction of the post-casting belt. severe constraints

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