Prefabricated wall concrete door and window frame and construction method

Abstract

The invention relates to a prefabricated wall concrete door and window frame and a construction method. In existing prefabricated concrete wall manufacturing, the template is large in amortizing amount, when a laminating plate type concrete wall is manufactured, the wall is poor in integrity, and the strength cannot meets transportation and hoisting requirements. The prefabricated wall concrete door and window frame comprises a prefabricated concrete door and window frame body (1), the prefabricated concrete door and window frame body is a straight strip plate spliced in a square box shape or an integral square box shape, an outward extending tie bar (2) is installed at the outer side of the straight strip plate or at the periphery of the integral square box, and the outward extending tie bar extends into wall bodies (3) of all sides of windows and doors. The construction method is used for the prefabricated wall concrete door and window frame.

Description

Technical field: [0001] The invention relates to the field of prefabricated buildings, in particular to a prefabricated wall concrete door and window frame and a construction method. Background technique: [0002] Existing prefabricated concrete wall production, formwork amortization sales are large, and the composite plate concrete wall is produced, the wall integrity is poor, and the strength is difficult to meet the requirements of transportation and hoisting. At present, in the field of prefabricated buildings in my country, in order to ensure the quality of prefabricated walls and improve the recycling rate of molds, the molds have high requirements in the production process, especially the door and window molds, which need to be considered to be easy to disassemble and accurate in size. The door and window molds need to be assembled in pieces. High-cost lightweight high-strength molds are used; at the same time, mold support needs to be considered, and the door and wind...

AI Technical Summary

Problems solved by technology

[0002] Existing prefabricated concrete wall production, the formwork amortization is large, and the composite plate concrete wall is made, the wall integrity is poor, and the strength is difficult to meet the requirements of transportation and hoisting

At present, in the field of prefabricated buildings in my country, in order to ensure the quality of prefabricated walls and improve the recycling rate of molds, the molds have high requirements in the production process, especially the door and window molds, which need to be considered to be easy to disassemble and accurate in size. The door and window molds need to be assembled in pieces. High-cost lightweight high-strength molds are used; at the same time, mold support needs to be considered, and the door and window mold scheme is complicated. After the prefabrication of the laminated slab concrete wall is completed, the two layers of precast concrete thin slabs are connected by lattice steel bars to prevent the wall from being hoisted. Damaged during transportation and transportation, the requirements for the strength of lattice steel bars are relatively high, and the cost of steel bars is relatively high. After the installation of the laminated slab concrete wall is completed, the formwork needs to be supported again at the position of the door and window before the concrete is poured, and the process is complicated.

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