Construction technology of shaped combined formwork used for shear wall at expansion joint

Abstract

The invention discloses a shaped and fabricated formwork construction process used for a shear wall at an expansion and contraction joint. The construction process includes making a shaped and fabricated formwork; setting up a common formwork by using wood boards on the other side, opposite to the expansion and contraction joint, of a wall body; arranging positioning rebars at the root of the wall body of the shear wall; hoisting the shaped and fabricated formwork to one side, facing the expansion and contraction joint, of the wall body, preliminarily positioning the shaped and fabricated formwork through the rebars, and fixedly connecting the shaped and fabricated formwork with the common formwork through a wall-penetrating screw. By the shaped and fabricated formwork construction process, the problem that the expansion and contraction joint is narrow in space and high in construction difficulty is solved; personnel only needs to hoist the shaped and fabricated formwork to the side, facing the expansion and contraction joint, of the wall face, set up the common formwork on one side of a non-contraction joint of the shear wall, perform operation on an operating face and utilize the wall-penetrating screw to fix the shaped and fabricated formwork with the common formwork, so that construction difficulty and operating risk are lowered, construction efficiency is improved, and construction cycle is shortened.

Description

technical field [0001] The invention relates to the field of construction, and more specifically relates to a construction process of a shaped composite formwork used for shear walls at expansion joints. Background technique [0002] In recent years, with the development of the economy, housing has gradually changed from frame structure to frame-shear structure, from loose to intensive. There are more and more large-scale frame-shear projects in high-rise buildings. Most of the construction of reinforced concrete shear walls is carried out with ordinary wooden boards, but the space at the expansion joints is narrow, and it is difficult to support the formwork with conventional methods, and there are certain safety hazards. At the same time, the strength of the wooden boards is insufficient, and cracks are prone to occur In severe cases, it is necessary to dismantle and re-pouring concrete, which not only increases the working hours, but also increases the cost, which directl...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the development of the economy, housing has gradually changed from frame structure to frame-shear structure, from loose to dense. There are more and more large-scale frame-shear projects in high-rise buildings. Most of the construction of reinforced concrete shear walls is carried out with ordinary wooden boards, but the space at the expansion joints is narrow, and it is difficult to support the formwork with conventional methods, and there are certain safety hazards. At the same time, the strength of the wooden boards is insufficient, and cracks are prone to occur In severe cases, it is necessary to dismantle and re-pour concrete, which not only increases the working hours and costs, but also directly affects the quality of the project and the construction period.

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