Concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and shear wall

Abstract

The invention relates to a concrete spray steel mesh sandwich formwork cast-in-place shear wall construction method and a shear wall manufactured by using the method. The construction method comprises the following steps: (1) mounting matched inner and outer steel mesh sandwich light plates on the preserved formwork positions; (2) spraying concrete on site on the inner side surface of the inner steel mesh sandwich light plate and the outer side surface of the outer steel mesh sandwich light plate; and (3) and casting concrete in place between the inner and outer steel mesh sandwich light plates. The shear wall is provided with the inner and outer steel mesh sandwich light plates; a middle concrete layer is cast between the inner and outer sandwich light plates; and inner and outer side surface concrete layers are sprayed on the outer side surface of the outer sandwich light plate and the inner side surface of the inner sandwich light plate respectively. By adopting the method in the invention, integration of formwork, insulation and structure is realized, the construction speed is obviously improved, the service life of wall, particularly insulation layer, is obviously prolonged, and the capability of the wall resisting shear force is obviously improved.

Description

technical field [0001] The invention relates to a construction method of a cast-in-place shear wall, in particular to a construction method of a cast-in-place shear wall which is sprayed on-site with concrete on a steel mesh sandwich light board and is not dismantled after construction. The cast-in-place shear wall made by this method. Background technique [0002] The existing construction method of cast-in-place shear walls is usually to first fix the finished formwork made of steel, etc., and then pour concrete into the cavity surrounded by the formwork to form the wall. After the wall reaches a certain strength requirement, it is removed. template. This construction method requires a large amount of auxiliary construction and long hours of auxiliary work. For the external wall, additional external wall insulation construction is required. Usually, the external thermal insulation method of pasting polystyrene board thermal insulation and thin plastering on the external s...

AI Technical Summary

Problems solved by technology

This construction method requires a large amount of auxiliary construction and long hours of auxiliary work. For the external wall, additional external wall insulation construction is required. Usually, the external thermal insulation method of pasting polystyrene board thermal insulation and thin plastering on the external side of the cast-in-place wall is adopted. On the one hand, the construction volume is large, the construction period is long, and the cost is high; on the other hand, the life span of the insulation layer is shorter than that of the building itself, only about 25 years, and it will need to be dismantled and redone by then, which not only increases the secondary investment, but also Increased construction waste, affecting the environment

Images