On-site concrete shear wall structure with permanent heat insulation formwork and construction process of on-site concrete shear wall structure

Abstract

The invention discloses an on-site concrete shear wall structure with a permanent heat insulation formwork and a construction process of the on-site concrete shear wall structure. The cross section of the shear wall structure comprises an inner side permanent heat insulation formwork layer, an outer side permanent heat insulation formwork layer and a reinforced concrete structure layer; and the permanent heat insulation formwork is composed of a high-performance fiber reinforced concrete layer and a light concrete heat insulation layer. The construction process includes precasting a welding steel rack with the permanent heat insulation formwork, mounting on site, pouring concrete and constructing the heat insulation layers and the shear wall structure synchronously. The permanent heat insulation formwork plays the role of both the heat insulation layer and the formwork, is taken as one part of the structure to work with the others, and is beneficial to saving of a large quantity of construction formworks; construction efficiency is improved; and the on-site concrete shear wall structure is a novel assembly integrated structure with combination of structure, heat insulation and formworks. By the technical scheme, service life of the structure is as the same as that of building heat insulation; problems of firmness and durability of the connection between the heat insulation layers and the structure are completely achieved; the structure is beneficial to engineering quality guaranteeing, construction period saving and construction cost reducing; and development in building industry is promoted.

Description

technical field [0001] The invention relates to the field of assembled integral structures in civil engineering structures. The cast-in-place concrete shear wall structure of permanent thermal insulation formwork is a new type of thermal insulation and energy-saving wall integrating structure, thermal insulation, heat insulation, sound insulation and fire prevention, including structural components. And the second part of construction technology. Background technique [0002] With the development of energy-saving building and wall insulation technology, the implementation of the energy development strategy of "energy saving priority" puts forward higher requirements for energy-saving technology. The existing external wall insulation technologies mainly include organic insulation boards such as flame-retardant polystyrene boards and polyurethane boards, and inorganic insulation boards such as foamed cement boards and vitrified microbead boards. Organic insulation boards are d...

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Problems solved by technology

On the one hand, it solves safety and durability problems such as hollowing, cracks, water seepage, falling off, and flammability in the insulation layer, as well as complex construction technology, low efficiency, difficult control of construction quality, long construction period, high cost, and damage to the exterior surface layer. On the other hand, it solves the problems of large amount of building formwork and high cost in cast-in-place concrete engineering

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