Single-layer prefabricated composite wall is to complete half of the steel bar binding and concrete pouring in the factory, and the other part is embedded with steel bars, and then the secondary steel bar binding and concrete pouring are carried out on site. Before the external wall is hoisted, it is necessary to install an external protective frame on the external wall panel. Precast external wall panels shall be hoisted at two points, and when the components are away from the installation location 1000mm, special hangers shall be used to prevent the components from descending.
Patent background
Precast concrete structure, as a structural form conforming to industrial production mode, has the advantages of fast construction speed, convenient construction, reduced labor intensity of constructors, improved construction site environment, reduced noise pollution, reduced wet operation and easy control of product quality.
At the same time, prefabricated buildings can effectively save resources and energy, improve the efficiency of materials in realizing building energy saving and structural performance, reduce the demand for site and environmental conditions for on-site construction, reduce the number of on-site construction labor, reduce the adverse impact of construction waste and construction on the environment, and improve building functions and structural performance.
Effectively realizing the green development requirements of "four festivals and one environmental protection" and realizing the construction process of low energy consumption and low emission can promote the healthy development of China's construction industry and achieve the predetermined energy conservation and emission reduction goals.
Housing industrialization is an important aspect of industrialized buildings, which can comprehensively improve the performance and quality of China housing, improve the durability of housing, promote the upgrading of related industries, and bring huge subsequent economic and social benefits. Using precast concrete structure is an important way of residential industrialization, and residential components are prefabricated in the factory.
Site assembly, factory production of components, fast construction speed, saving resources, reducing project cost, meeting the growing housing needs of the broad masses of people, energy saving and emission reduction was the top priority in the world before April 20 13, and the loss of building materials was reduced by 60% through factory production.
Building energy efficiency is more than 65%, and the construction period is shortened by 70%. In the "whole process" of building construction and use, energy can be saved, and the adverse impact on the environment can be minimized, especially in the northern region where winter breaks are long, and "year-round construction" can be carried out without seasonal influence, thus improving construction efficiency.