Construction method for prefabricated external wall of sandwich wall of aggregate building

Abstract

The invention discloses a construction method for a prefabricated external wall of a sandwich wall of an aggregate building. The method comprises the following steps of pre-embedding supporting piecesfor hanging the external wall into the lower part of a main wall structure, and pre-embedding an anchoring part of a tie device in the upper part of the main wall structure; arranging bottom supportembedded parts and prestressed tendon anchoring embedded parts on a bottom joist of the external wall; building the external wall on the bottom joist, performing health preservation, passing through prestressed tendons and applying vertical prestress by tightening bolts at the ends of the prestressed tendons; hoisting the external wall by using the arranged prestress ribs; and adjusting the perpendicularity of the external wall after hoisting is in place, after the requirement is met, fixedly attaching the bottom support embedded parts of the external wall to the main structure supporting pieces of the main structure, and inserting a positioning hook of the tie device into a clamping groove of the anchoring part in order to complete fixation of the external wall. According to the construction method, through an industrial construction technology and a prefabricated construction technology, the external wall is prefabricated at the factory and is conveyed to the construction site for installation, the quality is improved, the efficiency is improved, the manpower is reduced, the environmental pollution is reduced, and the environmental protection level is improved.

Description

technical field [0001] The invention relates to a construction technology of a wall body of a structural form, in particular to a construction method of an assembled outer leaf wall of a sandwich wall of a block building, and belongs to the technical field of building construction. Background technique [0002] Among the energy consumption of buildings, the energy consumption of the envelope structure dominated by building exterior walls accounts for more than 65% of it. The insulation material is placed between the inner and outer leaf walls of the sandwich wall to form a sandwich wall insulation composite wall, which solves the problem of fire prevention and improves the durability of the wall. As a composite energy-saving wall, the sandwich wall plays a vital role in the process of implementing building energy conservation. However, in the early sandwich walls, ribs and tie parts were often used, and the construction process was cumbersome, so it was difficult to guarant...

AI Technical Summary

Problems solved by technology

These tie bars are made of steel materials, which are the cold bridges in the wall, which reduces the energy-saving effect of the wall

[0009] (2) The outer leaf wall has high requirements on the appearance, requires high-level construction personnel, and the construction is difficult

[0010] (3) The construction conditions of the outer leaf wall are poor, and the on-site masonry construction speed is slow and the efficiency is low

The outer leaf wall construction can only be carried out after the main structure is completed, the vertical transportation and working surface are limited, and the construction speed is slow

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