Construction method of high-rise residence expansion type reinforcing band replacing post-cast strip

Abstract

The invention relates to the technical field of building construction, in particular to a construction method of a high-rise residence expansion type reinforcing band replacing a post-cast strip. The construction method comprises the steps of formwork erection, roof steel bar laying, division of the post-cast strip range by adopting a steel wire mesh, concrete pouring, film covering and maintenance, and formwork and support dismantling; an integral erecting mode is adopted for formwork erecting, bottom bars are laid at the position of an original post-cast strip according to the specification and interval of top plate steel bars, and after laying is completed, longitudinal and transverse reinforcing steel bars are arranged in a reinforcing strip area; and after the steel bars are bound, the range of the post-cast strip is divided through a steel wire mesh, concrete, except a reinforcing plate strip, of the top plate is poured firstly, and after pouring is completed, micro-expansion concrete is poured in the reinforcing plate strip. The post-cast strip part concrete and the main body concrete are integrally cast, so that the construction period is shortened, and meanwhile, the hidden danger of later leakage of a construction joint of the part is avoided.

Description

technical field [0001] The invention relates to the technical field of building construction, and more specifically, relates to a construction method of a high-rise residential expansion type reinforcement belt instead of a post-cast belt. Background technique [0002] In the construction stage of the main structure, according to the structural design requirements, after the construction length of the concrete structure exceeds a certain distance, in order to reduce the impact of the stress caused by the temperature shrinkage of the concrete on the structure, it is necessary to set a temperature post-casting belt. For high-rise residential buildings, if post-cast strips are installed on the roof and exterior walls of each floor during the construction of the main structure, then not only must separate support be provided for the post-cast strip formwork, but also independent support must be provided for this part when the formwork is removed later, until The post-cast belt c...

AI Technical Summary

Problems solved by technology

For high-rise residential buildings, if post-cast strips are installed on the roof and exterior walls of each floor during the construction of the main structure, then not only must separate support be provided for the post-cast strip formwork, but also independent support must be provided for this part when the formwork is removed later, until The post-cast belt can only be dismantled after the concrete pouring is completed, resulting in a waste of materials and increasing the construction cost; at the same time, the post-cast concrete needs to be poured after a period of time after the concrete pouring on both sides is completed, so as to interpenetrate the secondary structure and the floor. The construction has caused an impact and affected the construction period; in addition, the post-cast belt is a weak area for leakage of the main structure. If it is not handled properly, it may cause leakage hidden dangers in the later stage of use and affect the construction function of the structure