Form erecting method for casting dome roof in situ

Abstract

The invention discloses a form erecting method for casting a dome roof in situ. The form erecting method comprises the following steps: matching templates and indwelling a construction seam; carrying out in-situ fabrication and subsection assembling on inner and outer templates by means of amplifying a sample, wherein the arc length of the dome roof is determined by the height of each section according to specification of a gluing board, and a construction indwelling position of a concrete horizontal seam is as the same as the height of the semispherical outer template of the dome roof; connecting the outer template and the inner template through a split bolt; in a process of pouring concrete each section, preventing from indwelling the construction seam on a wood beam with a certain specification; manufacturing a sub-template back edge; and configuring an arc-shaped panel and mounting the templates. According to the form erecting method provided by the invention, the inner and outer templates are prefabricated in situ and assembled in a subsection manner by means of amplifying the sample. The inner template is assembled and mounted on the dome roof for one time, and the outer template and concrete are constructed in a subsection manner; and the templates are used for turnover manner. The form erecting method provided by the invention has the characteristics of low material consumption, turnover use, simplicity in assembling, rapid construction speed, easiness for quality assurance, low construction cost and high security.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a method for supporting a dome formwork of a cast-in-place concrete structure roof. Background technique [0002] Cast-in-place concrete dome roofs have been widely used at home and abroad in recent years. However, in this type of modeling construction at home and abroad, the construction method of splicing plywood on the construction site is mostly used. This method is characterized by difficult construction by workers, high cost, long construction period, and difficult to guarantee the quality. The existing construction technology for such structures Generally, the construction method of splicing plywood on site is generally used. First, the construction cost is high, the amount of plywood sawing is large, the material waste is large, and the number of material turnover is small; second, the construction progress is slow, and the plywood is scattered on site. The labor int...

AI Technical Summary

Problems solved by technology

However, in this kind of modeling construction at home and abroad, the construction method of loose plywood on the construction site is mostly used. This method is characterized by difficulty in construction, high cost, long construction period, and difficult quality assurance. Generally, the construction method of on-site loose plywood is adopted. First, the construction cost is high, the amount of plywood sawing is large, the material waste is large, and the number of material turnover is small; the second is that the construction progress is slow, and the on-site plywood is scattered. , it is not convenient for construction; the third is that the quality is difficult to guarantee, it is difficult to enlarge the sample on site, the joints of the formwork are not tight, and the quality of the concrete appearance is poor. If the construction joints and bolt holes are set according to the traditional method, structural leakage is prone to occur; the fourth is to use the traditional method construction, safety is difficult to guarantee, the traditional method has a long construction period, high difficulty of operation, and the concentrated load on the formwork support system