Construction method of anti-floating locating system of cast-in-place concrete hollow floorslab steel tube

Abstract

The invention provides a construction method of an anti-floating locating system of a cast-in-place concrete hollow floorslab steel tube. The method comprises the following steps of: bracing a beam bottom template, binding beam steel, installing a beam side template and finally installing a top plate template; marking position lines of all parts, water-electricity reserved holes and a position line of an embedded junction box on the templates; binding a hidden beam and plate bottom steel; embedding water-electricity conduits, wire boxes and sleeves; arranging an anti-floating point on the beam bottom template vertical to the laying direction of a prefabricated hollow tube, enabling an iron wire to pass through the templates and be connected with a template support system in a pulling way,and throwing off an end head from the upper part of the iron wire; installing the prefabricated hollow tube, arranging an F-shaped locating fixture vertical to the laying length direction of the prefabricated hollow tube, and controlling the horizontal displacement of the prefabricated hollow tube by using the F-shaped locating fixture; arranging a compression steel tube on a reinforcing mesh sheet, pouring concrete and maintaining; shearing off the iron wire and removing the compression steel tube. The anti-floating locating system of the steel tube is used for cast-in-place concrete hollow floorslab construction, the construction method is simple and the construction efficiency is high.

Description

technical field [0001] The invention relates to a construction method of a cast-in-place concrete hollow floor, in particular to a construction method of a steel pipe anti-floating positioning system for a cast-in-place concrete hollow floor that restricts floating of prefabricated hollow tubes in the hollow floor. Background technique [0002] With the continuous development of the construction industry and the emergence of new technologies, there are more and more buildings with large spans, large loads, and large spaces. Buildings with large spans, large loads, and large spaces are built with traditional building structures, and their weight is relatively large. Not conducive to earthquake resistance. The construction technology of cast-in-place concrete hollow slabs is a new technology of structural construction that has only been developed in China in recent years. As a key construction technology promoted by the Ministry of Construction at the end of the 20th century a...

AI Technical Summary

Problems solved by technology

However, in the past construction technology of cast-in-place concrete hollow slabs, there were few turnover times of slab formwork, and a large number of iron wires had to be manually processed, which greatly reduced economic benefits and reduced the quality of concrete slabs.

At the same time, the protection of prefabricated hollow pipes is not optimistic

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