Heightening method and structure of high cup opening prefabricated column foundation cup opening

Abstract

The invention discloses a heightening method and structure of a high cup opening prefabricated column foundation cup opening. The top portion of the manufactured high cup opening prefabricated column foundation cup opening is harshly chisel so that longitudinal stress steel bars of high cup opening prefabricated column foundation is exposed on the top of the high cup opening prefabricated column foundation cup opening, and then reinforcing steel bars are welded with the longitudinal stress steel bars in a butt welding mode, reinforcement stirrups are simultaneously bound on the reinforcing steel bars, fine aggregate concrete is poured with the reinforcing steel bars after the reinforcement stirrups are completely bound, wherein the grade of the fine aggregate concrete is in a higher level than the grade of high cup opening prefabricated column foundation concrete, and therefore a heightened cup opening with the needed height is manufactured on the top of the high cup opening prefabricated column foundation cup opening and the height of the heightened cup opening is equal to the heightened height as needed. The heightening method and structure of the high cup opening prefabricated column foundation cup opening has the advantages of being high in reliability and stability of the structure, low in construction cost, convenient to construct, free from wasting of raw materials and the like.

Description

technical field [0001] The invention relates to a method and structure for raising the height of the base cup of a prefabricated column with a high cup mouth, belonging to the technical field of building structures. Background technique [0002] At present, in the existing building structure design and construction process, often due to design and construction errors or changes in design conditions, the reserved depth of the prefabricated column foundation with a high cup mouth does not meet the requirements of the relevant specifications, which will It greatly affects the stability and safety of the prefabricated column. In the existing technology, in view of the fact that the height of the foundation cup of the prefabricated column with a high cup opening cannot meet the requirements, the entire high cup is often remade according to the required height. The method of pouring concrete at the top of the cup mouth of the original high cup mouth prefabricated column foundation...

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing building structure design and construction process, often due to design and construction errors or changes in design conditions, the prefabricated high cup mouth that has been made is often The reserved depth of the cup mouth of the column foundation does not meet the requirements of relevant specifications, which will greatly affect the stability and safety of the prefabricated column. In some cases, it is often used to re-make the entire high cup prefabricated column foundation according to the required height, or directly pour concrete on the cup top of the original high cup prefabricated column foundation to meet the required cup height. The first method Although it has the advantages of reliable structure and good stability, it has the problems of high cost and waste of raw materials. The second method has the problem of poor structural reliability and stability.

Therefore, the heightening methods of the existing high cup mouth prefabricated column foundation cup mouth are not ideal

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