Support-free formwork for reserved bolt holes of roughing mill body and construction method

Abstract

The invention provides a support-free formwork for reserved bolt holes of a roughing mill body and a construction method. The support-free formwork comprises a reserved hole box, wherein the reservedhole box comprises a bottom sealing plate, a plurality of threaded steel pipes and a top sealing plate; the threaded steel pipes are uniformly distributed between the top sealing plate and the bottomsealing plate; the top sealing plate is provided with top sealing plate holes corresponding to the upper ends of the threaded steel pipes; the upper ends of the threaded steel pipes penetrate throughthe top sealing plate holes and are fixedly connected with the top sealing plate; the bottom sealing plate is provided with bottom sealing plate holes corresponding to the lower ends of the threaded steel pipes; and the lower ends of the threaded steel pipes penetrate through the bottom sealing plate holes and are fixedly connected with the bottom sealing plate. According to the support-free formwork, the defects of wood formwork construction are effectively overcome, the overall rigidity of the formwork is improved through the threaded steel pipes, the formwork dismounting process is reduced,time and labor are saved, the threaded steel pipes and a concrete foundation are fixedly connected into a whole for use, the quality of the reserved bolt holes is guaranteed, and meanwhile, foundation bolts can be effectively prevented from being pulled out through threads of the threaded steel pipes.

Description

technical field [0001] The invention is applicable to the construction problem of reserved bolt holes for rails in industrial buildings, and in particular relates to a support-free formwork and a construction method for the reserved bolt holes of a rough rolling mill body. Background technique [0002] As my country's industrial buildings are developing towards large-scale and modernization, industries such as coking, steel, and metallurgy continue to increase efforts to eliminate backward production capacity and technological transformation, optimize and upgrade industrial structures and merge and reorganize enterprises to achieve large-scale construction and transformation. With modernization, automation, cleaning and environmental protection, the number of bolt holes reserved for large-scale equipment tracks is gradually increasing, and the holes are getting deeper and deeper. The traditional construction methods such as wood formwork, foam board, steel plate formwork, pre...

AI Technical Summary

Problems solved by technology

[0004] 1. It is difficult to guarantee the quality of the project

[0005] Due to the small lateral rigidity of the wooden formwork, it is often seriously deformed or even crushed during concrete pouring and vibration, and the quality of the hole is poor.

[0006] 2. The installation and disassembly of the formwork is time-consuming and labor-intensive

[0007] After the concrete is solidified, the formwork is difficult to take out and cannot be reused, and the installation and removal of the formwork is time-consuming and laborious

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