Synchronous construction method for chimney lining external concrete

Abstract

The invention discloses a synchronous construction method for chimney lining external concrete. A working procedure for constructing a steel bar concrete chimney cylinder body comprises the following steps of: carrying out construction surveying; constructing a heat isolation layer (6) and a fireproof brick lining (7); binding steel bars on a concrete cylinder body (4); constructing an external folding die (2); and pouring the concrete cylinder body (4). By a synchronous construction process, concrete is poured among the heat isolation layer, the fireproof brick lining and an external template, so that the construction quality is high, the construction speed is high, and the construction safety is realized; the synchronous construction method is economic, practical and simple and convenient to operate; and the construction expense can be saved, and the construction cost can be reduced. For the same chimney, compared with the construction period of a sliding die, the construction period of the folding die is shortened by about 30 percent, so that the project construction cost is saved by about 20 percent; the synchronous construction method is remarkable in comprehensive technological economy and social benefit and suitable for construction of steel bar concrete chimney cylinder body linings with the diameter ranging from 30m to 80m and external folding dies.

Description

technical field [0001] The invention relates to a method for processing building structures of international patent classification E04B, in particular to a method for synchronous construction of chimney inner lining and outer concrete. Background technique [0002] In the known technology, reinforced concrete chimneys are generally constructed by hydraulic sliding formwork without a derrick, and the weight of the platform and formwork is mainly borne by the support rods, and hydraulic jacks are used to drive the rise of the operating platform and formwork. [0003] In the prior art, the construction methods of reinforced concrete chimneys are seldom disclosed. For example, the patent application number CN200910234216.3 discloses a rapid construction method of reinforced concrete chimneys, which utilizes flowing water construction and the stress principle of arched structures to rationally combine frames. The structure of materials and chimney itself has been completed, and t...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, in the construction of a reinforced concrete chimney, the chimney cylinder must be poured first, and then the insulation layer and refractory bricks on the inner wall of the cylinder can be built. The construction period is longer, and the cost is also correspondingly increased. Due to The construction cannot be carried out simultaneously, and the scaffolding also needs to be erected twice before and after, which puts more pressure on the construction management

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