Method for controlling crack of fiber reinforced concrete wall

Abstract

The invention discloses a method for controlling a crack of a fiber reinforced concrete wall. The method for controlling the crack of the fiber reinforced concrete wall comprises the following steps that firstly, selection of the diameter of each steel bar and the number of the steel bars is conducted so that stress concentration caused by abrupt change of the structural section can be avoided; secondly, optimization selection of raw materials of concrete is conducted; thirdly, optimal design of the mixture ratio of concrete is conducted; fourthly, effective control and effect detection are conducted on the construction progress. According to the method for controlling the crack of the fiber reinforced concrete wall, reasonable layout of the steel bars, reasonable reservation of expansion joints, and reasonable selection of sand are conducted, tests and engineering practice show that the method for controlling the crack of the fiber reinforced concrete wall is effective on control over the large-area concrete crack of a base plate, and the problem that the structure generates cracks in the process of construction of a basement can be solved, favorable conditions of crack control are fully utilized, and the situation that the crack control effect is not ideal in the prior art is changed. In addition, the method for controlling the crack of the fiber reinforced concrete wall is simple, convenient to control and effective.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a method for controlling cracks in fiber concrete walls. Background technique [0002] Cracks often occur in cast-in-place concrete structures before normal use, that is, during construction (unless otherwise specified, the cracks referred to in this article refer to visible cracks in concrete structures under normal conditions). Under the full load of the case, this kind of crack is mostly caused by indirect effects such as non-load deformation (shrinkage, temperature, etc.). Professor Wang Tiemeng summed up and analyzed his personal experience and domestic and foreign investigation data and concluded that: "The causes of cracks in structures in engineering practice are caused by deformation changes (temperature, shrinkage, uneven subsidence) and account for more than 80%; they are caused by loads. accounted for about 20%. In this paper, the cracks ca...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for controlling cracks in fiber concrete walls, aiming to solve the problem that cracks occur in the structure during the construction process, which affects the use function and life of the building

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