Method for strengthening brick wall through fiber cloth

Abstract

The invention relates to a method for strengthening a brick wall through fiber cloth, which comprises the following steps of: determining a part where a constructional column and / or a ring beam is to be arranged on a brick house or wall, and after surface treatment and surface modification, adhering vertical fiber cloth on the part where the constructional column is to be arranged on the brick house or wall; adhering transverse fiber cloth on the part where the ring beam is to be arranged; and adhering the transverse fiber cloth in the height direction of the constructional column at intervals. Different from an X-type or #-shaped strengthening method for improving shear performance of the wall, the method mainly improves the whole performance of the wall, can obviously improve the ductility and multi-defense capacity of the wall structure, and has the obvious advantages that: earthquake fissure is hard to generate on the fiber cloth adhering part, the wall is high in strength and efficiency, convenient to construct, low in cost, corrosion-resistant, light in dead weight and easy to maintain, the construction period is short, the structural dimension is not increased, and the like; moreover, the method is favorable for protecting environment, easy to popularize and implement in villages and townships and can improve the earthquake resistance of the brick house.

Description

technical field [0001] The invention relates to the field of building reinforcement, in particular to a method for reinforcing brick walls with fiber cloth. Background technique [0002] Masonry is widely used in the field of industrial and civil buildings in my country, but due to the brittle nature of masonry materials, its tensile, shear and flexural strengths are relatively low and its weight is large, which is not conducive to the structure's earthquake resistance. Most of the existing residential brick houses in villages and towns in my country, especially in economically underdeveloped areas, do not have structural columns or take any other anti-seismic measures. Once a strong earthquake occurs, the earthquake damage of masonry structures is often serious. In addition, there are many masonry structures with relatively high use value and historical value, but the earthquake action was often not considered in the early design, resulting in poor seismic performance of ma...

AI Technical Summary

Problems solved by technology

[0005] In November 2007, Zhang Wei and Peng Shaomin of Wuhan University of Technology conducted "X" type and The "well" type reinforcement with carbon fiber cloth can improve the shear bearing capacity of the wall, but the improvement effect on the overall performance and collapse resistance of the brick wall is poor, and it is easy to crack at the place where the fiber cloth is pasted, resulting in the failure of the fiber cloth. (Zhang Wei. Experimental research and finite element analysis of carbon fiber reinforced masonry. [D] Doctoral dissertation of Wuhan University of Technology, 2008)

There are no experimental analysis results for these two strengthening schemes. Even if the overall performance and collapse resistance of seismic strengthening can be satisfied to a certain extent, the materials are too wasteful and not economical (Zhou Xingang, Wei Changqin, Ye LPing. Mechanical properties of CFRP reinforced masonry structures Analysis. [J] Engineering Mechanics, 2008, (06).)

Images