The Research And Demonstration On The Safety Performance Improvement Of Earthern And Brick Vernacular Dwellings In The Poor Areas Of China's Northwest

The current slogan of precision poverty alleviation resounded throughout the country,and its focus is mostly concentrated in poor rural areas,as soon as possible to solve the poor housing security is one of the core work of poverty alleviation?The special climate in northwest region,geographical environment,resources,culture,created the earth distinctive traditional dwellings,vividly reflects the harmony between man and nature.However,the survey found that the load-bearing wall material mix in the northwest many traditional houses(such as earthern and brick Mix),material selection at random,low mechanical strength,natural material construction rough,technology is relatively backward,the lack of structural measures,the ability to resist earthquake disaster serious shortage?During the last earthquake,the largest number of houses collapsed in the poor areas,the most casualties were the rural population?The starting point of this paper is to address the safety of residential areas in poverty-stricken areas in northwest China,and put forward a set of suitable reinforcement techniques to enhance the safety performance of local houses,with simple,effective,economical and practical basic principles?The main research contents are as follows:(1)This paper analyzes the architectural form,construction skill and structure of the traditional houses in the northwest region,and analyzes the danger of the existence of the houses?On the basis of the analysis of environment,resources and culture,a series of reinforcement methods are put forward?(2)Under the principle of simplicity,efficiency,economy and practicality,the traditional residential technology of reinforced mortar with grooved reinforcement is put forward?On the basis of this technology,three kinds of reinforcement schemes are proposed to reinforce the traditional deep wall,and then the quasi-static test of the wall is carried out?The failure behavior,shear capacity,ductility,stiffness and energy dissipation capacity of the traditional adobe wall under the low cyclic loading are analyzed?Through the test phenomenon and data analysis and comparison,to determine the most appropriate reinforcement technology?(3)This paper introduces the project practice,preliminary investigation and investigation,safety identification,reinforcement method and measures,and the cost of project cost analysis in Lintao County?In the engineering practice to explore the feasibility of its reinforcement method.