Seismic Performance Investigation and Analysis of Rural Residential Buildings in Yindu District,Anyang City

CHEN Qian; LI Tao; ZHANG Yang; ZHOU Jian; HAN Zhenhui; LI Xiaoyang

doi:10.13512/j.hndz.2025.03.14

Abstract：This article investigated rural residential buildings in 14 natural villages and 10 towns in Yindu District,Anyang City,through face to face interaction and village and household visits.The seismic performance of buildings was analyzed in terms of structural types,construction years,and structural characteristics.The results show that the proportion of masonry structures in rural residential buildings in Yindu District is high,and the construction years mainly range from 1980s to 2000s;the proportion of unreinforced masonry structures is the highest.The joint of longitudinal and transverse walls of the new(existing)buildings is not protected with structural measures to ensure its reliable connection.The window lintels are made of bricks,and there were even no lintels.The concrete lintels lack support lengths that meet the standards on the walls.Large doors and windows of the new(existing)buildings generally are installed on the south longitudinal walls,resulting in significant differences in stiffness between the front and rear longitudinal walls.Stairs are generally arranged at the ends or corners of buildings,causing stress concentration and the torsion is increased.Based on this,it is proposed that there are some problems in rural residential buildings in Yindu District,such as irregular plane(facade),non-standard design and construction,and weak awareness of earthquake prevention and disaster reduction among residents.Finally,some reasonable suggestions are put forward to provide a scientific basis for the research on the seismic performance of residential buildings in Henan Province.