防灾减灾工程学报2017，Vol.37Issue(5)：732-739,8.DOI:10.13409/j.cnki.jdpme.2017.05.006
结合脉动测试的金刚宝座塔地震反应分析及震害预测
A Masonry Vajra Throne Pagoda Seismic Response Analysis and Earthquake Damage Prediction Combined with Pulsation Measurement
摘要
Abstract
To study the seismic property of vajra throne pagoda of Cideng Temple in Hohhot,Inner Mongolia Autonomous Region,the dynamic property of five tower above vajra throne were tested and a numerical model was built to calculate the dynamic characteristics of structures.We determine the equivalent elastic modulus of structure by comparing the dynamic property,and output the tower stress response,the elastic displacement response,the maximum interstory drift ratio of each layer and the bottom acceleration time history by inputting El Centro ground motion to calculate the seismic response of pagoda.Results indicate that the maximum value of horizontal shear stress is located in the middle of middle tower and at the bottom of side tower;the maximum value of vertical axial stress was located at the bottom of both tower;the maximum value of inter-story displacement was located at the top of both tower.The weak structures layer of middle tower are four-layer and top and side tower are at bottom and top.Pagoda of Cideng Temple can be basically integrity under frequent earthquake of intensity 8 but will suffer heavy damage in the top of structure under rare earthquake of intensity 8.The follows were indicated by calculation results that vajra throne reduces the calculated frequency of tower,increases the acceleration amplitude at the bottom of tower,which are bad for the seismic property of the pagoda.关键词
金刚宝座塔/砖石古塔/数值模拟/地震反应/震害预测Key words
vajra throne pagoda/masonry pagoda/numerical simulation/seismic response/earthquake disaster prediction分类
建筑与水利引用本文复制引用
李嘉怿,卢俊龙,李凯,张荫..结合脉动测试的金刚宝座塔地震反应分析及震害预测[J].防灾减灾工程学报,2017,37(5):732-739,8.基金项目
国家自然科学基金项目(51308455)、陕西省自然科学基金项目(2015JM5206)、住房与城乡建设部科技计划项目(2014-K2-018)、陕西省博士后基金项目(2014)资助 （51308455）
