钢筋混凝土立筒实仓结构模态试验研究

英文篇名：Modal experimental study on the reinforced concrete silo
中文刊名：四川建筑科学研究
英文刊名：Sichuan Building Science
作者：许启铿 ; 张昊 ; 揣君 ; 王录民
英文作者：XU Qikeng1 ; 2 ; ZHANG Hao2 ; CHUAI Jun3 ; WANG Lumin1 ; 2(1.School of Civil Engineering ; Hefei University of Technology ; Hefei 230009 ; China ; 2.School of Civil Engineering ; Henan University of Technology ; Zhengzhou 450001 ; China ; 3.Henan University of Technology Design and Research Academy ; Zhengzhou 450001 ; China)
中文关键词：环境激励 ; 筒仓结构 ; 模态试验 ; 有限元
英文关键词：environment drive ; reinforced concrete silo ; modal test ; finite element
出版日期：2012-10-25
机构：合肥工业大学土木与水利工程学院;河南工业大学土木建筑学院;河南工大设计研究院;
年：2012
期：05
出版单位：四川建筑科学研究

摘要

钢筋混凝土立筒仓动力特性参数是评估筒仓结构抗震性能和损伤状态的基础参数。本文以钢筋混凝土立筒仓为试验对象,开展了基于环境激励的现场实仓模态试验研究,得到了该实仓结构的前四阶固有频率、振型和阻尼比;利用模态分析验证了实测结果的有效性和试验方法的可行性,为在役立筒仓结构的损伤识别奠定基础。
The dynamic performance of the reinforced concrete silo is an fundamental parameter to evaluate the seismic behavior and damage condition.In order to obtain the actual silo's dynamic parameter,the modal test in-situ on the single silo under environment drive is performed and the silo's first four natural frequencies,model shapes and damping ratios are obtained.Based on the modal analysis,the test result is verified and the test method is feasible which lays foundation the damage identification of the silo structure in service.

引文

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