古建筑木结构屋盖振动台试验及数值模拟  

SHAKING TABLE TEST AND NUMERICAL SIMULATION OF THE ROOF IN ANCIENT TIMBER STRUCTURE

作　　者：赵鸿铁[1,2] 张风亮[1] 薛建阳[1,2] 马辉[1] 张锡成[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]西部建筑科技国家重点实验室(筹),西安710055

出　　处：《工业建筑》2011年第8期46-48,共3页Industrial Construction

基　　金：国家自然科学基金资助项目(59878043);陕西省重点试验室建设资助项目(05JS17)

摘　　要：以殿堂型木结构屋盖为研究对象,通过振动台试验以及ANSYS数值模拟对屋盖的动力响应进行研究,分别得出其在不同工况作用下的加速度最大响应值以及其整体结构的动力放大系数,并将振动台试验数据与数值模拟结果进行比较。研究表明:随着地震作用的增大,屋盖加速度峰值随之增大,整体结构的动力放大系数减小;动力放大系数试验值比ANSYS模拟值要小。研究结果为古建筑的抗震性能研究提供理论基础和技术参考。Taking the roof of the palace timber structure as the study object,it is studied the dynamic response of the roof by shaking table test and ANSYS numerical simulation,and obtained the maximal acceleration response under different conditions and the seismic amplification coefficient of the whole structure;at last,it is compared the results by shaking table test with those of the numerical simulation.Research shows that with the increase in action of earthquakes,the peak acceleration of the roof is growing and the seismic amplification coefficient of the whole structure is decreased,the seismic amplification coefficient by test is smaller than that by ANSYS simulation.The results reached provide a theoretical foundation and technical reference for seismic performance study of the ancient timber structure.

关 键 词：屋盖 振动台试验 数值模拟 动力放大系数 

分 类 号：TU366.2[建筑科学—结构工程] TU317