大缩尺模型振动台试验误差分析  

Error Analysis of Large-Scale Down Model Shaking Table Test

作　　者：葛康[1] 陈世鸣[1] GE Kang;CHEN Shiming(Research Institute of Structural Engineering and Disaster Reduction,Tongi University, Shanghai 200092, China)

机构地区：[1]同济大学结构工程与防灾研究所,上海200092

出　　处：《结构工程师》2017年第5期154-161,共8页Structural Engineers

摘　　要：模拟地震振动台试验是模拟建筑结构在地震作用下真实响应的一种重要手段。但在振动台试验的设计、材料选用及模型制作阶段均存在着不可避免的误差,进而影响到试验的结果,尤其是在缩尺比例较大的试验中这种影响更为明显。针对一个1∶30的缩尺模型结构进行了振动台试验,并在基于实测数据的基础上对试验中产生的误差进行分析,得到了误差对模型自振特性及位移响应的影响。Shaking table test is an important method to simulate building behavior under real earthquake.However,test errors inevitably occur during stage of test design,material selection and model manufacture,which can influence test results,especially in largescale shaking table tests.This paper analysessome test errors of a1/30scale down shaking table test model through finite element method.Also the causes of test errors and the influences on the natural vibration characteristic and displacement response of model structure caused by the errors were studied respectively.

关 键 词：振动台试验模型 大缩尺 设计及制作 试验误差 

分 类 号：TU973[建筑科学—结构工程]