钢结构在地震荷载作用下的大塑性交变应变测试方法研究  

A STUDY OF METHOD MEASURE OF LARGE PLASTIC CYCLIC STRAIN OF STEEL STRUCTURES UNDER EARTHQUAKE LOADING

作　　者：王永生[1] 

机构地区：[1]西安建筑科技大学,710055

出　　处：《钢结构》1998年第4期35-39,共5页Steel Construction

基　　金：高校青年科学基金

摘　　要：针对钢结构在抗震性能试验中，测试大塑性交变应变时存在一些问题研制出了一种新型试件光栅-胶性超微粒光栅，使交变性大应变可用云纹法准确而方便的获得．通过实验验证，其应变测试范围为-40％-40％，并应用到工字型钢柱的抗震性能试验中去，获得了满意的结果．In this paper, problems exist in measure of largy plastic cyclic strain have analysed , in theearthquake resistant propertieS test of structures and have developed a new type specimen grating-gluey superpareicle grating The grating make moire was used to measurement of large cyclic strain with great ease Socpe measure of the Strain reached -40% - 40% has been proved by test. And also , the application of thespecimen brating in earthquake resistant properties test study of I-steel pillar, got a good resuit.

关 键 词：大塑性交变应变 应变积累 胶性超微粒光栅 云纹法 

分 类 号：TU393[建筑科学—结构工程]