建筑结构学报2017，Vol.38Issue(9)：84-93,10.DOI:10.14006/j.jzjgxb.2017.09.010
持续强震作用下RC框架结构振动台试验研究
Shaking table tests of RC frame under consecutive strong ground motion excitations
摘要
Abstract
Consecutive strong motion excitations have high damage capacity and they were found to cause the massive collapse of large amount of building structures in 2008 Wenchuan earthquake.To investigate the seismic behavior of the RC frame under consecutive strong earthquake excitations,the scaled model of a 12-story RC frame was built with a scaling ratio of 1/10.Three series of shaking table tests were performed using four selected ground motions.The results show that the sensitivity of the RC frame to the same input motions reduces in the 2nd and 3rd series of tests,and the structural responses are almost the same.However,the responses increase faster once using different series of input motions.Based on these observations,a new concept namely the seismic toughness was defined and the corresponding conceptual calculation method was provided.The relevant fundamental mechanism such as the ductility and damage,and the main research tasks,application method were conceptually elaborated.It is suggested to conduct related analytical and experimental studies so that the seismic performance especially the collapse prevention capacity of the structures can be improved under the consecutive strong earthquake excitations.关键词
RC框架结构/持续强震/振动台试验/抗震性能/倒塌/抗震稳健性Key words
RC frame structure/consecutive strong ground motion/shaking table test/seismic performance/collapse/seismic toughness分类
建筑与水利引用本文复制引用
黄宝锋,卢文胜,陈世鸣..持续强震作用下RC框架结构振动台试验研究[J].建筑结构学报,2017,38(9):84-93,10.基金项目
国家自然科学基金项目(51608381),国家科技重大专项关键专题(2013ZX06005004). （51608381）
