摘要
对不同场地条件下,不同周期的基础隔震结构在水平双向和单向地震作用下的隔震支座位移进行了对比分析,表明水平双向地震作用下隔震支座的总位移均明显大于水平单向地震作用下的支座位移,其比值的平均值为1.187,因而,在简化设计中确定基础隔震结构隔震支座位移时,可将水平单向地震作用下的隔震支座位移增大20%,以考虑水平双向地震作用对基础隔震结构隔震支座位移的影响。
The analysis on the isolator displacement of the base-isolated structure with different sites and period under bilateral and unilateral earthquake excitation is carried out. The maximum isolator displacement under bilateral ground motions is obviously lager than that under unilateral ground motion, and the average value of the ratio is 1. 187. In order to considering the influence of the bilateral earthquake excitations on the isolator displacement, the maximum isolator displacement should increase by 20% as compared with that of the unilateral ground motion.
出处
《建筑科学》
北大核心
2010年第1期68-70,共3页
Building Science
基金
国家自然科学基金(50478050)
河南省高等学校青年骨干教师资助计划项目
关键词
基础隔震结构
支座位移
水平双向地震作用
base isolated structure
isolator displacement
bilateral earthquake excitation
