LRB隔震结构模型振动台试验研究(2)

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英文篇名：An experimental study on shaking table of isolated structure model with LRB(2) 中文刊名：哈尔滨工业大学学报 英文刊名：Journal of Harbin Institute of Technology 作者：付伟庆 ; 王焕定 ; 刘文光 ; 丁琳 英文作者：FU Wei-qing 1 ; 2 ; WANG Huan-ding 1 ; LIU Wen-guang3 ; DING Lin2(1.School of Civil Engineering ; Harbin Institute of Technology ; Harbin 150090 ; 2.Architecture and Civil Engineering Institute ; Heilongjiang University ; Harbin 150086 ; 3.University Earthquake Engineering Research Test Centre ; Guangzhou University ; Guangzhou 510405 ; China) 中文关键词：隔震结构 ; 地震反应 ; 隔震支座 ; 振动台试验 英文关键词：isolation structure ; earthquake responses ; isolation bearing ; shaking table experiment 出版日期：2007-04-15 机构：哈尔滨工业大学土木工程学院,哈尔滨工业大学土木工程学院,广州大学工程抗震研究中心,黑龙江大学建筑工程学院 哈尔滨150090,黑龙江大学建筑工程学院哈尔滨150086,哈尔滨150090,广州510405,哈尔滨150086 年：2007 期：04 出版单位：哈尔滨工业大学学报

摘要

为研究大高宽比隔震结构的多维抗震性能,对一缩尺1∶4比例,两向高宽比分别为2.5和5的铅芯橡胶垫隔震结构模型进行了多向地震波输入下的振动台试验研究.试验分为小高宽比隔震结构模型双向地震波输入、大高宽比隔震结构模型三向地震波输入.通过输入不同大小和类型的地震波,分析隔震上部结构和隔震支座的地震反应.试验结果表明:各向地震波对结构反应将产生复杂的相互影响,当各向地震波发生峰值时刻接近时,这种影响更为显著.因此从安全考虑应该进行水平双向组合变形验算.
For research on multidimensional earthquake-resistance performance of the isolated structure with large height-width ratio,experimental study on shaking table of isolated structure model with lead lead-plug rubber bearing on a scale down of 1∶4(height-width ratio 2.5 and 5) in multi-directional earthquake wave input has been conducted.The experiment is composed of two parts.The first part is isolated structure model experiment with small height-width ratio in two-direction earthquake input.The second part is isolated structure model experiment in three—direction earthquake wave input.Earthquake responses of isolated top structure and isolation bearing have been analyzed in earthquake wave put with different magnitudes and types.Experimental result indicts that each other complex influence of different direction on structure response was produced.And when their peak value tine is closed,the influence is especially obvious.So unitized checking for horizontal deformation of the bearing is requested considering safety factor.

引文

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