| 双向地震激励的标准化弹塑性位移反应谱 |
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| 引用本文： | 王丰,王楠楠,张振楠,许海军.双向地震激励的标准化弹塑性位移反应谱[J].大连民族学院学报,2015,17(1):69-72. |
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| 作者姓名： | 王丰 王楠楠 张振楠 许海军 |
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| 作者单位： | 大连民族学院 土木建筑工程学院,辽宁 大连116605 |
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| 基金项目： | 国家自然科学基金资助项目，辽宁省高等学校优秀人才支持计划资助，中央高校基本科研业务费专项资金资助项目(DC120101095)。 |
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| 摘 要： | 针对实际地震动作用的多维性和结构非线性反应的空间耦合特点,建立了双向地震激励的单质点双自由度模型,假定此模型的恢复力关系符合二维屈服面函数。按硬、中、软土场地分类共选择89组双向地震动记录作为系统的激励,建立了统计平均的标准化弹塑性位移反应谱。分析了场地类别、延性系数、两主轴方向周期比对标准化弹塑性位移谱的影响。
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| 关 键 词： | 弹塑性位移谱 双向地震激励 延性系数 |
Normalized Elastic-plastic Displacement Spectra for Bi-directional Earthquake Excitations |
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| WANG Feng,WANG Nan-nan,ZHANG Zhen-nan,XU Hai-jun.Normalized Elastic-plastic Displacement Spectra for Bi-directional Earthquake Excitations[J].Journal of Dalian Nationalities University,2015,17(1):69-72. |
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| Authors: | WANG Feng WANG Nan-nan ZHANG Zhen-nan XU Hai-jun |
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| Institution: | College of Architecture &Civil Engineering, Dalian Nationalities University, Dalian Liaoning 116605, China |
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| Abstract: | In view of the space coupling characteristics of multi-dimensional and structural nonlinear responses of actual earthquake excitations, the model of single mass bi-degrees of freedom system subjected to bi-directional earthquake excitations is established, in which the yield rule of the system is determined by two-dimensional yield-surface plasticity function. The 89 pair bi-directional earthquake motion records of hard soil site, intermediate soil site and soft soil site are selected as earthquake excitations of the single mass bi-degrees of freedom system, and the mean normalized elastic-plastic displacement spectra of constant ductility factors are established. The influence factors of normalized displacement spectra such as soil site, ductility factor and period ratio of bi-directions are analyzed. |
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| Keywords: | elastic-plasitc displacement spectra bi-directional earthquake excitations duc-tility factor |
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