| 地震动加加速度反应谱的概念及特性研究 |
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| 引用本文： | 何浩祥,闫维明,陈彦江.地震动加加速度反应谱的概念及特性研究[J].工程力学,2011(11):124-129. |
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| 作者姓名： | 何浩祥 闫维明 陈彦江 |
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| 作者单位： | 北京工业大学工程抗震与结构诊治北京市重点实验室; |
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| 基金项目： | 国家自然科学基金项目(50878010,50978009); 北京市教委科技计划面上项目(JC004013201003) |
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| 摘 要： | 加加速度是加速度关于时间的变化率，反映了结构受力变化情况。地震动加加速度及其反应谱的研究可以加强人们对地震动非平稳性的认识。阐述了加加速度的力学意义及研究价值，探讨了计算DriDri速度的动力学方法并对其优缺点进行了比较。建立了地震动下弹性及弹塑性加加速度反应谱的求解方法。根据场地类型、放大系数、延性系数及折减系数等影...
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| 关 键 词： | 加加速度 地震动 反应谱 折减系数 延性系数 |
STUDY ON CONCEPT AND CHARACTERISTICS OF SEISMIC JERK RESPONSE SPECTRA |
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| HE Hao-xiang,YAN Wei-ming,CHEN Yan-jiang.STUDY ON CONCEPT AND CHARACTERISTICS OF SEISMIC JERK RESPONSE SPECTRA[J].Engineering Mechanics,2011(11):124-129. |
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| Authors: | HE Hao-xiang YAN Wei-ming CHEN Yan-jiang |
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| Affiliation: | HE Hao-xiang,YAN Wei-ming,CHEN Yan-jiang(Beijing Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Jerk is the time rate of acceleration,reflecting the variation of structural forces.The study on jerk and its response spectra can enhance the recognitions on the non-stationary of ground motion.The mechanical meaning and research value of jerk is described.The calculating methods for jerk are discussed and their performance and disadvantages are compared.The solution method of elastic and inelastic jerk response spectra under ground motion is established.The characteristics of jerk response spectra are stu... |
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| Keywords: | jerk ground motion response spectra reduction factor ductility factor |
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