| 地震作用下边坡的共振响应研究 |
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| 引用本文： | 言志信,张学东,张森,曹小红,张刘平.地震作用下边坡的共振响应研究[J].工程抗震与加固改造,2011,33(1):6-11. |
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| 作者姓名： | 言志信 张学东 张森 曹小红 张刘平 |
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| 作者单位： | 兰州大学土木工程与力学学院;西部灾害与环境力学教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(10672191); 高等学校博士学科点专项科研基金(20090211110016); 甘肃省自然科学基金计划项目(096RJZA048) |
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| 摘 要： | 根据结构动力学理论,建立了边坡共振的力学模型.通过数值模拟的方法研究边坡在地震作用下的共振特点.数值分析结果表明:在水平地震作用下,地震波频率与边坡的第二阶固有频率一致时,才会发生共振.在模态分析时发现,边坡的第二阶固有频率所对应的振型为水平向振动.边坡发生共振时,越靠近坡面水平向位移越大,随坡高的增加,水平向位移也在...
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| 关 键 词： | 边坡 地震 共振 数值模拟 |
Study on Seismic Resonance Effect of Slope |
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| Yan Zhi-xin,Zhang Xue-dong,Zhang Sen,Cao Xiao-hong,Zhang Liu-ping.Study on Seismic Resonance Effect of Slope[J].Earthquake Resistant Engineering and Retrofitting,2011,33(1):6-11. |
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| Authors: | Yan Zhi-xin Zhang Xue-dong Zhang Sen Cao Xiao-hong Zhang Liu-ping |
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| Affiliation: | Yan Zhi-xin1,2,Zhang Xue-dong1,Zhang Sen1,Cao Xiao-hong1,Zhang Liu-ping1(1.College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,China,2.Key Laboratory of Mechanics on Disaster and Environment in Western China,Ministry of Education,China) |
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| Abstract: | Based on structural dynamic theory,the resonance mechanical model is established.By utilizing numerical simulation method,the resonance characteristics of slope in earthquake are studied.Numerical results show that under the influence of horizontal seismic action,resonance will occur when the seismic wave frequency is identical to the second-order natural frequency of slope.In the model analysis,it is found that the second-order model of slope corresponds with horizontal vibration.When the resonance occurs ... |
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| Keywords: | slope earthquake resonance numerical simulation |
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