| 基础提离、滑移对结构动力反应的影响 |
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| 引用本文： | 职洪涛,袁兴隆,杜守继. 基础提离、滑移对结构动力反应的影响[J]. 贵州工业大学学报(自然科学版), 1995, 0(5) |
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| 作者姓名： | 职洪涛 袁兴隆 杜守继 |
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| 作者单位： | 同济大学 |
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| 摘 要： | 本文采用集中参数法分析上——结构动力相互作用问题中基础提离、滑移对结构动力特性的影响。假定地基土为弹性半空间体，上介质均匀、线性且各向同性，采用ｗｉｎｋｌｅｒ基础模式；土与结构间的滑移遵从库仑破坏准则。作为实例，在Ｅｌ—Ｃｅｎｔｒｏ地震波作用下，对一结构模型进行了数值分析。研究表明竖向地面运动对结构地震反应有较大影响；基础滑移可减少结构地震反应，起到了隔震作用。
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| 关 键 词： | 集中参数法；提离；滑移；动力反应 |
EFFECT OF BASE UPLIFTING AND SLIDING ON DYNAMIC RESPONSE OF STRUCTURES |
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| Zhi Hongtao,Yuan Xinglong, Du Shonji. EFFECT OF BASE UPLIFTING AND SLIDING ON DYNAMIC RESPONSE OF STRUCTURES[J]. Journal of Guizhou University of Technology(Natural Science Edition), 1995, 0(5) |
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| Authors: | Zhi Hongtao Yuan Xinglong Du Shonji |
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| Affiliation: | Tongji University |
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| Abstract: | Lumped parameter method is used in this paper to examine the effect of base uplifting and sliding on the maximum response of structures.Soil boby is assumed to be a homogeneous,elastic half space,and winkler foundation model is used.The sliding between soil and structre is determined by the rule of coulomb failure.As an example,the EL-centro earthquake record 1940 is used on a structural model to show the structural response due to a sliding and uplifting base.The study shows that vertical ground motion dose affect the superstructure response.Nevertheless,the sliding base isolator is shown to be effective for the reduction of seismic response of a superstructure. |
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| Keywords: | Iumped parameter method uplifting sliding dynamic response |
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