| 地震力冲击下梁桥桥台的非线性动力分析 |
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| 引用本文： | 王修信,ＢｅｒｎａｌＤ,ＡｌａｒｃｏｎＥ.地震力冲击下梁桥桥台的非线性动力分析[J].宁波大学学报(理工版),1997(3). |
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| 作者姓名： | 王修信 ＢｅｒｎａｌＤ ＡｌａｒｃｏｎＥ |
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| 作者单位： | 东南大学土木建筑系(王修信)，美国东北大学(ＢｅｒｎａｌＤ)，西班牙马德里理工大学(ＡｌａｒｃｏｎＥ) |
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| 摘 要： | 提出了梁桥岸墩与桥板间预留空隙（变温伸缩用）时桥身与桥台的有限无非线性动力分析模型，给出了模拟墩顶橡胶支承、土压力基底摩擦力及可闭合空隙的特殊非线性单元，从而分析了地震时在桥板冲击作用下整个桥梁上部结构及桥台的非线性动力性能及安全度，并与计算桥台抗剪安全系数的简化能量法所给出的桥台滑移量做了数值对比
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| 关 键 词： | 梁桥，桥台，有限单元，非线性，动力分析，变温间隙 |
NONLINEAR DYNAMIC ANALYSIS AND SAFETY EVALUATION OF BRIDGE AND ABUTMENTS DURINGEARTHQUAKE IMPACT |
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| Wang Xiuxin,Bemal D,Alarcon E.NONLINEAR DYNAMIC ANALYSIS AND SAFETY EVALUATION OF BRIDGE AND ABUTMENTS DURINGEARTHQUAKE IMPACT[J].Journal of Ningbo University(Natural Science and Engineering Edition),1997(3). |
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| Authors: | Wang Xiuxin Bemal D Alarcon E |
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| Abstract: | Presents a nonlinear dynamic finite element(FE) model for the abutment and superstructure of a multispan girder bridge with a gap between the deck and the abutment. Some special elements are used for the simulation of neoprene bearings, soil pressure, abutment base friction and gap connection etc. The abutment behavior under deck impact due to earthquake excitation is investigated. |
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| Keywords: | bridge: abutments FE nonliear dynamic analysis |
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