| 基于位移反应谱的连续梁桥抗震设计简化方法 |
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| 引用本文： | 杨玉民,胡勃.基于位移反应谱的连续梁桥抗震设计简化方法[J].同济大学学报(自然科学版),1999,27(2):150-154. |
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| 作者姓名： | 杨玉民 胡勃 |
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| 作者单位： | 同济大学桥梁工程系 |
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| 基金项目： | 国家重大基础性研究攀登计划B,上海市青年科技启明星计划 |
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| 摘 要： | 根据连续梁桥的实际受力特点，建立了考虑下部结构非线性响应与上部结构共同作用的简化计算模型通过延性性能分析得到桥墩的非线性动力特性，采用等价线性化给出其等效动力参数，采用根据规范（ＪＴＪ００４－８９）建立的变阻尼位移反应谱，通过迭代求解全桥结构的设计地震响应，算例分析表明，提出的方法简单实用，并且具有相当精度。
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| 关 键 词： | 连续梁桥 抗震设计 反应谱 地震响应 位移 |
Displacement Response Spectrum Based Simplified Method forContinuous Beam Bridge Seismic Design |
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| Yang Yumin,Hu Bo,Yuan Wancheng.Displacement Response Spectrum Based Simplified Method forContinuous Beam Bridge Seismic Design[J].Journal of Tongji University(Natural Science),1999,27(2):150-154. |
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| Authors: | Yang Yumin Hu Bo Yuan Wancheng |
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| Abstract: | A simplified analysis method considering the interaction between superstructure and the nonlinear response of substructure is proposed.Nonlinear dynamic characteristic of piers are derived from ductility analysis and the dynamic parameters are given with equivalent linearization method.The seismic response of bridge structure is obtained with the displacement response spectrum,which is transformed from the Code(TJT004-89).With two examples,the proposed method and its accuracy are demonstrated. |
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| Keywords: | Continuous beam bridge Seismic design Response spectrum |
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