| 简支钢桁梁桥作三维地震反应分析的支座地震力 |
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| 引用本文： | 陈兴冲,朱晞. 简支钢桁梁桥作三维地震反应分析的支座地震力[J]. 兰州理工大学学报, 1994, 0(1) |
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| 作者姓名： | 陈兴冲 朱晞 |
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| 作者单位： | 兰州铁道学院 |
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| 摘 要： | 探讨了将墩桁作为共同工作系统，进行铁路简支铜桁梁桥的三维地震反应分析来计算支座地震力的方法。分析了支座在地震时的受力机制．通过算例给出了支座的水平地震力和竖向地震力，并与传统的静力分析方法、单墩模型及单桁模型的计算作了比较。为钢桁梁桥支座的抗震设计提供了参考依据。
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| 关 键 词： | 桥梁支座，桥墩，地震荷载，精架桥，地震反应分析 |
Seismic Loads of Simply Supported Steel Truss Bridges Based on the Three-dimensional Seismic Analysis |
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| Chen Xingchong,Zhu Xi. Seismic Loads of Simply Supported Steel Truss Bridges Based on the Three-dimensional Seismic Analysis[J]. Journal of Lanzhou University of Technology, 1994, 0(1) |
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| Authors: | Chen Xingchong Zhu Xi |
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| Abstract: | An calculation method for the bearing seismic loads of railway steel truss bridgesis discussed using the 3-D analysis of seismic reaction with a pier-truss interaction model,The seismic mechanism of the bearings is studied.The longitudinal and transverse seismicloads of the bearings are calculated for illustration of the method presented,and the resultsare compared with the results ohtained by a single-pier model and a single-truss model.Thismethod provides a reference for the anti-seismie desiqning of the bearing of steel trussbridges. |
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| Keywords: | bridge supports bridge piers seismic load truss bridges seismic responseanalvsis |
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