| 强震作用下连续箱梁桥破坏的反应谱分析 |
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| 引用本文： | 常立峰.强震作用下连续箱梁桥破坏的反应谱分析[J].山西交通科技,2012(2):38-40. |
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| 作者姓名： | 常立峰 |
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| 作者单位： | 山西省交通科学研究院,山西太原030006 |
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| 摘 要： | 基于反应谱分析法，揭示了强震作用下箱梁桥破坏机制。考虑3种工况，运用有限元软件Midas对连续箱梁桥破坏进行数值模拟，从全桥地震反应谱位移图发现了强震作用下桥台台顶变形位移值十分明显。通过对主梁内力响应变化规律研究，揭示了横、纵向地震控制梁桥破坏的不同内力；证明了桥墩和跨中截面属于地震响应敏感部位。
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| 关 键 词： | 桥梁工程 反应谱 强震 作用 数值 模拟 |
Response Spectrum Analysis on Continuous Box Girder Bridges Damage under Severe Earthquake |
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| CHANG Li-feng.Response Spectrum Analysis on Continuous Box Girder Bridges Damage under Severe Earthquake[J].Shanxi Science & Technology of Communications,2012(2):38-40. |
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| Authors: | CHANG Li-feng |
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| Institution: | CHANG Li-feng (Shanxi Provincial Research Institute of Communications, Taiyuan,Shanxi 030006,China) |
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| Abstract: | Based on response spectrum analysis,the paper discussed the failure mechanism of continuous box girder bridge s under severe earthquake. Through the study of the internal force responses of girder,it indicated different internal force for transversal and longitudinal earthquake control, and proved that the pier and mid-span are seismic response sensitivity parts. |
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| Keywords: | bridge engineering response spectrum severe earthquake action value simulation |
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