| 汶川地震及中国公路桥梁抗震设计规范的变迁 |
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| 引用本文： | 刘健新,赵国辉,李加武.汶川地震及中国公路桥梁抗震设计规范的变迁[J].长沙交通学院学报,2009,25(1). |
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| 作者姓名： | 刘健新 赵国辉 李加武 |
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| 作者单位： | 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064 |
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| 摘 要： | 根据汶川地震的震源机理和桥梁震害的特点,在断裂带南段,桥梁结构以强度失效型破坏为主;而在北段以位移型破坏为主.对由汶川地震推动刊布实施的公路桥梁抗震设计细则和中国前两代公路桥梁抗震设计规范的内容进行了对比分析,并回顾了中国三代公路桥梁抗震设计规范的变迁.提出了新桥梁抗震细则在抗震设计理念、设计方法及抗震措施方面的新特点.
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| 关 键 词： | 汶川地震 桥梁震害 抗震设计规范 抗震设计理念 延性设计 |
Wenchuan Earthquake and changes of the specifications for seismic design of highway bridges in China |
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| LIU Jian-xin,ZHAO Guo-hui,LI Jia-wu.Wenchuan Earthquake and changes of the specifications for seismic design of highway bridges in China[J].Journal of Changsha Communications University,2009,25(1). |
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| Authors: | LIU Jian-xin ZHAO Guo-hui LI Jia-wu |
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| Institution: | Bridge and Tunnel Key Laboratory of Shanxi Province;Chang'an University;Xi'an 710064;China |
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| Abstract: | According to earthquake source process of Wenchuan Earthquake and the damage characteristics of highway bridges,the damage style of the highway bridges is strength failure in the southern part of the fault,while in the northern part,the damage style is displacement failure.New guidelines for seismic design of highway bridges was implemented after Wenchuan Earthquake,the comparison between the new guidelines and the former two generations of specifications is done.And a brief review of changes of the specifi... |
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| Keywords: | Wenchuan Earthquake bridge damage specification for seismic design seismic design philosophy ductility design |
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