| 高低塔斜拉桥抗震设计分析 |
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| 引用本文： | 何琦琪,吴应升,商从晋.高低塔斜拉桥抗震设计分析[J].西部交通科技,2014(6):54-59. |
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| 作者姓名： | 何琦琪 吴应升 商从晋 |
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| 作者单位： | 广西壮族自治区交通规划勘察设计研究院,广西南宁530029 |
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| 摘 要： | 高低塔斜拉桥由于结构不对称,使其受力特性也体现出不对称性,因此对此类桥梁的抗震分析显得尤为重要。文章以广西某特大桥为工程实例,建立空间有限元模型进行抗震分析,对设置阻尼器提高桥梁抗震性能提供了可靠的理论依据,并介绍了有限元分析的详细过程,可为今后同类桥梁的抗震设计提供参考。
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| 关 键 词： | 高低塔斜拉桥 双索面 抗震分析 振型叠加法 阻尼器 |
Analysis of Seismic Design for High-lower Tower Cable-stayed Bridge |
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| HE Qi-qi,WU Ying-sheng,SHANG Cong-jin.Analysis of Seismic Design for High-lower Tower Cable-stayed Bridge[J].Western China Communication Science & Technology,2014(6):54-59. |
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| Authors: | HE Qi-qi WU Ying-sheng SHANG Cong-jin |
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| Institution: | (Guangxi Communication Planning Surveying and Designing Institute, Nanning, Guangxi,530029) |
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| Abstract: | Due to the structure asymmetry,the force characteristics of high-lower tower cable-stayed bridge also shows the asymmetry,and therefore the seismic analysis for such bridges is particularly important.Taking a bridge in Guangxi as the engineering example,this article established the spatial finite element model for seismic analysis,provided the reliable theoretical basis to improve the seismic performance of the bridge by setting the damper,and described the detail process of finite element analysis,thereby providing the reference for future seismic design of similar bridges. |
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| Keywords: | High-low tower cable-stayed bridge Double cable planes Seismic analysis Modal superposition method Damper |
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