| 拉索支座减隔震桥梁自适应推倒分析方法 |
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| 引用本文： | 曹飒飒,袁万城.拉索支座减隔震桥梁自适应推倒分析方法[J].同济大学学报(自然科学版),2015,43(5):0668-0675. |
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| 作者姓名： | 曹飒飒 袁万城 |
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| 作者单位： | 同济大学 土木工程防灾国家重点实验室，上海 200092;广州大学 土木工程学院,广东 广州 510006,同济大学 土木工程防灾国家重点实验室，上海 200092 |
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| 基金项目： | 国家自然科学基金资助项目（51478339,51278376,90915011）, 土木工程防灾国家重点实验室基金资助项目SLDRCE14-B-14 |
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| 摘 要： | 以拉索支座减隔震桥梁为研究对象,提出了自适应推倒分析方法(AMPP),对比多模态推倒分析方法(MPA)和一阶模态推倒分析方法(PO-1),研究AMPP方法应用于这类桥梁抗震性能评估的可行性及效果.结果表明:推倒分析方法可以成功应用于拉索支座减隔震桥梁的抗震性能评估,AMPP方法对关键参数的计算精度高于一阶模态推倒分析和多模态推倒分析,但多模态推倒方法对下部构件的内力评估精度较好.
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| 关 键 词： | 拉索减隔震支座桥梁 自适应推倒分析方法 多模态推倒分析 斜拉桥 |
| 收稿时间： | 2014/4/30 0:00:00 |
| 修稿时间： | 2/5/2015 12:00:00 AM |
Pushover Analysis Method of Cable sliding Friction Aseismic Bearing Bridges |
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| CAO Sasa and YUAN Wancheng.Pushover Analysis Method of Cable sliding Friction Aseismic Bearing Bridges[J].Journal of Tongji University(Natural Science),2015,43(5):0668-0675. |
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| Authors: | CAO Sasa and YUAN Wancheng |
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| Institution: | State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;College of Civil Engineering, Guangzhou University, Guangzhou 510006, China and State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | An adaptive mass proportional pushover(AMPP) analysis method is proposed for pushover analysis of aseismic bridges with cable sliding friction bearing. Compared with modal pushover analysis(MPA) and first mode pushover analysis(Po 1) method, the applicability and effectivity of AMPP method for seismic performance evaluation of aseismic bridges with cable sliding friction bearing are studied. It turns out that pushover analysis method can be applied to evaluate seismic performance responses of aseismic bridges with cable sliding friction bearing. Compared with Po 1 and MPA, AMPP can lead to the attainment of improved predictions of key response parameters. MPA provides a good estimation for internal forces of substructure elements. |
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| Keywords: | aseismic bridges with cable sliding friction bearing adaptive mass proportional pushover(AMPP) analysis method modal pushover analysis(MPA) cable stayed bridge |
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