| 考虑支座摩擦滑移的非规则曲线桥梁抗震性能研究 |
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| 引用本文： | 闫磊,李青宁,刘芳平,申纪伟,程龙飞,杨茂,郭远臣.考虑支座摩擦滑移的非规则曲线桥梁抗震性能研究[J].世界地震工程,2018,34(1):087-97. |
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| 作者姓名： | 闫磊 李青宁 刘芳平 申纪伟 程龙飞 杨茂 郭远臣 |
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| 作者单位： | 1. 重庆三峡学院 土木工程学院, 重庆 万州 404100;2. 西安建筑科技大学 土木工程学院, 陕西 西安 710055 |
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| 摘 要： | 为研究支座摩擦滑移对非规则曲线桥梁抗震性能的影响，建立考虑支座摩擦滑移的非规则桥梁空间耦联模型，研究支座刚度及支座摩擦系数对其地震响应的影响。结果表明:支座摩擦滑移可以明显消耗地震能量，降低墩底弯矩，有效避免桥墩墩底塑性铰的形成；支座摩擦系数和初始刚度的选择对非规则曲线桥梁加速度减震率及梁体位移影响较大，应根据参数最优匹配的方法选取其最优组合。
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| 关 键 词： | 摩擦滑移 耦联模型 加速度 位移 最优匹配 |
Study on seismic behavior of irregular curved bridges considering bearing friction sliding |
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| YAN Lei,LI Qingning,LIU Fangping,SHEN Jiwei,CHENG Longfei,YANG Mao,GUO Yuanchen.Study on seismic behavior of irregular curved bridges considering bearing friction sliding[J].World Information On Earthquake Engineering,2018,34(1):087-97. |
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| Authors: | YAN Lei LI Qingning LIU Fangping SHEN Jiwei CHENG Longfei YANG Mao GUO Yuanchen |
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| Affiliation: | 1. College of Civil Engineering. Chongqing Three Gorges University, Chongqing 404100, China;2. College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China |
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| Abstract: | In order to study the seismic behavior of irregular curved bridges considering bearing friction sliding, a space-coupling model concerning bearing friction sliding was constructed, and the impacts of bearing stiffness and frictional ratio on dynamic response of the kind of bridge were studied. Results shows that bearing sliding can largely dissipate seismic energy, reduce bending moment at the bottom of pier, thus avoid the appearance of plastic hinge at the area; the initial bearing stiffness and frictional ratio should be chosen accorrding specific structural style, which have a great significance on acceleration shock absorption rate of an irregular curved bridge. |
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| Keywords: | friction-sliding coupled model acceleration displacement optimal matching |
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