带剪切连梁的双柱式桥墩抗震性能分析方法与试验验证.pdf
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第33 卷第7 期 Vol.33 No.7 工 程 力 学
2016 年 7 月 July 2016 ENGINEERING MECHANICS 176
文章编号:1000-4750(2016)07-0176-08
带剪切连梁的双柱式桥墩
抗震性能分析方法与试验验证
1 2
谢 文 ,孙利民
(1. 宁波大学建筑工程与环境学院,浙江,宁波 315211 ;2. 同济大学土木工程防灾国家重点实验室,上海 200092)
摘 要:在带剪切连梁的双柱式桥墩拟静力试验研究基础上,该文建立了带剪切连梁的双柱式桥墩的集中塑性铰
和纤维单元分析方法并进行了抗震性能分析,比较分析了各模型的墩柱剪力-位移滞回曲线及其骨架曲线与耗能能
力、剪切连梁滞回曲线及其耗能能力等性能参数。结果表明:采用集中塑性铰和纤维单元分析方法预测的抗震性
能与试验结果吻合较好,且两种分析方法能合理反映桥墩最大荷载后的强度下降、刚度退化和耗能水平下降等现
象,表明该方法是分析带剪切连梁的双柱式桥墩抗震性能的有效可靠方法。
关键词:双柱式桥墩;剪切连梁;集中塑性铰模型;纤维单元模型;累积滞回耗能
中图分类号:U442.55 文献标志码:A doi: 10.6052/j.issn.1000-4750.2014.12.1056
ANALYTICAL METHODS AND EXPERIMENTAL VALIDATION OF
SEISMIC PERFORMANCE OF A TWIN-COLUMN PIER
WITH SHEAR BEAM
1 2
XIE Wen , SUN Li-min
(1. Faculty of Architectural, Civil Engineering And Environment, Ningbo University, Ningbo, Zhejiang 315211, China;
2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)
Abstract: Based on pseudo-static tests of a twin-column pier with shear beam, the concentrated plastic hinge
and fiber element methods are established to analyze the seismic performance of the twin-column pier with shear
beam. The numerical seismic performance results are compared with the experimental results including hysteretic
curve, skeleton curve, and dissipation energy capacity of the twin-column pier, and hysteretic curve and
dissipation energy capacity of the shear beam. The comparison shows that the s
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