东南大学学报（英文版）2025，Vol.41Issue(3)：338-347,10.DOI:10.3969/j.issn.1003-7985.2025.03.009
采用验证数值模型的耗能连梁-自复位双柱式桥墩耗能与自复位性能的参数敏感性分析
Sensitivity analysis of parameters influencing ED and self-centering capacity in self-centering bridge bents with ED beams using validated numerical model
摘要
Abstract
A self-centering bridge bent equipped with energy-dissipation(ED)beams is proposed.Quasi-static tests are conducted on self-centering bridge bents,both with and without ED beams,to validate the accuracy of the corre-sponding numerical models.The effects of various param-eters,such as the web area of ED beams,prestressing force of tendons,tendon arrangements,and number of column segments,on the seismic performance of self-centering bridge bents with ED beams are evaluated using the vali-dated numerical model.The results demonstrate that the nu-merical models accurately replicate the quasi-static test re-sults,with average errors in the lateral force remaining be-low 9.6%.The web area of ED beams significantly affects the strength,cumulative energy dissipation,and relative self-centering index(RSI)of the self-centering bridge bents.Increasing the prestressing force enhances the lateral force and self-centering capability of the bridge bents but has minimal effect on their ED capacity.Reducing the num-ber of segments in each column enhances the lateral force and cumulative hysteretic energy dissipation of the self-centering bridge bents while exerting an insignificant ef-fect on the RSI.Thus,the proposed novel system is highly suitable for double-or multicolumn piers supporting bridges in regions prone to strong earthquakes.关键词
自复位双柱式桥墩/耗能连梁/能量耗散/自复位性能/拟静力试验/数值验证Key words
self-centering bridge bents/energy-dissipation beams/energy dissipation/self-centering capacity/quasi-static test/numerical validation分类
交通工程引用本文复制引用
谢文,包洋洋,铁宁,洪扬帆..采用验证数值模型的耗能连梁-自复位双柱式桥墩耗能与自复位性能的参数敏感性分析[J].东南大学学报（英文版）,2025,41(3):338-347,10.基金项目
The National Natural Science Foundation of China(No.52278189),Zhejiang Provincial Natural Science Foundation of China(No.LY24E080002). （No.52278189）
