新型桥梁双柱墩抗震性能研究  

Research on Seismic Performance of New Bridge Double Column Piers

作　　者：陈天森 闫磊 Chen Tiansen;Yan Lei(Chongqing Three Gorges University,Chongqing 404000)

机构地区：[1]重庆三峡学院,重庆404000

出　　处：《江西建材》2023年第9期74-76,共3页Jiangxi Building Materials

摘　　要：文中采用新型消能型钢系梁取代混凝土系梁,形成新型双柱墩,通过拟静力试验对比分析传统双柱墩和新型双柱墩的抗震性能及桥墩损伤情况。研究发现,传统双柱墩发生弯曲变形,而新型双柱墩的损伤主要集中于新型系梁的消能段,桥墩损伤较小,达到了预期设计目的。新型双柱墩滞回曲线饱满,抗震性能明显优于传统混凝土双柱墩。By replacing concrete beams with the new energy-dissipating steel beams,a novel dual-column pier is formed.Through a quasi-static test,the seismic performance and pier damage of traditional and new dual-column piers were compared and analyzed.The research revealed that the traditional dual-column piers perform bending deformation,while the new type of dual-column piers primarily incur damage in the energy-dissipating section of the new steel tie beams.The damage to the piers is minimal,achieving the intended design purpose.The hysteresis curve of the new dual-column piers exhibits a typical'rectangular'shape,and their seismic performance is significantly superior to that of traditional concrete dual-column piers.

关 键 词：系梁 消能型双柱墩 分级耗能 

分 类 号：U445[建筑科学—桥梁与隧道工程]