矩形钢管混凝土柱-软钢板组合高墩地震模拟振动台试验  

Shaking Table Test of Rectangular CFST Column-Mild Steel Plate Composite Tall Piers

作　　者：张钰坤 危兴晨 陈思超 徐先模 王尉廷 卓卫东[1] ZHANG Yukun

机构地区：[1]福州大学土木工程学院,福建福州350108

出　　处：《福建建设科技》2024年第2期88-92,共5页Fujian Construction Science & Technology

基　　金：福建省交通运输科技发展计划项目(201803);福州大学2021年国家级大学生创新创业训练计划项目(202210386014)。

摘　　要：在矩形钢管混凝土柱-软钢板组合高墩试设计基础上,设计制作了2个比例缩尺模型,开展地震模拟振动台试验,对新型组合高墩的抗震性能进行初步验证。试验结果表明,新型组合高墩模型的地震反应受到地震动频谱特性和场地类别的显著影响,软弱土会放大其地震反应;在频遇地震作用下整体处于弹性状态,在强烈地震作用中,软钢板将率先屈服耗能。Based on the trial design results of rectangular concrete filled steel tubular(CFST)column-mild steel plate composite tall piers,two scaled models were designed and manufactured.Seismic simulation shaking table tests were conducted to preliminarily verify the seismic performance of the composite tall pier.The results of experiments show that the seismic responses of the composite tall pier models are significantly influenced by the seismic frequency spectrum characteristics and site category,and weak soil will amplify its seismic responses;The composite tall pier models are in an overall elastic state under frequent earthquakes,and the mild steel plates will yield first and dissipate energy under strong earthquakes.

关 键 词：组合高墩 消能减震 可更换构件 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]