Shake table experimental study of cable-stayed bridges with two different design strategies of H-shaped towers

作     者：Xu Yan Cui Cunyu Zeng Zeng Zeng Shijie Xu Yan;Cui Cunyu;Zeng Zeng;Zeng Shijie

作者机构：State Key Laboratory for Disaster Reduction in Civil EngineeringTongji UniversityShanghai 200092China China Three Gorges Project Development Co.LtdChengdu 610041China 

基　　金：National Key Research and Development Plan,China under Grant No.2017YFC1500702 the National Natural Science Foundation of China under Grant No.51478338 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2021年第20卷第2期

页      码：483-493页

摘      要：As one of the main load-carrying components of cable-stayed bridges,bridge towers are typically required to remain elastic even when subjected to severe ground motions with a 2%-3%probability of exceedance in 50 *** fulfill this special requirement imposed by current seismic design codes,reinforcement ratios in the bridge towers have to be kept significantly higher than if limited ductility behavior of the tower is *** addition,since the foundation capacity is closely related to the moment and shear capacities of the bridge tower,a large increase in bridge construction cost for elastically designed cable-stayed bridge is *** further investigate the possibility of limited ductility bridge tower design strategies,a new 1/20-scale cable-stayed bridge model with H-shaped bridge towers designed according to strong strut-weak tower column design was *** shake table experimental results are compared with a previous strong tower column-weak strut designed full bridge model.A comparison of the results show that ductility design with plastic hinges located on tower columns,i.e.,strong strut-weak tower column design,is another effective seismic design strategy that results in only small residual displacement at the top of the tower column,even under very severe earthquake excitations.

主 题 词：cable-stayed bridge shake table experiment limited ductility design H-shaped bridge tower seismic design 

学科分类：081406[081406] 08[工学] 0814[工学-地质类] 082301[082301] 0823[工学-农业工程类] 

核心收录：

D　O　I：10.1007/s11803-021-2033-8

馆 藏 号：203102677...