非对称矮塔斜拉桥桥塔抗震性能分析  

Research on Tower Seismic Behavior of Cable-stayed Bridge with Asymmetric Dwarf Towers

作　　者：李自林[1] 马嘉蓬 刘治德[2] 

机构地区：[1]天津城市建设学院天津市软土特性与工程环境重点实验室,天津300384 [2]天津市海河建设发展投资有限公司,天津300380

出　　处：《石家庄铁道大学学报（自然科学版）》2013年第4期15-19,共5页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

基　　金：天津市自然科学基金(13JCYBJC19600)

摘　　要：为研究高桥墩非对称矮塔斜拉桥桥塔和桥墩的抗震性能,基于桥梁抗震中反应谱分析理论,以一座高桥墩铁路矮塔斜拉桥为工程背景,建立其整桥模型和裸塔模型,进行模态分析和内力位移分析,并对桥塔在整桥状态下和裸塔状态下进行对比研究。研究表明,在相同地震力作用下,整桥振型周期较大,顺桥向裸塔与整桥的桥塔有明显的差别。In order to study the high piers non-symmetric the dwarf tower cable-stayed bridge towers seismic performance-based bridge seismic reaction spectrum analysis theory, low tower cable-stayed bridge, a high pier railway engineering background, and the establishment of the entire bridge model and bare tower model, modal a- nalysis and force and displacement analysis, and comparative study of the state of bare tower and bridge towers in the state of the entire bridge. The study shows that the entire bridge modes cycle, and in the same seismic force under longitudinal bridge a significant difference.

关 键 词：非对称 高桥墩 矮塔斜拉桥 反应谱分析 

分 类 号：U24[交通运输工程—道路与铁道工程]