大跨度悬索桥抗震设计与加固方法
Seismic Design and Reinforcement Method of Long-Span Supension Bridge
周筱雯1
作者信息
- 1. 同创工程设计有限公司杭州分公司,浙江 杭州 310052
- 折叠
摘要
悬索桥是一种介于梁桥和拱桥之间的桥梁形式,在跨越山谷、江河、海湾等地形条件时具有明显优势.悬索桥的抗震设计是对悬索桥在地震作用下的结构响应进行分析,提出了以增加关键构件、结构形式和调整阻尼比3种方法为主的抗震设计方案.基于地震反应分析结果,对悬索桥抗震性能进行评估,提出悬索桥减震、隔震的有效措施以及结构防震和抗震的加固方法.
Abstract
A suspension bridge is a bridge formed between a beam bridge and an arch bridge,which has advanced terrain conditions such as crossing valleys,rivers and bays.The seismic design of a suspension bridge is to study the structural response of the suspension bridge under seismic action and propose seismic design schemes based on three aspects:increasing the key components,structural form,and adjusting the damping ratio.Based on the seismic response analysis results,the seismic performance of the suspension bridge was evaluated.Besides,the measurement of reducing and seismic isolation and the reinforcement methods of the suspension bridge were proposed.
关键词
抗震设计/悬索桥/有限元分析/动力特性/减震措施/加固方法Key words
seismic design/suspension bridge/finite element analysis/dynamic characteristics/shock absorption measures/reinforcement method引用本文复制引用
出版年
2024
NETL
NSTL
万方数据