高烈度区高墩连续梁桥隔震技术的有效性分析
Analysis on the Effectiveness of Seismic Isolation Technology of Continuous Bridges with High Pier in High Intensity Area
刘青兰 1唐文乐 2魏旭奇 2韦伟1
作者信息
- 1. 广东省铁路规划设计研究院有限公司,广东 广州 510699
- 2. 广州大学工程抗震研究中心,广东 广州 510006
- 折叠
摘要
针对高烈度地区高墩连续梁抗震设计存在的难题,以两座典型的高墩桥梁为例,采用数值模拟的方式对比分析了抗震设计与隔震设计在E2 地震作用下的响应结果,阐明了隔震技术在高墩连续梁上的有效性,针对隔震高墩连续梁梁端位移较大的问题,提出了有效的解决方法.
Abstract
Aiming at the problems of seismic design of high pier continuous bridges in high intensity areas,this paper takes two typical high piers as an example,and uses numerical simulation to compare and analyze the response results of seismic design and seismic isolation design under E2 earthquake,which elucidates the effectiveness of the seismic isolation technology on high pier continuous bridges,and puts forward effective solutions to the problem of large displacement of the beam end of the seismic isolation high pier continuous bridges.
关键词
高墩连续梁/隔震体系/摩擦摆支座/防落梁Key words
continuous bridges with high pier/seismic isolation system/friction pendulum support/fall proof beam引用本文复制引用
出版年
2024
NETL
NSTL
万方数据