台风“杜苏芮”期间某大跨径斜拉桥结构响应分析  

Structural Response Analysis of a Long-span Cable-stayed Bridge During Typhoon Doksuri

作　　者：高艳滨 GAO Yan-bin(CCCC Highway Planning and Design Institute Co.,Ltd.,Beijing 100010,China)

机构地区：[1]中交公路规划设计院有限公司,北京100010

出　　处：《价值工程》2025年第13期19-21,共3页Value Engineering

摘　　要：台风是一种特定的自然现象,常带来狂风、暴雨和风暴潮。沿海地区的大跨度桥梁在其运营期内不免会遭受台风,引起桥梁的大幅振动。本文基于某大跨斜拉桥结构健康监测系统监测得到的在超强台风“杜苏芮”下的作用和结构响应数据,分析了台风的风特征、风致结构响应。结果表明在台风下大桥产生限幅强迫振动,随着风速的增大,大桥的主梁挠度、塔顶偏位、主梁竖向和横向振动加速度、斜拉索振动加速度随之增大,但对斜拉索的索力几乎没有影响。A typhoon is very specific natural phenomenon that often brings strong winds,heavy rain and storm surges.Long-span bridges have usually experienced typhoons during service age,which will cause large vibration.In this paper,the wind characteristics and wind-induced structural response of a long-span cable-stayed bridge are analyzed based on the monitoring data of the structure health monitoring system under super typhoon Doksuri.The results show that the limiting forced vibration of the bridge occurs under typhoon.And the wind induced response also increased when the wind speed,such as the deflection,the displacement and the vibration acceleration.But the cable force is almost not affected by the typhoon.

关 键 词：台风“杜苏芮” 斜拉桥 健康监测 结构响应 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]