同济大学学报（自然科学版）2025，Vol.53Issue(2)：159-166,8.DOI:10.11908/j.issn.0253-374x.23134
特大跨越江悬索桥龙卷风致静力响应
Tornado-Induced Static Structural Response of Suspension Bridges Spanning Across Large River
摘要
Abstract
Based on the previous tornado-induced wind load identification results of long-span bridges,the calculation and analysis of the tornado-induced responses of a long-span suspension bridge were conducted,and the tornado-induced responses were further compared with the synoptic wind-induced responses to discuss the possibility of using synoptic wind load in tornado-resistant design of bridges.The results show that,the influence of tornado load is local,and the lift force is relatively significant,which differs from that of the synoptic wind load.The tornado-induced structural responses of the suspension bridge can be influenced by parameters such as the swirl ratio,relative distance of the tornado,and the axial position of the loading points,whose impacts vary with different types of structural responses.Synoptic wind-induced responses differ both qualitatively and quantitatively from tornado-induced responses,leading to unresolved issues regarding load equivalence between the two.关键词
龙卷风/风荷载/悬索桥/响应分析Key words
tornado/wind load/suspension bridge/response analysis分类
建筑与水利引用本文复制引用
操金鑫,杨一,曹曙阳,葛耀君..特大跨越江悬索桥龙卷风致静力响应[J].同济大学学报（自然科学版）,2025,53(2):159-166,8.基金项目
国家自然科学基金(52178502,51878504) （52178502,51878504）
国家重点研发计划(2022YFC3803002) （2022YFC3803002）
土木工程防灾减灾全国重点实验室自主课题(SLDRCE19-B-01) （SLDRCE19-B-01）
