波形钢腹板变截面曲线刚构桥地震反应分析  

Seismic Response Analysis of Curved Rigid-frame Bridges with Variable Cross-section in Corrugated Steel Webs

作　　者：汪扬[1] 李勇[2] 张弛 林树锋 宋晓婷 WANG Yang;LI Yong;ZHANG Chi;LIN Shu-feng;SONG Xiao-ting(School of Architecture and Engineering,Anqing Vocational and Technical College,Anqing 246003,China;China Railway First Bureau Group Fifth Engineering Company Limited,Baoji 721006,China;Anhui CITIC Engineering Consulting Company Limited,Anqing 246003,China;Guangzhou Development Zone Municipal Facilities Management Center,Guangzhou 510700,China;School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]安庆职业技术学院建筑工程学院,安庆246003 [2]中铁一局集团第五工程有限公司,宝鸡721006 [3]安徽中信工程咨询有限责任公司,安庆246003 [4]广州开发区市政设施管理中心,广州510700 [5]武汉理工大学交通与物流工程学院,武汉430063

出　　处：《武汉理工大学学报》2024年第11期58-62,69,共6页Journal of Wuhan University of Technology

基　　金：教育部国家级职业教育教师教学创新团队课题研究项目(YB2020070202);2021年高校优秀青年骨干教师国内访问研修项目(gxgnfx2021205)。

摘　　要：以一座波形钢腹板变截面箱梁高墩连续曲线刚构桥为实例,采用有限元分析方法,建立该桥模型,施加E1和E2地震反应谱,通过对该桥主梁和主墩的响应进行分析,研究该桥的抗震性能。结果表明:E1和E2横桥向、顺桥向、竖向地震作用下,在3个方向上均产生位移响应,且E1地震作用与E2地震作用的模式相似,E2地震作用引起的响应大于E1;对E2地震下的应力响应进行分析,主跨和边跨跨中出现较大应力,4个主墩分别在中部和底部容易出现较大应力;地震在3个方向上的响应按照平方和进行组合计算,发现不同方向地震作用下主梁的最大组合位移均大于主墩。Taking a wave-shaped steel-web variable-section box girder high-pier continuous curved arch bridge as an example,a finite element analysis method was used to establish the bridge model,E1and E2seismic response spectra were applied to analyze the response of the main beam and main pier of the bridge and to study the seismic performance of the bridge.The results show that,in the horizontal,vertical,and longitudinal earthquake actions on E1and E2lateral bearings,there are displacement responses in all three directions,and the earthquake response pattern of E1is similar to that of E2,and the response caused by E2is greater than that of E1.The stress response of E2earthquake is analyzed,and large stresses appear at the midspan and the middle of the side spans.Large stresses are likely to appear at the middle and the bottom of the four main piers.The combination of the responses in the three directions is calculated according to the square sum,and it is found that the maximum combined displacement of the main beam in different earthquake actions is greater than that of the main pier.

关 键 词：波形钢腹板 组合结构 抗震性能 曲线梁桥 刚构桥 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]