异形拱桥拱圈交点处局部应力分析  

Analysis of Local Stress at the Intersection of Arch Rings of Special-shaped Arch Bridges

作　　者：李维华 姜徐磊 黄贤增 喻济昇 郭小平 LI Weihua;JIANG Xulei;HUANG Xianzeng;YU Jisheng;GUO Xiaoping(China Nerin Engineering Co.,Ltd.,Nanchang,Jiangxi 330038,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610036,China;China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan,Hubei 430050,China)

机构地区：[1]中国瑞林工程技术股份有限公司,江西南昌330038 [2]西南交通大学土木工程学院,四川成都610036 [3]中铁大桥勘测设计院集团有限公司,湖北武汉430050

出　　处：《有色冶金设计与研究》2022年第5期39-43,共5页Nonferrous Metals Engineering & Research

摘　　要：为了研究异形拱桥拱圈交点处局部应力特征,利用ANSYS有限元分析软件建立拱圈交点处的模型并对其受力行为进行分析,按照实际情况施加边界荷载,探讨了在基本组合最大值与基本组合最小值两类工况下拱圈交点处的应力情况,得出了拱圈交点不同位置处的应力分布。研究结果表明,在拱上交点角点处易出现应力集中现象,设计中应重点关注。In order to study the local stress characteristics at the intersection of arch rings of special-shaped arch bridges, the ANSYS finite element analysis software was used to establish the model at the intersection of arch rings and analyze its stress behavior. The boundary load was applied according to the actual condition. The paper discusses the stress at the intersection of arch rings under the two working conditions of the basic combination maximum and minimum values to obtain the stress distribution at different positions of the intersection of arch rings. The results show that the stress concentration is easy to occur at the corner of the arch intersection, which should be paid more attention in the design.

关 键 词：桥梁设计 异形拱桥 拱圈交点 有限元模型 应力分析 

分 类 号：TU997[建筑科学—市政工程]