板桁结合加劲梁弦杆焊接残余应力影响研究  

Study on the Influence of Residual Stress in String Welding of Plate-Girder with Stiffened Beam

作　　者：潘济 王盛铭 程翔 闫勇[2] PAN Ji;WANG Sheng-ming;CHENG Xiang;YAN Yong(Wenzhou Oujiangkou Bridge Co.Ltd.,Wenzhou 325027,China;Southwest Jiaotong University,Chengdu 610031,China;Zhejiang Digital Technology Co.Ltd.,Hangzhou 310006,China)

机构地区：[1]温州瓯江口大桥有限公司,浙江温州325027 [2]西南交通大学,成都610031 [3]浙江数智交院科技股份有限公司,杭州310006

出　　处：《工程建设与设计》2024年第8期49-51,共3页Construction & Design for Engineering

基　　金：浙江省交通运输厅科研计划项目(2018008)。

摘　　要：为明确板桁结合加劲肋弦杆焊接残余应力分布特征,研究弦杆顶板焊接对腹板高强螺栓应力的影响。以温州瓯江北口大桥为背景,基于ABAQUS软件建立加劲梁下弦杆局部三维有限元模型,结合现场焊接顺序对焊接温度场和应力场进行数值模拟。In order to clarify the distribution characteristics of residual stress in welding of stringer with stiffener,the influence of welding of stringer top plate on the stress of high-strength bolt of web was studied.Based on the Beikou Bridge of Oujiang River in Wenzhou,the local three-dimensional finite element model of the lower chord of the stiffened beam was established based on ABAQUS software,and the welding temperature field and stress field were numerically simulated according to the welding sequence.

关 键 词：板桁结合 弦杆 焊接残余应力 高强螺栓应力 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]