钢箱梁焊接应力分布规律及消除方法研究  

Study on Welding Stress Distribution Rule and Relieving Method of Steel Box Girder

作　　者：刘鹏[1] 杜百计[1] 吴振[1] 徐胜乐[1] 

机构地区：[1]西安市政设计研究院有限公司,陕西西安710068

出　　处：《城市道桥与防洪》2015年第2期158-161,171,共5页Urban Roads Bridges & Flood Control

摘　　要：以三跨连续钢箱梁为研究对象,采用超声波冲击应力消除法对钢箱梁进行焊接应力消除。通过对消除前、后的焊接残余应力进行测量,得到焊接应力大小及分布规律;同时验证超声波冲击焊接应力消除法对钢箱梁焊接应力消除的效果。Taking the steel three-span continuous box girder as the study object, the ultrasonic impact stress relieving method is used to relieve the welding stress of steel box girder. The welding stress amplitude and distribution rule are obtained by the measurement of surplus welding stresses before and after relieved, which can also validate the effect of ultrasonic impact stress relieving method on the welding stress relieving of steel box girder.

关 键 词：钢箱梁焊接应力 超声波冲击焊接应力消除 应力分布规律 

分 类 号：U448.28[建筑科学—桥梁与隧道工程]