焊接残余应力对钢板梁极限承载力的影响

Effects of Welding Residual Stress on Ultimate Carrying Capacity of Steel Girders

用作者提出的钢板梁面内极限荷载的半解析初应力解法,定量地分析了残余应力对钢板梁面内极限承载力的影响,并与试验结果进行了比较.数值结果表明,残余应力降低钢板梁的极限承载力在10%以内.

The effects of welding residual stress on in-plane ultimatecarrying capacity of steel girders are studied with the help ofthe semi-analytical initial stress method of steel girder in-plane ultimate loads presented by the authors,and the result iscompared with the experimental results.It shows that weldingresidual stress reduces the ultimate carrying capacity of steelgirders within 10% limits.