为研究梁柱节点焊接残余应力的分布规律，对梁柱节点焊接残余应力进行了数 值模拟，并进行了试验验证． 首先，建立梁柱节点焊接全过程随机热力学模型，分析梁柱节 点的焊接温度场;其次，通过间接热力耦合分析法分析梁柱节点焊接残余应力分布;最后， 通过制作梁柱焊接节点，利用盲孔法测得梁柱节点焊接残余应力，并与模拟结果对比分 析． 分析结果表明:上、下翼缘焊缝由于距离较远以及工艺孔的存在，焊缝之间的相互影响 很小，两者的焊接残余应力基本一致;腹板焊缝之间由于距离很近，焊接时的相互影响较 大，两道焊缝残余应力分布不一致;在梁柱节点焊缝焊趾区域，梁上、下翼缘焊缝残余应力 分布基本一致，等效残余应力呈 V 型分布，横向、纵向、法向焊接残余应力都基本呈 M 型 分布，因腹板两道焊缝焊接时产生相互影响导致梁腹板两道焊缝应力分布差别明显． 

The welding residual stress of beamto-column joints was simulated by finite element software in order to study the distribution of welding residual stress in beamto-column joints，and the experimental verification was carried out． Firstly，a stochastic thermodynamic model for the whole welding process of beamto-column joints was established to analyze the welding temperature field of beamto-column joints． Secondly，the distribution of welding residual stress of beamto-column joints was analyzed by indirect thermalstructural coupled analysis． Finally，the welding residual stress of beamto-column joints was measured by the blind hole method and compared with the simulation． The results show that due to the far distance between the upper and lower flange welds and the existence of process holes， the interaction between the welds is very small，and the welding residual stresses of the two welds are basically the same; owing to the close distance between the web welds and the great interaction between the two welds， the distribution of the residual stresses of the two welds is inconsistent; in the weld toe area of beamto-column joints， the distribution of residual stresses in the upper and lower flanges of beams is basically the same， the equivalent residual stresses are“V”type distribution， the horizontal， longitudinal and normal residual stresses are basically“M”type distribution，while the stress distributions of the two welds in the web of beams are obviously different，and the reason is that the two welds of web have mutual influence during welding．