本文通过一系列光弹性实验结果,得出了焊缝处应力集中系数K_t与焊缝处加强高H/t、焊缝宽度W/t及焊趾根部角度θ、焊缝与母材之间过渡圆弧ρ之关系曲线。在此基础上选择了几块不同加强高、不同焊趾角、不同过渡圆弧的爆炸对接焊缝钢板和角接肋骨构架进行了爆炸鼓胀试验,试验结果证明应力集中程度的高低对抗爆性能有着明显的影响。 In this paper, a series of photoelastic experiment results show that the stress concentration factor K_t at the weld and the high H / t at the weld, the weld width W / t and the angle at the root of the weld toe, the transition between the weld and the base metal Arc ρ curve. On this basis, several explosive butt-welded steel plates and angle-ribbed steel frames with different height, different weld toe angles and different transition arcs were selected and tested. The experimental results show that the stress concentration degree has the effect of antiknock performance Obvious impact.