图所示焊接连接，采用三面围焊，承受的轴心拉力设计值N=1000KN。钢材为Q235B，焊条为E43型，，试验算此连接焊缝是否满足要求。已知<img src="https://nimg.ppkao.com/2019-05/wuacheng/2019051316105080848.jpg?sign=ed4d2c636ffaef215a8c439dce083182&t=62d7474c" /><br /> <img src="https://nimg.ppkao.com/2019-05/wuacheng/2019051316110370002.jpg?sign=0097064ef5fc5618b63accedac72ef1f&t=62d7474c" />