单项选择题
如下图所示节点板受斜向拉力设计值600kN,节点板与构件用双面角焊缝连接,hf=8mm,采用E43××型焊条,焊缝长度l=()。
A.260mm B.310mm C.360mm D.410mm
A.126mm B.135mm C.298mm D.193mm
A.165.4N/mm2 B.176.6N/mm2 C.184.4N/mm2 D.191.2N/mm2