The formula calculating the initial stiffness of weldedconnection of steel frame was drawn according to bending deformation mechanism of joint zone of welded steel frame.
先从梁柱节点受弯变形的机理入手，推导出钢框架梁柱焊接连接节点的初始刚度计算公式。
2
The configuration, shape, main parameters and important components of beam-column weldedconnection with welded haunch in steel moment-frame are presented, and its aseismic performance is discussed.
介绍了钢结构加腋型梁柱焊接节点的结构、形状、主要参数与重要部件，并对其抗震性能进行了探讨。
3
HDPE pipe to connect the use of hot-melt or fused welded casing connection.