The formula calculating the initial stiffness of welded connection of steelframe was drawn according to bending deformation mechanism of joint zone of weldedsteelframe.
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
Frame: plate type channel steelwelded with green paint color. Surface.
机架：板型槽钢与钢板焊接而成。表面油漆颜色为绿色。
3
The frame number marks, made of steel plate shall be welded and painted on the hatch coaming and bulwark at the place of every 10 frame-space and at every bulkhead.