welded connection

Based on the viewpoint of limit analysis, two equations can be used to evaluate the plastic limit pressures of welded branch pipe tee connection are proposed.

基于极限分析的观点，得到了两个适于工程上采用的等径三通塑性极限压力估算式，并结合试验数据进行了验证和影响因素分析。

The results indicate that the elevated temperature curves with different temperature rise rates can significantly affect fire-resistance time of welded connection joint in fire.

结果表明：具有不同升温速率的火灾曲线对全焊节点到达极限状态的时间有显著影响；

During the Spiral welded pipe production, the main reasons of manual bend caused in strip steel are unusual aline of strip steel in strip steel connection weld process.

在螺旋焊管生产过程中，钢带产生人为硬弯的主要原因是对头焊工序中钢带不能对齐所致。

Finite element stress analysis of welded steel structure beam to column connection with artificial crack

带人工裂纹的焊接钢结构梁柱节点有限元应力分析