The effect of joint geometry, parameters and loading modes on fatigue strength of welded tubular joints are studied. The test results are compared with the related design curves such as those of AWS, API, DnV and the basic T curve.

• 试验中应用动应变测量、目测法及变载荷刻痕法观测管节点表面裂纹的萌生及扩展的特征,研究了管节点尺度、参数及载荷形式对疲劳强度的影响,并将试验结果与AWS、API、DnV及基本T曲线等有关设计曲线进行了比较。