一、前言本实验性试验的任务是测定未焊透焊缝的承载能力。该任务的提出原则上是以下面的设想为前提的,即这种焊缝是造成成品缺陷的原因,而且也是设计师或工程建造师所不希望的。不允许应用未焊透焊缝构件。由于承载能力取决于载荷方向以及由于对焊缝焊透程度难以控制,而且这方面的知识也较为缺乏,所以对于结构件实际存在的工艺可靠性没有一个令 I. Preface The task of this experimental test is to determine the bearing capacity of an impervious weld. This task is proposed in principle on the assumption that the weld is the cause of the defect in the finished product and is also not desired by the designer or the construction engineer. Not allowed to apply under-penetration weld components. As the bearing capacity depends on the load direction and the degree of penetration of the weld is difficult to control, and there is a lack of knowledge in this area, there is not a single guarantee for the actual process reliability of the structure