WELDS- STATIC AND FATIGUE STRENGTH – II

WELDS- STATIC AND FATIGUE STRENGTH -II. WELDS- STATIC AND FATIGUE STRENGTH II. 31. INTRODUCTION. In the previous chapter, a detailed account of various welding processes, types of welds, advantages of welded connections etc. were presented. It was seen that welded connections are continuous and more rigid when compared to bolted connections. It was also pointed out that fillet welds and butt welds constitute respectively 80% and 15% of all welds in the construction industry; the balance 5% is made up by plug, slot and spot resistance welds. In this chapter, the behaviour and design of welded connections under various STATIC loading conditions is considered. A typical connection design process is initiated with the design, which is followed by the welding operation and, concludes with inspection. CONNECTION DESIGN.

Partial penetration welds, shown in Fig. 3, differ in two ways from the full penetration welds: the reduction in cross section and the uncertainty of the weld root quality. Firstly, there is a reduction in the cross section at the joint resulting in overloading and severe

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