ABSTRACT
Riveting of structural steelwork is now unusual and so is not considered. But the attributes of the rivet, a connection device which at reasonable cost produced a joint which was not prone to slip when subjected to pulsating load, are now available in the high strength friction grip bolt. For connections where slip and vibration are undesirable it is necessary to use accurately machined bolts fitted into precisely drilled holes. Welded connections are designed on a realistic assumption of the distribution of internal forces having regard to the relative stiffnesses of the connected parts. The basic net section is taken as that right section giving the smallest net area. The number of bolts required is rapidly estimated by consideration of the smaller of the shearing or bearing strength of a given bolt size. Tests have shown that for side fillets the ultimate nominal shearing strength is not less than two-thirds the minimum tensile strength of the base metal.
