Initial deformations of bolted joints in metal structures

The congruence between conventional calculation schemes and theoretical behaviour of metal structures considering manufacturing tolerances is examined. Tolerances are accepted by building codes for fabrication and erection. Conditions are found under which the calculation schemes probably do not reflect the real work of structures. In addition, the effect of mounting technology on carrying capacity (against sliping and bolt shearing) of temporary connections is considered, as well as connections at the operational stage. Conclusions are drawn that initial deformations of bearing-bolted connections of metal structures should be taken into account when comparing the variants of mounting technology, as well as load-bearing capacity reduction in friction-grip connections.