- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
The present paper aims to contribute to the parametric analysis of semirigid steel base plate connections. The method is based on the theoretical results of nonsmooth mechanics, which is a relatively new branch of mechanics initiated three decades ago and deals with problems from mechanics and/or structural analysis that involve generalizations of the gradient. The numerical modelling of the structural response of a steel column base plate under static loading where unilateral contact with friction and yielding phenomena are taken into account, could be considered as a typical problem that can be very eectively treated within such a theoretical framework. In particular, the respective stress states of the steel connection under static loading are calculated by taking into account the development of plasti®cation zones and the unilateral contact and friction eects on the interfaces between connection members. An eective two-dimensional ®nite element model, capable of describing the previously mentioned phenomena is constructed. The aforementioned model is a simpli®cation of the respective three-dimensional one and aims to reduce in a reliable way the huge computational eort required for the analysis of three-dimensional ®ne meshes of discretized steel connections. A numerical application demonstrates the eectiveness and the applicability of the method altering two parameters, the base plate thickness and the axial load of the model.