An inhomogeneous inelastic beam-like model for dynamic analyses of multistorey buildings

Abstract. This study presents an original inelastic beam-like model for the simulation of nonlinear dynamic behaviour three-dimensional buildings subjected to earthquake loadings. The proposed is defined as a step-wise shear only cantilever beam, whose segments have same mechanical properties corresponding inter-storeys building. inter-storey constitutive laws are calibrated by means results static analysis performed on 3D FEM An inverse identification procedure allows obtaining equivalent more demanding model, related specific direction and under precise distribution horizontal Dynamic analyses this simplified allow drastic reduction required computational effort time with respect model. reliability validated through numerical applications irregular multi-storey RC frame representative residential in Catania designed resist gravity