Micro-modeling of RC frames with masonry infill

摘要

Presented is the developed analytical micro-model for refined simulation of the non-linear behavior of RC infilled frames under strong earthquakes. The concept is based on discretization of the structural system by a finite number of nonlinear discrete components connected at the nodal points of the model and knowledge of the stress-strain relationship for each material in the structure (micro-modeling concept). The discrete components are different for the individual structural elements of the system, their main characteristic being nonlinearity. The application of the proposed concept applying the nonlinear discrete components and using the originally developed complex computer program EURO NORA is performed by modeling and seismic analysis of a plane RC frame model with masonry infill. The verification of the proposed analytical models is presented using the obtained results from shaking table tests on a two storey-two bay model of the plane frame. The results obtained from the extensive theoretical studies confirmed the applicability of the proposed micro-models.