THE NON-LINEAR RESPONSE OF REINFORCED CONCRETE FRAME STRUCTURES TO SEISMIC LOAD

Abstract eng:
The response of reinforced concrete structures to dynamic loads is featured the non-linear properties in general. If we take these facts into account for solution of the equation of motion and also take into account of cyclic load to the resultant response, we will get a more real estimate of behavior of structures as compared to the linear calculation. In the contribution a fiber model based on realistic material models is proposed for reinforced concrete sections and for a non-linear dynamics analysis. Numerical examples are presented in the terms of moment-curvature relationships and load-displacement diagram of the structure. Accounted of a new method which is the basis of nonlinear pushover method and which provides the simplification of an access by the way of response spectrum design reinforced concrete frames closes this contribution.

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