SEISMIC RESPONSE OF RC BUILDINGS WITH DIFFERENTLY REINFORCED SHEAR WALLS

Abstract

A post-elastic behaviour of buildings with reinforced concrete (RC) walls is analysed, using the method of nonlinear static analysis. Two models, both with different RC wall reinforcement detailing, are used for the comparative analysis of the building behaviour. Walls are modelled as column-rigid beam elements with fiber nonlinear hinges, but with different distribution and quantities of the reinforcing steel in both model. The model with RC walls that have boundary elements is chosen as a referent model for comparative analysis. Based on the results of nonlinear analysis method, target displacement and inter- story drift values, some conclusions and recommendations are given.

Analiziran je sistem post-elastičnog ponašanja zgrada sa armirano-betonskim (AB) zidovima, primenom metode nelinearne statičke analize. Za uporednu analizu ponašanja zgrade koriste se dva modela, oba sa različitim detaljima armiranja AB zidova. Zidovi su modelirani kao sistemi stubova i krutih greda sa vlaknastim modelima plastičnih zglobova, ali sa različitim rasporedom i količinama armature u oba modela. Kao referentni model za komparativnu analizu, odabran je model sa AB zidovima koji imaju ivične elemente. Na osnovu rezultata dobijenih primenom metode nelinearne analize, ciljnih i međuspratnih pomeranja, date su odgovarajuće preporuke.