Pushover analysis of shaking table tests on a RC shear wall

Displacement Based Design (DBD) is becoming a widely used tool for the design and analysis of new and existing structures subject to seismic forces. Inherent with the DBD approach, however, are several limitations, linked e.g. to the simplified representation of the dynamic phenomena it relies on, and to its disregarding damage accumulation. These aspects are investigated in this work, which evaluates the performance of a non linear procedure of seismic analysis for the Displacement Based Design (FEMA 273 and 356) when adopted to simulate a series of shaking table tests on a 5-story reinforced concrete (RC) wall specimen characterized by limited reinforcement. The specimen, which was tested under a sequence of five seismic events (RUN1-5) during the CAMUS I Program, can be considered as representative of existing structures belonging to a broad structural family, namely that of the Large Lightly Reinforced Walls designed according to the French National Code preceding Eurocode 8. The efficiency of the nonlinear static analysis approximating the effects of the seismic loading depends also on the choice of models. Two models at different scales are used herein and compared. The results shows that the static nonlinear analysis procedure, when associated to a proper modeling strategy, is capable to successfully simulate a complex series of experimental tests on shaking table