Analysis and A.I. Modelling of Parameters of Symmetrical Multistory Building using Non-linear Static Analysis

Kulvinder Singh; Ramanuj Jaldhari

Abstract

Non-linear static analysis (Push over Analysis) is the emerging field in seismic design of structures.The major drawback of elastic analysis is that the response beyond the linear state is neither linearnor simple extrapolation. Although elastic analysis gives a good indication of the elastic capacity ofstructures, but it cannot account for redistribution of forces during progressive yielding of a structurethat follows and to predict its failure mechanism or detect possible location of any premature failure.The inelastic behavior of the structure could be predicted more accurately by non- linear staticanalysis. It can help in identifying critical members likely to reach critical states in the event of anearthquake for which attention should be given during designing and detailing. Performance-baseddesign is determined by Non-linear static analysis under constant gravity loads and monotonicallyincreasing lateral forces during an earthquake until a target displacement is reached. Graph betweenroof displacements vs. base shear is plotted after this analysis and a capacity curve is attained.Performance-Based Design requires rigorous nonlinear analysis. Research is in progress and it isslowly emerging in arena for designers to design new buildings or to retrofit existing buildings tomeet performance objectives. RCC walls provide lateral support to the building in case of seismicevent. In the present study push over analysis is carried out on 10 and 15 story buildings withdifferent configuration of RCC walls. Also the best configuration is selected (B9) on the basis ofUltimate Base shear, push over analysis curve, roof displacement, etc.