Published Paper Details:

The architectural designs of today's structures often feature numerous flaws that cannot be avoided. The structure is more susceptible to natural disasters like earthquakes because of these flaws. The behavior of irregular buildings during seismic events is examined in the current study. Nonlinear static analysis is used to evaluate the effectiveness and susceptibility of the irregular building models taken into consideration. Building reaction to earthquakes is a challenging, dynamic, nonlinear, three-dimensional challenge. It is generally acknowledged that the most accurate method for modelling the reaction of structures exposed to high levels of seismic excitation is nonlinear time-history analysis. This analytical approach may replicate the inherent inelastic dynamic behavior of structures and is founded on strong fundamental ideas. As a result, the combination of analysis accuracy and simple modelling allows for the reduction of the sense of complexity associated with nonlinear dynamic analysis. Modelling presumptions are explored together with their effects on the nonlinear time-history analyses' numerical outcomes, which were found to be in strong accord with the findings of the experiments. According to the study, it is advised that Time History method analysis of multi-story RCC buildings become important to assure safety against earthquake force. In the case of irregular buildings, the angle of seismic force incidence is significant. Even though the building structure is safe when assessed and developed in accordance with design code requirements, the incidence of seismic action makes it more vulnerable. For this reason, it is crucial to examine the behavior of the considered models while taking the incidence angle of earthquake forces into consideration using parametric test. By taking into account various earthquakes, nonlinear dynamic analysis has been done in various directions to establish the critical angle of incidence, which is comparable to the response spectrum of the Indian standard code. In the current research, nonlinear dynamic analysis of high-rise RCC buildings is explored, taking into account various seismic intensities, as well as the seismic reactions of such buildings. ETABS software is used to model the building under examination while taking into account various seismic intensities. With the help of time history analysis, dynamic structural response to loads can be evaluated linearly or nonlinearly and may vary depending on the chosen time function.