Displacement Performance of 8 Storeys Hotel Building Using Nonlinear Time History Analysis Method

Acknowledging the responses of a structure under a particular type of loading is the utmost importance aspect of structure’s designing and analysing. Seismic load are one of the most important type of loading, therefore dynamic analysis should be performed in order to evaluate the performance of a structure which is subjected to earthquake load. Among all the dynamic analysis methods, non-linear time history seismic analysis method is more accurate, because it generates a real earthquake load on a structure and analyzes the response of the structure. In this study, the structural behavior of reinforced concrete building is observed subjected to an earthquake motion by nonlinear time history analysis method. Different parametric studies have been performed to investigate its responses during an earthquake. An eight storeys hotel building is analyzed using finite element analysis software. Two earthquakes ground motion, namely El Centro (1940) and Kobe earthquake are applied at the base of the structure and the seismic capacities at structural and element levels are evaluated according to the guideline of ATC-40. Formation of plastic hinges is used as the basis of local performance evaluation and storey drift is used as the basis for evaluating global performance. It has been observed that for Kobe and El Centro earthquake ground motions, the structure meets the performance objective in serviceability of ATC-40 as Immediate Occupancy (IO) and Damage Control (DC).