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Energy based pushover analysis of a building: considering the effects of higher modes
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| The development in the computer application has helped the structural engineering field significantly, as the time and effort required decreased drastically with the development of software. The Non-Linear Time History Analysis (NL-THA) of seismic evaluation of a structure is precise, but tedious and requires a lot of data. Work is being done to develop Non-Linear Static Procedures (NSP) which can yield results close enough to those obtained from NL-THA procedure.The present study is based on Energy based pushover analysis (EBPOA), considering the effects of higher modes on the response of the structure.For the purpose of the study, a 3-bay 5-storey Reinforced Cement Concrete (RCC) framed building was modeled and analyzed using the EBPOA and Modal Pushover Analysis (MPA) procedures. The results were compared regarding the effects of higher modes of the building.In the study the Overturning moment (OTM), Storey drifts and base shear of the structure were studied and the results obtained were compared with those obtained from the MPA. |
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