The Behaviour of Hinges in Buildings Over Various Monitored Displacement - Pushover Analysis
Keywords:Linear analysis, Nonlinear Pushover analysis, Hinges.
Before, most of the existing multi-storey building was designed only for gravity load. Later only linear analysis considering the design was adopted. But linear analysis results with reduced displacement and greater base force were obtained only up to the yield point. We must adopt nonlinear analysis, such as pushover analysis, to predict results beyond the yield point. In the case of pushover analysis, results beyond the yield point are also obtained. The nonlinear analysis gives a clear picture of different failure stages of the building before yield and also at collapse. The results of base force corresponding to displacement with hinges formed at various failure states such as A-B, B-IO, IO-LS, and LS-CP state is obtained. It also gives results of Demand. In the present problem, a 10 storey 5x5 bay structure is nominated. The building is subjected to pushover analysis and pushed for various monitored displacements starting from 0.1m to 4.0m. The formation of hinges at various failure states notes the variations occurring in the performance of the building. Observing the outcome gives an idea to adopt retrofitting technique or not.
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