PERFORMANCE BASED EVALUATION OF RESPONSE REDUCTION FACTOR FOR ELEVATED INTZE WATER TANK

Abstract: The aim of this study is to assess the response reduction factor (R) for raised Intze water tanks that have been seismically loaded based on their performance. When earthquakes strike, the collapse of essential lifeline buildings like elevated water tanks may have a devastating impact on communities and economies. This research utilises CSI SAP2000 software to model Intze tanks with capacity of 300 m3 and 600 m3, respectively, with staging heights of 14 m and 18 m. Various seismic zones (II-V) and medium soil types are taken into account in the nonlinear static pushover analysis, which takes into account both empty and full tank situations. Base shear, lateral displacement, and fundamental time period are some of the important performance metrics that are examined in the research. In addition, in order to evaluate the response reduction factor (R), structural performance parameters including overstrength, ductility, and redundancy are assessed. Insights for safer and more affordable seismic design of raised Intze water tanks are provided by the results, which emphasise the impact of staging height, tank capacity, and seismic zone on the structural reaction.

Keywords: Water tank, Pushover analysis, Earthquake, Staging.