Linear analysis is the most widely adopted analysis procedure in structural design practice. However, analysing the building considering linear behaviour might not be effective in capturing damages that may occur when a structure is subjected to seismic loading. Elevated water tank is considered as a single degree of freedom structure having relatively mass less columns and heavy mass concentrated at the top. Past earthquakes show that elevated water tanks are found to be critically vulnerable structures during earthquake. Elevated water tanks are those essential structures that should remain functional post earthquake event. Therefore, it becomes important to design these elevated water tanks with performance based design method like Direct Displacement Based Design (DDBD). In the present study, RC frame staging of elevated water tanks are modelled and analysed in commercial software. Various models of elevated water tanks are created by varying the capacity, staging height and Nonlinear static pushover analysis is used to determine the post yield behaviour, performance levels and weak links of elevated water tanks.
Volume 11 | 08-Special Issue
Pages: 3305-3313