Published Paper Details:

Liquid storage tanks are one of the many important structures that demand grater safety against natural disaster like earthquakes. Water tanks and particularly the elevated storage reservoir is considered as main lifeline elements which be able to maintain the expected performance i.e., Operational during and after earthquakes. Specific concentration must be paid while designing the water tank to avoid the potential damage associated with the failure of tanks and to supply water. In this paper seismic response of a Steel elevated service reservoir of 743 m3 capacity had been evaluated. Steel water tank was designed as per the Indian code IS: 805-1968 (Reaffirmed 2006). Particular attention had been paid to the consideration of internal fluid sloshing phenomena, Total water mass was divided into two masses convective and impulsive mass. The Non-linear time history analysis on the tank model with or without the base isolation under the seismic event named as Bhuj had been performed in ETABS software. Also, two types of staging and bracing combination were considered which were Seismically strong as per the literature i.e., X and Inverted V braced frame. Elevated steel water tank was isolated with Laminated lead rubber bearing and two different isolating position were considered 1) Between Superstructure and Substructure 2) Between Staging and tank. After analysis results were obtained in the form of Base shear and Tank deformation.