Comparative Study on Behaviour of Intze type Water Tank with Different Lateral Load Resisting Structural Systems

Abstract

It is observed that the Intze type water tanks were collapsed or damaged during earthquake and this might have occurred due to various reasons like lack of understanding the behavior of the supporting structure (staging) of the Intze type water tank due to seismic loading or selection of improper geometric shape of the staging structure. There are different types of staging patterns that can be used for the Intze type water tank according to the requirement. Framed staging pattern is widely used for the Intze type water tank. It has variety of configurations that can be used. In this study, an attempt has been made to study the behavior of the reinforced concrete Intze type water tank with different staging patterns under the lateral loading. Various types of bracing configurations are used as the supporting frame staging of the Intze type water tank. In this paper, the study is carried out on the reinforced cement concrete Intze type water tank supported on frame type staging. The capacity of the Intze type water tank is taken as 18 Lac litres with staging height of 23 m. Grade of concrete and steel used are M-25 and Fe 415. Medium soil and seismic zone as III are considered in the analysis. Each model is analyzed for tank empty condition, tank partially filled condition and tank full condition.