THESIS ON ANALYSIS AND DESIGN OF OVERHEAD TANK FROM WIND LOAD

Reinforced concrete tanks are used liquid containing vessels. Such tanks can be ground supported tanks ground storage reservoir and high ground level storage reservoir or elevated water tanks may be referred as elevated storage reservoir. Although most design codes provide guidelines for rectangular and cylindrical tanks, no guidance is provided in EBCS codes for Elevated water tanks. For the analysis and designing the Intze tank along with the EBCS code, ACI code and IS code is used. Therefore, this thesis is study the behavior and design of this type of tanks. In areas with high probability of natural disasters, ability of lifeline systems to resist disaster related damages is one of the most important civil engineering challenges. Elevated water tanks are one of the most important lifeline structures. In this thesis an extensive computational study has been conducted to find out the performance of elevated Intze water tank under wind force. Since these structures have large mass concentrated at the top of slender supporting structure, these structures are especially vulnerable to horizontal forces due to wind. Elevated water tanks are analyzed with different parameters to study the effect of capacity, height of staging, terrain category and wind zone. Findings of the present study shall lead us to better understanding of the behavior of elevated water tank under wind load and safer design of such structure. In doing the design the working stress methods and limit state design is used based on the requirement. In this study membrane analysis is used to find the meridional thrust and hoop stress calculation at various components of the Intze tank. KEYWORDS: Life line systems, Intze tank, Meridional thrust, Hoop stress, EBCS, ACI, IS codes, Wind loa