DOI: 10.5176/2301-394X_ACE13.114
Authors: Dr. GOPI SIDDAPPA
Abstract:
Elevated water tanks are one of the most important lifeline structures in earthquake prone regions. In major cities and also in rural areas elevated water tanks forms an integral part of water supply scheme. These structures has large mass concentrated at the top of slender supporting structure, hence these structures are especially vulnerable to horizontal forces due to earthquake. Elevated water tanks that are inadequately analyzed and designed have suffered extensive damage during past earthquakes. Hence it is important to check the severity of these forces for particular region. The tanks are used to store water placed either on the ground or at an elevation. The need for a water tank is as old as civilized man, providing storage of water irrigation, agriculture, fire suppression, agricultural farming, both for plants and livestock, chemical manufacturing, food preparation as well as many other applications. All water tanks are designed as crack free structures to eliminate any leakage. The Analysis and Design of reinforced concrete structures to sustain static and dynamic loading is an important task facing structural engineers. The existing codes are based on elastic analysis which has no measure of the deformation capability of members or of structure. Thus the Non-Linear static pushover analysis is becoming a popular tool for seismic performance evaluation of existing and new structures. The expectation is that the pushover analysis will provide adequate information on seismic demands imposed by the design ground motion on the structural system and its components. The purpose of this project is to summarize the basic concepts on which the pushover analysis can be based, assess the accuracy of pushover predictions, identify conditions under which the pushover will provide adequate information and perhaps more importantly to identify cases in which the pushover predictions will be inadequate or even misleading. The aim of this project is to provide relevant information and implementation of Non- linear Static [pushover] analysis for elevated water tanks.
Keywords: water tank, pushover analysis, earthquake, leakage, capacity curv.e
Updating...