BibTeX:

@article{IJIRSTV3I5062,
     title={Seismic Analysis and Earthquake Characteristics of RCC Elevated Liquid Storage Tank with Different Bracings and Staging Patterns},
     author={K Divya Madhavi, Mrs J. Keerthana, Mr. M. K. M. V. Ratnam and Dr. U. Ranga Raju},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={5},
     pages={147--150},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I5062.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

As we know from past records, many of reinforced concrete elevated water tanks were heavily damages or collapsed during the earthquakes all over the world. General observations are pointing out the reasons towards the failure of supporting system which reveals that the supporting system of the elevated tanks has more critical importance than the other structural parts of tanks. Most of the damages observed during the seismic events arise was might be due to the lack of knowledge regarding the proper behaviour of supporting system of the tank against dynamic effect and also due to improper geometrical selection of staging patterns. The main objective of this study is to understand the behaviour of supporting system which is more effective under different earthquake characteristics or earthquake zones with STAAD. Pro V8i software. A sample of a reinforced concrete elevated water tank (Intz type), with 900 cubic meters and with a height of 18m from ground level is considered. Here two different staging patterns such as radial bracing and cross bracing are compared with basic supporting system for various fluid filling conditions. The seismic zones of Zone-III & Zone-V and the corresponding earthquake characteristics have been taken from IS 1893 (PART 1)-2002 & draft code IS 1893 (Part 2). Consequently the water mass has been considered in two parts as impulsive and convective suggested by GSDMA guidelines. Tank responses including base shear, overturning moment and roof displacement have been observed, and then the results have been compared and contrasted. The result shows that the structure responses are exceedingly influenced by the presence of water and the earthquake characteristics. Finally study discloses the importance of suitable staging configuration to remain withstands against heavy damage or failure of elevated water tank during seismic events.

Earthquake Characteristics, RCC Elevated Liquid Storage Tank