Study of Hydrodynamic Effects on RC Elevated Water Tank under Seismic Excitations

  Naveen V M,  Sanya Maria Gomez

Recent earthquakes caused severe damages to several elevated water tanks. During earthquakes, supports of an elevated water tank are subjected to time varying acceleration which is transferred to the infilled water through the container. Moving water imparts hydrodynamic pressure on the tank walls and thus the effects are in turn carried over to the supporting structure and this alters the response of the staging which is already vibrating due to seismic shaking. Most of the studies where done by taking the fluid as two mass system and the hydrodynamic effect and design was considered according to the GSDMA guidelines. This implies that the behaviour of partially infilled elevated water tanks can be properly captured only by proper modelling of the structure as well as the moving fluid. The objective of the present work is to evaluate the applicability of the general purpose with analysis program ANSYS 14.5 in the modeling and seismic analysis of elevated water tanks.

Keywords- GSDMA guidelines, seismic analysis, hydrodynamic pressure

Unique Identification Number - IJEDR1503129
Page Number(s) - 1-4
Pubished in - Volume 3 | Issue 3 | Sept 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Naveen V M,  Sanya Maria Gomez,   "Study of Hydrodynamic Effects on RC Elevated Water Tank under Seismic Excitations", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 3, pp.1-4, Sept 2015, Available at :http://www.ijedr.org/papers/IJEDR1503129.pdf