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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4883

Title: SIMPLIFIED EARTHQUAKE ANALYSIS OF INTAKE-OUTLET TOWERS
Authors: CHOPRA, AK
GOYAL, A
Issue Date: 1991
Publisher: ASCE-AMER SOC CIVIL ENG
Citation: JOURNAL OF STRUCTURAL ENGINEERING-ASCE, 117(3), 767-788
Abstract: A simplified procedure is presented to determine the maximum earthquake forces in intake-outlet towers directly from the design earthquake spectrum without the need for a response-history analysis. All the significant effects of tower-water interaction and tower-foundation-soil interaction are included in the analysis. The hydrodynamic effects of outside and inside water are approximately by added mass functions, which can be determined to a useful degree of accuracy without requiring regorous three-dimensional analysis of the two fluid domains. The simplified response spectrum analysis (SRSA) procedure utilizes convenient methods for computing: (1) The first two natural frequencies and modes of vibration of the tower; and (2) the modifications to the vibration period and the damping ratio of the fundamental vibration mode due to tower-foundation-soil interaction. The procedure is demonstrated to be accurate enough for preliminary design and safety evaluation of towers.
URI: http://dx.doi.org/10.1061/(ASCE)0733-9445(1991)117:3(767)
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4883
http://hdl.handle.net/10054/4883
ISSN: 0733-9445
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