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EARTHQUAKE WITHSTANDING TESTING AND CHECK ANALYSIS OF EQUIPMENT
Dr. K.G. BHATIA
Paper No.: 256
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Vol.: 24
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No.: 2
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June, 1987
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pp. 87-92

Abstract
Growth of Industries and Power Plants(Nuclear, Thermal and Hydro) is on increase day by day world over. Most of these are located in seismic Zones of considerable damage potential. In certain specific areas like nuclear power plants, petroleum facilitles etc., consequences of fallures are so serious that safety becomes an overriding consideratlon. Seismic qualification of equipment and structure for such vital facllities, in particular, has become mandatory demanding uninterrupted normal behavlour of equipment under postulated earthquake enviroment. For past few decades, research In Earthquake Engineering was centered around Civil engineering structures only with a little or no emphas18 on equlpment/machinery, Only very recently, attempts have been made to extend the domain covering equipment too.. Aithough, the basic underlying principle. that the system (may be structure or equipment) should structurally remaln integral or can sustain a pre-assessd damage during the postulated earthquake, is same both for structure and equipment, yet the criteria for seismic quali- qualification of equipment seems to be far different than those for structures, Further, whereas the analytical procedures used for seismic qualification Of civil structures can be said to have been established and validated, such validation are practically misging so far as equipment are concerned. Equipment qualification can primarily be achieved by Lab Testing, Field Testing and Analysis. The present paper deals with seismic qualification requirements, method of qualification, eg. Testing/Analytical, their merits/deme- rits, limitations etc. and identifies the grey areas which need Immediate attention.
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