Use of Strong-Motion Data in Earthquake Resistant Design

by Paul Jennings

Jennings, Paul (1997). Use of Strong-Motion Data in Earthquake Resistant Design. SMIP97 Seminar on Utilization of Strong-Motion Data, p. 1 - 8.

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The study first reviews some simple methods of calculating maximum displacement, base shear and interstory drift from acceleration response records. A record from a 17-story building in Los Angeles obtained during the Northridge earthquake is used for illustration. More detailed analyses of similar records are suggested as attractive subjects for Master's theses and senior projects. Simple analyses of records from Northridge and other earthquakes convincingly indicate base shears and drifts that are substantially in excess of those used in design. The author urges that earthquake resistant design be based increasingly on measurements of earthquake response and measured properties of materials, and less on empiricism and qualitative assessments of earthquake performance.