Spectrum-Compatible Motions for Design Purposes

by Nien-Chien Tsai, Sr. Engr.; Bechtel Corp., Power & Industrial Div., San Francisco, CA,

Serial Information: Journal of the Engineering Mechanics Division, 1972, Vol. 98, Issue 2, Pg. 345-356

Document Type: Journal Paper


A practical method is presented to obtain synthetic motions that closely match a reasonable specified deisgn spectrum for a seismic design of important earthquake-resistant structures and equipment. The principle of this method is to modify existing motions. For this purpose, a spectrum-suppressing technique and a spectrum-raising technique are developed. Examples are then given to illustrate their applicability to actual structure design.

Subject Headings: Motion (dynamics) | Seismic design | Earthquake resistant structures | Ground motion | Seismic tests | Equipment and machinery

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