Analog Simulations of Earthquake Motions

by Howard S. Ward,

Serial Information: Journal of the Engineering Mechanics Division, 1965, Vol. 91, Issue 5, Pg. 173-190

Document Type: Journal Paper


Two analog methods of simulating earthquake motions are presented. One method uses sections of a gaussian random function with a given power spectrum. The second method uses a hybrid computer that permits any given type of ground motion to be simulated. Linear single-degree-of-freedom systems were excited by the simulated earthquakes and their responses were measured. Base shear was used as a measure of the response and empirical formulas were developed for base shear as a function of the mass and period of the system and the magnitude of the ground acceleration.

Subject Headings: Ground motion | Earthquakes | Analogs | Hybrid methods | Linear functions | Permits | Gaussian process | Computer models

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