STUDY OF GROUND MOTIONS FOR SIMULATION BY SHOCK TESTING MACHINE.
AGBABIAN-JACOBSEN ASSOCIATES LOS ANGELES CALIF
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This study was performed in order to obtain criteria for the design of a testing machine that will simulate ground shock. Approximate methods were used in defining the motions encountered during ground shock in representative soil profiles, and the effect of various structures interposed between the free-field and equipment was estimated. Shock spectra were then obtained for typical equipment located in various types of structures placed in the assumed soil conditions. In this manner, a range of values was obtained that defined approximately the shock input and the shock response of equipment, which, it is believed, bounds the shock conditions for specified environments given in the Work Statement. Author