The Earthquake Engineering Online Archive - (Nisee e-library)

SHAKE: a computer program for earthquake response analysis of horizontally layered sites

Schnabel, Per B.; Lysmer, John; Seed, H. Bolton

UCB/EERC-72/12, Earthquake Engineering Research Center, University of California, Berkeley, 1972-12, 92 pages (480/S36/1972)

The program computes the response in a horizontally layered soil rock system subjected to transient, vertical travelling shear waves. The method is based on Kanai's solution to the wave equation and the Fast Fourier Transform algorithm. The motion used as basis for the analysis can be applied to any layer in the system. Systems with elastic base and with variable damping in each layer can be analyzed. Equivalent linear soil properties are used with an iterative procedure to obtain soil properties compatible with the strains developed in each layer. A varied set of operations of interest in earthquake response analysis can be performed.

Available online: http://nisee.berkeley.edu/documents/EERC/EERC-72-12.pdf (2 MB)