Curvograms of Strong Earthquake Ground Motion
Publication: Journal of Engineering Mechanics
Volume 116, Issue 6
Abstract
A method for the synthetic generation of curvograms (curvature versus time) associated with strong earthquake shaking is presented. It is shown that small radii of curvative of ground motion, in the range of several hundred meters, are possible only for very large accelerations (1–3 ge/u), near epicenter, and in soft geologic and soil environment, with shear wave velocities in the range near 50–100 m/s. Therefore, the pseudostatic bending of long foundation structures by ground waves may be expected only for large accelerations and for short wavelengths, in the vicinity of shallow or surface faults. Similar conditions are possible in isolated areas, where the three-dimensional geometry of surface layers leads to focusing, and thus large amplification of incident wave amplitudes.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 116 • Issue 6 • June 1990
Pages: 1426 - 1432
Copyright
Copyright © 1990 ASCE.
History
Published online: Jun 1, 1990
Published in print: Jun 1990
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