Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others

Sine-beat phenomena have been found in the 1994 Northridge earthquake records, and they are capable of producing time-history responses and damaging quasi-resonance effects in structures. Linear, single DOF (degree of freedom) oscillators, in lieu of nonlinear, multiple DOF systems, have been found...

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Main Authors: Edward G. Fischer, Thomas P. Fischer
Format: Article
Language:English
Published: Wiley 1998-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/1998/418528
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author Edward G. Fischer
Thomas P. Fischer
author_facet Edward G. Fischer
Thomas P. Fischer
author_sort Edward G. Fischer
collection DOAJ
description Sine-beat phenomena have been found in the 1994 Northridge earthquake records, and they are capable of producing time-history responses and damaging quasi-resonance effects in structures. Linear, single DOF (degree of freedom) oscillators, in lieu of nonlinear, multiple DOF systems, have been found adequate to discuss the failures of tall circuit breakers during the 1971 San Fernando and the 1989 Loma Prieta quakes in California. The use of sine-beat excitation for seismic-shaking-table tests of equipment continues to be a conservative simulation of earthquakes.
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spelling doaj-art-e3c2a1f3824249bf84aef5bb5fe817a52025-08-20T02:21:24ZengWileyShock and Vibration1070-96221875-92031998-01-015315315810.1155/1998/418528Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and OthersEdward G. Fischer0Thomas P. Fischer1Fischer Consulting, 5525 Third Street, Verona, PA 15147, USAAstro Nuclear/Dynamics, Inc., 811 Route 51 South, Large, PA 15025, USASine-beat phenomena have been found in the 1994 Northridge earthquake records, and they are capable of producing time-history responses and damaging quasi-resonance effects in structures. Linear, single DOF (degree of freedom) oscillators, in lieu of nonlinear, multiple DOF systems, have been found adequate to discuss the failures of tall circuit breakers during the 1971 San Fernando and the 1989 Loma Prieta quakes in California. The use of sine-beat excitation for seismic-shaking-table tests of equipment continues to be a conservative simulation of earthquakes.http://dx.doi.org/10.1155/1998/418528
spellingShingle Edward G. Fischer
Thomas P. Fischer
Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
Shock and Vibration
title Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
title_full Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
title_fullStr Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
title_full_unstemmed Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
title_short Quasi-Resonance Effects Observed in The 1994 Northridge Earthquake, and Others
title_sort quasi resonance effects observed in the 1994 northridge earthquake and others
url http://dx.doi.org/10.1155/1998/418528
work_keys_str_mv AT edwardgfischer quasiresonanceeffectsobservedinthe1994northridgeearthquakeandothers
AT thomaspfischer quasiresonanceeffectsobservedinthe1994northridgeearthquakeandothers