Responses of an isolation system with distinct multiple frequencies

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5635114

Wu, Ting-shu; Seidensticker, R W

Base isolation systems are generally designed with a single natural frequency. A major concern for these isolation systems is that, if the dominant frequency of a future earthquake is equal or close to the system's natural frequency, the ground motion will be greatly amplified because of resonance,and the superstructure would suffer severe damages. This paper present an isolation system designed with two distinct frequencies. Its responses to different ground motions, including a harmonic motion, show that no excessive amplification will occur. Adoption of this isolation system would greatly enhance the safety of an isolated superstructure against future strong earthquakes. 3 refs., 4 figs., 2 tabs.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5635114
• Report Number(s): ANL/CP-72537; CONF-910817-17; ON: DE91015682
• Resource Relation: Conference: 11. international conference on structural mechanics in reactor technology, Tokyo (Japan), 18-23 Aug 1991
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
58 GEOSCIENCES
REACTOR COMPONENTS
SEISMIC ISOLATION
GROUND MOTION
HARMONICS
MECHANICAL VIBRATIONS
NUCLEAR POWER PLANTS
REACTOR SAFETY
REACTORS
SEISMIC EFFECTS
SHOCK ABSORBERS
MOTION
NUCLEAR FACILITIES
OSCILLATIONS
POWER PLANTS
SAFETY
THERMAL POWER PLANTS
220900* - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories
580000 - Geosciences