Passive earthquake-resistance through base isolation
Base isolation is an effective approach in mitigating the seismic forces transmitted to the superstructure. It is able to provide reliable protection for the superstructure, its contents and occupants. With base isolation, dynamic characteristics of the superstructure and its contents become more predictable and controllable. In recent years, different base isolation systems have been installed in various new and existing buildings, including office buildings, computer centers, buildings for high technology industries, emergency and communication centers, buildings for high technology industries, emergency and communication centers. The concept of seismic isolation is also under active investigation for nuclear power plants, where safety and reliability of these systems are of utmost importance. One such system uses laminated high-damping rubber and steel shim plates vulcanized into a solid bearing. Under a joint program between Shimizu of Japan and Argonne National Laboratory of the United States, such high-damping rubber bearings were installed in the spring of 1989 in a three-story full size test building at the Tohoku University, Sendai, Japan. Within a period of six months after their installation, this test building and the bearings have experienced more than fifteen earthquakes. Valuable information on the performance of the isolation bearings and the building has been (and is continuing to be) gathered and analyzed. Simulation studies of the effects of these earthquakes using lumped mass systems have been conducted, and are in close agreement with the actual observed responses. 3 refs., 11 figs.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- National Science Foundation (NSF)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6851308
- Report Number(s):
- CONF-9007119-1; ON: DE90013671
- Resource Relation:
- Conference: International workshop on intelligent structures, Taiwan (China), 23-26 Jul 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
BEARINGS
DAMPING
BUILDINGS
SEISMIC EFFECTS
NUCLEAR POWER PLANTS
COMPUTERIZED SIMULATION
EARTHQUAKES
EXPERIMENTAL DATA
GROUND MOTION
PERFORMANCE TESTING
RUBBERS
SOIL-STRUCTURE INTERACTIONS
DATA
ELASTOMERS
INFORMATION
MOTION
NUCLEAR FACILITIES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POWER PLANTS
SEISMIC EVENTS
SIMULATION
TESTING
THERMAL POWER PLANTS
220900* - Nuclear Reactor Technology- Reactor Safety
420200 - Engineering- Facilities
Equipment
& Techniques