Seismic response of a base-isolated building with high damping, low shear modulus elastomeric bearings

Technical Report · Sun Aug 01 04:00:00 EDT 1993

DOI:https://doi.org/10.2172/10181979· OSTI ID:10181979

Wang, C Y; Chang, Y W; Kulak, R F; Seidensticker, R W ^[1]; Kuroda, T; Kobatake, M ^[2]

---

1. Argonne National Lab., IL (United States)
2. Shimizu Corp., Tokyo (JP). Nuclear Power Div.

This paper deals with an investigation of seismic responses of a base-isolated building subjected to actual earthquakes. The isolation system consists of six medium shape factor, high damping, low shear modulus bearings designed by ANL and manufactured in the United Kingdom. The objective is two-fold: (1) to study the effectiveness of the isolated bearings through responses of the test building under actual earthquakes, and (2) to validate the 3-D SISEC (Seismic Isolation System Evaluation Code) program. Results obtained from the earthquake observations indicate that the advantage of the base-isolation system in mitigating the acceleration of the superstructure is very pronounced. For earthquakes {number_sign}42 and {number_sign}44, the accelerations at the roof level of the isolated building are only 20% to 30% of the ordinary building accelerations. Also, for both ordinary and base-isolated buildings the computed accelerations agree reasonably well with those recorded.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: National Science Foundation, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 10181979
• Report Number(s): ANL/RE/CP--78807; CONF-930803--19; ON: DE93019022
• Country of Publication: United States
• Language: English

Related Subjects

054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200
220900
ACCELERATION
BEARINGS
COMPONENTS AND ACCESSORIES
COMPUTERIZED SIMULATION
DAMPING
EARTHQUAKES
EXPERIMENTAL DATA
HEALTH AND SAFETY
MATHEMATICAL MODELS
MITIGATION
NUCLEAR FACILITIES
PERFORMANCE TESTING
REACTOR SAFETY
REINFORCED CONCRETE
RESPONSE FUNCTIONS
S CODES
SEISMIC EFFECTS
SEISMIC ISOLATION
TEST FACILITIES
THREE-DIMENSIONAL CALCULATIONS
VALIDATION