Seismic response analyses of base isolated structures with high damping elastomeric bearings

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

OSTI ID:5681312

Wang, C Y; Tang, Y; Chang, Y W; Seidensticker, R W ^[1]; Marchertas, A H ^[2]

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1. Argonne National Lab., IL (USA)
2. Northern Illinois Univ., De Kalb, IL (USA)

Seismic response analysis of base-isolated structures with high damping elastomeric bearings is described. Emphasis is placed on the adaptation of a nonlinear constitutive model for the isolation bearing together with the treatment of foundation embedment for the soil-structure-interaction analysis. The constitutive model requires six input parameters derived from bearing experimental data under sinusoidal loading. The characteristic behavior of bearing, such as the variation of shear modulus and material damping with the change of maximum shear deformation, can be captured closely by the formulation. In the treatment of soil embedment a spring method is utilized to evaluate the foundation input motion as well as soil stiffness and damping. The above features have been incorporated into a three-dimensional system response program, SISEC, developed at Argonne National Laboratory. Sample problems are presented to illustrate the relative response of isolated and unisolated structures. 11 refs., 12 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5681312
• Report Number(s): ANL/CP-72573; CONF-910602-38; ON: DE91011843
• Resource Relation: Conference: American Society of Mechanical Engineers (ASME) pressure vessels and piping conference, San Diego, CA (USA), 23-27 Jun 1991
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
58 GEOSCIENCES
42 ENGINEERING
MECHANICAL STRUCTURES
SEISMIC ISOLATION
SOIL-STRUCTURE INTERACTIONS
MATHEMATICAL MODELS
S CODES
BEARINGS
DAMPING
EARTHQUAKES
ELASTOMERS
GROUND MOTION
NONLINEAR PROBLEMS
PLASTICITY
REACTOR SAFETY
SEISMIC EFFECTS
SHEAR
THREE-DIMENSIONAL CALCULATIONS
COMPUTER CODES
MECHANICAL PROPERTIES
MOTION
POLYMERS
SAFETY
SEISMIC EVENTS
220900* - Nuclear Reactor Technology- Reactor Safety
990200 - Mathematics & Computers
580000 - Geosciences
420200 - Engineering- Facilities
Equipment
& Techniques