Nonlinear soil-structure interaction analysis of SIMQUAKE II. Final report
This report describes an analytic method for modeling of soil-structure interaction (SSI) for nuclear power plants in earthquakes and discusses its application to SSI analyses of SIMQUAKE II. The method is general and can be used to simulate a three-dimensional structural geometry, nonlinear site characteristics and arbitrary input ground shaking. The analytic approach uses the soil island concept to reduce SSI models to manageable size and cost. Nonlinear constitutive behavior of the soil is represented by the nonlinear, kinematic cap model. In addition, a debonding-rebonding soil-structure interface model is utilized to represent nonlinear effects which singificantly alter structural response in the SIMQUAKE tests. STEALTH, an explicit finite difference code, is used to perform the dynamic, soil-structure interaction analyses. Several two-dimensional posttest SSI analyses of model containment structures in SIMQUAKE II are performed and results compared with measured data. These analyses qualify the analytic method. They also show the importance of including debonding-rebonding at the soil-structure interface. Sensitivity of structural response to compaction characteristics of backfill material is indicated.
- Research Organization:
- Weidlinger Associates, Menlo Park, CA (USA)
- OSTI ID:
- 5292730
- Report Number(s):
- EPRI-NP-2353; ON: DE82904041; TRN: 82-013418
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
BUILDINGS
INTERACTIONS
GROUND MOTION
MATHEMATICAL MODELS
NUCLEAR POWER PLANTS
SOILS
ANALYTICAL SOLUTION
COMPUTER CODES
COMPUTERIZED SIMULATION
FINITE DIFFERENCE METHOD
NONLINEAR PROBLEMS
S CODES
ITERATIVE METHODS
MOTION
NUCLEAR FACILITIES
NUMERICAL SOLUTION
POWER PLANTS
SIMULATION
THERMAL POWER PLANTS
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580300 - Mineralogy
Petrology
& Rock Mechanics- (-1989)