Reliability evaluation of containments including soil-structure interaction
Soil-structure interaction effects on the reliability assessment of containment structures are examined. The probability-based method for reliability evaluation of nuclear structures developed at Brookhaven National Laboratory is extended to include soil-structure interaction effects. In this method, reliability of structures is expressed in terms of limit state probabilities. Furthermore, random vibration theory is utilized to calculate limit state probabilities under random seismic loads. Earthquake ground motion is modeled by a segment of a zero-mean, stationary, filtered Gaussian white noise random process, represented by its power spectrum. All possible seismic hazards at a site, represented by a hazard curve, are also included in the analysis. The soil-foundation system is represented by a rigid surface foundation on an elastic halfspace. Random and other uncertainties in the strength properties of the structure, in the stiffness and internal damping of the soil, are also included in the analysis. Finally, a realistic reinforced concrete containment is analyzed to demonstrate the application of the method. For this containment, the soil-structure interaction effects on; (1) limit state probabilities, (2) structural fragility curves, (3) floor response spectra with probabilistic content, and (4) correlation coefficients for total acceleration response at specified structural locations, are examined in detail. 25 refs., 21 figs., 12 tabs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6277429
- Report Number(s):
- NUREG/CR-4329; BNL-NUREG-51906; ON: TI86004934
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CONTAINMENT BUILDINGS
FLOORS
RESPONSE FUNCTIONS
NUCLEAR POWER PLANTS
SEISMIC EFFECTS
SOIL-STRUCTURE INTERACTIONS
EARTHQUAKES
MATHEMATICAL MODELS
PROBABILITY
REINFORCED CONCRETE
RELIABILITY
BUILDING MATERIALS
BUILDINGS
CONCRETES
CONTAINMENT
FUNCTIONS
MATERIALS
NUCLEAR FACILITIES
POWER PLANTS
REINFORCED MATERIALS
SEISMIC EVENTS
THERMAL POWER PLANTS
220900* - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories