Accession Number : ADA296558

Title :   Reliability Index Versus Safety Factor of Structures.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Wilshusen, R. B.

PDF Url : ADA296558

Report Date : JUN 1995

Pagination or Media Count : 322

Abstract : In measuring structural safety, the reliability index concept is, by far, more explicit than the usual safety factor. The probabilistic reliability index incorporates uncertainty of member load and capacity into a comprehensive model, while the deterministic safety factor is normally the ratio of the two. The result, B, provides the engineer with a probability of failure, independent of the design criteria. The probabilistic method is especially useful in determining reliability under overload conditions; it also provides a transition between the Allowable Stress Design (A SD) mentality and the Load & Resistance Factor Design (LRFD) process. (MM)

Descriptors :   *STRUCTURAL ANALYSIS, *BEAMS(STRUCTURAL), *SAFETY FACTOR, *HIGH RELIABILITY, UNCERTAINTY, LOAD DISTRIBUTION, STRESS ANALYSIS, LOADS(FORCES), DISPLACEMENT, PROBABILITY, THESES, MOMENTS, STRENGTH(MECHANICS), SHEAR STRESSES, PLASTIC PROPERTIES, YIELD STRENGTH, DESIGN CRITERIA, FAILURE(MECHANICS), COLLAPSE, BEARING CAPACITY.

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE