University of Illinois Urbana-Champaign

Reliability Analysis of Redundant Ductile Structural Systems

Ma, H-F.; Ang, A.H-S.

Content Files
SRS-494.pdf

Permalink

https://hdl.handle.net/2142/14103

Description

Title
Reliability Analysis of Redundant Ductile Structural Systems
Author(s)
  • Ma, H-F.
  • Ang, A.H-S.
Issue Date
1981-08
Keyword(s)
Ductile systems
Date of Ingest
2009-10-29T14:26:54Z
Abstract
A practical method for determining the point estimate of the collapse probability of ductile structural systems, particularly, plastic frameworks and trusses is developed. In addition to the assumption that classical simple plastic method of analysis is applicable, the magnitudes of loads and the component resistance capacities of a structure are assumed to be stochastic with known distributions (e.g., normal). The first step of the proposed method of analysis is to identify the major collapse mechanisms. This step is transformed into an unconstrained nonlinear minimization problem and Hooke and Jeeves pattern search was adopted as the solution technique. Once the major mechanisms are identified, their corresponding performance functions may be developed through the principle of virtual work, from which the individual mechanism collapse probabilities are calculated. The system collapse probability is then evaluated through the method of PNET. Results of the propose~ method showed good agreement with corresponding Monte Carlo calculations for a wide variety of example problems examined.
Publisher
University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report Name or Number
Civil Engineering Studies SRS-494
Type of Resource
text
Genre of Resource
Technical Report
Language
en
Permalink
http://hdl.handle.net/2142/14103
Sponsor(s)/Grant Number(s)
National Science Foundation Grants ENG 77-02007 and PFR 80-02584

Owning Collections

Civil Engineering Studies: Structural Research Series PRIMARY