Title
An alternative approach for addressing the failure probability-safety factor method with sensitivity analysis
Abstract
The paper introduces a method for solving the failure probability-safety factor problem for designing engineering works proposed by Castillo et al. that optimizes an objective function subject to the standard geometric and code constraints, and two more sets of constraints that simultaneously guarantee given safety factors and failure probability bounds associated with a given set of failure modes. The method uses the dual variables and is especially convenient to perform a sensitivity analysis, because sensitivities of the objective function and the reliability indices can be obtained with respect to all data values. To this end, the optimization problems are transformed into other equivalent ones, in which the data parameters are converted into artificial variables, and locked to their actual values. In this way, some variables of the associated dual problems become the desired sensitivities. In addition, using the proposed methodology, calibration of codes based on partial safety factors can be done. The method is illustrated by its application to the design of a simple rubble mound breakwater and a bridge crane.
Year
DOI
Venue
2003
10.1016/S0951-8320(03)00164-9
Reliability Engineering & System Safety
Keywords
DocType
Volume
Sensitivity analysis,Optimization,Automatic design,Duality
Journal
82
Issue
ISSN
Citations 
2
0951-8320
3
PageRank 
References 
Authors
1.45
0
4
Name
Order
Citations
PageRank
Enrique Castillo155559.86
Antonio Conejo218924.33
Roberto Mínguez3439.56
Carmen Castillo4577.43