[article] 
inJournal of structural engineering > Vol. 137 N° 12 (Décembre 2011) . - pp. 1573-1582

Titre :	Reliability acceptance criteria for deteriorating elements of structural systems
Type de document :	texte imprimé
Auteurs :	Straub, Daniel, Auteur ; Der Kiureghian, Armen, Auteur
Année de publication :	2012
Article en page(s) :	pp. 1573-1582
Note générale :	Génie Civil
Langues :	Anglais (eng)
Mots-clés :	Structural reliability Probability Redundancy Deterioration Fatigue Acceptance criteria
Résumé :	A systematic approach to determining reliability-based acceptance criteria for deteriorating elements in structural systems is proposed as a basis for calibration of safety factors in codes and standards and for verifying acceptability of inspection and maintenance strategies for specific structures. The goal is to establish deterioration acceptance criteria for the elements of a structural system in compliance with criteria formulated for the system. Existing methods significantly overestimate the deterioration reliability of redundant structural systems because they neglect the joint effect of deterioration failures of different elements. To more realistically capture the load-sharing behavior of deteriorating redundant structural systems, it is proposed to establish deterioration acceptance criteria on the basis of easily computable, idealized structural systems, which are calibrated to the characteristics of the real structure. The approach is validated on an example structural system and is found to represent a significant improvement over current methods. The paper concludes with a study of the main factors influencing acceptance criteria of deterioration reliability.
DEWEY :	624.17
ISSN :	0733-9445
En ligne :	http://ascelibrary.org/sto/resource/1/jsendh/v137/i12/p1573_s1?isAuthorized=no

[article] Reliability acceptance criteria for deteriorating elements of structural systems [texte imprimé] / Straub, Daniel, Auteur ; Der Kiureghian, Armen, Auteur . - 2012 . - pp. 1573-1582.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 137 N° 12 (Décembre 2011) . - pp. 1573-1582

Mots-clés :	Structural reliability Probability Redundancy Deterioration Fatigue Acceptance criteria
Résumé :	A systematic approach to determining reliability-based acceptance criteria for deteriorating elements in structural systems is proposed as a basis for calibration of safety factors in codes and standards and for verifying acceptability of inspection and maintenance strategies for specific structures. The goal is to establish deterioration acceptance criteria for the elements of a structural system in compliance with criteria formulated for the system. Existing methods significantly overestimate the deterioration reliability of redundant structural systems because they neglect the joint effect of deterioration failures of different elements. To more realistically capture the load-sharing behavior of deteriorating redundant structural systems, it is proposed to establish deterioration acceptance criteria on the basis of easily computable, idealized structural systems, which are calibrated to the characteristics of the real structure. The approach is validated on an example structural system and is found to represent a significant improvement over current methods. The paper concludes with a study of the main factors influencing acceptance criteria of deterioration reliability.
DEWEY :	624.17
ISSN :	0733-9445
En ligne :	http://ascelibrary.org/sto/resource/1/jsendh/v137/i12/p1573_s1?isAuthorized=no