A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A reliability-based methodology for considering corrosion effects on fatigue deterioration in steel bridges - Part I: Methodology -
Abstract It is known that the effects of corrosion on fatigue originate from two major sources: stress concentration due to corrosion discontinuities (CNF factor) and stress amplification due to loosing net section (NAF factor). In order to account for these effects, a performance function is developed which takes CNF and NAF factors into account and considers both random and time-dependent nature of the involved parameters. In order to consider real fatigue and environmental conditions, the available CNF-y and y-t functions are extended employing α and φ factors, respectively. In addition, some recommendations have been made to establish corrosion pattern of different steel sections. The final output of the methodology is development of a reliability-based procedure to establish time-dependent deterioration profile of a structural member, which assists in decision-making with regard to maintenance activities. The proposed methodology has been applied to Neka Bridge, a railway bridge in northern Iran, which is presented in Part II.
A reliability-based methodology for considering corrosion effects on fatigue deterioration in steel bridges - Part I: Methodology -
Abstract It is known that the effects of corrosion on fatigue originate from two major sources: stress concentration due to corrosion discontinuities (CNF factor) and stress amplification due to loosing net section (NAF factor). In order to account for these effects, a performance function is developed which takes CNF and NAF factors into account and considers both random and time-dependent nature of the involved parameters. In order to consider real fatigue and environmental conditions, the available CNF-y and y-t functions are extended employing α and φ factors, respectively. In addition, some recommendations have been made to establish corrosion pattern of different steel sections. The final output of the methodology is development of a reliability-based procedure to establish time-dependent deterioration profile of a structural member, which assists in decision-making with regard to maintenance activities. The proposed methodology has been applied to Neka Bridge, a railway bridge in northern Iran, which is presented in Part II.
A reliability-based methodology for considering corrosion effects on fatigue deterioration in steel bridges - Part I: Methodology -
Hosseini, Abdollah (author) / Sahrapeyma, Ali (author) / Marefat, Mohammad-S (author)
International Journal of Steel Structures ; 13 ; 645-656
2013-12-01
12 pages
Article (Journal)
Electronic Resource
English
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