Crack growth prediction of deck plate-stiffener joints in orthotropic steel bridge decks

J. Maljaars, D. Gration, E. Vonk, F. Dooren, van

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Orthotropic deck structures are used in many steel bridges. Due to the typical detailing applied as around 1970, a significant number of deck structures constructed in that period suffer from fatigue damage. In many countries cracks have been detected, in particular in the weld between the deck plate and the trapezoidal stiffener. These cracks tend to grow relatively slowly, but are difficult to detect in an early stage because they initiate from inside of the trapezoidal stiffener. This paper presents a model with which the growth of these cracks can be predicted. The model is aimed at the growth rate prediction of through-thickness cracks that can be detected by visual inspection. Stresses are extracted from a detailed finite element model of the entire deck. A second, local finite element model including the crack is used as the basis of a fracture mechanics model. The growth rate determined with the model is calibrated and validated with measured cracks in various bridges.
Original languageEnglish
Title of host publicationInternational Association for Bridge and Structural Engineering(IABSE) Conference, 6-8 May 2013, Rotterdam, The Netherlands
Place of PublicationRotterdam
Pages1571-1578
Publication statusPublished - 2013
Eventconference; International Association for Bridge and Structural Engineering; 2013-05-06; 2013-05-08 -
Duration: 6 May 20138 May 2013

Conference

Conferenceconference; International Association for Bridge and Structural Engineering; 2013-05-06; 2013-05-08
Period6/05/138/05/13
OtherInternational Association for Bridge and Structural Engineering

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