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Fatigue Behaviour of L-section Stiffener to Crossbeam Joints in Orthotropic Steel Bridge Decks

Fatigue Behaviour of L-section Stiffener to Crossbeam Joints in Orthotropic Steel Bridge Decks The problem investigated in this paper mainly deals with the fatigue behaviour of L-section stiffener to crossbeam joints in orthotropic steel bridge decks. Static and fatigue tests were carried out on two panels composed of one deck plate, five L-section longitudinal stiffeners and two crossbeams. Eleven cracks were observed at the circular arc edges of cut-outs in the crossbeams, except for two cracks at the weld toes in the stiffener to deck plate joint. Stress state at two sides of cut-outs is duscussed. The calculated stresses from a finite element analysis agree well with these measured from the static test. The maximum principal stress ranges along circular arc edges are important factors influencing the fatigue behaviour of cut-outs. The S-N curve for their fatigue design is proposed using a regression analysis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

Fatigue Behaviour of L-section Stiffener to Crossbeam Joints in Orthotropic Steel Bridge Decks

Advances in Structural Engineering , Volume 2 (4): 7 – Aug 1, 1999

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Publisher
SAGE
Copyright
Copyright © 1998 Multi-Science Publishing Co. Ltd.
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1177/136943329900200402
Publisher site
See Article on Publisher Site

Abstract

The problem investigated in this paper mainly deals with the fatigue behaviour of L-section stiffener to crossbeam joints in orthotropic steel bridge decks. Static and fatigue tests were carried out on two panels composed of one deck plate, five L-section longitudinal stiffeners and two crossbeams. Eleven cracks were observed at the circular arc edges of cut-outs in the crossbeams, except for two cracks at the weld toes in the stiffener to deck plate joint. Stress state at two sides of cut-outs is duscussed. The calculated stresses from a finite element analysis agree well with these measured from the static test. The maximum principal stress ranges along circular arc edges are important factors influencing the fatigue behaviour of cut-outs. The S-N curve for their fatigue design is proposed using a regression analysis.

Journal

Advances in Structural EngineeringSAGE

Published: Aug 1, 1999

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