An experimental investigation into fatigue behaviors of single- and double-sided U rib welds in orthotropic bridge decks. (June 2022)

• Record Type: Journal Article
• Authors: Yang, Haibo; Wang, Ping; Qian, Hongliang; Niu, Shuang; Dong, Pingsha
• Is Part Of: International journal of fatigue. Volume 159(2022)
• Publication Date: 2022-06
• Subjects: Orthotropic steel bridge decks -- Single- and double-sided welded joints -- Traction structural stress method -- Fatigue resistance property of welded joints -- Correction of angular misalignment and stress ratio; Materials -- Fatigue -- Periodicals; Materials -- Fatigue; Periodicals; 620.1122
• DOI: 10.1016/j.ijfatigue.2022.106827
• Languages: English
• ISSNs: 0142-1123

Abstract

Graphical abstract: Highlights: The fatigue resistance property of single- and double-sided welded joints in OBD is investigated by conducting experimental and numerical studies. The prediction results will be more accurate considering effect factors of angular misalignments and stress ratio. The specific united master S-N curve for the fatigue performance prediction of single- and double-sided welded joints in OBD is recommended. Abstract: In this study, the fatigue resistance properties of single- and double-sided welded joints in OBD are investigated using the traction structural stress method by conducting experimental and numerical investigations. Full-scale fatigue specimen tests are conducted to analyze the fatigue property validations and failure modes, considering the effects of length scale, residual stress relaxation, angular misalignment corrections, and stress ratio. Double-sided welded joints have been found to fail at the interior weld toe with the propagation direction of deck thickness, and the prediction results will be more accurate considering the effect factors of angular misalignments and stress ratio. The specific united master S-N curve for the fatigue performance prediction of single- and double-sided welded joints in OBDs is recommended with the combination of fatigue test data.