2023
DOI: 10.1177/13694332231153968
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Experimental study on fatigue behavior of trapezoidal rib-to-deck welded joints in orthotropic steel decks strengthened with CFRP sheets

Abstract: Due to the unavoidable stress concentrations and welding defects, the trapezoidal rib-to-deck welded joints of Orthotropic Steel Bridge Decks (OSBD) are prone to fatigue cracking. It is a new exploration to apply Carbon Fiber Reinforced Polymer (CFRP) sheets to strengthen the complex welded joints to improve the fatigue strength. In this paper, the comparative tests of un-strengthened and CFRP strengthened welded joints were carried out. The hot spot stress distribution under static load and fatigue behavior u… Show more

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