2023
DOI: 10.3390/ma16155217
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Study on Fatigue Cracking of Diaphragm’s Arc Opening of OSD in Steel Bridges by Using Biaxial Stress Method

Abstract: Changes in loading position have a significant impact on the stress field of each vulnerable area of an orthotropic steel deck (OSD). The arc opening area of the diaphragm and the connecting area between the U-rib and the diaphragm under the moving load are prone to fatigue cracking. By comparing the stress responses under different methods, the hot spot stress (HSS) method is used as the main stress extraction method in fatigue performance evaluation. The control stress of fatigue cracking was analyzed by com… Show more

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“…This may not only affect the usability and comfort of the bridge but also pose a threat to the structural safety of the bridge. To analyze the influence of the changes in structural parameters on the dynamical properties of the bridge, the rigidity of the steel truss, the rigidity of the cable, the stiffness of the pylon, and the position of the auxiliary pier have changed now [28][29][30][31][32][33][34][35][36][37][38]. For the convenience of illustration, the first 10 order modes of the bridge are numbered as M1~M10.…”
Section: Sensitivity Analysis Of the Fem Parametersmentioning
confidence: 99%
“…This may not only affect the usability and comfort of the bridge but also pose a threat to the structural safety of the bridge. To analyze the influence of the changes in structural parameters on the dynamical properties of the bridge, the rigidity of the steel truss, the rigidity of the cable, the stiffness of the pylon, and the position of the auxiliary pier have changed now [28][29][30][31][32][33][34][35][36][37][38]. For the convenience of illustration, the first 10 order modes of the bridge are numbered as M1~M10.…”
Section: Sensitivity Analysis Of the Fem Parametersmentioning
confidence: 99%