Load distribution for composite steel–concrete horizontally curved box girder bridge

摘要: Abstract A comprehensive numerical investigation is carried out to assess the load distribution mechanism of horizontally curved steel–concrete composite box girder bridges when subjected loading recommended by Australian Bridge Design Code and American Association State Highway Transportation Officials (AASHTO). In this investigation, effect various parameters such as curvature ratio, span length, number lanes cells considered. addition, a convergence study identify appropriate bracing system so retain maximum torsional rigidity these structures. The model first validated with actual test results that they can be adopted for an extensive parametric good confidence. obtained from are used determine factors moment shear bridges. It observed according AASHTO loads considerably higher than those Code. Hence, it not reasonable use factor based on guidelines design loading.