Numerical Investigation on the Behaviour of Horizontally Curved Steel Box Girder Under Patch Loading

To get around topographical barriers, curved girders are frequently employed in bridge construction. Due to high flexural and torsional rigidity, girders with box cross-section are preferred over I-girders in these circumstances. Patch loading is one of the most typical loads a girder is subjected to. The present study carried out a numerical investigation of horizontally curved box girder under patch loading condition using a finite element model developed in ABAQUS CAE®. The existing experimental data in literature were used to validate the models. The study’s primary goal is to examine the behaviour of the curved box girder under patch load and to analyse how patch load length affect its ultimate strength. The main parameters considered in this study are curvature angle, aspect ratio and web slenderness ratio.