Dynamic analysis of box-girder bridges using a higher order finite strip formulation

Abstract EN

In this paper a higher order finite strip formulation based on the auxiliary nodal line (ANL) technique for both free and forced vibration analysis of box-girder bridges is presented The free vibration analysis has been performed using the subspace iteration method The dynamic response of both stiffened plate and box-girder bridge under moving vehicles is investigated The vehicle is idealized as a single moving force.

Four examples have been studied to show the good performance of the higher order finite strip with one ANL for free and forced vibration analysis of plate, stiffened plate and box-girder bridges.

Guy an reduction (mass reduction) technique is adopted to eliminate the auxiliary nodal line parameters for both bending and in-plane actions.