Abstract
The fundamental in-plane dynamic characteristics as well as the failure of two-hinged arch ribs subjected to the harmonic excitation and earthquake ground motion are investigated in this paper. In the analyses, the yielding of materials is taken into account in the finite deformations. Furthermore, the dynamic characteristics of stiffened deck arch bridges are presented paying special attention to the influence of the stiffening girder, its connection to the arch rib and the supporting conditions on the resisting capacity of arch bridges against the harmonic excitation.
