Second-order inelastic analysis of cable-stayed bridges

Abstract

In this study, a fiber hinge beamcolumn model is proposed for predicting ultimate load-carrying capacity and ultimate behavior of cable-stayed bridges. Both geometric and material nonlinearities are included in the analysis. The geometric nonlinearities are captured using stability functions obtained from the exact stability solution of a beamcolumn subjected to axial force and bending moments. The material nonlinearities are considered by tracing the uniaxial stressstrain relationship of each fiber on the cross-sections located at the integration points along the member length. Using only one element per member in structural modeling, the nonlinear responses predicted by the proposed model ..