Three-Dimensional Analysis and Load Rating of the Innerbelt Bridge

摘要

This paper describes the modeling of a deck truss bridge in three-dimensions using finite element analysis software, and the application of code provisions to load rate the bridge. The procedures used to determine the degree of joint fixity utilized in the model and the effects of eccentric loading and joint fixity on analysis results are discussed. A comparison is provided between beam element structural analysis results, strains obtained from static load tests of the actual structure, and the results of detailed plate finite element modeling.