Static And Dynamic Analysisof Highway Prestressed Concrete Continuous Rigid Frame Bridges

Firstly, an introductory review of structural characterics of highwaycontinuous rigid frame bridges are summaried, and the project background and the main research work are described in this thesis. The three dimensional finite element model of the entire bridge, which is a 85m+150m+85m span highway continuous rigid frame bridge, is developed using general commercial sofware MIDAS/CIVIL 2012, and the finite element simulation of various parts of the bridge is detailed described. Using this modelforcs of the bridge are analyzed detailedly under dead load, live load, system temperature and girder temperature gradient in constrction phase and operational phase by this model, stresses and disformations of the bridge are analyzed and checked according to the most unfavorable load combination; the free vibration modes and frequencies of the bridge are analyzed using Lanczos method, spectrum analysis is carried out to analyze earthquake response.. Finally, he paper uses the PSC module of MIDAS/CIVIL 2012 conducting detailedcalculation based on specifications on the continuous beam of the bridge.