Investigations of cracking mechanisms of sport city overpass bridge by the fe method

الملخص EN

This paper describes the finite-element modeling philosophy employed for the analysis of a long span bridge constructed using prestressed composite girder technology.

The structure has been in service since late 1970’s, and has innumberable visible shear cracks originating near the supports.

The present investigation has been under taken in order to identify the possible mechanisms for the shear cracks.

The ABAQUS finite-element package is used to simulate and identify the possible mechanism for the shear cracks under dead and live load (traffic load).

The results obtained from the finite-element analysis are evaluated and the effectiveness of the model is assessed by comparison of the crack patterns of the numerical results and the observations.

Some conclusions are made on the cracking mechanisms.