FEM model for analysis of RC prestressed thin-walled beams

This paper deals with service behavior of prestressed cracked thin-walled beams. A non linear finite element model for thin-walled beams has been developed. Deflections in the non-linear range are obtained by adopting a smeared crack model for concrete in tension. Contribution of steel bars in reducing deformation has been considered. An example of a thin-walled prestressed girder is presented.