Numerical evaluation of long-term behaviour for continuous steel-concrete composite beams

In the paper, results obtained by using a new finite element model for the study of steel-concrete composite beams are presented. Creep, shrinkage, cracking in tensile zone for concrete and non linear elastic deformable connection are considered. By means of numerical and experimental comparisons it is shown how this numerical approach provides accurate results. The most important parameters that influence the response are analysed and same effects of viscous phenomena on serviceability and ultimate limit states are presented.