Concrete shrinkage effects in composite beams

Structural mechanics

The text analyses stresses in composite beam, as a result of time - dependent concrete slab shrinkage, where in addition to analytical solution of stress distribution, numerical solution is given as well, using structural software SAP2000 v 16. For linear behavior of the headed stud anchors, whose stiffness for varying diameters is determined using separate finite element model, a comparison between numerical and analytical solutions of stress distribution is shown. Shrinkage strain is determined using EC2. For purposes of the finite element model, this strain is converted into equivalent temperature load.