The Analysis of Dowel and Tie Bars Effects on Curling up in ConcretePavement Slabs

摘要

The effects of dowels and tie bars on curling in concrete pavement slabs isstill not clear in design. Therefore, a 3D finite element model (FEM) of themulti-slabs resting on elastic foundations is developed to investigate this effects,and the design plan of dowels and tie bars in FEM are determined according tocement concrete pavement design specification in China, and in FEM beamelement is employed to simulate the dowels and tie bars. From the calculatedresults, the tie bars effects on slab curling is little, and dowels effects is veryobvious at slab joints where the stress will increase and curling up will decrease,but for the whole slab the effects of dowels is not obvious.