Analysis for Dowel Bar’s Set Interval of Cement Concrete Pavement

Abstract

Through comprehensively considering transverse joint load transfer, dowel bar shearing, dowel bar bending, concrete’s borne dowel bar pressure and impact on pavement slab bottom’s flexural-tensile stress, adopting R · D · Bradbury dowel bar practical design checking formula and cement concrete pavement three-dimensional finite element analysis program EverFE for discussion of dowel bar’s set interval and combining with testing observation, I view that, dowel bar interval can be appropriately increased when pavement slab thickness is greater than 24cm which has practical significance for saving consumption for reinforcing steel bars of dowel bar and reasonably controlling highway construction cost.