Effect of Dowel Bar Arrangements on Performance of Jointed Plain Concrete Pavement (JPCP)

Project Details
STATE

FL

SOURCE

TRID

END DATE

12/01/18

RESEARCHERS

Kukjoo Kim, Sanghyun Chun, Sangyoung Han, Mang Tia

SPONSORS

FLDOT

KEYWORDS

Concrete pavements, Dowels (Fasteners), Finite element method, Load transfer, Longitudinal cracking, Pavement cracking, pavement maintenance, Pavement performance, Spalling, Transverse cracking

Project description

A full-scale jointed plain concrete pavement (JPCP) with two different dowel bar arrangements, namely, standard and special method, was constructed and evaluated under actual traffic-environmental condition in Florida. For standard dowel bar arrangement, dowel bars spaced at 304.8 mm (12 in), while three dowel bars spaced at 304.8 mm (12 in) only within the wheel paths were installed for special dowel bar arrangement. Field performance evaluation was conducted in terms of longitudinal crack, transverse crack, corner crack, spalling, and load transfer efficiency (LTE). Also, a three-dimensional (3-D) finite element (FE) model was developed to evaluate change in structural response characteristics due to different dowel bar arrangements under the critical loading condition.
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