01152411

Component

https://doi.org/10.3141/2154-06

http://scholar.google.com...+Won&publication_year=2010

Tie bars are used at longitudinal construction joints (LCJs) in portland cement concrete (PCC) pavement primarily to keep lanes from separating. As more lanes are tied together because of ever-increasing traffic volume, concerns about the potential for longitudinal cracking have led to the use of dowel bars at LCJs. However, a survey of a number of state highway agencies (SHAs) revealed that few of them have guidelines and design standards for the use of dowel bars at LCJs and that no in-depth studies conducted in this area have been identified. The effects of multiple lane ties and dowel bar placements in PCC pavements are analyzed in this paper to provide basic information on whether dowel bars are really needed, and if they are, where they should be placed and what their advantages and disadvantages are. Field testing verified that the longitudinal cracking potential is greater as slab thickness and lane width increase. The effects of multiple lane ties and dowel bar placements at LCJs are evaluated with numerical analysis. Placing dowel bars in lieu of tie bars reduces the longitudinal cracking potential, and the effectiveness of using dowel bars is enhanced when they are applied to thicker and wider pavements. However, the use of dowel bars could result in increased potential for lane separations.

01226063

10-4119

English

pp 57-77

2010

Transportation Research Record: Journal of the Transportation Research Board

9780309142946

Print

Figures (13) ; References (7) ; Tables (2)

Concrete pavements; Dowel bar retrofit; Dowels (Fasteners); Longitudinal cracking; Longitudinal joints; Multilane highways; State highway departments; Thickness; Tie bars

Environmental loads; Lane separation

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Jan 25 2010 12:08PM

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• Dynamic Analysis of Thin Asphalt Pavements by Using Cross-Anisotropic Stress-Dependent Properties for Granular Layer
• Effect of Grading on Degradation of Crushed-Rock Railway Ballast and on Permanent Axial Deformation
• Evaluating Effectiveness of Dowels in Jointed-Concrete Pavements with Faulting Data from Rapid-Travel Profilers
• Expert System for Design of Low-Volume Roads over Expansive Soils
• Influence of Base Clearance on Subgrade Resilient Modulus of Florida Roadway Pavements
• Investigation of Hot-Mix Asphalt Dynamic Modulus by Means of Field-Measured Pavement Response
• Longitudinal Joint Data Collection Efforts in Virginia Between 2005 and 2009
• Mitigating Transverse Joint Faulting in Jointed Concrete Pavement with Polyurethane Foam
• Near-Surface Pavement Failure Under Multiaxial Stress State in Thick Asphalt Pavement
• Process to Estimate Permit Costs for Movement of Heavy Trucks on Flexible Pavements
• Reliability Methods Applicable to Mechanistic–Empirical Pavement Design Method
• Simulation of Crack Propagation in Concrete Beams with Cohesive Elements in ABAQUS
• Test Method and Model Development of Subbase Erosion for Concrete Pavement Design
• Time-Dependent Behavior of Posttensioned Concrete Pavements Under Environmental Loading
• Unbound Aggregate Deformation Behavior due to Traffic Wander: Investigation Using Discrete Element Modeling
• Updating the Pavement Design Catalog for the Washington State Department of Transportation: Using 1993 AASHTO Guide, Mechanistic–Empirical Pavement Design Guide, and Historical Performance