Post on 25-Feb-2016
description
U.S. Department of TransportationFederal Highway Administration
Long-Term Pavement Performance Program
Rigid Pavement Design Software
For the 1998 Supplement to the AASHTO Guide for Design of Pavement Structures, Part
II: Rigid Pavement Design &
Rigid Pavement Joint Design
Long-Term Pavement Performance Program
PRESENTATION OBJECTIVES
• What is the Rigid Pavement Design (RPD) Software?
• Development of the RPD Software• RPD Software Features and Capabilities • How To Use the RPD Software • Who Should Use the RPD Software and
Why• How to Get the RPD Software
Rigid Pavement Design Software: What It Is
• Microsoft Excel spreadsheet• Automates the design and analysis
procedures of the 1998 AASHTO Supplement
Rigid Pavement Design Software: What It Is
• Spreadsheet has separate sheets:(a) for determining:
– accumulated traffic loadings– seasonally adjusted k values– adjusted k-value for fill and/or depth to rigid
layer(b) for performing
– corner break checks– faulting cracks
PRESENTATION OBJECTIVES
• What is the Rigid Pavement Design (RPD) Software?
• Development of the RPD Software• RPD Software Features and Capabilities • How To Use the RPD Software • Who Should Use the RPD Software and
Why• How to Get the RPD Software
AASHTO Design Guide: Evolution
• AASHO Road Test (ART), 1958-1960• AASHO Interim Guides, 1961 & 1962• Revised Interim Guide, 1972• Revised Chapter III (rigid), 1981• AASHTO Guide for the Design of Pavement
Structures, 1986• AASHTO Guide for the Design of Pavement
Structures, 1993 (overlays)• Supplement to the AASHTO Guide for the Design of
Pavement Structures, 1998 (rigid pavement design)
AASHO Road Test (ART) Basis of AASHTO Design Guide
TYPICAL JPCP PAVEMENT (designed according to 1972-1989 versions AASHTO design guides)