00824538

Component

https://doi.org/10.3141/1778-08

http://scholar.google.com...rter&publication_year=2001

A rapid solution is presented for predicting critical tensile stresses on the top surface of continuously reinforced concrete pavements (CRCP). These tensile stresses are responsible for the development of CRCP punchouts and have to be considered in a mechanistic-based design procedure. The solution is based on a combination of the neural network (rapid solution) and finite element (numerical analysis) techniques. This approach combines the convenience and computational efficiency of neural network solutions with the flexibility and power of the finite element analysis. Such a combination is quite efficient for analyzing damage accumulation in CRCP, which requires predicting portland cement concrete tensile stresses for a large number of loading and site condition combinations. The procedure for stress prediction is based on the finite element model developed with ISLAB2000. The neural network has been trained with the results from ISLAB2000. A concept developed specifically for this study--the equivalent CRCP structure--was used extensively to reduce the number of independent parameters of the neural network and speed up its training. The proposed rapid solution provides a good match of the ISLAB2000 stress values for a small fraction of the computation cost. This makes the rapid solution CRCP a natural choice for analyzing CRCP stresses and for inclusion in a mechanistic-empirical CRCP design procedure.

This paper appears in Transportation Research Record No. 1778, Design and Rehabilitation of Pavements 2001.

English

p. 64-72

2001

Transportation Research Record

0309072425

Figures (7) ; References (23) ; Tables (1)

Continuously reinforced concrete pavements; Finite element method; Forecasting; Neural networks; Pavement design; Pavement distress; Stresses

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Feb 8 2002 12:00AM

• AASHTO DRAINAGE COEFFICIENTS FOR FLEXIBLE PAVEMENTS
• ANALYSIS OF IN SITU HORIZONTAL JOINT MOVEMENTS IN RIGID PAVEMENTS
• BENEFITS AND COSTS OF JOINTED PLAIN CONCRETE PAVEMENT DESIGN FEATURES
• CHARACTERIZATION AND MODELING OF AXIAL SLAB-SUPPORT RESTRAINT
• CHARACTERIZATION OF ASPHALT CONCRETE LAYER INTERFACES
• CHARACTERIZATION OF STIFFNESS PARAMETERS IN DESIGN OF CONTINUOUSLY REINFORCED AND JOINTED PAVEMENTS
• CONSTRUCTION AND PERFORMANCE OF ALTERNATIVE CONCRETE PAVEMENT DESIGNS IN WISCONSIN
• DESIGN, CONSTRUCTION, AND MAINTENANCE GUIDELINES FOR POROUS ASPHALT PAVEMENTS
• EARLY AGE STRESSES AND DEBONDING IN BONDED CONCRETE OVERLAYS
• EFFECTS OF INTERFACE CONDITION AND HORIZONTAL WHEEL LOADS ON THE LIFE OF FLEXIBLE PAVEMENT STRUCTURES
• FLEXIBLE PAVEMENT DESIGN IN MICHIGAN: TRANSITION FROM EMPIRICAL TO MECHANISTIC METHODS
• GRANULAR OVERLAYS ON LOW-VOLUME ROADS IN WASHINGTON STATE: STRUCTURAL AND PERFORMANCE CHARACTERISTICS
• LAYER THICKNESS VARIABILITY FOR FLEXIBLE PAVEMENTS IN NORTH CAROLINA
• MEASURING RESILIENT MODULUS OF GRANULAR MATERIALS IN FLEXIBLE PAVEMENTS
• MODELING OF JOINTED PLAIN CONCRETE PAVEMENT FATIGUE CRACKING IN PAVESPEC 3.0
• OVERLAY PERFORMANCE IN CANADIAN STRATEGIC HIGHWAY RESEARCH PROGRAM'S LONG-TERM PAVEMENT PERFORMANCE STUDY
• PROPAGATION MECHANISMS FOR SURFACE-INITIATED LONGITUDINAL WHEELPATH CRACKS (WITH DISCUSSION AND CLOSURE)
• REPAIR OF ULTRATHIN WHITETOPPING PAVEMENTS
• THIN BONDED CONCRETE OVERLAYS IN ILLINOIS: PRELIMINARY REPORT ON PERFORMANCE
• USE OF LONG-TERM PAVEMENT PERFORMANCE DATA FOR CALIBRATION OF PAVEMENT DESIGN MODELS
• USING PAVEMENT AS SOLAR COLLECTOR: EFFECT ON PAVEMENT TEMPERATURE AND STRUCTURAL RESPONSE
• VALIDATION OF HIPERPAV FOR PREDICTION OF EARLY-AGE JOINTED CONCRETE PAVEMENT BEHAVIOR