A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A Sensitivity Analysis of Rigid Pavement Overlay Design Procedure
Presently there are no overlay design procedures or criteria for determining the structural value of existing pavement and its remaining life and for evaluating how the layers will function in an overlaid pavement. Furthermore, none considers fatigue, a primary failure mode or mechanism. Recently, Austin Research Engineers, Inc., under a Federal Highway Administration contract, developed a design procedure using elastic layered theory in an analytical model for overlays of rigid pavements which takes these factors into account. The procedure includes a computer program, RPOD1, which performs various aspects of the analysis required for the design. Depending on the type of existing surface conditions, void, bond, and materials used in the overlays, 22 combinations of pavements and overlays are possible. RPOD1 involves nearly 17 independent variables and the final response is the overlay thickness suitable for the projected traffic. This report describes a sensitivity analysis to establish the relative importance of the independent variables to the response, i.e., the required thickness. For the analysis, the standard deviation is selected as a basis of sensitivity to facilitate interpretation of the final results.
A Sensitivity Analysis of Rigid Pavement Overlay Design Procedure
Presently there are no overlay design procedures or criteria for determining the structural value of existing pavement and its remaining life and for evaluating how the layers will function in an overlaid pavement. Furthermore, none considers fatigue, a primary failure mode or mechanism. Recently, Austin Research Engineers, Inc., under a Federal Highway Administration contract, developed a design procedure using elastic layered theory in an analytical model for overlays of rigid pavements which takes these factors into account. The procedure includes a computer program, RPOD1, which performs various aspects of the analysis required for the design. Depending on the type of existing surface conditions, void, bond, and materials used in the overlays, 22 combinations of pavements and overlays are possible. RPOD1 involves nearly 17 independent variables and the final response is the overlay thickness suitable for the projected traffic. This report describes a sensitivity analysis to establish the relative importance of the independent variables to the response, i.e., the required thickness. For the analysis, the standard deviation is selected as a basis of sensitivity to facilitate interpretation of the final results.
A Sensitivity Analysis of Rigid Pavement Overlay Design Procedure
B. C. Nayak (author) / W. R. Hudson (author) / B. F. McCullough (author)
1977
155 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Concrete pavements , Maintenance , Coverings , Concrete construction , Portland cements , Fatigue life , Computer applications , Fortran , User needs , Design criteria , Pavement overlays , Computer aided design , RPOD1 computer program , Sensitivity analysis
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