Pavement Structural Analysis
The three-layer system in pavement structural analysis, as per Yoder & Witczak's Principles of Pavement Design, includes the top bituminous layer, base and subbase courses, and sub-grade. Stresses at interfaces, rationale, and tables for stress determination are explored.
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Pavement Structural Analysis Three-Layer System Highway and Transportation Engineering Al-Mustansiriyah University 2020-2021 Dr. Rana Amir Yousif & Dr. Abeer K. Jameel Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
References Nicholas J. Garber and Lester A. Hoel. Traffic and Highway Engineering , Fourth Edition. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975. Yaug H. Huang, Pavement Analysis and Design , Prentic Hall Inc., U.S.A., 1993. AASHTO Guide for Design of Pavement Structures 1993 , AASHTO, American Association of State Highway and Transportation Officials, U.S.A., 1993. Oglesby Clarkson H., HighwayEngineering , John Wiley & Sons Inc., U.S.A., 1975. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Three-Layer Systems With quick computational facilities available, the analysis of three or more layers is no more a difficult task. The three-layer system can be conceived as follows: 1. Top layer, representing all the bituminous layers taken together, 2. Second layer, representing the unbound base and subbase courses, and 3. Third layer, representing the sub-grade. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Three-Layer Systems Figure 2-29 shows a three-layer system and the stresses at the interfaces on the axis of symmetry. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Three-Layer Systems At the axis of symmetry, tangential and radial stresses are identical and the shear stress is equal to 0. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Three-Layer Systems Jones has developed a series of tables for determining the stresses in a three-layer system for the following dimensionless parameters Jones' Tables: The stresses in a three-layer system depend on the ratios k1, k2, A, and H, defined as Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Three-Layer Systems Once the stresses at the interfaces are calculated, strains can be computed from the equations of strains. Yoder; E. J. and M. W. Witczak, Principles of Pavement Design , A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Yoder; E. J. and M. W. Witczak, Principles of Pavement Design, A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
Yoder; E. J. and M. W. Witczak, Principles of Pavement Design, A Wiley- Interscience Publication, John Wiley & Sons Inc., U.S.A., 1975.
