DIPLOMAT: ANALYSIS PROGRAM FOR BITUMINOUS AND CONCRETE PAVEMENTS

Burmister's layered elastic theory is extended to accommodate an interior loading of a multilayered pavement system incorporating an arbitrary sequence of elastic plates and spring beds, in addition to isotropic layers. The formulation is coded into a new computer program, called DIPLOMAT, thereby allowing for the first time direct comparisons between the distinct analytical approaches conventionally used for so-called rigid and flexible pavements. The new program is as user friendly and computationally efficient as the widely used layered elastic analysis program BISAR. In addition to permitting multiple-wheel loads, DIPLOMAT may be used to investigate the effects of a variety of interface and boundary conditions, including that of a rigid base. When considering a plate on grade, DIPLOMAT reproduces the closed-form solutions by Westergaard (dense liquid foundation) and by Losberg (elastic solid foundation). On the other hand, for a pavement section consisting of up to five isotropic layers, the new program reproduces the BISAR solutions for bonded or unbonded layers. A number of applications of the program are presented, including an assessment of the structural contribution of compressible (granular or bituminous) bases under a concrete pavement slab, and determination of the interface spring stiffness that accounts for constructed layer compressibility. Some implications of program results to pavement design are also discussed.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1995/1482/1482-007.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=DIPLOMAT%3A+ANALYSIS+PROGRAM+FOR+BITUMINOUS+AND+CONCRETE+PAVEMENTS&author=L.+Khazanovich&author=A.+Ioannides&publication_year=1995
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1482, Pavement Design and Analysis. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Khazanovich, Lev
  • Ioannides, Anastasios M
• Publication Date: 1995

Language

• English

Media Info

• Features: References; Tables;
• Pagination: p. 52-60
• Monograph Title: Pavement design and analysis
• Serial:
  • Transportation Research Record
  • Issue Number: 1482
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Computer programs; Flexible pavements; Pavement design; Rigid pavements; Structural analysis
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00713503
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Nov 7 1995 12:00AM