STRUCTURAL BEHAVIOR OF A REINFORCED CONCRETE ARCH CULVERT (PHASE 3-CEDAR CREEK)--SECTION VII (VOLUME 1): FINITE ELEMENT ANALYSES (METHOD A BACKFILL)

Finite element analyses were made of the embankment surrounding a 22-ft (6.7 m), reinforced concrete arch culvert under 191 ft (58 m) of overfill by means of two programs: (1) PYPSIT (constant strain triangles, iterative equation solver; UC, Berkeley); and, (2) IPSA (quadrilateral elements, Gauss linear equation solver; UC, Davis). Soil elastic moduli were determined by Kondner's method; triaxial tests did not permit assessment of Poisson's ratio. Soil stresses acting on the arch extrados for the wH:0.3wH distribution commonly used in design were closely predicted by an analysis with fully fixed boundaries and an assumed upsilon of 0.35. Lateral soil stresses increased with increasing Poisson's ratio and with release of boundary constraints, due to "weding" phenomena. Soil stresses predicted by linear elastic, gravity-turn-on or incremental analyses were similar, but embankment displacements could be reasonably predicted only by incremental analyses. None of the analyses correctly assessed the amonalous soil stress distribution derived from stressmeter readings. /FHWA/

  • Availability:
  • Supplemental Notes:
    • This report was performed in conjunction with the research project entitled "Arch Culvert Study" in cooperation with the DOT, Federal Highway Administraion.
  • Corporate Authors:

    California Department of Transportation

    Division of Structures and Engineering Services, 1120 N Street
    Sacramento, CA  United States  95814
  • Authors:
    • Davis, R E
    • Nix, H D
    • Bacher, A E
  • Publication Date: 1977-6

Media Info

  • Pagination: 30 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00182701
  • Record Type: Publication
  • ISBN: 624120/624183
  • Report/Paper Numbers: FHWA-CA-ST4120-77-09Final Rpt., FCP 45I2-102
  • Contract Numbers: D-4-11
  • Files: TRIS, STATEDOT
  • Created Date: Oct 12 1978 12:00AM