As part of a bridge replacement program, a deteriorated 33 ft long existing steel bridge with timber deck structure on concrete abutments was replaced with a 36 ft span precast concrete modular buried bridge structure. The new 42 ft long bridge, designed for an AASHTO HS 25 Truck Loading, consisted of seven arch-box modular units. Each unit was six ft wide with a nine ft rise. The structure was backfilled with granular material according to the Ohio Department of Transportation's (ODOT's) 304 Grading requirements and was compacted at relative compaction rate of 95% per Standard Proctor Test. Following the bridge installation, a full-scale load test was conducted on the middle unit which was instrumented with a series of dial gauges and earth pressure cells. Consequently, vertical and horizontal deflections, outside soil pressures, and crack widths were continuously monitored while load was applied in 10 kip increments. Maximum deflection was less than one and one-half in. at 200 kips applied load which was the limit of jack capacity and was seven and one-half times the design load. Data from measured live-load deflections and earth pressures were compared with finite element computer analysis. The results of the load test revealed a good correlation between the computer model generated by the modified CANDE program and the structure's field performance. A complete compilation of field data and a rigorous finite element analysis are included herein.

  • Corporate Authors:

    Dayton University

    Department of Civil Engineering and Environmental Engineering and Engineering Mechanics
    Dayton, OH  United States  45409

    Ohio Department of Transportation

    25 South Front Street
    Columbus, OH  United States  43215
  • Authors:
    • Zoghi, M
  • Publication Date: 1994-1


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 26 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00662768
  • Record Type: Publication
  • Report/Paper Numbers: OHIO/HWY-01/94
  • Contract Numbers: State Job No. 14544(0)
  • Created Date: Jun 30 1994 12:00AM