ULTIMATE LOAD TEST OF TRUSS BRIDGE FLOOR SYSTEM

An old pin-connected high-truss single-lane bridge, located in an area which will be flooded due to the construction of the Saylorville Dam, was tested to failure. Only the portion of the testing program related to the ultimate load testing of the timber deck is examined herein. Each deck panel was tested to failure using simulated axle load which was applied by hydraulic jacks. One deck panel was tested with the loads centered and the other was tested with the loads eccentrically placed with respect to the center line of the bridge deck. The behavior of the deck at loads up to failure of one of the stringers, compared quite well with that predicted by the AASHO Specifications. The deck was rated by three different agencies. Although there was some variation in the ratings, they compare favorably and are approx 32% of the test capacity. /Author/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Sanders Jr, W W
  • Klaiber, F W
  • Elleby, H A
  • Timm, L W
• Publication Date: 1976-7

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: p. 1383-98
• Serial:
  • Journal of the Structural Division
  • Volume: 102
  • Issue Number: ST7
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Axle load force; Breaking loads; Bridge decks; Bridge design; Bridges; Eccentricity; Failure; Floors; Joints; Loads; Pins; Simulation; Specifications; Stringers; Structural design; Testing; Truss bridges
• Uncontrolled Terms: Eccentric loading
• Old TRIS Terms: Pin connected joints
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00139587
• Record Type: Publication
• Report/Paper Numbers: ASCE #12247
• Files: TRIS
• Created Date: Oct 6 1976 12:00AM