PROPOSED VEHICLE LOADING OF LONG-SPAN BRIDGES

Two completely different methods have been derived for predicting the loading on a long-span bridge, given a knowledge of the average mix of traffic. Both methods are in good agreement. It is shown that the load can be represented as a uniform load and a concentrated load to give maximum moments and shears with a reasonable degree of accuracy. Unlike the findings of previous authors, the concentrated load is found to increase with the length of bridge that is loaded, whereas the uniform component decreases with length as would be expected. Examples are given for four levels of traffic ranging from very light to very heavy and comparisons show that the loading is not unduly sensitive to the percentage of trucks in the traffic stream. (ASCE)

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Buckland, P G
  • Navin, FPD
  • Zidek, J V
  • McBryde, J P
• Publication Date: 1980-4

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 915-932
• Serial:
  • Journal of the Structural Division
  • Volume: 106
  • Issue Number: ST4
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Length; Long span bridges; Molecular structure; Shear strength; Traffic loads; Trucks; Vehicles
• Subject Areas: Bridges and other structures; Freight Transportation; Highways; Motor Carriers; Vehicles and Equipment;

Filing Info

• Accession Number: 00311327
• Record Type: Publication
• Report/Paper Numbers: ASCE 15306 Proceeding
• Files: TRIS
• Created Date: Oct 27 1980 12:00AM