WAKE STUDY OF STIFFENING TRUSS AND BOX GIRDER

A 1:64 seale model of the William Preston Lane, Jr., Memorial Bridge was studied in the wind tunnel to determine possible downstream effects on a parallel structure. The model was tested in smooth flow and in a grid-induced turbulent flow with the model held rigidly and also in a mounting allowing torsional oscillation. A 3.1 model in turbulent flow, as a downstream distance of about 10 bridge widths, the wake is random in nature with somewhat higher turbulence intensities. For the smooth flow, significant effects are still noticeable at a spacing of over 13 widths, the maximum distance tested. The same conclusions obtained for the box, although at greater spacings. For the oscillating model in turbulent flow, a small effect remains at maximum distance, while strong effects remain for smooth flow at the same location. Testing real problems in turbulent flow is recommended. /ASCE/

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398
  • Authors:
    • REINHOLD, T A
    • Tieleman, H W
    • Maher, F J
  • Publication Date: 1976-9

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 1643-57
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00141792
  • Record Type: Publication
  • Report/Paper Numbers: ASCE # 12372
  • Files: TRIS
  • Created Date: Dec 22 1976 12:00AM