INVESTIGATION OF BRIDGE APPROACH SPANS TO POPLAR STREET BRIDGE

The findings of this study indicate that under normal circumstances problems may develop with certain pin-connected details that can result in major structural damage to the main supporting members of a bridge. The structural problems that have occurred with the bridges on the Poplar Street Complex are given as an example. It appears that the use of pin-connected details subjected to large rotations and utilizing untreated, corrosive mild steels should be avoided for highway bridges. Consideration should be given to the use of elastomeric, TFE-elastomeric, and elastomeric pot-type bearings in the design of new structures. Other structural problems that have developed with the Complex also indicate a need for further research on the overall behavior of two-girder systems under all modes of loading with major emphasis on the interaction between the diaphragms or floor beams and the main girders. The research should be oriented toward developing design details that would eliminate web cracking as found near the top of the fillet weld connecting the bottom flange and the web, and just below the coped portion of the connecting plate. This research should nclude both straight and horizontally curved girder systems with both open and closed framing. /Author/

  • Corporate Authors:

    Illinois Department of Transportation

    Bureau of Materials and Physical Research
    126 East Ash Street
    Springfield, IL  USA  62704-4766
  • Authors:
    • Jacobsen, F K
  • Publication Date: 1975-10

Media Info

  • Features: Figures; Tables;
  • Pagination: 37 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00139315
  • Record Type: Publication
  • Report/Paper Numbers: PSR-66
  • Files: TRIS, STATEDOT
  • Created Date: Sep 16 1976 12:00AM