Develop Design Guidelines for Integral Abutment Bridges

There is a growing trend to use highly skewed bridges. There are also many advantages to making all bridges integral, even highly skewed bridges. Many agencies have set limits on maximum skew on integral bridges to avoid translation and wingwall damage. Many designers in Utah have incorporated "finwalls" into the design. These finwalls can minimize translation and are sized for full seismic loads and can handle significant loads. It appears that the problems seen are "restraint problems" with the system not moving as expected and forcing large loads back into the superstructure. The resultant forces in skewed or skewed curved bridge are offset and appear to be forming a force couple which is putting moment into the superstructure system. This moment is damaging the girders and the girder abutment connection. This research is unique in that it will focus on the restraint effects of the abutments and the impacts of the restraint on the superstructure and superstructure abutment connection. The main object of this research is to investigate the cause of cracking in integral abutment bridges in the State of Utah. Obtaining this objective will involve an extensive literature review of previous research, documenting the experiences encountered with integral abutment bridges. Once the cause of cracking is identified, design guides will be developed to eliminate the problem in future designs in addition to development of repair strategies to fix structures exhibiting these types of problems.

Language

  • English

Project

  • Status: Active
  • Funding: $50000.00
  • Contract Numbers:

    129069

  • Sponsor Organizations:

    Utah Department of Transportation

    4501 South 2700 West
    Project Development
    Salt Lake City, UT  United States  84114-8380
  • Project Managers:

    Scovil, Russ

  • Performing Organizations:

    Mountain-Plains Consortium

    North Dakota State University
    P.O. Box 6050, Department 2880
    Fargo, ND  United States  58108-6050

    Utah State University, Logan

    Structural Materials Research and Testing Lab
    Logan, UT  United States  84332-4110
  • Principal Investigators:

    Halling, Marvin

    Barricklow, Paul

    Barr, Paul

  • Start Date: 20110915
  • Expected Completion Date: 0
  • Actual Completion Date: 20120630
  • Source Data: RiP Project 33628

Subject/Index Terms

Filing Info

  • Accession Number: 01474755
  • Record Type: Research project
  • Source Agency: Utah Department of Transportation
  • Contract Numbers: 129069
  • Files: UTC, RiP, STATEDOT
  • Created Date: Mar 5 2013 1:01AM