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Mid-America Transportation Center

NDOR Development of Design Tools for Steel Bridge Systems, Simple for Dead Loads and Continuous for Superimposed Dead and Live Loads


Nebraska Department of Roads

University of Nebraska-Lincoln


  • Principal Investigator: Atorod Azizinamini ( 402-472-5106)
  • Project Status
    In Progress
  • Start Date: 7/1/2004
  • End Date: 6/30/2007
  • Sponsors & Partners
  • Nebraska Department of Roads
  • About this Project
    Research Objective
    The objective of this project is to design tools to assist the bridge engineers in designing the new system based on AASHTO code.
    Potential Benefits
    The new steel bridge system has several advantages that are attracting the attention of fabricators and contractors. The system does not have any bolted splice. It is light. Girders are placed over the support in a very short time period. Contractors are suggesting that the system has an excellent application for railroad bridges, as interruption to traffic is minimal.
    This project aims to develop necessary design tools to design the new system based on the new American Association of State Highway and Transportation Officials (AASHTO) code and develop guidelines for addressing global stability during construction, an issue on which AASHTO codes does not provide any guidelines The design of the bridge requires special design tools that are not commercially available. As a result, the bridge division of the Nebraska Department of Roads has decided to develop needed tools to assist the bridge engineers to design the new system in a timely manner.
    Total Project Cost
    $ 226,305