Steel framing strategies for highly skewed bridges to reduce/eliminate distortion near skewed supports.
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields



Publication Date Range:


Document Data


Document Type:






Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page


Steel framing strategies for highly skewed bridges to reduce/eliminate distortion near skewed supports.

Filetype[PDF-5.79 MB]

Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
  • English

  • Details:

    • Corporate Contributors:
    • Publication/ Report Number:
    • Resource Type:
    • Geographical Coverage:
    • Abstract:
      Different problems in straight skewed steel I-girder bridges are often associated with the methods used for detailing the cross-frames. Use of theoretical terms to describe these detailing methods and absence of complete and simplified design approach has led to disputes between stakeholders, costly repairs, and delays in construction.

      The objectives of this research were introduction of simplified terminologies to describe detailing methods, identification of structural responses affected by the detailing methods and recommendation of methods of analysis to evaluate these responses, development of methods to estimate fit-up forces and practices to reduce them, and finally development of design provisions for the skewed bridges.

      Two terminologies, erected fit and final fit, are introduced to describe the detailing methods in order to be consistent with field practice. The components of the structural responses affected by the detailing method are identified and are referred to as lack-of-fit effects. It has been shown that lack-of-fit effects for the final fit detailing method at steel dead load stage are equal and opposite to the lack-of-fit effect for the erected fit detailing method at total dead load stage. It is recommended to use improved 2D grid analysis to calculate the lack-of-fit effects for the erected fit and final fit detailing methods. The fit-up forces required to attach the cross-frames during the erection can be estimated from improved 2D grid analysis. 3D erection simulation has shown that erecting the cross-frames starting from the middle of a bay and going toward the ends reduces the maximum fit-up force. Finally, recommendations were made on the method of calculating the cambers, and a flow chart was developed for each detailing method to facilitate the selection of the detailing method and carrying out the necessary design checks.

    • Format:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at

    Version 3.26