Evaluation of Superstructure Response and Load Distribution in Skewed Steel I-Girder Bridges

Highly-skewed steel I-girder bridges are commonly used, especially in congested areas, despite complications in their analysis, design, and construction. Although design requirements (such as the commonly used line girder analysis) have guidelines associated with skew, more study is needed to establish a comprehensive understanding of load distribution in skewed steel I-girder bridges and to potentially refine the associated analysis and design procedures. 1 hour of CE credit Learning Objectives -Familiarize the audience with current standard practice to design and analyze skewed steel I-girder bridges, including calculation of strong-axis bending and flange lateral bending stress during construction and after in-service. -Understand lateral bending behavior of skewed steel I-girder bridges during deck placement and learn about the limitations of the commonly used line girder analysis. -Understand load distribution on skewed steel I-girder bridges under truck live loads and learn about the accuracy of AASHTO specifications regarding the estimation of girder strong-axis bending and flange lateral bending stress. 1 CE credit Presenter: Siang (Sunny) Zhou Recorded: August 22, 2024