Abstract: The 2004 AASHTO and 2005 AISC provisions for flexural design of steel I-section members have been revised in their entirety relative to previous specifications to simplify their logic, organization, and application, ...

Abstract: Rapidly developing desktop computing capabilities, which include high resolution graphics and interactive graphical user interfaces, are leading to a new generation of engineering software. One of the challenges in engineering ...

Abstract: The noncompact web-slenderness limit in current design specifications is based on an assumed value of the plate buckling coefficient for a web subjected to flexure that is between the values for fixed and simply-supported ...

Abstract: The lateral torsional buckling (LTB) equations in some current standards are based on unified equations that are a fit to a large body of experimental test data. However, these curves tend to overestimate the capacities ...

Abstract: The I-section member lateral torsional buckling (LTB) resistance equations of the unified provisions underlying the current AISC and AASHTO specifications are a fit to a large body of experimental test data. It has been ...

Abstract: The current AASHTO specification requirements for the web bend-buckling strength-reduction factor (Rb) do not consider the influence of longitudinal stiffeners on the flexural resistance of steel I-girders subsequent to ...

Abstract: Structural analysis methods for steel I-girder bridges can be grouped in three categories: 1D line-girder, 2D-grid, and 3D finite-element analysis. This paper discusses the qualities and limitations of these techniques, ...

Abstract: Traditionally, the design of transverse stiffeners in the AISC and AASHTO specifications has been based on two criteria: a moment of inertia requirement to ensure near-zero lateral deflection of the stiffeners at the web ...