Yield Limit State Lakshmi Subramanian Primary Author Donald W. White Primary Author mixed material bibliography ASCE 2017 en English

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Journal of Bridge Engineering, Vol. 22, Issue 1, 2 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 the theoretical bend-buckling of a slender web. This is a deficiency that can have significant impact, especially in regions of continuous-span girders subjected to negative moment. This paper evaluates the contribution of single-web longitudinal stiffeners to the yield limit state flexural resistance of slender-web steel I-girders, often referred to as the plateau resistance for the lateral torsional and flange local buckling limit states. Based on test simulation studies, the authors recommend a cross-section model that captures the response of the postbuckled web for both homogeneous and hybrid girders subjected to uniform moment. The proposed model offers up to 60% improvement relative to the current AASHTO specifications. Bridge Engingeering NONE 19435592 Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001) 21994 2018-07-12 10:56:17 2018-07-12 10:56:17 machine generated