Formulas: Cover Plates

Formula 1

The end force in a cover plate on a beam whose required strength exceeds the available yield strength, $\phi M_{y}=\phi F_{y} S_{x}$ (LRFD) or $M_{y} / \Omega=F_{y} S_{x} / \Omega$ (ASD), of the combined shape can be determined by an elastic-plastic analysis of the cross section but can conservatively be taken as the full yield strength of the cover plate for LRFD or the full yield strength of the cover plate divided by 1.5 for

Formula 2

The end force in a cover plate on a beam whose required strength exceeds the available yield strength, $\phi M_{y}=\phi F_{y} S_{x}$ (LRFD) or $M_{y} / \Omega=F_{y} S_{x} / \Omega$ (ASD), of the combined shape can be determined by an elastic-plastic analysis of the cross section but can conservatively be taken as the full yield strength of the cover plate for LRFD or the full yield strength of the cover plate divided by 1.5 for ASD.

Found in

• PROPORTIONS OF BEAMS AND GIRDERS