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000913
2024-01-16

Equivalent Member Length

Equivalent member length
lef = La1 · 1 - a2 · azL · E0.05 · IZG0.05 · IT
lef Equivalent member length
L Beam length, spacing between lateral supports
a1,a2 Lateral buckling factors
az Distance of load application from shear center
E0.05 5 % quantile of modulus of elasticity
G0.05 5 % quantile of shear modulus
Iz Second moment of area about weak axis
IT Torsional constant


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