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Calculate Lateral-Torsional Buckling Modification Factor Cb:   Calculation: Designer/Checker:     Input:     AISC F1(3) For singly symmetric members in single curvature and all doubly symmetric members, calculate Cb, the lateral-torsional buckling modification factor for nonuniform moment diagrams when both ends of the segment are braced.       Absolute value of maximum moment in the unbraced segment (Mmax - kip-ft or kN-m) Absolute value of moment at quarter point of the unbraced segment (MA - k-ft or kN-m) Absolute value of moment at centerline of the unbraced segment (MB - k-ft or kN-m) Absolute value of moment at three-quarter point of the unbraced segment (MC - k-ft or kN-m)               Output:   Login to enable the Formulas! Not a Member? Join Now!     Lateral-torsional buckling modification factor, Cb =           Start Using The Calculations >>> Become A Member Now!

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