CE Calculators > Instructions for Moment Distribution Calculator

Instructions for using Moment Distribution Calculator

(i). Sign convention

(a)The loads acting upward are considered as positive while the downward loads are taken as negative. Sagging bending moment is taken as positive and hogging as negative. The clock-wise rotation and moments are negative and anticlock-wise as positive.

(b) In case of Fixed-end moments, the anticlock-wise moment at left-end support is taken as negative; it will cause hogging moments in the beam, whereas at the right-end support the clock-wise moment is taken as positive which causes hogging.

(ii) All the distances should be entered in meter and measured from the reference point as shown in the figure.

(iii) Point Load is to be entered in kN and intensity of uniform load or varying load in kN/m

(iv) The values of Modulus of elasticity for both the spans should be in the same unit. Also the Moment of inertia of both the spans should be entered in same units. Alternately these values can be entered proportionately e.g, if E2=2E1.you can enter E1=1 and E2=2.

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