Unit load method ,unit load method truss ,unit load method equation 2021

 Unit load method:-

It is forced method. It is used for determinate and indeterminate structure.It is a modification of castiglious II theorem. In this method we apply a virtual load/moment of unit magnitude in the direction of deflection/rotation and at that particular point.

Unit load method formula

Where:-

M - Bending moment due to the external applied load

m1 - Bending moment due to the unit load applied at that point of deflection is asked

m2 - Bending point due to unit moment applied at that point of rotation is asked


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