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Using the force method, calculate the bending moment at D for this one-fold statically indeterminate frame. Ignore the axial and shear deformations and consider EI constant for the whole frame. Please use the gradual solution below and release M₁ as the redundant moment. Take a = 19 kN and L = 1.2 m. 3 m b) M c) M₁ = D E F B C G M A |—21 + m a kN m kN m -2 m 2 m Part 1) Draw the bending moment diagram of the primary structure and calculate the bending moment at A, D and H. a) M¹₁ = 0 kN m Your last answer was interpreted as follows: 0 H
Part 2) Draw the bending moment diagram of the redundant structure when applying a counter-clockwise unit moment at I. Calculate the bending moment at A, D and H. a) m₁ = kN m Your last answer was interpreted as follows: 1 b) mp = c) mu =|0 kN m kN m Your last answer was interpreted as follows: 0 Part 3) Calculate the real bending moment at D MD = kN m Check