Re-analyse the beam of Problem 9.8 with the load on the spans AB and CD removed, while keeping span BC loaded with a uniform load of 12 kN/m. Use moment distribution for the analysis. Comment on the...

Re-analyse the beam of Problem 9.8 with the load on the spans AB and CD removed, while keeping span BC loaded with a uniform load of 12 kN/m. Use moment distribution for the analysis. Comment on the effect on the magnitude and position of the maximum positive and negative moments in the beam.

Problem 9.8

For the beam shown, calculate the reactions at supports A, B, C and D using moment distribution, and draw the shear force and bending moment diagrams. Assume EI is constant throughout.