Q4. The structure shown in Figure 4 is a three-pin frame. a. Determine the reactions at the supports A and B b. Sketch the bending moment diagram by calculating the moments at the seven sections A, B,C, D, E, F and G(10 marks) c. Establish the location of the section that has the maximum bending moment and write down its value on the diagram(5 marks)
Fig: 1
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Fig: 4
Fig: 5