And axial force diagrams for frame abcd are shown above

Frame ABCD analysis Homework Answers Needed

Your Question:

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1.2 Draw the, Shear Force, Bending Moment and Axial Force Diagrams for the frame.

Question 1.1

Step 1: Draw a free body diagram of the frame

Step 3: Substitute the known values into the equations of equilibrium

∑F_x = R_Ax - 50kN = 0

R_Ay = 150kN

R_Cy = 100kN

The shear force at point B is equal to the sum of the vertical forces to the left of the section:

Shear force at B = R_Ay - 40kN/m * 1m = 150kN - 40kN = 110kN

Step 5: Plot the shear force values on a graph

The shear force diagram is shown below:

Step 2: Take moments about point C

The bending moment at point C is equal to the bending moment at point B plus the moment of the distributed load to the right of point B:

Step 1: Calculate the axial force in member AB

The axial force in member AB is equal to the horizontal reaction at support A, which is 50kN.

The axial force in member AD is equal to zero, since it is a roller support.

Step 4: Plot the axial force values on a graph