onsider a beam with a cross-section shown below for the question. The x and y axes pass through the centroid of the section. Suppose the section is subjected to a moment about the x axis (Mx) of +1 kNm. Determine the direct stress at point A shown in the cross section drawing above.

The hollow circular beam is fixed to the wall (with a bracket) on the left and has an end-cap on the right. The cross-section is shown. (a) Determine state of stress at point A & draw the stress element (b) Determine state of stress at point B & draw the stress element A 100 k-in Tout 2 in n=1.75 in В. B 40 k-in C Tout 30 k X

Calculate the design moment strength Mu for the following section. Take f'c = 40 MPa. Sketch the strain and stress distribution diagrams for each section and try to work out your solutions using equilibrium conditions. Yield stress for N bars is 500 MPa. 75 700 60 1500 T 4N28 450