Q18 If the forces in the elements due to the displacements of a structure are shown in the following table, calculate the total moments of the elements. [Note: This is the same structure which was shown in Q15, Q16, and Q17.] 30 kN/m 20 kN/m 25 kN/m 4m 6m Sm Element M1 (KNm) M2 (kNm) 1 26.67 32.83 30.50 0.37 3. 37.55 -52.08

For a certain arrangement of two bars carrying only axial forces, the equilibrium and compatibility equations are: Equilibrium: t1+3t2=2kN Compatibility: 2e1 + e2 = 0.1mm There is also a temperature rise of 50oC. Show calculations for the tension in the two bars, where EA=90x103kN and α=12 x10-6 *C for both bars and L1=500mm and L2=400mm.