(Solved): 4. (a) A steel column (356x406 UC990) is subjected to four compressive point loads (100kN , 80KN, ...

4. (a) A steel column (356x406 UC990) is subjected to four compressive point loads (100kN , 80KN, 80kN and 50kN) which act parallel to its centroidal axis as shown in figure Q4(a). Calculate the stress in the corners marked A, B, C and D. [12 marks] To access Steel for life blue book use the link below: https://www.steelforlifebluebook.co.uk/ 50 KN A 100 SO KN Y 80KN 50 C 100 100KN Z Figure Q4(a) (all dimensions in mm) (b) For the floor plan shown in Figure Q4(b), two one-way spanning slabs are supported on three timber beams AB, CD, and EF. Both slabs are assumed to be carrying a uniformly distributed load (including their self-weight) of 1.OkN/m2. Calcuate the deflection @SLS at the mid span of beam CD (include the self- weight of the beam). [8 marks] 1 kN/m2 D E=11kN/mm² Density =350kg/m BEAM CD: 63mm(width)x250mm(depth) C24 sm 1 kN/m E 4 m Figure Q4(b)