Calculate the support reaction force for the uniformly distributed load below, where w=w= 27 N/m and LAB=LAB= 4 m. The downward direction is denoted as positive direction.

The channel shape cross-section and the rectangular cross-section shown in the Figure Q4 are made of materials with elastic-perfectly plastic behaviour. The yield stress of the material used for the channel shape cross-section is oy = 473 MPa, whereas that used for the rectangular cross- section is 0.850y. Compute the thickness of the web, t, of the channel shape section if the two cross sections have identical plastic bending moment about the z-axis. In Figure 4, h= 77 mm, b=46 mm, a=11 mm, H=77 mm, d= 46 mm N b h a + N a | d H

5.a the diagram below represents a lorry tail lift. The load represents the maximum load specification. Calculate the forces and draw the shear force and bending moment diagrams for this loading scenario. 650 N UDL = 190 N/m 4 m The design specification is for 2 point loads of 350 N, one at 1.5m and one at 3m. calculate the forces and draw the shear force and bending moment diagrams.

Consider the steel truss and member cross-section presented in figures below. All the members of the truss have the same cross-section as shown in the figure to the right. They all also have a Young's Modulus of 210 GPa. What can the highest value of force F be before member AC fails by buckling? Force 1AN - 300 mm 40° 4 m $35 mm 7m 300 mm 8 m 35 mm 35 mm 35 mm Please provide your answer in kN.