4. A 6" x 14" beam supports the loads shown below. Determine the maximum shear stress. 1,000 lbs 1,000 lbs 3' w=400 lbs/ft 3' B 16'

10 mm | | | | 10 mm 50 mm ارت - 50 mm 10 mm 20 kN B 150 mm 910 mm 10 kN D ------- 150 mm Two vertical forces are applied to a am of the cross section sh vn. Determine the maximum tensile and compressive stresses in portion BC of the beam.Show your complete solution and box your answer.

AW18 x 40 standard steel shape is used to support the loads shown on the beam. Assume P = 29 kips, w = 2.4 kips/ft, LAB = 5.6 ft, LBc = 5.6 ft, and LCD = 15.6 ft. Determine the magnitude of the maximum bending stress in the beam. P A B D LAB LBC LCD

a) The short steel post as shown in Figure 4 is a 152 x 152 UC37 with three compressive loads applied to the top. There is a central load of 200KN and eccentric loads of 'W kN and 100kN. The maximum allowable stress on the face AB is 185 N/mm?. (Area=D47.1cm2,Zxx=273cm) What is the value of the load 'W in kN? WkN A. 152 x 152 UC37 100mm -200KN 50mm 100KN Not to scale Figure 4