For Problems 5.50 to 5.52, compute the design moment strengths of the beams shown iff, -21 MPa. Check the maximum 420 MPa and permissible A, in each case to ensure ductile failure. E, 200,000 MPa Problem 5.52 Problem 5.52 200 • 2029 5832 #29 645 #32 819 130mm 100m . 100 For Problems 5.50 to 5.52, compute the design moment strengths of the beams shown iff, = 420 MPa and f=21 MPa. Check the maximum permissible A, in each case to ensure ductile failure. E, = 200,000 MPa. Problem 5.52 200 mm 229 5 #32 500 mm 70 mm 330 mm 100 mm • 100 mm