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4. A simply supported beam carries a uniformly supported load. It has a span of 7.2 m and an effective depth of 640 mm. The beam is reinforced with 6-22 mm dia bars. Assume that there is no excess steel area required that is As furnished is equal to As required. Use normal weight concrete. The 12 mm dia stirrup of the beam which has a spacing extends of 190 mm to the end of the beam support. Use We = 1.2. The f'c = 28.8 MPa, fy = 439.9 MPa. Width of beam is 420 mm. Use clear covering of 30 mm. Determine the following: (1) the minimum distance from the centerline of the span to the cut off of the first two bars using NSCP provisions, (2) the minimum distance from the centerline of the span to the cut off of the next two bars using NSCP provisions, (3) Determine the required tensile development length using the ld formula. clear cover d width, b 5. A simply supported concrete beam having a width of 380 mm and an effective depth of 550 mm carries a uniformly distributed factored load including its weight wu = 7.5 kN/m and a concentrated load Pu = 400 kN acting 2 m from the left support and the total beam span is 5 m. Use normal weight concrete with f'c = 27.9 MPa, and fy = fyt = 437.5 MPa. Using simplified calculations, determine: (1) the maximum factored shear force at the critical section from C, (2) the first spacing of the 10 mm dia stirrups between A and B, (3) the first spacing of the 10 mm dia stirrups between B and C. stirrups diameter, Ø, Pu d Wu с B b X1 X2