d concrete beam section is 375 mm wide and 500 mm deep. The beam carries service live load of 105 kN-m and a service dead load of 210 kN-m. Use f’c = 21 MPa and fy = 415 MPa. If the compression steel is found necessary, the effective concrete cover to be used for the said bars will be 65 mm. At ultimate condition, U = 1.2 D + 1.6 L. Use a strength reduction factor of 0.9. a) Determine the required nominal design moment for the section in kN-m. b) Determine the number of pices of 28 mm diameter tension reinforcements required for the section. c) Determine the number of pieces of 28 mm diameter compression reinforcements required for the beam considering the effect of the concrete displaced by the bars.
A reinforced concrete beam section is 375 mm wide and 500 mm deep. The beam carries service live load of 105 kN-m and a service dead load of 210 kN-m. Use f’c = 21 MPa and fy = 415 MPa. If the compression steel is found necessary, the effective concrete cover to be used for the said bars will be 65 mm. At ultimate condition, U = 1.2 D + 1.6 L. Use a strength reduction factor of 0.9.
a) Determine the required nominal design moment for the section in kN-m.
b) Determine the number of pices of 28 mm diameter tension reinforcements required for the section.
c) Determine the number of pieces of 28 mm diameter compression reinforcements required for the beam considering the effect of the concrete displaced by the bars.
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