a simply supported beam is reinforced with 4-diameter28mm at the bottom and 2-diameter 20mm at the top of the beam. concrete covering to centroid of reinforcement is 70mm at the top and 64mm at the bottom of the beam. the beam has a gross depth of 450mm and gross width of 300mm. f'c=28MPa, fy=415MPa. assume bars laid out in single layer. calculate the ff if the limiting tensile steel strain is 0.004 for a ductile failure: 1. depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number in mm 2. design strength of the beam section to the nearest whole number in kN.m 3. maximum service uniform live load over the entire span in addition to a DL=20kN/m (including the weight of the beam) if it has a span of 6m in kN.m
a simply supported beam is reinforced with 4-diameter28mm at the bottom and 2-diameter 20mm at the top of the beam. concrete covering to centroid of reinforcement is 70mm at the top and 64mm at the bottom of the beam. the beam has a gross depth of 450mm and gross width of 300mm. f'c=28MPa, fy=415MPa. assume bars laid out in single layer. calculate the ff if the limiting tensile steel strain is 0.004 for a ductile failure:
1. depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number in mm
2. design strength of the beam section to the nearest whole number in kN.m
3. maximum service uniform live load over the entire span in addition to a DL=20kN/m (including the weight of the beam) if it has a span of 6m in kN.m
Step by step
Solved in 3 steps with 3 images
