Problem 4. A reinforced concrete beam having a simple span of 8m is reinforced for tension with 25mm dia bars (As = 1963 mm2). The beam has a width of 350mm and an effective depth of 690 mm. Use f'c = 20.7 MPa, fy = 414 MPa. a. Determine the location of the neutral axis measured from the top outermost compression fiber of the section. Ans.: Blank 1 mm b. Determine the ultimate moment capacity of the beam. Ans.: Blank 1 kN.m. c. Determine the safe uniform live load (in kN/m) that the beam could carry. Assuming weight of concrete is 24 kN/cu.m. Ans.: Blank 1 kN/m
Problem 4. A reinforced concrete beam having a simple span of 8m is reinforced for tension with 25mm dia bars (As = 1963 mm2). The beam has a width of 350mm and an effective depth of 690 mm. Use f'c = 20.7 MPa, fy = 414 MPa. a. Determine the location of the neutral axis measured from the top outermost compression fiber of the section. Ans.: Blank 1 mm b. Determine the ultimate moment capacity of the beam. Ans.: Blank 1 kN.m. c. Determine the safe uniform live load (in kN/m) that the beam could carry. Assuming weight of concrete is 24 kN/cu.m. Ans.: Blank 1 kN/m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Problem 4.
A reinforced concrete beam having a simple span of 8m is reinforced for tension with 25mm dia bars (As = 1963 mm2). The beam has a width of 350mm and an effective depth of 690 mm. Use f'c = 20.7 MPa, fy = 414 MPa.
a. Determine the location of the neutral axis measured from the top outermost compression fiber of the section.
Ans.: Blank 1 mm
b. Determine the ultimate moment capacity of the beam.
Ans.: Blank 1 kN.m.
c. Determine the safe uniform live load (in kN/m) that the beam could carry. Assuming weight of concrete is 24 kN/cu.m.
Ans.: Blank 1 kN/m
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