A reinforced concrete beam section is "b" wide and "h" deep. It is to be reinforced with the given diameter and number of pieces below, stirrups is 10 mmØ with clear concrete covering of 40 mm. Consider f'c = 32 MPa and fy = 415 MPa. 1) If the beam is reinforced with 4 - 25mmØ tension steel only, calculate the tension steel strain et. 2) If the beam is reinforced with 6-28mmØ tension steel (in two layers of 3 bars each with 25 mm clear distance between layers), calculate the tension steel strain et. 3) Calculate the flexural strength of the beam in question 2.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A reinforced concrete beam section is "b" wide and "h" deep. It is to be reinforced with the given diameter and number
of pieces below, stirrups is 10 mmØ with clear concrete covering of 40 mm. Consider f'c = 32 MPa and fy = 415 MPa.
1) If the beam is reinforced with 4 - 25mmØ tension steel only, calculate the tension steel strain et.
2) If the beam is reinforced with 6-28mmØ tension steel (in two layers of 3 bars each with 25 mm clear distance between layers),
calculate the tension steel strain et.
3) Calculate the flexural strength of the beam in question 2.
4) Determine the total unfactored dead load and live load using the result in problem 3 that the beam can carry if dead load is
30% of the total live load. Use "L" as total beam length. Assume that the beam is simply supported.
5) Determine the superimpose dead load that the beam can carry from the resut in problem 4 if concrete weighs 23.6kN/m3.
b
380mm
h
520mm
L
5.70m
Transcribed Image Text:A reinforced concrete beam section is "b" wide and "h" deep. It is to be reinforced with the given diameter and number of pieces below, stirrups is 10 mmØ with clear concrete covering of 40 mm. Consider f'c = 32 MPa and fy = 415 MPa. 1) If the beam is reinforced with 4 - 25mmØ tension steel only, calculate the tension steel strain et. 2) If the beam is reinforced with 6-28mmØ tension steel (in two layers of 3 bars each with 25 mm clear distance between layers), calculate the tension steel strain et. 3) Calculate the flexural strength of the beam in question 2. 4) Determine the total unfactored dead load and live load using the result in problem 3 that the beam can carry if dead load is 30% of the total live load. Use "L" as total beam length. Assume that the beam is simply supported. 5) Determine the superimpose dead load that the beam can carry from the resut in problem 4 if concrete weighs 23.6kN/m3. b 380mm h 520mm L 5.70m
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