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# (Solved): QUESTION 5: REINFORCED CONCRETE A reinforced concrete beam with a length of 4 m is simply supported ...

QUESTION 5: REINFORCED CONCRETE A reinforced concrete beam with a length of 4 m is simply supported at its ends and carries a uniformly distributed load of

30k(N)/(m)

over the full length as well as a concentrated load in the middle of the beam. The beam is rectangular in shape and the area of the steel reinforcing is

2,0609\times 10-3m2

. The effective depth of the reinforcing is 600 mm from the top of the beam. The limit for the stress in the concrete is 5 MPa and for the steel is 115 MPa . Assume the modular ratio to be 15 . Calculate the following: 5.1 The position of the neutral axis from the top 5.2 The moment of resistance of the beam (2) 5.3 The magnitude of the concentrated load 5.4 The minimum width of the beam (3) 5.5 The actual moment of resistance of the concrete 5.6 The actual moment of resistance of the steel (2) [15]

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