A reinforced concrete beam 30 mm x 300 mm with tensile reinforcement of 1 - 28mmØ is simply supported over a span of 5.5 m. Using steel covering of 75 mm, concrete strength is 20.7 MPa and yield strength of re-bars is 280 MPa. a. Determine the cracking moment of inertia.

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Chapter2: Loads On Structures
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A reinforced concrete beam 30 mm x 300 mm with tensile reinforcement of 1 - 28mmØ is simply supported over a span of 5.5 m. Using steel covering of 75 mm, concrete strength is 20.7 MPa and yield strength of re-bars is 280 MPa.

a. Determine the cracking moment of inertia.

b. Determine the moment capacity of the beam.

c. Describe the mode of design.

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