Question

A precast T beam is to be used as a bridge over a small roadway . Concrete dimensions are b = 1500 mm , bw = 300 mm , h = 150 mm , and h = 750 mm . The effective depth d = 650 mm . Concrete and steel strengths are f ' c = 40 MPa and fy = 420 MPa , respectively . Determine the design moment capacity of the girder . If the beam is used on a 10 m simple span , and if in addition to its own weight it must support railings , curbs , and suspended loads totaling 4 kN / m , what uniform service live load limit should be posted ?​

Answer 1

Answer:

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Explanation:

A precast T beam is to be used as a bridge over a small roadway .

Concrete dimensions are b = 1500 mm ,

bw = 300 mm , h = 150 mm , and h = 750 mm .

The effective depth d = 650 mm .

Concrete and steel strengths are f ' c = 40 MPa and fy = 420 MPa , respectively .

Determine the design moment capacity of the girder .

If the beam is used on a 10 m simple span , and if in addition to its own weight it must support railings , curbs , and suspended loads totaling 4 kN / m , what uniform service live load limit should be posted ?

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