P1 = 30 kN P2 = 20 kN WI = 12.5 kN/m 7.5 kN/m Wi = 10.5 kN/m 4.5 kN/m WD WD = D A 3 m 2.5 m 8 m 10 m
A continuous concrete beam shown in the figure has a width of b= 300 mm, an effective depth of d= 560 mm, and an overall depth of h= 600 mm. Concrete compressive strength fIc=21.0 MPa and steel yield strength fy= 275 MPa. The beam carries a superimposed dead load at span AB of 7.5 kN/m and at span BC, CD of 4.5 kN/m. A live load at span AB of 12.5 kN /m and at span BC, CD of 10.5 kN/m.
Determine the number, N, of 20 mm ∅ deformed steel bars at the following sections
1) support A
2) Support B
3) Support C
4) between AB
5) between BC
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Given:
b= 300 mm
d= 560 mm
h= 600 mm
fc=21.0 MPa
fy= 275 MPa
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