A L-beam reinforced concrete section, see Figure $A 1$ has a total depth $D = 800 mm$ , effective flange width $b_{e f} = 800 mm$ , flange depth $t_{f} =$ $200 mm$ and web width $b_{w} = 400 mm$ and is reinforced with 8 N 32 steel bars at the bottom. The concrete characteristic compressive strength is $f_{c}^{?} = 32 MPa$ and the yield strength of steel reinforcement is $f_{sy} = 500$ $MPa$ . Given that $E_{s} = 200, 000 MPa$ . Determine the ultimate sagging moment capacity of this section using the limiting concrete strain criterion of 0.003 .

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A L-beam reinforced concrete section, see Figure

A 1

has a total depth

D = 800 mm

, effective flange width

b_{e f} = 800 mm

, flange depth

t_{f} =

200 mm

and web width

b_{w} = 400 mm

and is reinforced with 8 N 32 steel bars at the bottom. The concrete characteristic compressive strength is

f_{c}^{?} = 32 MPa

and the yield strength of steel reinforcement is

f_{sy} = 500

MPa

. Given that

E_{s} = 200, 000 MPa

. Determine the ultimate sagging moment capacity of this section using the limiting concrete strain criterion of 0.003 .

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