If depth of slab is 10 cm, width of web 30 cm, depth of web 50 cm, centre to centre distance of beams 3 m, effective span of beams 6 m, the effective flange width of the beam, is
A)200 cm
B)300 cm
C)150 cm
D)100 cm

Question

Quizplus · Accepted Answer

The effective flange width of the beam can be calculated using the formula: $b_f = \frac{L}{4} + bw + \frac{6d}{2}$, where $L$ is the center-to-center distance between beams (3m or 300cm), $bw$ is the width of the web (30cm), and $d$ is the depth of the slab (10cm). Substituting the given values, we get $b_f = \frac{300}{4} + 30 + \frac{6*10}{2} = 75 + 30 + 30 = 135cm$. However, since the effective span of the beams is 6m or 600cm, the effective flange width cannot exceed $b_{f,max} = \frac{L}{4} = \frac{600}{4} = 150cm$. Therefore, the correct answer is 150cm, considering the limitations imposed by the effective span.

If Depth of Slab Is 10 Cm, Width of Web