GATE Civil Engineering (CE) 2018 Shift 2 Solved Paper

Question : 43 of 65

Marks: +1, -0

A singly-reinforced rectangular concrete beam of width

300 {mm}

and effective depth

400 {mm}

is to be designed using M25 grade concrete and Fe500 grade reinforcing steel. For the beam to be under-reinforced, the maximum number of

16 {mm}

diameter reinforcing bars that can be provided is

Solution:

B=300 {mm}

d=400 {mm}(

effective depth

)

M25 and Fe500

A_{\st, {\lim}} \;\; =0.414(\;{f_{c k}}/{f_{y}}) x_{\u, {\lim}} b

\;\; =0.414(\;{25}/{500}) 0.46 × 400 × 300

\;\; =1142.64 {mm}^{2}

Number of

16 {mm}

For $A_{s t}

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