GATE Civil Engineering (CE) 2019 Shift 1 Solved Paper

Question : 37 of 65

Marks: +1, -0

Tie bars of

12 {mm}

diameter are to be provided in a concrete pavement slab. The working tensile stress of the tie bars is

230 {MPa}

, the average bond strength between a tie bar and concrete is

2 {MPa}

, and the joint gap between the slab is

10 {mm}

. Ignoring the loss of bond and the tolerance factor, the design length of the tie bars (in

{mm}

, round off to the nearest integer) is ________

Solution:

Given:

{d}=12 {mm}

σ_{ {st}}=230 {MPa}=230 {N} {/} {mm}^{2}

{S}_{ {b}}=2 {MPa}=2 {N} {/} {mm}^{2}

{t}=10 {mm}

Length of tie bar

\;\; =t+\;{d σ_{t}}/{2 × S_{b}}

\;\; =10+690

\;\; =700 {mm}

Go to Question:

Prev Question

Next Question