Civil Engineering - Estimating and Costing - Discussion

Discussion Forum : Estimating and Costing - Section 1 (Q.No. 45)
45.
If tensile stress of a steel rod of diameter D is 1400 kg/cm2 and bond stress is 6 kg/cm2, the required bond length of the rod is
30 D
40 D
50 D
53 D
59 D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 2 of 2.

Deepanshu said:   1 decade ago
Bond length or development length = d*tensilestress/4*bond stress.

D*1400/4*6 = 58.33.

Pawan said:   1 decade ago
Ld = fi sigma st / 4 tou bd.

Salem basha said:   10 years ago
Ld = 0.87Fy/4 τ bd.

This will gives answer as 50.75.

So answer will be 50 times the diameter.


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