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By what value the bond stress of deformed bars is increased in tension?

By what value the bond stress of deformed bars is increased in tension? Correct Answer 60%

Explanation:

As per IS 456:2000, clause B 2.1.2, (conforming to IS 1786),

The allowable bond stress in deformed bars may be increased by 60% as compared to the allowable bond stress in plain bars.

Important Points The value of bond stress is increased by 25% when the bar is in compression.

 Additional Information

The bond stress for different grades of concrete as per different established provisions are as follows:

Grade

M15

M20

M25

M30

M35

M40

WSM

0.6

0.8

0.9

1.0

1.1

1.2

LSM

 

1.2

1.4

1.5

1.7

1.9


The bond stresses value tabulated above is for plain bar in tension.

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