Question
Download Solution PDFFor deformed bars conforming to IS 1786, the design bond stress in limit state method shall be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The value of bond stress is increased by 60% when deformed bars are used as having better interlocking bond formation in concrete.
The value of bond stress is increased by 25% when the bar is in compression.
Important Points
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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