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For bars in tension, a standard hook has an anchorage value equivalent to a straight length of
- a)8ϕ
- b)12ϕ
- c)16ϕ
- d)24ϕ
Correct answer is option 'C'. Can you explain this answer?
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For bars in tension, a standard hook has an anchorage value equivalent...
As per IS 456: 2000,
A standard hook has an anchorage value equivalent to a straight length of 16ϕ.
The anchorage value of standard U-type hook shall be 16 times the diameter of the bar.
The anchorage value of standard bend shall be considered as 4 times the diameter of the bar for each 45o bend subject to a maximum value of 16 times the diameter of the bar.
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For bars in tension, a standard hook has an anchorage value equivalent...
Anchorage Value of a Standard Hook for Bars in Tension
Introduction:
When reinforcement bars are used in concrete structures, they need to be anchored properly so that they can resist the tensile forces that act on them. One of the ways to do this is by using standard hooks, which have an anchorage value that is equivalent to a straight length of reinforcement bar.
Anchorage Value of a Standard Hook:
The anchorage value of a standard hook is the length of reinforcement bar that is required to develop the same tensile strength as that of the hook. This value is determined by tests conducted on reinforcement bars and hooks, and has been standardized for different sizes of bars.
The anchorage value of a standard hook for bars in tension is given by the formula:
Anchorage Value = 4d, where d is the diameter of the reinforcement bar.
Therefore, for a bar with a diameter of 4mm, the anchorage value of a standard hook would be:
Anchorage Value = 4 x 4mm = 16mm
Conclusion:
In conclusion, the anchorage value of a standard hook for bars in tension is equivalent to a straight length of reinforcement bar that is 4 times the diameter of the bar. Therefore, for a bar with a diameter of 4mm, the anchorage value of a standard hook would be 16mm.
Introduction:
When reinforcement bars are used in concrete structures, they need to be anchored properly so that they can resist the tensile forces that act on them. One of the ways to do this is by using standard hooks, which have an anchorage value that is equivalent to a straight length of reinforcement bar.
Anchorage Value of a Standard Hook:
The anchorage value of a standard hook is the length of reinforcement bar that is required to develop the same tensile strength as that of the hook. This value is determined by tests conducted on reinforcement bars and hooks, and has been standardized for different sizes of bars.
The anchorage value of a standard hook for bars in tension is given by the formula:
Anchorage Value = 4d, where d is the diameter of the reinforcement bar.
Therefore, for a bar with a diameter of 4mm, the anchorage value of a standard hook would be:
Anchorage Value = 4 x 4mm = 16mm
Conclusion:
In conclusion, the anchorage value of a standard hook for bars in tension is equivalent to a straight length of reinforcement bar that is 4 times the diameter of the bar. Therefore, for a bar with a diameter of 4mm, the anchorage value of a standard hook would be 16mm.
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For bars in tension, a standard hook has an anchorage value equivalent to a straight length ofa)8ϕb)12ϕc)16ϕd)24ϕCorrect answer is option 'C'. Can you explain this answer?
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