In the case of bars in tension, a standard hook has an anchorage value equivalent to a straight length of 16 times the diameter of the bar, and a 90-degree bend has an anchorage value of 8 times the diameter of the bar. The anchorage values of standard hooks and bends for different bar diameters are given below (as per SP 16: 1980)
| Type of steel | The minimum value of K |
| Mild steel | 2 |
| Cold worked steel | 4 |
NOTE 1 -The table is applicable to all grades of reinforcement bars.
NOTE 2 – Hooks and bends shall conform to the details given above
FAQ
What is the anchorage value of a 45-degree hook?
Actually, there is no such bend having a 45-degree hook. It is a 135-degree hook which is the most popular Standard Hook. For tension bar, anchorage length of 135-degree hooks, bars is 16-time dia. of the bar. (for all grades of the bar)
What is the anchorage value of 90 degrees bent?
For tension bar, anchorage length of 90-degree hooks, bars is 8-time dia. of the bar. (for all grades of the bar)
What is the anchorage value of 16 mm dia bar?
anchorage value of hook (180-degree bend ) of the 16mm dia bar is 256 mm anchorage value of 90-degree bend of the 16mm dia bar is 256 mm.
What is anchorage length?
The length required to hold the bars in position during tension and compression.
What does Anchorage bar mean?
Anchorage bars are not any kind of bars. It is the length of bar required to hold, during the service time of the structure.
What is the anchorage value of the standard of a reinforcement bar of diameter D?
The values of bars are given in the above-mentioned tables.
What is the anchorage value of u type hook?
U-type hooks mean, it is a bends bar having 180-degree bends. Anchorage value of u type hook is 16D.