# ANCHORAGE VALUE OF HOOKS AND BENDS

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)

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.

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