Difference between Lap length, development length and anchorage length.

There are 3 types of extra steel length is provided in concrete:-
(1):- lap length
(2):- Development length
(3):- Anchorage length

Lap length:- It is extra length of steel bar provide to safely transfer stress from one bar of steel to other.

Development length:- It is extrs length of steel bar provide to safely transfer stress from steel to concreat.

Anchorage length:- This is provided for safely transfer strees from steel to concreat where Development length can not be provided. Eg:- we provide bend at the end of concreat.