Embedment of rebar in prestressed concrete pile butts
Embedment of rebar in prestressed concrete pile butts
(OP)
Does anybody know of some literature to design/determine the embedment length of mild steel rebar in prestressed concrete piles to transfer uplift loads?





RE: Embedment of rebar in prestressed concrete pile butts
In general, you'll find that the development length, Ld should not be less than 12", and can be as much as 71*Db or more, where Db is the bar diameter. For example, in 6000 psi concrete a 60ksi rebar will require an ultimate development length of 58Db for #7 bars or larger. The code commentary details the various reasons for different bond lengths.
http://www.spiraleng.com