Can someone explain how rebar lapping works ?
I have 3 question to ask.
1) When lapping with 2 different size of rebar, the lap length shall be calculated based on smaller rebar. Why ? and what is the theory behind ?
2) When 2 different grade of rebar lap, the lap length have to design based on higher grade or lower grade ?
3) If X25 lap with H40, lap length have to design based on which bar ?
Need your professional explanation please. Thank you.