Question { HCC, 27066 }

1) what is the difference between development length &
overlap length ? 2) why extras are provided at top and
bootom in a beam of slab? 3) why stirrups are provided at
0.3l at supports and 0.4l at center? 4) is column a
compression memeber if yes how & beam is which type of
memeber?

Answer

development length
1. The minimum length of straight reinforcing bar or
reinforcing rod which is required to anchor it in concrete.
2. The length of embedded reinforcement required to develop
the design strength at a critical section.