For deformed bars or deformed wires, ld is calculated automatically.
lb = development length in tension of deformed bar, deformed wire, plain and deformed welded wire reinforcement, or pretensioned strand,
s = center-to-center spacing of items, such as longitudinal reinforcement, transverse reinforcement
Development of reinforcement
Determined tension or compression in reinforcement at each section of a member should be adopted by the fact embedment length; hook, head deformed bar, mechanical device, or a combination according to TSC 18.104.22.168 and TSC 22.214.171.124.
The conditions given in (TSC, Figure 7.2) are applied while preparing the details of the reinforcements that cannot be interlocked in the upper storey column due to the change in the column cross section from floor to floor. According to TSC 126.96.36.199 develop bar conditions for columns given the figure below.
According to TSC 188.8.131.52 develop bar conditions for columns given the figure below.