For deformed bars or deformed wires, ld is calculated automatically.


Symbols

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 7.3.3.2 and TSC 7.4.3.1.

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 7.3.3.2 develop bar conditions for columns given the figure below.

According to TSC 7.4.3.1 develop bar conditions for columns given the figure below.