What symbol is used to indicate the overlapping length of steel bars?

What symbol is used to indicate the overlapping length of steel bars?

Answer: The lap length of steel bar binding is indicated by the following symbols.

The lap length of longitudinal tensile steel bar binding is represented by Ll and LlE symbols.

Ll symbol indicates the lap length of non-seismic longitudinal tensile reinforcement;

LlE symbol indicates the binding lap length of longitudinal tensile reinforcement in earthquake resistance.

Symbol: earthquake formula: LLE = Zetasout; Non-seismic formula: LL = zetasute.

Answer 2: The welding lap length of steel bars is indicated by the following symbols.

For example, according to the type of steel bar? (originally called Grade I and II) Double-sided welding, Single-sided welding, Double-sided welding and Single-sided welding are divided into 4d and 5d; 8d（ 10d）。