For the purpose and scope of this manual, we will only discuss one type of splicing known as lap splicing. Lap splicing is typically overlapping reinforcing steel over a certain length. The length of the splice should be calculated according to the local building codes or by a local engineer and specified on the project plans.
There are two main types of lap splices:
Contact Lap Splice:
The lapped reinforcing bars MUST be in contact with each other and secured together.
Non-Contact Lap Splice:
The reinforcing bars are allowed to be spaced at a distance of one-fifth (1/5) of the lapped length to a maximum of 150 mm or 6 inches.