![]() The stirrups should be mounted closely to the lapping zone.Lapping should not be done at the midpoint of the beam, but either at the intersection of the column and the beam, or L/4 length from the casting face of the column.Generally, 24d is used for the compression zone and 45d for the tensile zone in a beam.The lap’s purpose is to ensure that axial force is transferred efficiently from the terminating bar to the new attached bar in the same line of action in the junction.Īlso Read: What Is Plum Concrete | Purpose of Plum Concrete | How to Prepare Plum Concrete | Advantages &Disdvantages of Plum Concrete Lap Length in Beam.Lapping is the act of overlapping the reinforcing bars side by side to achieve the desired design duration. Lap length can also be given where the width of the reinforcement bar may be changed along its length, such as when reinforcing columns.In these other terms, the lap length is the length of overlap between the two reinforcing bars. The lap length is thus given to facilitate such side-by-side lapping of the reinforcement bars. ![]() Throughout this scenario, the required design length is obtained by overlapping two bars. Once the reinforcement bars are mounted, the length of a single reinforcement bar will not be adequate.Lap length is specified as the length given to enable the overlapping of two reinforcement bars, enabling secure and efficient load transfer through one bar to another.Lapping Zone of Columns as Per Is 13920: 1983.What Are the General Rules for Lap Length?.What Will Happen If We Don’t Provide Lap Length?.
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