The amount of overlapping between two bars is known as lap length. In case of RCC structure, if the length of reinforcement bars need to be extended, splicing is used to join two reinforcement bars for transferring the forces to the joined bar.

A lap is when two pieces of reinforcing bar (rebar) are overlapped to create a continuous line of rebar. The length of the lap varies depend on concrete strength, the rebar grade, size, and spacing.

Jul 29, 2017 · Lapping of reinforcement is a frequent occurrence in construction due to supply length limitations, construction joints, stage construction, and ease of handling of rebars. Therefore, determining the appropriate lap length is important for ensuring structural integrity and preventing premature failure.

This length overlapped by two bars in concrete sections is called lap length or overlapping length, which are calculated separately for beams, columns and slab sections.

Mar 12, 2025 · Steel bar lapping, also known as lap splicing, is a technique used in reinforced concrete construction to join two steel reinforcement bars (rebar) by overlapping them.

The lap length is the length provided to overlap two rebars in order to safely transfer load from one bar to another bar or provide mechanical couplers.

Properly designed splices of individual reinforcing bars are a key element in transmitting forces through the structure and creating a load path. The architect/engineer provides location, lap length, and related information on structural drawings. A lap splice is the predominant method used for splicing reinforcing bars.

Jul 1, 2020 · Lapping of reinforcement effectively doubles the steel-to-concrete ratio, and the resulting congestion can make the placement and consolidation of concrete difficult.

This article will explain the critical details regarding column reinforcement lapping, the significance of proper lapping, and the formula used to calculate the steel bar overlap in construction projects.

Jan 3, 2021 · In this blog, will discuss a few lesser known points or often compromised points about lapping of rebars during structural RC detailing. Before getting in to that let me quickly state some important points too.