Mechanical rebar connections, also known as mechanical splices or mechanical coupler, are used to join lengths of

rebar Rebar (short for reinforcement bar or reinforcing bar), known when massed as reinforcing steel or steel reinforcement, is a tension device added to concrete to form ''reinforced concrete'' and reinforced masonry structures to strengthen and aid ...

together to transfer forces from one steel rebar to another. Devoran-rebar-coupler

Mechanical couplers can be advantageous in comparison with conventional methods of lap splicing because of the requirement for less steel for overlapping. It is more effective in the

seismic Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the generation and propagation of elastic ...

detailing to avoid reinforcement congestion problems. The couplers are also used in pre-cast construction.

Use

Any two bars of same or different

diameters In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle. It can also be defined as the longest chord of the circle. Both definitions are also valid for ...

are joined using the couplers by rotating like nut and bolt. It is widely being used in developing countries such as India where these Couplers are certified under IS Code 16172:2023. Recently Bureau of Indian Standards(BIS) also issued first license for ISI mark certification in India. https://b2bpurchase.com/raising-the-bar-of-durability-in-heavy-duty-infrastructure-with-sntp-isi-mark-reinforcement-couplers/

Notes

*Orsman, Richard (2011). ''Mechanical Splicing'', 08 (Devoran Metals).

References

External links

Youtube advantages of mechanical splicing
Construction equipment {{Engineering-stub