What is reinforcement coupler?
Rebar couplers are used in reinforced concrete structures to replace normal rebar lap joints. Each rebar coupler consists of a piece of rebar equipped with a thread and coupler sleeve at the right end as viewed in the direction of installation.
What is the use of couplers?
The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both.
What is Type 2 coupler?
A Type 2 mechanical splice, as defined in Section 21.1. 6.1(b) of the ACI 318 Code, is a mechanical splice that meets the requirements of a Type 1 mechanical splice and also develops the specified tensile strength of the reinforcing bar.
What is a positional coupler?
TTP Positional Couplers Positional Tapered Thread Couplers are used to join two straight, bent or curved bars when neither bar can be rotated. Available to suit bar sizes 12mm to 50mm, they can also be used as a gap closer between two fixed bars.
How many types of couplers are there?
Coupling fall into two main categories: Material Flexing and Mechanical Flexing. The material flexible types obtain their flexibility from stretching or compressing a resilient material, such as rubber, or from the flexing of thin metallic discs or grid.
What is the requirement of a good coupling?
Requirements Of A Good Shaft Coupling It should be easy to connect or disconnect. It should transmit the full power from one shaft to other shaft without losses. It should hold the shaft in perfect alignment. It should reduce transmission of shock loads.
What is the difference between Type 1 and Type 2 coupler?
A Type 1 mechanical splice is capable of transferring a stress of 1.25 fy, while a Type 2 mechanical splice is capable of transferring a stress of 1.25 fy and the specified tensile strength of the bar, but a lap splice is only able to transfer a stress equal to fy of the steel.
What is position coupler?
The Position Coupler series is designed for join same sized rebar which either one or both bars cannot be rotated. The coupler has machined taper threads on both the male and female ends. The coupler is pre-assembled on the rebar and then extended to meet the other end of the rebar.
What is steel coupler?
Mechanical Couplers are the cylindrical element that connects the two rotating edges of reinforcement bars, also known as an alternative to lapping rebars. The grade of the coupler should be equivalent to the reinforcement bars which ensures the maximum transmission of the load stresses from one bar to another.
Why use Ancon reinforcing bar couplers for reinforcing concrete?
The use of Ancon Reinforcing Bar Couplers can simplify the design and construction of reinforced concrete and reduce the amount of reinforcement required.
What are the different types of reinforcement couplers?
The Acon range of reinforcing bar couplers is the most comprehensive available and includes tapered threaded, parallel threaded, mechanically bolted and grouted couplers. Stainless steel couplers complete the range.
How do you use a tapered thread coupler on rebar?
The ends of the rebar are cut square and a tapered thread is cut onto the bar to suit the tapered thread coupler. The sleeve is tightened onto the threaded bar end using a calibrated torque wrench.
What is a Bartec coupler?
The Bartec system is one of the smallest couplers in the Ancon range. The bar ends are enlarged and a parallel thread is cut onto the bar to suit the coupler, which is then tightened using a pipe or chain wrench. CXL parallel threaded couplers are particularly appropriate for applications where fatigue is an issue.