What are Lenton couplers?

nVent LENTON Standard Couplers are designed to splice the same diameter bars where at least one bar is free to be rotated and is not restricted in its axial direction. The couplers are machined to have taper threads at both ends, creating a mechanical butt splice of two sections of reinforcing steel.

What is a Lenton?

The LENTON® TERMINATOR is an over-sized end anchor secured to the end of a length of reinforcing steel, creating anchorage within the concrete and reducing congestion. LENTON® LOCK Mechanical Rebar System. LENTON® LOCK, a new in-situ rebar splice from ERICO®, requires no bar-end preparation.

Where are mechanical couplers used?

Mechanical couplers are widely used in the present construction industry to joint two reinforcement bars together. The lapping of reinforcement is very difficult and time-consuming. Further, some costs also can be saved with mechanical couplers.

What are the different types of mechanical joints?

Contents

• 1 Pin.
• 2 Prismatic.
• 3 Ball.
• 4 Knuckle.
• 5 Turnbuckle.
• 6 Cotterpin.
• 7 Bolted.
• 8 Screw.

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.

How does a Formsaver work?

The FORM SAVER solves the age old problem of joining rebar in staged construction while protecting valuable forms from damage. All FORM SAVER couplers are supplied pre-assembled to the rebar with mounting plate for attachment to form work and a pressed-in metal disc thread protector, which can be easily removed.

What are mechanical joint fittings?

The standard defines “mechanical joint” as: “a joint in which a positive seal is achieved when a gasket is compressed by means of a mechanical device.” A mechanical-joint (MJ) connection is the most common method used to join PVC pipe to a valve or an iron fitting.

How do mechanical joints fail?

The mechanically fastened joints fail by three basic mechanisms: net-tension, shear out, and bearing failure (Khashaba et al., 2013) . …

What is coupler in steel?

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 coupler is used in construction?

A steel coupler is used to couple or joins two pieces of steel together in the building. When long lengths of steel bars are needed in building a column or when the need of joining additional reinforcement to existing bars arises, the general practice is to ‘lap’ (tying of bars together next to each other).

Is code for mechanical couplers?

1.1 This standard covers the requirements and tests applicable to reinforcement couplers to be used in reinforced concrete constructions for mechanical splicing of bars conforming to IS 1786.

What are Formsavers?

Form Savers are ideal for staged construction and segmental pour applications such as precast, stairwells, highway, and bridge construction. They eliminate protruding dowel bars, and the need for temporary openings, or drilling holes into the formwork.

Is welding allowed in TMT bars?

Welding is permitted if the metallurgical component of the weld metal is designed to have a proportionate carbon content of less than 0.4 percent. There are different welding forms for joining the materials.

What are mechanical couplers?

Mechanical couplers are widely used in the present construction industry to joint two reinforcement bars together. The lapping of reinforcement is very difficult and time-consuming.

Why do we need couplers for rebar?

Poor quality joints may lead to structural failures. Mainly there are two types of couplers for rebar. Mainly the couplers are used to carry the tensile force. However, they are using to carry the compressive forces. Further, most of the time, couplers are tested for tension.

What are the advantages of using steel couplers?

These steel couplers making the construction easier. Further, when the couplers are installed at the site, they are staggered to avoid any weak joints. These couplers can be used for beams, slabs, columns, shear links, etc. The application shall be as approved by the engineer at the site or as per the recommendation of the structural engineer.

What are the advantages of Mechanical couplers over reinforcement laps?

The lapping of reinforcement is very difficult and time-consuming. Further, some costs also can be saved with mechanical couplers. In addition, it is a saving of materials and very useful in the areas where the reinforcement is congested. What is Mechanical Coupler? It is a replacement for the reinforcement laps.