🕑 Reading time: 1 minute
Rebaring technique in reinforced concrete construction is a method for proper fabrication and placement of reinforcement bars as per the design and drawings for RCC works. We know that, concrete is very strong in compression and weak in tension. The reinforcement bars or rebars are good in tension, that are incorporated with concrete to make use of its tension property. Estimation of reinforcement bars for a reinforced concrete work is done by the engineer in charge. The engineer provides us with the specific details of the number of reinforcement bars, the shape and size of each bars for each work. There are different types of loads that including tension, compression, lateral, horizontal and torsion that are forms of pressure, against which the concrete has to show its strength. The strength gained by the R.C.C structure is dependent on the method, as well as the techniques that are employed to install the reinforcement bar. The reinforcement bars are mainly patterned over its surface to facilitate proper bonding with the concrete.
Contents:
Necessity of Rebaring Technique in Reinforced Concrete Construction
The steel reinforcement mostly is divided into two categories i.e.- Primary Reinforcement or Main Steel reinforcement
- Secondary reinforcement or distribution reinforcement
Operations in Rebaring for Reinforced Concrete Works
The three main operations carried out in rebaring for reinforced concrete construction bars are cutting, bending and tying. The diameter of reinforcement bars used reinforced concrete work mainly ranges from 6 to 42mm. These reinforcement bars come from the steel mill in specified lengths. So, during installation, the reinforcement bars must be cut into required size. The design engineer shows the details about the bars bending and related works, based on which the workers proceed the work. The rigid connection is made between all the members of the rebars with the help of steel wires.Equipments used for Rebaring Techniques
The equipment that is used for rebaring operations is developed with time, as the size of bars is increasing. Larger size bars are difficult to be handled by hand operation. The usage of chisel and hammer was an earlier practice used for bar bending. The bar is held fixed with the help of three thick bars over a bar bender bench. Then the bending is done by means of manual force, operated with the help of levers. To tie the rods, cutting pliers were used, and tied by steel wires. The enormous demand for work and bars with large diameters have made to depend on machines for bar bending. This improved method helps in reduction of time consumed by an ordinary method.
Different Types of Rebaring Equipments are:
The different equipment that is used for rebaring based on cutting, bending and tying operation are explained below.
