Types of bars in beam - Reinforcement details of simply supported beam - RCC structures Explained with video

 Simply Supported Beam:

A simply supported beam is beam which is just supported over two end supports without any fixity between beam and supports.

Types of Reinforcement bars in a Simply Supported Beam:

There are mainly four types of bars in a simply supported beam. They are:

1. Main Straight Bars

2. Main Cranked Bars

3. Hanger or Anchor Bars

4. Stirrups

1. Main Straight Bars:

        These are the straight bars provided in the bottom side of the beam to resist the bending moment of the beam.

2. Main Cranked Bars or Bent-up Bars:

        These bars are provided in bottom side of the beam as well but the edges of the bars are bent up to resist the negative bending moment at the supports and a part of shear.

3. Hanger or Anchor Bars:

        These bars are the straight bars of lesser diameter ( Generally 12mm ) compared to main bars and are provided in the top side of the beam to just support the stirrups and place stirrups in position. 

4. Stirrups:

        These are the rectangular shaped bars wound around the main bars and hanger bars and provided throughout the length of the beam. Their function in beam is to resist the Shear force developed in the beam. That's why they are also called as "Shear Reinforcement".

            All these types of bars are clearly explained in the below provided video:

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