Answer / ajay saini

there are many functions of chairs in reinforcement.
1. it maintains the gap between the two bars.
2.it supports the bars.
3.it increases the strength of the structure and maintain the tension in RCC.
4.it helps to prevent the fear of building collapse due to the failure of compression and tension zone.

Answer / s.prabaharan

Actually chair rod is provide for keeping space for bottom distributor rod & top distributor rod.

Answer / arvind rai

Basically Chairs is provided in slab and flooring work for maintain spacing in top layer jaali & bottom layer jalli for avoiding of collapse of bar when castion work is start.

Answer / b s sushmita

Chair rods are nothing but just enabling rods that help to maintain the proper space between the bottom and top reinforcements of a slab.

They dont carry any load and they need not be given special care. It has to be placed as one number in one sqm. 

Answer / v.k.nanda

How many no. of chairs required in one SQM ?I'm not able to get answer to this qyery. Kindly clarify.

Answer / mohammad danish makrani

Generally , chairs bars is provided in rcc raft foundation and also in rcc slab for keeping distance(separation) b/w bottom reinforcement mesh and top reinforcement mesh. we can say that its is supportive nature and also maintain spacing. and hold the upper reinforcement and resist the compressive stress. minimum dia. of chair bar is 10/12mm. Thanks

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