What are the IS 456 design clauses related to minimum and maximum bar requirements?

Question

Accepted Answer

IS 456 design clauses specify minimum and maximum bar requirements for structural design.

IS 456 is the Indian Standard code for the design of reinforced concrete structures.
The code specifies the minimum and maximum bar diameters, spacing, and cover requirements for different structural elements.
For example, as per IS 456, the minimum diameter of longitudinal bars in beams should not be less than 10 mm.
The maximum spacing between bars in a column should not exceed 3 times the diameter of the bar or 300 mm, whichever is smaller.
The minimum cover to the reinforcement in beams and slabs is specified based on the exposure conditions.

Accepted Answer

Its depends upon structure  and Soil bearing capacity  .Generally  we take 2% as a minimum and 6% as a maximum by weight of structure

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