reinforced concrete column design

Top 10 Quick guides for Reinforced concrete Column design

The column is a structural member which bear the load of slab, beam and stairs and transfer the total load to the footing and finally to the soil. So, column of any structure must be stronger than another member while designing. Here I have discussed the top 10 quick guides for reinforced concrete column design which will help you to avoid mistakes while designing columns.

The design of the column depends on materials used in construction, types, and intensity of load acting on it, whether it is precast or cast-in-situ, the durability of structure you want to construct, environmental factors, etc.

Guide and Basic Rules for reinforced concrete column design. This is the thumb rule to design a column to bear load.

Let us learn step by step for better understanding.

  1. The Minimum number of steel bars in the rectangular column should be 4 and for the circular column should be 6.
  2. The minimum grade of concrete to be used in the column should be M20. {Here, M20 is Grade of concrete which represents the strength of the concrete}
  3. The dimension of a column should not be less than 9″ X 9″ Inches.
  4. The quantity of steel should be less than 6% but more than 0.8% of the concrete column.
  5. The longitudinal steel rod should have a diameter of more than 12 mm and should not more than 50 mm. {Longitudinal rod is vertical steel rod or main rod used in column}
  6. The minimum clear cover of concrete to the outside of longitudinal bars should not be less than 40 mm. {Clear cover is the distance between the steel rod and outer surface of the concrete}
  7. If the main steel rods have to overlap with each other for continuity of construction, then the overlap distance should be more than 24 times the diameter of the smallest steel. {Overlap occurs when two rods are connected with each other}
  8. The minimum diameter of the ties should not be less than 1/4 th of the diameter of the main steel bars but never use ties of less than 5 mm.
  9. The least spacing of the lateral ties in the column may be used of 150 mm.
  10. The Steel rod should be straight while overlapping exists.

So, guys these are the most important guidelines to design a RCC column. Now you can download the image below I have prepared for you.

Quick guides for reinforced concrete column design
Quick guides for reinforced concrete column design

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I hope guys this article on “Reinforced concrete column design” remains helpful to you. Please comment below for the calculation to design the column step by step according to IS code.