✅How To Find Size of Column?

Опубликовано: 11 Май 2026
на канале: Cad By Simplified Academy
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✅How To Find Size of Column?

📌GIVEN DATA
Axial Load (P) = 750 kN
Factored Load (Pu) = 1.5 x 750 = 1125 kN
M25 = fck = 25 N/mm²
Fe415 = fy = 415N/mm²

📌Axial Load (IS 456:2000)
◼️Pu= 0.4 x fck x Ac + 0.67 x fy x Asc
Assume, Asc as 1% on Ag
Area Of Steel In Concrete (Asc)
Gross Area Of Column (Ag)

📌Calculation
1125 x 10³ = 0.4 x 25 (0.99 Ag) + 0.67 x 415 x 0.01Ag
1125 x 10³ = 12.68 Ag

📌Gross Area
Ag = (1125 x 10³) / 12.68
Ag = 88722 mm²

📌Size Of Column
Ag = 88722 mm²
Ag = B²
B = √Ag
B = √88722
B = 300 x 300mm
Asc = 0.01Ag
Asc = 0.01 X 88722
Asc = 887mm²
Assume 16mm dia bar 6No's

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Video Description :

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Keywords :
Load Bearing - The capacity of the column to support weight.
Material - Types such as concrete, steel, wood.
Cross-Sectional Area - The shape and size of the column's cross-section.
Reinforcement - Use of rebar or other materials to strengthen the column.
Buckling - The potential for the column to bend under load.
Slenderness Ratio - The ratio of column length to its cross-sectional dimensions.
Column Base - The connection of the column to the foundation.
Effective Length - The length of the column considering end conditions.
Moment of Inertia - A measure of the column's resistance to bending.
Bearing Capacity - The ability of the column to support loads without failure.
Shear Force - Forces acting parallel to the cross-section.
Axial Load - The force applied along the column's axis.

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