Question

A 250 x250 mm rcc column is reinforced with one percent steel.The permissible compressive stress of concrete and steel are 8 n/mm^2 and 150 n/mm^2 .Find axial load capacity

Answer 1

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Answer 2

•we know that,

Pu = 0.4 × fck × Ac + 0.67 × fy × Asc

Where,

Pu = factored axial load on the member,

fck = characteristic compressive strength of the concrete,

Ac = area of concrete,

fy = characteristic strength of the compression reinforcement, and

Asc = area of longit udinal reinfor cement for columns.

so,

Pu = [0.4 × 8 ×0.0625 (1-1/100)] + [0.67 × 150 × 0.0625 × 1/100] = [0.198 + 0.063 ]= 0.261= 261kN

so the axial load capacity is 261kN