Perimeter column internal environment

This example is intended to show a hand calculation for a non-slender internal column using iteration (of x) to determine the reinforcement required.

This 300 x 300 mm perimeter column supports three suspended floors and the roof of an office block. It is to be designed at ground floor level where the storey height is 3.45 m and the clear height in the N-S direction (z direction) is 3.0 m and 3.325 m in the E-W direction (y direction). One hour fire resistance is required and /ck = 30 MPa.

From first order analysis, load case 1:

Load case 2:

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