Example

Calculate the moment and axial force that can be sustained by the section where the neutral axis depth is 600 mm.

Note:

The example has been given in this way so that repeated iterations are not necessary. These would not provide any new information to the reader.

5.2.3.1 Basic method

When the neutral axis is outside the section the ultimate compressive strain is less than 0.0035 and is given by:

The conditions in the section are shown in Figure 5.2.

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