By hand, we can compute three points (pure compression, pure flexure,Â and the balance point). We then draw a straight line between pure compressionÂ and the balance point, and either a straight line or an appropriateÂ curve between the balance point and pure flexure. This approach isÂ commonly applied to reinforced concrete columns.

**Pure Compression**

**Pure Flexure**

As before, the possible contribution of compressive reinforcement is small, and can be neglected.

Next, calculate the corresponding tensile and compressive forces