Welcome back, Bending is the verification I do the most when I design reinforced concrete elements. You need to verify bending when you design beams, slabs, frames, foundation beams, pad and strip footings and many more structural elements. Concrete is great in compression but very weak in tension. The steel reinforcement is added to take up the tension forces. The bending moment of a rc cross-section is split up in a compression and a tension component, where the compression component is a...