When we build buildings, we must consider gravity, gravity causes objects to fall, we must also consider Newton’s third law of motion – for each force acting on the body, the body exerts the opposite size on the same line of action as the original force Force, this basically tells us that when we build a building, we must strike a balance between power. Structural elements must follow the basis of these rules. Structural force is any effect that causes changes in the shape or movement of the body. Structures like Coulms help support the weight of objects above it. We must know that these objects are strong, so they are not crushed or deformed by their own weight. The beams must be strong enough so that they do not fall into the load (bending stress) above them, and the arches must also be able to support them. The quality and ability to disperse gravity so they are not destroyed separately.