Yet again, Francis Ching expresses the importance of stabilizing all structure from every force there is. Good ways to reinforce a building is by adding frames (rigid and braced) and sheer walls, bracing is something every structure must have. Every structure has it’s own grid, which helps us to understand their function. In a gird we can see which columns and load bearing walls that are holding the most weight from their horizontal spanning elements. From this, we can determine which columns and or load bearing walls needs to be reinforced in case of an emergency. Ching also shows the limits of every material, some have their limits.