Structural form selection: select the appropriate structural form according to the use function, span and architectural style of the canopy. Common types are cantilever type, column supported type, pull rod type, etc. The cantilever structure is simple and suitable for small span canopy; Column support type is suitable for large-span canopy, which can increase stability. Force transmission and facade effect: handle the relationship between force transmission and facade effect to avoid the impact on architectural aesthetics due to excessive structural components. For example, for a large overhanging canopy, the load can be shared by structural members such as tie rods.