Stiffness of membrane structures is provided by surface curve and pre-stresses, therefore form-finding is the first and foremost step in design of membrane structures.

• 建筑膜结构由柔性薄膜张拉而成,依赖于结构的几何曲面和膜内张力来提供必需的刚度,膜结构设计的首要步骤是找形分析,其目的是找出满足建筑要求的空间形状及与之对应的张力分布。