膜结构裁剪的若干问题探讨

Discussion of the Cutting Pattern for the Membrane Structure

膜结构的裁剪分析是膜结构设计中的重要一环。本文主要阐述了膜结构裁剪过程中的若干问题,介绍了剖分空间膜面的测地线法和将空间膜条转化为平面膜片的最小二乘法,给出了收缩补偿值的计算公式,最后分析了影响裁剪线确定的因素,为膜结构裁剪的进一步研究提供了理论依据。

The cutting pattern is one of the most important steps in the designation of the membrane structure. In this paper, several key problems during the membrane's cutting are discussed. Firstly, the calculating formula of the geodesic line is given and the least square method is used to unfold the curve surface. Then the compensation of the membrane's prestress release and creep affection is thought about. Finally, the factors that related to the determination of the cutting lines are analyzed. All these are helpful to further study of the membrane's cutting.