Based on the catenary theory of cables, an iteration method was presented for the shape-finding analysis of spatial-cable suspension Bridges.

基于索的悬链线理论，提出了一种可用于悬索桥空间主缆体系线形分析的迭代计算方法。

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The theory of its design mainly includes three aspects: shape-finding analysis, load analysis and patterning analysis.

索膜结构是一种全新的建筑结构形式，其设计理论主要包括找形分析、荷载分析和裁剪分析三方面。

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The shape-finding analysis of slack cable-bar assemblies is involved in the former topic, and the motion tracing analysis of planar pin-bar mechanisms can describe the latter topic well.

前者涉及到松弛态索杆体系的找形分析，后者可简化为平面连杆机构的运动形态分析。

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