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伪可变体系是介于常可变与不变体系间的一种结构，通常其识别较为复杂。本文基于计算机分析方法，讨论了伪可变复杂系统的两种判别程序。首先给出仅有一个自内力模态下，简单情形的识别过程。然后分析迭代判别法在判定伪可变复杂系统中的应用。最后提出多阶段自内力模态识别法，结果表明这一方法通常要比迭代法简便得多。本研究结果有助于对现代预应力结构体系的研究．
The pseudo-variable system is a structure between the often variable and invariable systems, and its identification is usually more complicated. Based on the computer analysis method, this paper discusses two kinds of discrimination procedures for pseudo-variable complex systems. First, the identification process of a simple case with only one internal force mode is given. Then the application of iterative discriminant analysis in the determination of pseudo-variable complex systems. Finally, a multi-stage self-internal force modal identification method is proposed. The results show that this method is usually much simpler than the iterative method. The results of this study contribute to the study of modern prestressed structural systems.