本文介绍了一种分析单层工业厂房刚架计算的电比拟计算仪。根据位移法原理研究出了一个 比拟电路，并制成了仪器。该计算仪特点是简单、经济。经过实测，误差约在５％左右，适合 设计要求。本文叙述比拟原理和仪器构造，并附有一运算例题。 This article describes an electrical analog calculation instrument that analyzes the rigid frame calculation of a single-layer industrial plant. Based on the principle of displacement method, a comparative circuit was developed and an instrument was made. The calculator is characterized by simplicity and economy. After actual measurement, the error is about 5%, which is suitable for design requirements. This article describes the principle of comparison and instrument construction, with an example of calculations.