建筑结构双向拟动力试验的程序控制

Method of Program Control in Pseudo-Dynamic Test for Aseismic Structures in Two Directions

建筑结构双向拟动力试验可实现结构的空间地震反应和结构在空间任一平面内的动力反应,为建筑结构的抗震性能研究,工程抗震设计、检验和教学提供先进的试验方法。本文阐述了建筑结构双向拟动力试验程序控制的原理,控制程序中的地震反应分析方法。提出了在试验过程控制中如何解决多作动器同步加载的协调稳定,消除试验系统振荡,处理各作动器之间的相互影响,保持双向作动器相互正交的方法。介绍程序适配的基本试验系统,程序运行时的控制命令和前、后期数据处理能力。并通过实例讲述程序使用方法和程序流程。

The Pseudo-Dynamic Test for aseismetic structures in two directions can realize the spatial composition of responses when forces of earthquake act upon the building structures and obtain the dynamic response in any one plane of a spatial structure. It provides an advanced test method for the aseismic structures study, the engineering aseismic design, the engineering aseismic inspection and teaching. This paper describes the principle of control and the method of earthquake response analysis in control program. The methods of process control in program about multi-ACTer are discussed, i.e. keeping control loading in coordination and stabilization, eliminating oscillating of test system, removing mutual influence, keeping mutually orthogonal in two directions. Besides, compatibility of basic system of test, control command process functions at before and after are explained. Finally, the using method and the program flow are introduced by means of test examples.