Pseudo‐dynamic testing using conventional testing devices
Pseudo‐dynamic testing using conventional testing devices
复制标题
使用传统测试设备进行伪动态测试
DOI：
10.1002/eqe.4290241009
复制
发表时间：
1995
影响因子：
4.5
通讯作者：
Hideichi Igarashi
中科院分区：
文献类型：
--
作者：
M. Nakashima;Takashi Akazawa;Hideichi Igarashi
本文介绍了一种新型的拟动力试验系统的研制，该系统采用传统的静力千斤顶加载。两个新的硬件设备开发的系统进行了详细说明：一个液压泵系统，可以调整油流量使用逆变器电机，和一个控制器，控制千斤顶的运动与位移反馈信号从数字位移传感器传输。该系统的独特优势概括为：更大的力容量实现的静态千斤顶，最大限度地利用现有的许多结构测试实验室的硬件设备，并通过分离到多个PC的任务完成程序开发的灵活性。首先通过单自由度体系的拟动力试验，然后通过具有滞回阻尼器的十层建筑模型的拟动力试验来校准系统的可靠性。对于后者的测试，子结构技术已被纳入。根据系统控制位移的能力和与数值结果的比较，讨论了所得结果的准确性。
This paper presents the development of a new type of pseudo-dynamic test system, in which a conventional static jack is utilized for loading. Two of the new hardware devices developed for the system are detailed: a hydraulic pump system that can adjust the rate of oil flow using an inverter motor, and a controller that controls the jack's motion with a displacement feedback signal transmitted from a digital displacement transducer. The unique advantages of the system are summarized as: larger force capacity achieved by the static jack, maximum use of hardware devices available in many existing structural testing laboratories, and flexibility for program development accomplished by separating tasks into multiple PCs. The reliability of the system is calibrated first by a pseudo-dynamic test for an SDOF system and then by a pseudo-dynamic test for a ten-storey building model having hysteretic dampers. For the latter test, substructuring techniques have been incorporated. The accuracy of the results obtained is discussed based upon the capacity of the system to control displacement and comparison with numerical results.