建筑结构抗震性能研究和工程抗震性能检验的结构试验方法,通常是采用等振幅反复加载的静力试验方法,试验时必须首先对结构进入弹塑性阶段后的刚度衰减作必要的假定,所以不可避免地加入了人为的影响因素。用作动器——计算机联机系统对结构进行地震反应试验,即拟动力试验,由于试验过程中采用了结构实际的变化刚度,因此避免了人为影响,是目前世界上先进的结 The structural test method for studying the seismic performance of a building structure and the seismic performance test of a building is usually a static test method with repeated amplitude loading. The test must first make the necessary assumptions about the stiffness attenuation after the structure enters the elastoplastic stage, so it is inevitable that Added human influence factors. Actuator - computer online system for seismic response test of the structure, that is, pseudo-dynamic test, due to the actual stiffness of the structure used in the test process, thus avoiding human influence, is the world’s advanced knot