足尺结构模型等效力控制试验研究

Equivalent Force Control Experimental Study on the Full-Scale Model

等效力控制试验方法是一种采用力反馈的闭环位移控制系统,本文将其先后应用于三层框支配筋砌块短肢砌体剪力墙结构和三层预制钢筋混凝土剪力墙结构足尺模型的拟动力子结构试验中,完成了试验子结构为多自由模型、计算子结构为弹性非线性复杂结构模型的拟动力子结构试验。试验结果表明,采用等效力控制进行复杂足尺结构模型的拟动力子结构试验是可行的,可以得到试验模型的下降段数据。

The equivalent force control （EFC） method is a closed-loop displacement control system using the force feedback. This paper applied the method to the full-scale three-storey frame-supported reinforced concrete short-leg masonry shear wall model and three-storey pre-cast reinforced concrete shear wall substructure test model, and completed the substructure pseudo-dynamic test on the complex model which includes the multi-degree of freedom physical substructure and the elastic non-linear numerical substructure. The test resuits show that the equivalent force control method for the full-scale model is feasible and can obtain the descent stage test data.