采用微机开发的拟动力实验

DEVELOPMENT OF PSEUDODYNAMIC TEST WITH PC COMPUTER

本文介绍了在哈尔滨建筑大学力学与结构实验中心采用微机开发的拟动力实验。将力学与结构实验中心原有的大型电液伺服结构实验系统与微机进行联机,从而实现了多自由度结构的拟动力实验。文中介绍的拟动力实验的试件为某电厂40米高的筛碎贮仓1:6模型,只取出结构底层的两榀,具有两个自由度,所以实验中应用了子结构方法,数值积分方法采用了PCM—Newmark法。实验结果与分析结果吻合良好,说明拟动力实验系统的开发是成功的,同时也证明以部分结构进行拟动力实验来模拟整体结构的地震反应方法是可行的。

A pseudodynamic test with PC computer,carred out in Mechanics and Structural Testing Center of Harbin University of Architecture and Engineering,has been introduced in this paper. A MDOF' s pseudodynamic test has come true by means of connecting the hydraulic actuators with PC computer. The specimen is a 1/6 RC model of a tall building with 40 meter high. The substructural technique and PCM - Newmark numerical intergrating method were used in the testing. The testing results show that the development of pseudodynamic test with PC computer is successful and the substructural technique is available to simulate the earthquake response of structure.