结构工程师2011，Vol.27Issue(z1)：37-41,5.
基于力和位移混合控制的多自由度结构拟静力实验方法研究
Development of Force-Displacement Mixed Control for Quasi-Static Test of Structure with Multiple Degrees of Freedom
赵刚 1潘鹏 1聂建国 1王宗纲1
作者信息
- 1. 土木工程安全与耐久教育部重点实验室,清华大学土木工程系,北京,100084
- 折叠
摘要
Abstract
In quasi-static test for structures with multiple degrees of freedom system, the forces exerted on the structures commonly follow a prescribed force profile, e.g. triangular pattern; therefore, force control becomes the natural choice. However, force control are not applicable any more when the tested structure sustain significant strength degradation during the collapse stage. To this end, a force-displacement mixed control algorithm was devised to achieve the stable control of quasi-static loading using a prescribed force profile. Based on the Flex-Test IIm platform of MTS cooperation, a test program called TMPTG using the mixed control algorithm was developed, physical tests were conducted, and the effectiveness of the algorithm was verified.关键词
结构实验方法/拟静力实验/倒塌实验/力和位移混合控制/控制软件Key words
Quasi-static test/ multiple degrees of freedom/ force-displacement mixed control/ test program引用本文复制引用
赵刚,潘鹏,聂建国,王宗纲..基于力和位移混合控制的多自由度结构拟静力实验方法研究[J].结构工程师,2011,27(z1):37-41,5.
