Dual – loop force – displacement mixed control strategy and its application on the quasi – static test

Authors

  • Cong Zeng Harbin Institution of Technology, Harbin, China
  • Bin Wu Harbin Institution of Technology, Harbin, China
  • Guoshan Xu Harbin Institution of Technology, Harbin, China
  • Zheng Wang Harbin Institution of Technology, Harbin, China
  • Tianlin Pan School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, China

Keywords:

dual-loop force-displacement control method, mixed control strategy, control of servo-hydraulic actuator, quasi-static test, coupling of actuator and specimen

Abstract

The Quasi-static test is a well-known powerful methodology to evaluate the seismic performance of structural components and systems. One of the most important challenges in the Quasi-static testing is to achieve precise boundary conditions, especially for the axial loading of vertical components. The requirement of synchronized displacement loading and target axial force formed a pair of contradiction. A dual-loop force-displacement mixed control strategy is proposed. The presented approach is successfully verified through the quasi-static testing for a full-scale concrete filled steel tube column. The control targets are achieved with an excellent control performance.

Author Biographies

  • Cong Zeng, Harbin Institution of Technology, Harbin, China

    Key Lab of Structures and Dynamic Behavior and Control, Ministry of Education;

    School of Civil Engineering

  • Bin Wu, Harbin Institution of Technology, Harbin, China

    Key Lab of Structures and Dynamic Behavior and Control, Ministry of Education;

    School of Civil Engineering

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Published

2018-06-11

Issue

Engineering Review, Vol. 38, No. 3

Section

Articles

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How to Cite

Dual – loop force – displacement mixed control strategy and its application on the quasi – static test. (2018). Engineering Review, 38(3), 296-302. https://engineeringreview.org/index.php/ER/article/view/808