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

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

Puni tekst: engleski PDF 827 Kb

str. 296-302

preuzimanja: 390



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.

Ključne riječi

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

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