Application of Equivalent Force Control Method for Pseudo-dynamic Substructure Tests of Coupling Beam Damper
ZHOU Da-rui1, XU Guo-shan1, WU Bin1, TENG Jun2, MA Bo-tao2
1. School of Civil Engineering, Harbin Institute of Technology, Heilongjiang Harbin 150090, China;2. Shenzhen Graduate School of Harbin Institute of Technology, Shenzhen 518055, China
Abstract： The equivalent force control method (EFCM) replaces numerical iteration with feedback control strategy to solve the nonlinear equations of motion for real-time substructure testing with implicit integration method. This paper successfully applies the EFCM for the pseudo-dynamic substructure tests of coupled shear wall structure with coupling beam damper specimen in order to investigate the seismic performance of the structure. The EFCM and the determination of some key elements in EFC were introduced, and the simplified model and pseudo-dynamic tests of the coupled shear wall structure with coupling beam damper were presented. It is shown that the EFCM can achieve excellent performance in terms of stability and accuracy if the equivalent force controller and force-displacement conversion factor were properly designed, and the coupling beam damper can effectively control the seismic response of the coupled shear wall.
2011, Vol. 30 
