On‐line hybrid test combining with general‐purpose finite element software

A new on-line hybrid test system incorporated with the substructuring technique is developed. In this system, a general-purpose finite element software is employed to obtain the restoring forces of the numerical substructure accurately. The restart option is repeatedly used to accommodate the software with alternating loading and analysis characteristic of the on-line test but without touching the source code. An eight-storey base-isolated structure is tested to evaluate the feasibility and effectiveness of the proposed test system. The overall structure is divided into two substructures, i.e. a superstructure to be analysed by the software and a base-isolation layer to be tested physically. Collisions between the base-isolation layer and the surrounding walls are considered in the test. The responses of the overall structure are reasonable, and smooth operation is achieved without any malfunction. Copyright © 2006 John Wiley & Sons, Ltd.

[1]  Masayoshi Nakashima,et al.  Development of real‐time pseudo dynamic testing , 1992 .

[2]  Masayoshi Nakashima,et al.  PART1:RELATIONSHIP BETWEEN INTEGRATION TIME INTERVAL AND RESPONSE STABILITY IN PSEUDO DYNAMIC TESTING : Stability and accuracy behavior of pseudo dynamic response , 1985 .

[3]  David J. Wagg,et al.  Stability analysis of real‐time dynamic substructuring using delay differential equation models , 2005 .

[4]  Stephen A. Mahin,et al.  Pseudodynamic Method for Seismic Testing , 1985 .

[5]  Masayoshi Nakashima,et al.  Online test using displacement–force mixed control , 2005 .

[6]  David J. Wagg,et al.  Control issues relating to real‐time substructuring experiments using a shaking table , 2005 .

[7]  P. Benson Shing,et al.  Application of Pseudodynamic Test Method to Structural Research , 1996 .

[8]  G. Magonette,et al.  Pseudo‐dynamic testing of bridges using non‐linear substructuring , 2004 .

[9]  Guoshan Xu,et al.  Operator‐splitting method for real‐time substructure testing , 2006 .

[10]  Gregory L. Fenves,et al.  Software framework for distributed experimental–computational simulation of structural systems , 2006 .

[12]  Peng Pan,et al.  Online hybrid test by internet linkage of distributed test‐analysis domains , 2005 .

[13]  Xiaoguang Lin,et al.  SUB-STRUCTURE PSEUDO-DYNAMIC TEST SCHEME SUITABLE FOR BENDING-SHEAR TYPE FLEXIBLE STEEL FRAMES , 2001 .

[14]  Masayoshi Nakashima,et al.  Pseudo‐dynamic testing using conventional testing devices , 1995 .