Development of Physical-Parameter Identification Procedure for Energy-Dissipated Buildings with Symmetric Ductile Braces

Abstract:

In this paper, a pseudo-single-degree-of-freedom system identification procedure is developed to investigate the dynamic characteristics of energy-dissipated buildings equipped with symmetric ductile braces (SDBs). The primary structure is assumed to be linear on account of substantial reduction of seismic forces due to the installation of SDBs for which a bilinear hysteretic model is considered. The hysteretic model is in turn characterized by a backbone curve by which the multi-valued restoring force is transformed into a single-valued function. With the introduction of backbone curves, the system identification analysis of inelastic structures is significantly simplified. The proposed algorithm extracts individually the physical parameters of each primary structure and each energy-dissipation device that are considered useful information in the structural health monitoring. A numerical example is conducted to demonstrate the feasibility of using the proposed technique for physical parameter identification of partially inelastic energy-dissipated buildings.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 1149-1154
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.1149
• Online since: December 2013
• Authors: Ming Chih Huang, Yen Po Wang, Tzu Kang Lin, Jer Fu Wang
• Keywords: Energy-Dissipated Building, Hysteresis, Physical-Parameter Identification, Pseudo-Single-Degree-of-Freedom, Structural Health Monitoring (SHM)

References

[1] T.T. Soong and G.F. Dargush, John Wiley and Sons Inc., New York, (1997).

[2] Y.P. Wang and C.S. Chang Chien: Ear. Eng. and Str. Dyn., Vol. 38 (2009), p.1009.

[3] C.S. Chang Chien: Ph. D. thesis, National Chiao Tung University, Hsinchu, Taiwan, (2008).

[4] P.C. Jenning: J. of Eng. Mech., ASCE, Vol. 91 (1965), p.41.

[5] M.C. Huang, Y.P. Wang, J.R. Chang and Y.H. Chen: J. of Str. Eng., ASCE, Vol. 135 (2009), p.1107.

[6] M.T.A. Chaudhary, M. Abe, Y. Fujino and J. Yoshida: J. of Str. Eng., Vol. 126 (2000), p.1187.