Identification of damping and stiffness matrix of building structure from response measurement

Chin-Hsiung Loh; Shih-Chuen Chien

doi:10.1117/12.434108

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30 July 2001 Identification of damping and stiffness matrix of building structure from response measurement

Chin-Hsiung Loh, Shih-Chuen Chien

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Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434108
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

A system realization algorithm is used to identify a structural model directly from input and response measurement data. The algorithm starts with computing the information matrix to derive a special correlation matrix that in turn produces the system observability matrix. A system model can then be identified from the observability matrix. Finally an algorithm was developed which produced a modal model, including stiffness matrix and damping matrix, from this state space system realization. Verification of the method through both numerical simulation and experimental data from shaking table test is carried out in this study.

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Chin-Hsiung Loh and Shih-Chuen Chien "Identification of damping and stiffness matrix of building structure from response measurement", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434108

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