The Baseline Stiffness Method for Damage Detection in Buildings Without Baseline Modal Parameters |
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Authors: | Ramsés Rodríguez J. Alberto Escobar Roberto Gómez |
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Affiliation: | 1. Escuela Superior de Ingeniería y Arquitectura , Zacatenco, México rrodriguezr@ipn.mx;3. Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria , Coyoacan, México |
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Abstract: | A new method called the Baseline Stiffness Method (BSM), used to locate and quantify damage in buildings without baseline modal parameters (undamaged state), is presented. In order to determine this reference state, the BSM uses modal parameters from the damaged state of the building and the lateral stiffness matrix of the first story without damage. Afterwards, by means of an iterative process using singular value decomposition, location and severity of damage are obtained by comparing information about the damaged and non damaged states. Numerical and experimental examples are presented and discussed showing the advantages of the application of the proposed BSM. |
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Keywords: | Buildings Damage Detection Baseline State Modal Parameters Dynamics |
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