Assessing the Vibrational Frequencies of the Cathedral of Cologne (Germany) by Means of Ambient Seismic Noise Analysis

Andreas Fäcke (), Stefano Parolai, Sandra Richwalski and Lothar Stempniewski

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2006, vol. 38, issue 1, 229-236

Abstract: Ambient seismic noise measurements were conducted inside the Cathedral of Cologne (Germany) for assessing its frequencies of vibration and for checking whether these occur in the range where soil amplification is expected. If this is the case, damages may increase in case of an earthquake due to an increased structural response of the building. Analysis of the ratio between the horizontal and vertical components of the spectra recorded at stations located inside the building as well as the ratio between the corresponding components of the spectra recorded simultaneously inside the building and at a reference station placed in the basement of the cathedral indicated several modes of vibration. Facilitated by these results an assessment of the seismic vulnerability was attempted for a 2D ground motion scenario using the finite element method. Copyright Springer 2006

Keywords: seismic noise; H/V; spectral ratio; resonance frequency; cathedral; modal analysis; seismic vulnerability (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1007/s11069-005-8616-2

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