Contribution of ambient vibration recordings (free-field and buildings) for post-seismic analysis: The case of the Mw 7.3 Martinique (French Lesser Antilles) earthquake,November 29, 2007 |
| |
| Institution: | 1. ERA “risque sismique”, LRPC Nice, CETE Méditerranée, France;2. ISTerre, CNRS/IRD/IFSTTAR, Université Joseph Fourier, Grenoble 1, France;3. Swiss Seismological Service, ETH Zürich, Switzerland;1. Institut Claudius-Regaud, 20-24, rue du Pont-Saint-Pierre, 31052 Toulouse, France;2. Centre Oscar-Lambret, Unité de méthodologie et biostatistique, 3, rue Frédéric-Combemale, BP 307, 59020 Lille cedex, France;3. Institut Gustave-Roussy, Medical Oncology Department, 94800 Villejuif, France;4. Centre François-Baclesse, 14076 Caen, France;5. Centre Georges-François-Leclerc, 21000 Dijon, France;6. Grand Hôpital de Charleroi, 3 Grand Rue, Charleroi, Belgium;7. R&D Unicancer, 101, rue de Tolbiac, 75654 Paris, France;1. Department of Civil Engineering, Indian School of Mines, Dhanbad 826004, Jharkhand, India;2. Department of Architecture, Town and Regional Planning, Indian Institute of Engineering Science and Technology, Shibpur, P. O. Botanic Garden, Howrah 711103, West Bengal, India;3. Civil Engineering Department, National Institute of Technology Agartala, Jirania 799046, Tripura(w), India;1. Polytechnic University of Catalonia (UPC), DECA-ETCG, Barcelona Tech, Spain;2. Polytechnic University of Catalonia (UPC), DECA-MMCE, Barcelona Tech, Spain;3. Universidad Juárez Autónoma de Tabasco (UJAT), DAIA, Tabasco, Mexico |
| |
| Abstract: | Following the Mw 7.3 Martinique earthquake, November 29th, 2007, a post-seismic survey was conducted by the Bureau Central Sismologique Français (BCSF) for macroseismic intensities assessment. In addition to the inventories, ambient vibration recordings were performed close to the particularly damaged zones in the free-field and the buildings. The objective of the paper is to show the relevancy of performing ambient vibration recordings for post-earthquake surveys. The analyses of the recordings aim at explaining the variability of the damages through site effects, structure vulnerability or resonance phenomena and to help the characterization of the post-seismic building integrity. In three sites prone to site effects, we suspect damage to be related to a concordance between soil fundamental frequency and building resonance frequency. Besides, the recordings of ambient vibrations at La Trinité hospital before and after the earthquake allow us to quantify the damage due to earthquake in terms of stiffness loss. |
| |
| Keywords: | Ambient vibrations Site effect Resonance Post-earthquake survey Damage Martinique earthquake |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
