TIMBER SEISMIC BANDS: CORRELATING THEIR CHARACTERISTICS WITH LOCAL SEISMIC ACTIVITIES AND UNDERSTANDING THEIR EFFECTS UNDER SEISMIC LOADS
| Autor: | Crété , Eugénie, Yadav , Santosh, Damerji , Hala, Hofmann , Milo, Vieux-Champagne , Florent, Sieffert , Yannick, Moles , Olivier, Garnier , Philippe |
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| Přispěvatelé: | CRAterre ( CRAterre ), École nationale supérieure d'architecture de Grenoble ( ENSAG ) -Ministère de la Culture et de la Communication ( MCC ), Architecture, Environnement & Cultures constructives ( AE&CC ), Laboratoire sols, solides, structures - risques [Grenoble] ( 3SR ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National Polytechnique de Grenoble ( INPG ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Risques, Vulnérabilité des structures et comportement mécanique des matériaux ( RV ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National Polytechnique de Grenoble ( INPG ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ) -Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National Polytechnique de Grenoble ( INPG ) -Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Chercheur indépendant, Laboratoire Matériaux et Durabilité des constructions [Toulouse] ( LMDC ), Université Toulouse III - Paul Sabatier ( UPS ), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse ( INSA Toulouse ), Institut National des Sciences Appliquées ( INSA ) -Institut National des Sciences Appliquées ( INSA ) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
[ SHS.ARCHI ] Humanities and Social Sciences/Architecture
space management Timber insertions Energy dissipation [ SHS.MUSEO ] Humanities and Social Sciences/Cultural heritage and museology [ SPI.MECA.MSMECA ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph] Masonry building Seismic shear band |
| Zdroj: | Inter ISC 2018-Anti-Seismic Vernacular Heritage of Anatolia and Beyond Inter ISC 2018-Anti-Seismic Vernacular Heritage of Anatolia and Beyond, Jul 2018, Kastamonu, France |
| Popis: | International audience; Masonry buildings are one of the most commonly found structures throughout the world. In seismic areas, people developed several techniques and practices to make them safer in case of earthquakes. One of the most widespread techniques, used for centuries in several countries of Asia, Middle East, Europe, Central and South America, is the insertion of horizontal timber seismic bands into the load-bearing masonry walls. This paper first describes the variation in the timber bands disposals and how it correlates with local seismic activities in different regions of the Alpine-Himalayan belt. This research is based on a literature review and on several on-site surveys. Then, an analysis resulting from post-earthquakes observations, some experiments and a literature review allows for a global understanding on how these timber bands may contribute to a good behaviour of masonry buildings during earthquakes: by tying the building together, by preventing the propagation of diagonal shear cracks on the in-plane walls and flexural cracks on the out-of-plane walls, by dissipating energy, etc. The third part of the paper deals with two experimental campaigns conducted to better understand the mechanical impact of the reinforcement. The first one is based on two adobe walls (with and without horizontal timber reinforcement) submitted to lateral quasi-static cyclic load. It allowed for the estimation of the lateral strength, the stiffness degradation and the dissipated energy of both reinforced and unre-inforced masonry walls and for the comparison of their failure modes. The second experimental campaign focuses on the energy dissipation that occurs at the interface between the seismic band and the masonry depending on the materials used and their disposals. To this purpose, seismic bands in concrete, timber and bamboos of different configurations are submitted to lateral quasi-static cyclic loads and the energy dissipation occurring is calculated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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