Analysis of the mechanical behaviour of soft rockfall barriers
| Autor: | GHOUSSOUB, Leyla, Douthe, Cyril, Sab, Karam |
|---|---|
| Přispěvatelé: | Expérimentation et Modélisation des Matériaux et des Structures (IFSTTAR/MAST/EMMS), Communauté Université Paris-Est-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Matériaux et Structures Architecturés (msa), Laboratoire Navier (navier umr 8205), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS), Cadic, Ifsttar |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
[PHYS.MECA.STRU] Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]
[PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Mechanics of the structures [physics.class-ph] CABLE COMPORTEMENT MECANIQUE [SPI.MECA.STRU] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph] [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] [SPI.MECA] Engineering Sciences [physics]/Mechanics [physics.med-ph] HOMOGENEISATION [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph] |
| Zdroj: | RocExs 2014-Proceedings of the 5th Interdisciplinary Workshop on Rockfall Protection RocExs 2014-5th Interdisciplinary Workshop on Rockfall Protection RocExs 2014-5th Interdisciplinary Workshop on Rockfall Protection, May 2014, Italy. 4 p |
| Popis: | International audience; Soft rockfall barriers are complex structures that generally consist of a metallic net supported by steel posts and cables with brake elements. Several experimental and numerical studies have been carried out to evaluate their behaviour and a technical agreement in EU was recently established to certify these barriers based on experimental tests. Actually, manufacturers develop rockfall kits with their own technical specificities. The objective of the present paper is to determine the intrinsic properties of most common nets technologies and to investigate their influence on the overall mechanical behaviour of the structure. To this end, a comprehensive comparison between the local behaviours of the different nets is first presented using equivalent homogeneous membranes. Results derived for square nets under static concentrated loading illustrate the influence of the manufacturing technology on the deflection and stresses distribution. Then, a numerical and analytical model for the so-called "curtain effect" is developed and validated. In the conclusion, it is focused on the capacity of the pro-posed methodology to study and evaluate the response of the whole barrier. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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