8 results
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2. Assessment of seismic vulnerability of typical Quebec city bridges considering the site-specific amplification effects.
- Author
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Galy, Bertrand, Khaled, Amar, and Nollet, Marie-José
- Subjects
EFFECT of earthquakes on bridges ,DUCTILITY ,STRATIGRAPHIC geology ,CONSTRUCTION laws ,SOIL profiles ,ACCELEROGRAMS ,ENERGY dissipation - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
3. Effect of reinforcement ratio on punching capacity of RC plates.
- Author
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Rizk, E., Marzouk, H., Hussein, A., and Hossin, M.
- Subjects
REINFORCED concrete ,STRUCTURAL plates ,SHEAR (Mechanics) ,STRENGTH of materials ,DATABASES ,STATISTICS ,DUCTILITY - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
- Full Text
- View/download PDF
4. Conception sismique des murs de refend couplés, selon la norme canadienne Calcul des ouvrages en béton 2004 et le Code national du bâtiment - Canada 2005.
- Author
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Benazza, Tewfik and Chaallal, Omar
- Subjects
SHEAR walls ,EARTHQUAKE zones ,CONSTRUCTION laws ,RISK management in business ,FLOW charts - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2009
- Full Text
- View/download PDF
5. Seismic performance of a full-scale, reinforced high-performance concrete building. Part I: Experimental study.
- Author
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Mousseau, Sébastien and Paultre, Patrick
- Subjects
REINFORCED concrete buildings ,EARTHQUAKE resistant design ,CONTINUUM damage mechanics ,VIBRATION tests ,DUCTILITY ,STRUCTURAL analysis (Engineering) - Abstract
Full-scale tests provide valuable information on the characteristics of building structures that can be used to evaluate design methods, to calibrate modelling techniques, and to determine damage corresponding to loading levels. These tests are scarce due to the enormous requirements in testing space and specialized testing equipment. The seismic behaviour of a full-scale, two-storey, reinforced high-performance concrete building designed with moderate ductility detailing is evaluated by pseudo-dynamic testing, during which increasing seismic loads are applied, resulting in increasing levels of permanent damage to the structure. To monitor the level of damage, a series of successive forced-vibration tests are also carried out at each step of the process and are used to track changes in the key dynamic properties of the building. The paper presents the design of the test structure according to the new edition of the CSA A23.3-04 Design of concrete structures standard, the series of pseudo-dynamic tests simulating different levels of earthquake excitation consistent with the 2005 edition of the National building code of Canada, and the evaluation of the performance of the building. It is shown that the detailing requirements of CSA A23.3-04 are more than adequate to provide the ductility and overstrength expected. Les essais à grande échelle fournissent des informations importantes sur les caractéristiques des structures pouvant être utilisées pour évaluer les méthodes de dimensionnement, pour calibrer des techniques de modélisation, et pour déterminer l'endommagement correspondant à des niveaux de chargement. La rareté de ces essais est due principalement à la nécessité de disposer de grands espaces de laboratoire et d'équipements d'essais spécialisés. Dans cet article, le comportement d'un bâtiment en vraie grandeur de deux étages est évalué par essais pseudo-dynamiques dans lesquels le bâtiment est soumis à des niveaux d'excitation sismique croissants causant des dommages de plus en plus importants à la structure. Le bâtiment est construit en béton à hautes performances pour posséder une ductilité modérée. Des essais en vibration forcée sont utilisées pour évaluer les changements dans les propriétés dynamiques de la structure. L'article présente le dimensionnement de la structure d'après la nouvelle édition de la norme CSA A23.3-04, Dimensionnement des structures en béton, la suite des essais pseudo-dynamiques simulant les différents niveaux d'excitation des tremblements de terre consistants avec le Code national du bâtiment du Canada 2005, et l'évaluation de la performance du bâtiment. On montre que les règlements de la norme CSA A23.3-04 sont tout à fait adéquats pour assurer le niveau de ductilité et de surcapacité désiré. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
6. Deformation and ductility considerations of ductile coupled shear walls located in Canadian seismic regions.
- Author
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Chaallal, O and Gauthier, D
- Subjects
SHEAR walls ,WALL panels ,PARTITIONS (Building) ,DUCTILITY - Abstract
This paper presents the results of an analytical study on the nonlinear deformation and ductility response of reinforced concrete ductile coupled shear walls (CSWs) under seismic loadings. The CSWs were designed, calculated, and detailed in compliance with the National Building Code of Canada (NBCC) 1995 and the Canadian Concrete Standard CAN3-A23.3-94. The parameters and assumptions of the study as well as the description of the models and the procedure were fully described elsewhere. Results indicated that the maximum interstorey drift from dynamic analyses was well below that obtained from static analyses with NBCC specified lateral forces. It was also found to be substantially lower for tall CSWs compared to short or medium-height walls, and decreased only slightly as the degree of coupling increased within the range considered in this study. It was also highest for seismic records with low PGA/PGV ratios. Plastic hinge rotations as well as accumulated plastic hinge rotations generally decreased as the number of storeys increased. The maximum displacement ductility demand factor remained below the NBCC value of 4.0 specified for ductile CSWs. The influence of degree of coupling on the maximum displacement ductility demand factor was found negligible. Also, the maximum displacement ductility demand factor generally decreased as the number of storeys increased. The maximum rotational ductility demand factor in coupling beams decreased as the number of storeys increased and was generally less than the practical accepted limit of 10, except for a few short CSWs.Key words: coupled shear walls, reinforced concrete, seismic, degree of coupling, frequency content, interstorey drift, plastic hinge deformation, ductility.Cet article présente les résultats d'une étude analytique sur les déformations non-linéaires et la réponse ductile de murs de refend couplés (« coupled shear walls », CSWs) ductiles en béton armé sous des charges sismiques. Les CSWs sont conçus, calculés et détaillés en respectant le Code national du bâtiment du Canada (CNBC) de 1995 et les Normes canadiennes sur le béton CAN3-A23.3-94. Les paramètres et hypothèses de l'étude de même que la description des modèles et de la procédure sont décrits ailleurs de façon détaillée. Les résultats indiquent que le mouvement maximal inter-étages provenant des analyses dynamiques est bien en-deça de celui obtenu à partir des analyses statiques avec les forces latérales spécifiées par le CNBC. Il a aussi été trouvé qu'il est subtantiellement plus bas pour des CSWs élevés comparés à des CSWs délévation moyenne à basse, et décroît légèrement seulement lorsque le degré de couplage s'accroît à l'intérieur de l'intervalle considéré dans cette étude. Il a aussi été le plus grand pour des enregistrements sismiques avec des rapports PGA/PGV bas. Les rotations plastiques à la rotule de même que les rotations plastiques à la rotule accumulées, en général, diminuent lorsque le nombre d'étages augmente. Le facteur de ductilité en déplacement maximal reste sous la valeur de 4,0 specifiée par le CNBC pour des CSWs ductiles. L'influence du degré de couplage sur le facteur de ductilité en déplacement ductile maximale a été trouvé comme étant négligible. Aussi, le facteur de ductilité en déplacement maximal décroît lorsque lorsque le nombre d'étages s'accroît. Le facteur de ductilité rotationnelle maximal dans le couplage des poutres décroît lorsque le nombre d'étages s'accroît, et a été en géneral moindre que la limite pratique acceptée de 10, sauf pour quelques CSWs courts.Mots clés : murs de refend, béton armé, sismique, degrée de couplage, contenu de fréquence, mouvement inter-étages, déformation plastique à la rotule, ductile.[Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
7. Seismic screening of buildings based on the 2010 National Building Code of Canada1.
- Author
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Saatcioglu, M., Shooshtari, M., and Foo, S.
- Subjects
BUILDINGS ,EARTHQUAKE damage ,CONSTRUCTION & the environment ,EARTHQUAKES ,EARTHQUAKE hazard analysis ,DUCTILITY ,COMPUTER simulation of seismic response - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2013
- Full Text
- View/download PDF
8. Performance of Type D and Type LD steel plate walls.
- Author
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Bhowmick, Anjan K., Grondin, Gilbert Y., and Driver, Robert G.
- Subjects
FINITE element method ,STRUCTURAL plates ,STRUCTURAL steel ,EARTHQUAKE zones ,DUCTILITY ,STEEL - Abstract
Copyright of Canadian Journal of Civil Engineering is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
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