期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 76, 期 -, 页码 34-50出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2014.11.022
关键词
Timber frame wall; Cyclic test; NSM; Stiffness; Energy dissipation; Damping
资金
- Portuguese Science and Technology Foundation (FCT) [SFRH/BD/61908/2009]
- REAB-EPA [PTDC/ECM/100168/2008]
- Fundação para a Ciência e a Tecnologia [PTDC/ECM/100168/2008, SFRH/BD/61908/2009] Funding Source: FCT
Timber frame buildings are well known as an efficient seismic resistant structure popular all over the world not only due to their seismic performance, but also to their low cost and the strength they offer. These constructions still exist today and it is important to be able to preserve them, so a better knowledge on their behaviour is sought. Furthermore, historic technologies could be used even in modern constructions to build seismic resistant buildings using more natural materials with lesser costs. A great rehabilitation effort is being carried out on this type of buildings, as their neglect has led to decay or their change in use and alterations to the structure has led to the need to retrofit such buildings; only recently studies on their behaviour have become available and only a few of them address the issue of possible strengthening techniques for this kind of walls. In this scope, an innovative retrofitting technique (near surface mounted steel flat bars) is proposed and validated on traditional timber frame walls based on an extensive experimental program. The results of the static cyclic tests on distinct wall typologies retrofitted with the NSM technique are herein presented and discussed in detail. The main features on deformation, lateral stiffness, lateral resistance and seismic performance indexes are analysed. (C) 2014 Elsevier Ltd. All rights reserved.
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