文章基本信息

标题：Computation of Displacements for Wood Beams with Hybrid Areas
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作者：Alexandru Secu ; Ana-Raluca Roşu
期刊名称：Bulletin of the Polytechnic Institute of Jassy, Constructions, Architechture Section
印刷版ISSN：1224-3884
电子版ISSN：2068-4762
出版年度：2015
卷号：LXV
期号：4
页码：97-106
出版社：Gheorghe Asachi Technical University of Jassy
摘要：The major disadvantage of wood is the coefficient (modulus) of elasticity. One way to mitigate this disadvantage is hybridisation of some areas from the structural elements through the use of strips, made of composite multi-layers. The effectiveness of this method is measured by the difference between the displacements of the un-hybridised elements and those who are hybridised. Finding the displacements for elements with hybrid zones, elements with by-steps inertia moments, is the subject of this paper. The analysed elements are wood beams belonging to a spatial framework (SF) with continuity in nodes. Three cases are highlighted by the upgrade of beams through hybridisation over large areas with multi-layers made up of composite lamellas with unidirectional reinforcement. For the three cases, we determine the expressions of the displacements at the middle of the opening. Expressions of displacements are a quick pre-dimensioning of elements from a timber spatial framework with continuity in nodes and wood beams with hybrid areas.
关键词：hybridization; strips; wood beams; timber spatial framework with continuity in nodes; composites; structural elements