DISTANCIAS A LOS EXTREMOS EN CONEXIONES PERNADAS DE MADERA
DISTANCIAS A LOS EXTREMOS EN CONEXIONES PERNADAS DE MADERA
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright statement
The authors exclusively assign to the Universidad EIA, with the power to assign to third parties, all the exploitation rights that derive from the works that are accepted for publication in the Revista EIA, as well as in any product derived from it and, in in particular, those of reproduction, distribution, public communication (including interactive making available) and transformation (including adaptation, modification and, where appropriate, translation), for all types of exploitation (by way of example and not limitation : in paper, electronic, online, computer or audiovisual format, as well as in any other format, even for promotional or advertising purposes and / or for the production of derivative products), for a worldwide territorial scope and for the entire duration of the rights provided for in the current published text of the Intellectual Property Law. This assignment will be made by the authors without the right to any type of remuneration or compensation.
Consequently, the author may not publish or disseminate the works that are selected for publication in the Revista EIA, neither totally nor partially, nor authorize their publication to third parties, without the prior express authorization, requested and granted in writing, from the Univeridad EIA.
Show authors biography
En este artículo se estudia la influencia de las distancias a los extremos en la aparición de concentraciones de tensiones
en las conexiones pernadas de madera. La importancia de la anisotropía y de las propiedades elásticas de la madera en las distribuciones de tensiones es también analizada. Se presenta un modelo teórico basado en el método de las funciones complejas que permite calcular las tensiones en una unión de madera. Se muestran también las distancias recomendadas por diversos códigos para conexiones pernadas de madera cargadas en tracción paralela a las fibras. Se comparan las concentraciones de tensiones en tracción perpendicular a las fibras para algunas maderas blandas y duras. Las distancias a los extremos reducidas modifican la magnitud de las concentraciones de tensiones. Analíticamente, se evidencia que el comportamiento de las conexiones pernadas cuando se usan distancias a los extremos adecuadas es plástico.
Abstract: This paper examines the influence of the end distances on the occurrence of stress concentrations in timber bolted joints. The effect of the anisotropic character of the wood on the stress distributions was also analyzed. The use of a theoretical model based on the method of the complex functions to calculate the stresses in a timber joint is presented. Minimum edge and end distances as identified in various design codes for timber bolted joints loaded parallel-to-grain are shown. Perpendicular-to-grain tensile stress concentrations for some softwoods and hardwoods are presented. Reducing the end distance does influence the magnitude of the tensile stress concentrations. It is established analytically that when adequate distances are used at the sides of the bolted timber joint its behavior is explicitly ductile.
Sumário: Neste artigo estuda-se a influência das distâncias aos extremos na aparição de concentrações de tensões na conexões pernadas de madeira. A importância da anisotropia e das propriedades elásticas da madeira nas distribuições de tensões é também analisada. Apresenta-se um modelo teórico baseado no método das funções complexas que permite calcular as tensões numa união de madeira. Mostra-se também as distâncias recomendadas por diversos códigos para conexões pernadas de madeira carregadas em tração paralela às fibras. Comparar-se as concentrações de tensões em tração perpendicular às fibras para algumas madeiras brandas e duras. As distâncias aos extremos reduzidas modificam a magnitude das concentrações de tensões. De maneira analítica, evidencia-se que o comportamento das conexões pernadas quando se usam distâncias aos extremos adequadas é plástico.
Article visits 226 | PDF visits 146
