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Tecnura
Print version ISSN 0123-921X
Abstract
LAMUS BAEZ, Fabián Augusto; PLAZAS BERNAL, Mayra Alejandra and LUNA TAMAYO, Patricia. Bolted join strength under parallel to grain double shear in guadua angustifolia structures. Tecnura [online]. 2015, vol.19, n.43, pp.52-62. ISSN 0123-921X. https://doi.org/10.14483/udistrital.jour.tecnura.2015.1.a03.
In a bolted joint structure using Guadua An-gustifolia Kunth as a main support material, the strength under double shear parallel to the grain could be influenced by an extensive list of parameters including parallel to grain crushing strength, parallel to grain shear strength of the wall and the contact area between elements in the joint. This paper presents experimental results for double shear strength parallel to grain, when the element is loaded under compression, for different culm diameters. Moreover, we studied the influence of the bolt diameter and culm thickness in the joint resistance. The tests were conducted on specimens of Guadua angustifolia with variable diameters between seven and fourteen centimeter where bolts of 3/8, 1/2 and 3/4" diameter were used. The Guadua tested came from the outskirts of Armenia in Colombia. It was found that the the major amount of the double shear strength parallel to grain in the joint is provided by parallel to fiber crushing resistance of the Guadua.
Keywords : Building materials; Guadua angustifolia; bolted joint; double shear.