Encontrados 8 documentos, a visualizar página 1 de 1
Comportamento semi-rígido de ligações tradicionais de madeira
Branco, J. M.; Cruz, P. J. S.; Piazza, M.; Varum, H.Apresentam-se os principais resultados de uma campanha experimental sobre ligações tradicionais de madeira. Através de ensaios monotónicos e cíclicos, analisaram-se ligações originais (não reforçadas) e estudaram-se três soluções típicas de reforço, nomeadamente, soluções com recurso a: braçadeira, esquadro e varões. Com base nestes resultados experimentais foi implementado e calibrado um modelo simplificado pa...
Field load tests on a Queen-post timber truss
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.In-situ cyclic tests on a Portuguese Queen-post timber truss were performed. The main goal of the tests was to evaluate the overall behaviour of the timber truss under symmetric and nonsymmetric loading. Moreover, the influence of the number and location of point loads, without and with eccentricity relatively to joints, was assessed. The carrying tests were preceded by a visual inspection and non-destructive e...
Comportamento semi-rígido de ligações tradicionais de madeira
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.Apresentam-se os principais resultados de uma campanha experimental sobre ligações tradicionais de madeira. Através de ensaios monotónicos e cíclicos, analisaram-se ligações originais (não reforçadas) e estudaram-se três soluções típicas de reforço, nomeadamente, soluções com recurso a: braçadeira, esquadro e varões. Com base nestes resultados experimentais foi implementado e calibrado um modelo simplificado pa...
Field tests of a timber queen-post truss and numerical analysis
Branco, Jorge M.; Cruz, Paulo J. S.; Piazza, M.; Varum, HumbertoIn-situ cyclic tests on an existing traditional timber truss were performed. The main goal of the tests was to evaluate the overall behavior of the timber truss under symmetric and non-symmetric loading. Moreover, the influence of the location of point loads application, without and with eccentricity relatively to joints, was assessed. The carrying tests were preceded by a visual and non-destructive inspection ...
Modelling of timber joints in traditional structures
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.Original unstrengthened timber connections and the effects of different strengthening techniques have been evaluated experimentally with tests on full-scale birdsmouth joints. Experimental results show that structural response of traditional timber connections under cyclic loading cannot be represented by common constraint models, like perfect hinges or rigid joints, but should be using semi-rigid and friction ...
Behaviour of traditional Portuguese timber roof structures
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.The aim of this paper is to present the results of a structural analysis of common trusses traditionally used in roof construction in Portugal. The study includes the results of a preliminary survey intending to assess the geometry, materials and on site pathologies, as well as a twodimensional linear elastic static and dynamic analysis. The trusses behaviour under symmetric and non-symmetric loads, the king po...
Experimental analysis of original and strengthened traditional timber connections
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.Tests on full-scale unstrengthened connections were performed under monotonic and cyclic loading. Attention has been principally focused on the birdsmouth joint, because of its common use in practice. Different strengthening solutions with metal elements have been evaluated.
Strengthening techniques of Portuguese traditional timber connections
Branco, J.; Cruz, P.; Piazza, M.; Varum, H.Different strengthening solutions with metal elements have been experimentally evaluated with tests on full-scale connections. Attention has been focused on the birdsmouth joints, due to its common use in practice. Even if unstrengthened, these types of connections reveal significant moment resistance. Experimental results show that structural response of birdsmouth connections under cyclic loading cannot be re...
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