DE/NCE: Recent submissions

  • A property rights-based analysis of the illegal logging for fuelwood in Kosovo 
    Bouriaud, L.; Nichiforel , L.; Ribeiro Nunes, L. M.; Pereira, H.; Bajraktari, A. (Elsevier Ltd., 2014-05)
    The increased demand for fuelwood may have the side-effect of unsustainable use of forest resource. The case of Kosovo fuelwood production is of a peculiar relevance to studying the drivers of the unsustainable patterns ...
  • Connection for round wood timber members using multiple glued-in rods 
    Dias, A.; Morgado, T.; Negrão, J.; Saporiti Machado, J. (2014-08)
    This paper presents a research work undertaken, whose main purpose was the development and validation of an innovative connection system for round wood members. The connection proposed is based on axially glued-in rods. A ...
  • Cryptotermes brevis (Isoptera: Kalotermitidae) in the Azores: Lessons After 2 yr of Monitoring in the Archipelago 
    Borges, P.; Guerreiro, O.; Ferreira, M.; Borges , A.; Ferreira , F.; Bicudo , N.; Ribeiro Nunes, L. M.; Marcos, R.; Arroz, A.; Scheffrahn, R.; Myles, T. (Oxford University Press em parceria com o Entomological Society of America, 2014-11)
    The dispersal flights of West Indian drywood termite, Cryptotermes brevis (Walker) (Isoptera: Kalotermitidae) were surveyed in the major cities of Azores. The sampling device used to estimate termite density consisted of ...
  • Building vulnerabilities to fires at the wildland urban interface 
    Laranjeira, J.; Cruz, H. (2014-11)
    Fires on the Wildland Urban Interface (WUI) have caused significant loss of life and colossal property and natural environment damages in numerous countries around the world. The solutions to mitigate this fire problem ...
  • Fire resistance tests on beam-to-column shear connections 
    Palma, P.; Frangi, A.; Hugi, E.; Cachim, P.; Cruz, H. (2014-06)
    This paper presents the results of an extensive experimental campaign on the fire behaviour of beam-to-column timber connections loaded perpendicular-to-the-grain. The experimental campaign addressed the fire behaviour of ...
  • Carga crítica de torres de aço constituídas por troços rectos com diferentes diâmetros 
    Baptista, A. M. (CBCA - Centro Brasileiro da Construção em Aço, 2014-04)
    O presente trabalho propõe duas soluções analíticas diferentes para o cálculo da carga crítica elástica de torres de telecomunicações em aço, constituídas por troços rectos de secção circular oca com diâmetros diferentes, ...
  • Comparison of the bending resistance efficiency of international series of hot-rolled steel I-sections 
    Baptista, A. M. (cticm - Centre Technique Industriel de la Construction Métallique, 2014-11)
    This paper presents an assessment of the bending resistance efficiency offered by steel I-sections under interaction of axial forces and bending moments. This property is related to the largest allowable bending moment ...
  • Madeira: um mundo de possiblilidades 
    Cruz, H. (Grupo Publindústria,, 2014-01)
    Quando, no início de 2007, aceitei o desafio da Construção Magazine para uma colaboração regular na coluna “Estruturas de Madeira”, fi-lo com a esperança de contribuir, de algum modo, para a boa utilização da madeira na ...
  • Deteção no solo de alimento pelas térmitas subterrâneas Reticulitermes grassei (Clément, 1978) 
    Duarte, M. (2014-03)
    As térmitas subterrâneas estão entre os insetos mais abundantes, sendo também ecológica e economicamente importantes. No entanto, muitas dúvidas continuam a existir sobre a forma como se movimentam no solo e como procuram ...
  • Aniceto Rapozo’s cabinet at the Lisbon Academy of Sciences 
    Saporiti Machado, J.; Antunes, M. (Oxford University Press, 2014-03)
    From the end of the eighteenth until the beginning of the nineteenth century, wood samples were regularly sent to the Royal Army Arsenal in Lisbon for testing. The large number and variety of samples, as well as increasing ...
  • Life cycle assessment of thermally treated and untreated maritime pine boards: a Portuguese case study 
    Ferreira, J.; Esteves, B.; Ribeiro Nunes, L. M.; Domingos, I. (2014-03)
    The main aim of this Life Cycle Assessment (LCA) study was to assess and compare the environmental impacts of thermally treated and untreated maritime pine boards to be used as cladding. All processes were considered from ...
  • Treatment variation along the board of furfurylated sapwood and heartwood 
    Esteves, B.; Viana, H.; Ferreira, J.; Ribeiro Nunes, L. M.; Domingos, I. (2014-03)
    Wood modification by furfurylation depends on impregnation, so only some species can be treated and even so generally only sapwood samples can be used. Another question is that if the impregnation is not even the properties ...
  • Commercialisation and production of modified wood in Portugal 
    Esteves, B.; Carmo, J.; Ribeiro Nunes, L. M. (2014-03)
    This work intended to present the state of commercialisation and production of modified wood in Portugal and also show how modified wood is being used in Portugal. There are mainly four companies selling modified wood ...
  • Embedding and withdrawal resistance of screws on thermal treated wood 
    Cruz, H.; Rodrigues, S. M.; Gomes, A. (2014-03)
    Tests were conducted at LNEC to assess withdrawal resistance and embedding strength of commercial heat treated wood (ThermoWood®) Thermo-D pine with various types of screws, to predict the short-term performance of screwed ...
  • Utilização de derivados de madeira no reforço de paredes de tabique 
    Fonseca, I.; Feio, A.; Saporiti Machado, J. (2014-03)
    As paredes de tabique constituem uma forma tradicional de construção de paredes, apresentando uma função não estrutural de compartimentação interna dos espaços. A má qualidade da construção ou processos de deterioração da ...
  • Variation of wood density and mechanical properties of blackwood (Acacia melanoxylon R. Br.) 
    Saporiti Machado, J.; Louzada, J.; Santos, A.; Ribeiro Nunes, L. M.; Anjos, O.; Rodrigues, J.; Simões, R.; Pereira, H. (Elsevier, 2014)
    The variation of wood density and mechanical properties with site, tree and within tree (longitudinal and radial) were studied for blackwood (Acacia melanoxylon R. Br.) grown in four sites in Portugal. Twenty trees were ...
  • Testing and modeling of a traditional timber mortise and tenon joint 
    Feio, A.; Lourenço, P.; Saporiti Machado, J. (2014)
    The structural safety and behaviour of traditional timber structures depends significantly on the performance of their connections. The behaviour of a traditional mortise and tenon timber joint is addressed using physical ...
  • Traditional methods of timber protection against bio-deterioration 
    Fevereiro , M.; Ribeiro Nunes, L. M.; Ferreira, J. (Green Lines Instituto para o Desenvolvimento Sustentável, 2014-03)
    Timber, as a construction material, has played an important role in the history of architecture and construction since is very beginning. Naturally, the concerns about its durability and resistance are equally old and have ...
  • Structural Connections for Small-Diameter Poles 
    Morgado, T.; Dias, A.; Saporiti Machado, J.; Negrão, J. (2013-11)
    In Portugal, given the large proportions of natural regeneration pine stands, a large amount of young trees must be removed from the forest, to assure the quality of mature trees and to decrease the risk of fire. With this ...
  • Casas de madeira - panorama nacional, certificação e homologação 
    Cruz, H. (Grupo Publindústria,, 2013-09)
    A madeira é um material com excelentes potencialidades técnicas e arquitetónicas e grande interesse do ponto de vista da construção sustentável, mas é igualmente um material particularmente sensível às condições de aplicação ...

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