21 documents found, page 1 of 3
Fire resistance of austenitic stainless steel beams with rectangular hollow sec...
Lopes, Nuno; Arrais, Flávio; Real, Paulo Vila; Alves, Matheus Henrique; Mesquita, L.M.R.; Piloto, P.A.G.; Pinho-da-Cruz, JoaquimThis paper presents a study on the structural behaviour of stainless steel profiles under fire conditions. An experimental campaign of three-point bending tests on rectangular hollow section beams of the grade 1.4301 (also known as 304) were conducted, considering both steady-state and transient state conditions. Prior to those tests, the mechanical characterization of the stainless steel was investigated. The ...
Fire behaviour of mortars with portland cement and residual diatomaceous earth
Magalhães, Leandro; Zolin, Renan Calvo; Alves, Matheus Henrique; Barreira, Luísa; Ferreira, Débora; Luso, Eduarda; Mesquita, L.M.R.; Óscar, LimaThe high pollution levels produced by the manufacturing of conventional Portland cement have motivated several studies in an attempt to modernize this process with alternative binders and the conscious use of natural resources. The correct treatment of residues has become a matter of great concern. The project “BacchusTech” aims to reuse diatomaceous earth from wine filtrations, introducing them into the compos...
Fire behaviour of wood and wood-based composite panels towards the development ...
Alves, Matheus Henrique; Mesquita, L.M.R.; Piloto, P.A.G.; Ferreira, Débora; Barreira, Luísa; Mofreita, FilipeThe use of sustainable natural resources has been practiced by the construction sector as a means to reduce energy demand and increase the efficiency of buildings. In this sense, wood and wood-based materials are alternative and renewable material sources that can be effectively used in building elements, such as doors and partition walls, which are required to provide adequate thermal, acoustic, and fire resis...
Fire behaviour of mortars with portland cement and residual diatomaceous earth
Magalhães, Leandro; Ferreira, Débora; Zolin, Renan Calvo; Alves, Matheus Henrique; Barreira, Luísa; Luso, Eduarda; Mesquita, L.M.R.; Óscar, LimaThe high pollution levels produced by the manufacturing of conventional Portland cement have motivated several studies in an attempt to modernize this process with alternative binders and the conscious use of natural resources. The correct treatment of residues has become a matter of great concern. The project “BacchusTech” aims to reuse diatomaceous earth from wine filtrations, introducing them into the compos...
Thermomechanical behaviour of bonding joints of wood and wood-based panels at r...
Alves, Matheus Henrique; Andrade, Djems; Mesquita, L.M.R.; Barreira, Luísa; Manhique, Jocyla; Santamaria-Echart, Arantzazu; Barreiro, M.F.Wood is a natural material traditionally used in the construction industry. In recent decades, developments in scientific research have turned wood into a high-tech construction resource. Increased interest in bonded joints in wood construction is due to the advantages of adhesive technology compared to traditional mechanical joining techniques. It is very important to understand the influence of elevated tempe...
Using wood and wood-based materials to develop fire-resistant doors
Alves, Matheus Henrique; Mesquita, L.M.R.; Piloto, P.A.G.; Barreira, LuísaAs prescrições relativas à resistência ao fogo no setor da construção civil têm se tornado mais exigentes e, no caso de construções à base de madeira, o cumprimento dos critérios de performance é ainda um processo de difícil execução. O uso da madeira e derivados de madeira na construção civil é também uma importante estratégia na redução do consumo de energia em edifícios. O objetivo deste trabalho é avaliar e...
Load bearing capacity of stainless steel beams at elevated temperatures
Alves, Matheus Henrique; Mesquita, L.M.M.; Piloto, P.A.G.; Lopes, Nuno; Arrais, Flávio; Vila Real, Paulo M.M.; Pinho-da-Cruz, JoaquimTo analyse the load bearing capacity of stainless steel (SS) members at elevated temperatures, a set of three-point bending tests was conducted on RHS 150x100x5 beams with SS grade 1.4301. The numerical modelling of these tests has been performed at elevated temperatures, achieving close approximation to observed experimental results. The load bearing capacity difference between the numerical results and the ex...
Resistência mecânica de elementos em aço inoxidável a temperaturas elevadas
Lopes, Nuno; Arrais, Flávio; Vila Real, Paulo M.M.; Alves, Matheus Henrique; Mesquita, L.M.R.; Piloto, P.A.G.O presente artigo apresenta um estudo experimental sobre a caracterização mecânica do aço inoxidável austenítico 1.4301, à temperatura normal e a altas temperaturas. As leis constitutivas obtidas por ensaios à tração são comparadas com as preconizadas no Eurocódigo 3 (EC3), cujos respetivos modelos materiais foram recentemente sujeitos a propostas de alteração, necessitando ainda de completa validação. Por fim ...
Fire behaviour of non-load bearing double stud cold-formed steel frame walls
Alves, Matheus Henrique; Piloto, P.A.G.; Aiko Kimura, Erica F.; Constantini, Giada; Ianni, Alessandro; Meda, AlbertoThis work investigates the behaviour of Double stud Light Steel Frame (LSF) walls under ISO834 standard fire through a series of experimental tests. The walls were covered on both sides with one or two fire-resistant gypsum plasterboards (Type F), and the cavity of the steel frame was either empty, partially or fully insulated with ceramic fibre. The fire resistance of the assemblies is improved due to the exis...
Thermomechanical behaviour of bonded joints of wood and wood-based panels at ro...
Andrade, Djems; Alves, Matheus Henrique; Mesquita, L.M.R.; Barreira, Luísa; Manhique, Jocyla; Santamaria-Echart, Arantzazu; Barreiro, FilomenaWood is a natural material traditionally used in the construction industry. In recent decades, developments in scientific research have turned wood into a high-tech construction material. Increased interest in bonded joints in wood construction is due to the advantages of adhesive technology compared to traditional mechanical joining techniques. It is very important to understand the influence of elevated tempe...