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Creep behavior of concrete elements strengthened with NSM CFRP laminate strips ...
Sena-Cruz, José; Silva, Patrícia; Fernandes, Pedro Miguel Gomes; Azenha, Miguel; Barros, Joaquim A. O.; Sousa, Christoph; Castro, FernandoThe present work intends to contribute for the knowledge on the long-term deformational performance of concrete structures strengthened with the near-surface mounted (NSM) technique. For that purpose a wide experimental program has been initiated using beam pullout and slab specimens submitted to sustained loads under the following environmental conditions: (i) 20ºC temperature and 55% relative humidity; (ii) i...
Creep behavior of RC slabs strengthened NSM CFRP laminate strips under differen...
Sena-Cruz, José; Silva, Patrícia; Fernandes, Pedro Miguel Gomes; Azenha, Miguel; Barros, Joaquim A. O.; Sousa, Christoph; Teixeira, Tiago André NunesWith the aim of analyzing the long-term deformational performance of concrete elements flexurally strengthened with the near-surface mounted (NSM) technique, an experimental program has been launched using slab specimens submitted to sustained loads under the following environmental conditions: (i) 20ºC temperature and 55% relative humidity; (ii) immersed in water tank at 20ºC with 0% of chlorides; (iii) immers...
Flexural and shear behaviour of precast sandwich slabs comprising thin walled s...
Sousa, Christoph; Barros, Joaquim A. O.; Azenha, Miguel; Lameiras, RodrigoPublicado em "Rheology and processing of construction materials", ISBN 978-2-35158-137-7 ; Insulated sandwich panels are often composed of external concrete layers, mechanically connected through metallic elements, such as trusses. Due to their high thermal conductivity, metallic connectors tend to cause thermal bridges on the building envelope. In view of this problem, an innovative solution for sandwich slab...
Abordagem multi-física ao comportamento em serviço das estruturas de betão : mo...
Azenha, Miguel; Granja, José; Sousa, Christoph; Vieira, Margarida Coelho; Barros, Joaquim A. O.; Faria, Rui Manuel Carvalho Marques deNo âmbito do projeto de investigação denominado SeLCo – “Comportamento em serviço de estruturas de betão: uma abordagem multi-física das tensões autoinduzidas” – está a ser realizado um conjunto de trabalhos conducentes ao estabelecimento de abordagens de simulação higro-mecânica para estudo do carácter não uniforme das tensões associadas à retração de secagem em estruturas de betão armado. De facto, a seca...
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