Webinar NG_TPfib
No próximo dia 29 de junho, entre as 14:30 e as 15:45, realizar-se-á o webinar “NG_TPfib”, promovido pelas empresas CiviTest e Exporplás, que apresenta as principais conclusões obtidas no âmbito …
Comportamento pós-fendilhação de betão reforçado com fibras exposto a temperaturas elevadas
No presente trabalho executou-se um programa experimental para avaliar os efeitos da exposição a temperaturas elevadas no comportamento residual do betão reforçado com fibras (BRF). O programa experimental executado foi …
A multiscale model for optimizing the flexural capacity of FRC structural elements
In the present work, a multiscale model for fibre reinforced concrete (FRC) beams failing in bending is presented. At the microstructural level, the fibre is modelled as a one-dimensional continuum …
A model for optimizing hooked end steel fibre reinforcements in cracked cement composites
The addition of metallic fibres in concrete is a widely used technique to increase its resistance to crack opening, energy absorption capacity, and durability. The properties of the resulting composite …
Projeto e monitorização de fundação especial em betão reforçado com sistema híbrido
No âmbito do dimensionamento da fundação de uma estrutura com grande desenvolvimento, foi prevista a construção de um elemento com secção transversal tubular de parede delgada em betão com um …
Urban furniture in fiber reinforcemenet concrete with high durability
Within the scope of the “NG_TPfib” R&D project, Exporplás and CiviTest have, in the recent past, developed a new typology of polypropylene fibers for the production of urban furniture of …
Integrated model for predicting the flexural capacity of concrete elements reinforced with non-corrodible discrete reinforcements
Polypropylene fibres (PP) have been used mainly in non-structural applications for limiting crack width due to shrinkage effects of cement-based materials. Being insusceptible to corrosion, PP fibres can also be …
Analytical bond model for general type of reinforcements of finite embedment length in cracked cement based materials
In this work, a computational model for simulating the relevant mechanisms governing the pull-out of a discrete reinforcement embedded into cement based materials is described. The model accounts for the …
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