Detailed Numerical Micro-modelling of Masonry TRM Reinforcements

The need to safeguard and often restore the historical-architectural heritage has led over the years to the introduction of different types of structural reinforcements based on the use of fibres made of different materials capable of increasing the tensile strength of a given structural element. Such solutions are certainly valid in the case of seismic phenomena, while their behaviour in the case of another highly destructive phenomenon that can affect buildings is little investigated: fires. In the present paper, the behaviour of different types of reinforcements based on glass, carbon and basalt fibres, subjected to high temperatures was investigated. This work starts from some experimental data obtained through laboratory tests on suitably prepared specimens to build a numerical model capable of describing the evolution of the behaviour of these materials as temperature increases.