João Paulo Correia Rodrigues | Universidade de Coimbra (original) (raw)
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Papers by João Paulo Correia Rodrigues
In this paper are presented the results of natural fire tests and numerical simulations using the... more In this paper are presented the results of natural fire tests and numerical simulations using the Fire Dynamics Simulator (FDS) and analytical simulations using the methods of EN 1991-1.2 (2010). The main goal of the investigation is the validation of the values of fire safety regulations on distance between openings corresponding to successive floors in a façade and the effect of dimensions of balconies in the external fire spread into upper floors. It is intended to quantify and measure the height and width of flames projected through the windows and to measure the indoor and outdoor temperatures. The tests were performed in a compartment that was intended to represent a small office with two opposing openings, a door and a window. The distance between the openings in the successive floors was 1.10 m. The test 1 was carried out without any balcony above the opening and tests 2 and 3 had a balcony with different dimensions in length.
This paper presents the results of an investigation on the balcony effect of the fire spread, via... more This paper presents the results of an investigation on the balcony effect of the fire spread, via external windows, into upper floors. Several natural fire tests were carried out in compartment that intended to represent a small office and the fire development inside and
its spread to the upper floors was analysed. They were tested three configurations of
balcony above the exterior window of the compartment; no balcony, a balcony of the
same width of the window and a balcony one meter wider for each side of the window. These natural fire tests were also numerically simulated with the Fire Dynamics Simulator (FDS) software and analytically simulated with the simplified calculation
methods of annex A and B of EN1991-1.2. The results of the experimental, numerical and analytical tests were compared with each other. The constructive solution for limiting fire
spread into upper floors that proved to be more effective was the one with the balcony one meter wider than the window.
Em 2009, Kim et al., desenvolveram um betão reforçado com fibras de Politereftalato de etileno (P... more Em 2009, Kim et al., desenvolveram um betão reforçado com fibras de Politereftalato de etileno (PET) com o intuito de o comparar com um betão com fibras de PP (Polipropileno). As quantidades de fibras de PET usadas neste tipo de betão foram as seguintes: 0,5%, 0,75%, e 1,0% por m3 de betão. As mesmas quantidades de fibras de PP foram usadas na fabricação dos outros betões: 0,5%, 0,75%, e 1,0% por m3 de betão. Em simultâneo foi fabricado um betão de referência, em tudo semelhante aos anteriores mas sem qualquer tipo de adição de fibras.
In this paper are presented the results of natural fire tests and numerical simulations using the... more In this paper are presented the results of natural fire tests and numerical simulations using the Fire Dynamics Simulator (FDS) and analytical simulations using the methods of EN 1991-1.2 (2010). The main goal of the investigation is the validation of the values of fire safety regulations on distance between openings corresponding to successive floors in a façade and the effect of dimensions of balconies in the external fire spread into upper floors. It is intended to quantify and measure the height and width of flames projected through the windows and to measure the indoor and outdoor temperatures. The tests were performed in a compartment that was intended to represent a small office with two opposing openings, a door and a window. The distance between the openings in the successive floors was 1.10 m. The test 1 was carried out without any balcony above the opening and tests 2 and 3 had a balcony with different dimensions in length.
This paper presents the results of an investigation on the balcony effect of the fire spread, via... more This paper presents the results of an investigation on the balcony effect of the fire spread, via external windows, into upper floors. Several natural fire tests were carried out in compartment that intended to represent a small office and the fire development inside and
its spread to the upper floors was analysed. They were tested three configurations of
balcony above the exterior window of the compartment; no balcony, a balcony of the
same width of the window and a balcony one meter wider for each side of the window. These natural fire tests were also numerically simulated with the Fire Dynamics Simulator (FDS) software and analytically simulated with the simplified calculation
methods of annex A and B of EN1991-1.2. The results of the experimental, numerical and analytical tests were compared with each other. The constructive solution for limiting fire
spread into upper floors that proved to be more effective was the one with the balcony one meter wider than the window.
Em 2009, Kim et al., desenvolveram um betão reforçado com fibras de Politereftalato de etileno (P... more Em 2009, Kim et al., desenvolveram um betão reforçado com fibras de Politereftalato de etileno (PET) com o intuito de o comparar com um betão com fibras de PP (Polipropileno). As quantidades de fibras de PET usadas neste tipo de betão foram as seguintes: 0,5%, 0,75%, e 1,0% por m3 de betão. As mesmas quantidades de fibras de PP foram usadas na fabricação dos outros betões: 0,5%, 0,75%, e 1,0% por m3 de betão. Em simultâneo foi fabricado um betão de referência, em tudo semelhante aos anteriores mas sem qualquer tipo de adição de fibras.