Fire Resistance
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. An investigation on graphene and nanoclay effects on hybrid nanocomposites post fire dynamic behavior
This paper deals with the post fire behavior of hybrid nanocomposites under dynamic loadings. A series of tests were performed to investigate how nanoparticles (i.e. nanoclay and graphene nanosheets) affect the post-fire overall composite behavior. Carbon fiber/epoxy-nanoclay and carbon fiber/epoxy-graphene nanosheets were manufactured. The nanoparticles emp
Materials Research. Publicado em: 2010-06
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14. Colunas mistas esbeltas de aço preenchidas com concreto de alta resistencia em temperatura ambiente e em situação de incendio / Mixed slender steel columns filled with high strenght concrete in room temperature and fire situation
In this work, it was investigated in laboratory the effect of fire in slender steel columns unfilled and filled with high strength concrete submitted to three different levels of axial load (30%, 50% and 70%), which is the relation between the axial load to be applied in fire situation and the ultimate load obtained in the column test to room temperature. So
Publicado em: 2009
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15. Flexão normal composta em seções retangulares de concreto armado em situação de incêndio
This work presents a general structural design method for reinforced concrete elements subjected to fire according to the Brazilian Standard ABNT NBR 15200:2004. The developed method evaluates reinforced concrete rectangular cross-sections subjected to compound flexure for different fire resistance required times specified by the Brazilian Standard ABNT NBR
Publicado em: 2009
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16. ESTUDO TEÓRICO EXPERIMENTAL DAS PROPRIEDADES DINÂMICAS DO BAMBU / THEORETICAL AND EXPERIMENTAL ANALYSIS OF DYNAMIC PROPERTIES OF BAMBOO
The studies carried on during the last three decades with respect to bamboo have been directed to the physical, mechanic and microstructural characterization of different species, under static load. The experience has shown that the houses and buildings constructed using bamboo as structural element have had good resistance to earthquakes. This work is one o
Publicado em: 2009
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17. Numerical Simulation of Accidental Explosions in Offshore Production Plant
The production of oil and gas is an inherently hazardous task. Therefore it is crucial to provide reliable estimates of the risks involved. The major contributors to the risk level of an offshore installation, for example, arise from accidents involving explosion and fire. Computational Fluid Dynamics (CFD) can be a powerful tool to help with the calculation
Publicado em: 2009
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18. Estudo da adição do resíduo proveniente da extração de minério de ferro em argilas do Rio Grande do Norte
The mining industry is responsible for the generation of waste from their natural process of extraction. The mining impacts in urban areas are of special importance due to the high urban occupation, which are exacerbated due to the proximity of the mined areas and populated areas. Some solutions to wastedisposal have the potential to significantly reduce the
Publicado em: 2009
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19. Coexistir na fronteira: notas de um antropólogo sobre a trajetória de um grupo de jovens em meio a uma guerra entre a comunidade e o tráfico de drogas
On behalf of an anthropology that looks for to analyze the can-resistance relationships starting from the coexistence among the several components inside of different urban territories and that he seeks to do to emerge the several present violence forms in the daily relationships is that I intended to accomplish this research. In my entitled research of Mast
Publicado em: 2009
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20. Experimental study about the fire effect in short composite column of steel and concrete / Estudo experimental do efeito do fogo em pilares mistos de aço e concreto
The use of circular hollow steel filled with concrete as columns are of great importance in the structural area, because it allows steel tube and concrete working together, providing a greater capacity resistant and a longer fire exposure, in relation to the same materials analyzed separately. This work will provide technical information for understanding th
Publicado em: 2008
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21. On the behaviour of single-span steel beams under uniform heating
Structures’ load resistance is reduced when subject to high temperatures in fire. Nevertheless, it is not enough to take into account strength and modulus of elasticity reduction. One must know with great accuracy the behaviour of the structures including the realistic boundary conditions at high temperatures, in order to determine for safe and of low cost
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-03
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22. Evaluation the fire resistance of the piping manufactured with vinyls compounds used in sprinklers systems. / Avaliação da resistência ao fogo de tubulações de compostos vinílicos empregadas em sistemas prediais de chuveiros automáticos para extinção de incêndio.
This work establishes standards to evaluate the fire resistance of the piping manufactured with vinyl compounds, with different chlorine contents, for buildings sprinklers systems, verifying the relation amongst the results obtained with pressured small sections of piping and submitted to a temperature rise, and the results obtained from the real scale tests
Publicado em: 2007
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23. Sobre o dimensionamento do revestimento contra fogo de estruturas de aço. / Determination of the fire protective material in steel structures.
This present work shows some methodologies to determine the thickness of the fire protective material in steel structures in a fire situation. It shows analytical methods based on actual standards and results of experimental analysis by international and national laboratories. The application of the program Super Temp Calc (STC) is detailed, by thermal analy
Publicado em: 2007
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24. Use of a biofuel obtained from the fast pyrolysis of sugarcane trash in an Otto engine / Uso de biocombustivel da pirolise rapida da palha de cana em um motor de ciclo Otto
In September 2002 the state of São Paulo promulgated the Law Nº 11241 by which was codified the gradual elimination of fire as a method to remove trash from the sugar-cane fields before harvestig. Large amounts of sugar-cane trash with an important energy potential will be available as a result of this law. New technologies to harvest and process this biom
Publicado em: 2007