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¨Comportamiento y diseño de la madera en situación de incendio¨

Authors: Larrúa Pardo, Yisel.; Herrera Pupo, Gerson.; Larrúa Quevedo, Rafael.; Fuster Victoria, Irenia.; González González, Ohilda.; Sanchez Angel Bello, Yanai.;

¨Comportamiento y diseño de la madera en situación de incendio¨

Abstract

En el trabajo se exponen los aspectos generales del comportamiento y el diseño estructural en situación de incendio de la madera. La madera es un material con gran capacidad de aislamiento térmico lo que supone una importante ventaja en caso de incendio. Su baja conductividad térmica hace que la temperatura disminuya hacia el interior. Además, la carbonización superficial que se produce impide por una parte la salida de gases y por otra la penetración del calor, por lo que frena el avance de la combustión. De esta forma el interior de la pieza se mantiene frío y con sus propiedades físicas y mecánicas inalteradas. La sección transversal residual corresponde a la superficie de madera no carbonizada remanente luego de transcurrido un determinado tiempo desde el inicio del incendio. Por otra parte, en las normativas cubanas no se incluyen consideraciones para el diseño de las estructuras de madera en situación de incendio. En tal sentido, debe tomarse en cuenta que la norma internacional más completa y actualizada es EN 1995 1-2 (2004), norma específica dedicada al tema. Sin embargo, la propuesta de norma cubana de 2002 es afín al formato norteamericano, que en su versión más actual ANSI/AWC NDS (2015), es muy escueta en el tratamiento del diseño en situación de incendio, y el método propuesto sigue el enfoque de ASD. Entonces, se impone aprovechar las bondades de la norma europea y evitar eventuales incoherencias de formato que puedan suscitarse.

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This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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