Resistencia al fuego y recubrimiento de pintura intumescente en pórtico de acero del Hospital El Carmen bloque 2A
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2026
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Universidad Católica Santo Toribio de Mogrovejo
Resumen
Se investigó mediante un diseño descriptivo correlacional la relación entre la pintura intumescente Hempacore One 43600 y la resistencia al fuego en un pórtico de acero del hospital “El Carmen” en Junín, Perú. La muestra estuvo constituida por el bloque 2 A del hospital, compuesto por columnas, vigas, correas de techo y arriostres. Se emplearon como instrumentos: Normativa Peruana E.20 para la asignación de cargas muertas y vivas, Eurocódigo 3 [1] para la combinación de cargas, los factores de forma y el diseño de cálculo (Software Diamonds) con el uso de métodos clásicos. Los resultados indican que existe una relación entre el espesor de la pintura intumescente y la resistencia al fuego bajo un problema térmico y al tiempo requerido para una curva ISO 834. Los edificios de acero en incendio normado tienen baja resistencia al fuego ante el problema térmico; el tipo de perfil y geometría tienden a tener pequeños niveles de espesor o ninguna pintura intumescente. Los edificios de acero en incendio normado que tienen resistencia al fuego según los tiempos requeridos; R 5, R 10 y R 15, también tienen niveles bajos o ninguna pintura intumescente. Esta pintura intumescente Hempacore One 43600 no guarda relación con las variables de tipo de acero, soldadura y la sección de caras expuestas de acero, pero sí guarda relación con las variables de espesor, conductividad térmica y capacidad calorífica. Los edificios de acero arriostrados presentan una capacidad para conservar la forma y prevenir el pandeo en caso de incendio. En el hospital “El Carmen”, el pórtico de acero presenta baja resistencia al fuego 11 a 15 bajo una curva de incendio ISO 834 sin revestimientos de pintura intumescente. Asimismo, la resistencia al fuego tampoco guarda relación con el número de caras expuestas en los perfiles expuestos al fuego. También se encontró que, en el pórtico de acero, al implementar (300 µm a 550 µm) Hempacore One 43600, presentó un nivel más alto de resistencia al fuego de 30 minutos. Por último, la resistencia al fuego del bloque 2 A ante el problema térmico se diseñó con niveles altos de temperatura crítica entre 561°C y 900°C, mientras que la resistencia al fuego fue dirigida al tiempo requerido de 22 en niveles óptimos para dicho estándar se estableció a 30.
A descriptive correlational design was used to investigate the relationship between Hempacore One 43600 intumescent paint and fire resistance in a steel portico at the El Carmen hospital in Junín, Peru. The sample consisted of block 2 A of the hospital, comprising columns, beams, roof purlins, and bracing. The following instruments were used: Peruvian Standard E.20 for the assignment of dead and live loads, “Eurocode 3” [1] for load combinations, shape factors, and design calculations (Diamonds software) using classical methods. The results indicate that there is a relationship between the thickness of the intumescent paint and fire resistance under thermal stress and the time required for an ISO 834 curve. Steel buildings in standard fires have low fire resistance to thermal problems; the type of profile and geometry tend to have low thickness levels or no intumescent paint. Steel buildings in standard fires that have fire resistance according to the required times (R 5, R 10, and R 15) also have low levels or no intumescent paint. This Hempacore One 43600 intumescent paint is not related to variables such as steel type, welding, and the section of exposed steel faces, but it is related to variables such as thickness, thermal conductivity, and heat capacity. Braced steel buildings can retain their shape and prevent buckling in the event of a fire. At El Carmen Hospital, the steel portico has low fire resistance (11 to 15) under an ISO 834 fire curve without intumescent paint coatings. Likewise, fire resistance is not related to the number of faces exposed in the profiles. It was also found that, in the steel portico, when Hempacore One 43600 (300 µm to 550 µm) was implemented, it presented a higher level of fire resistance of 30 minutes. Finally, the fire resistance of block 2 A to thermal stress was designed with high critical temperature levels between 561°C and 900°C, while the fire resistance was targeted at the required time of 22 at optimal levels for this standard, which was set at 30.
A descriptive correlational design was used to investigate the relationship between Hempacore One 43600 intumescent paint and fire resistance in a steel portico at the El Carmen hospital in Junín, Peru. The sample consisted of block 2 A of the hospital, comprising columns, beams, roof purlins, and bracing. The following instruments were used: Peruvian Standard E.20 for the assignment of dead and live loads, “Eurocode 3” [1] for load combinations, shape factors, and design calculations (Diamonds software) using classical methods. The results indicate that there is a relationship between the thickness of the intumescent paint and fire resistance under thermal stress and the time required for an ISO 834 curve. Steel buildings in standard fires have low fire resistance to thermal problems; the type of profile and geometry tend to have low thickness levels or no intumescent paint. Steel buildings in standard fires that have fire resistance according to the required times (R 5, R 10, and R 15) also have low levels or no intumescent paint. This Hempacore One 43600 intumescent paint is not related to variables such as steel type, welding, and the section of exposed steel faces, but it is related to variables such as thickness, thermal conductivity, and heat capacity. Braced steel buildings can retain their shape and prevent buckling in the event of a fire. At El Carmen Hospital, the steel portico has low fire resistance (11 to 15) under an ISO 834 fire curve without intumescent paint coatings. Likewise, fire resistance is not related to the number of faces exposed in the profiles. It was also found that, in the steel portico, when Hempacore One 43600 (300 µm to 550 µm) was implemented, it presented a higher level of fire resistance of 30 minutes. Finally, the fire resistance of block 2 A to thermal stress was designed with high critical temperature levels between 561°C and 900°C, while the fire resistance was targeted at the required time of 22 at optimal levels for this standard, which was set at 30.
Descripción
Palabras clave
Estructuras de acero, Resistencia de materiales, Seguridad contra incendios, Steel structures, Strength of materials, Fire safety
Citación
E. Tocto, “Resistencia al fuego y recubrimiento de pintura intumescente en pórtico de acero del Hospital El Carmen bloque 2A,” tesis de licenciatura, Fac. de Ingeniería, Univ. USAT, Chiclayo, Perú, 2026. [En línea]. Disponible en: https://hdl.handle.net/20.500.12423/10166
