Examinando por Autor "Cordero Cabrera, Carlos Julio"
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Ítem Acceso Abierto Análisis de las propiedades físico-mecánicas de placas de hormigón translucido con retículas de vidrio y diferentes porcentajes de fibra de polipropileno(Universidad Católica de Cuenca., 2023) Pauta Novillo, Edwin Ismael; Cordero Cabrera, Carlos Julio; 0106558059Ítem Acceso Abierto Análisis de las propiedades físicos- mecánicas de la mampostería con perforación horizontal sometido a altas temperaturas(Universidad Católica de Cuenca., 2024) Acosta Chilpe, Jefferson Mauricio; Cordero Cabrera, Carlos Julio; 0106700107; García Calle, Anthony AlxanderCurrently, horizontal perforated masonry is one of the most widely used materials in construction due to its strength and durability. However, there is a lack of knowledge about how this material behaves under different thermal conditions. Therefore, analyzing the physical-mechanical properties of horizontal perforated masonry subjected to high temperatures at different exposure times is crucial to assessing structural behavior. To start this research, horizontal perforated bricks, and mortars, beams, and brick panels were made to expose them to high temperatures for different times (5, 10, and 15 minutes), using a blowtorch, domestic gas, and a refractory oven. Compression strength tests reported that the masonry panel exposed to 15 minutes of fire lost 9% of strength compared to the base panel. The brick exposed for 15 minutes decreased by 37% in compression strength. The mortar exposed for 15 minutes showed a 58% reduction. The trio model lost 26% of tangential bond strength compared to the standard model. The gas emission test indicated that the average CO levels in five samples were 561 PPM. Heat transmission at higher temperatures resulted in a minor temperature difference in the indirect part not exposed to fire. Beams decreased their flexural strength by 69.5% compared to the standard model.Ítem Acceso Abierto Análisis de las propiedades mecánicas del hormigón de F´c 210kg/cm2 incorporando diferentes porcentajes de fibras naturales de zanahoria y banano(Universidad Católica de Cuenca., 2023) Naranjo Urgiles, Christopher Geovanny; Rodas Torres, Pedro Esteban; Cordero Cabrera, Carlos Julio; 0107115404; 0107187866Ítem Acceso Abierto Análisis de parámetros mecánicos y diseño de adoquines fabricados a partir de residuos triturados de caucho obtenido de neumáticos reciclados(Universidad Católica de Cuenca., 2023) Cárdenas Peralta, Juan Carlos; Guncay Bustos, Aron Salvador; Cordero Cabrera, Carlos Julio; 0106644735; 0105790075Ítem Acceso Abierto Análisis del comportamiento al fuego de Vigas tipo I con sección reducida: evaluación de la resistencia estructural frente a condiciones de incendio(Universidad Católica de Cuenca., 2024) Cabrera Pesantez, Ronny Damián; Tenezaca Ortiz, Carlos Iván; Cordero Cabrera, Carlos Julio; 0106927999; 0302658182Fires have become a danger for buildings because when they reach high temperatures, they can alter the mechanical properties of structural elements, causing them to fail and collapse. Therefore, this research aims to evaluate the behavior of a steel structural element, such as type I-beams with reduced cross-section, under fire exposure at time intervals (5, 10, and 15 minutes). The structural elements were calculated and designed using AISC 341-16, AISC 358-16, AISC 360-16, AWS, and IDEA StatiCa software. IPE 140 beams and a reinforced HEB 160 column, ASTM 354 or grade 8 bolts, and plates with 10 and 20 mm thicknesses were used. The tests were conducted with the help of the hydraulic press located at the Research, Innovation, and Technology Transfer Center (CIITT by its Spanish acronym) of the Catholic University of Cuenca, while the application of fire and the measurement of temperatures were performed with manual tools. The results showed that the beams exposed to fire for a longer period exhibited greater deformation and lower load capacity. There is a 57.37% reduction of the standard beam compared to the beam with the longest fire exposure. Slight buckling was observed in the beams exposed to fire for extended periods. It was also shown that the longer a beam is exposed to fire, the lower its heat retention capacity.Ítem Solo Metadatos Análisis interacción suelo-estructura en una zona de riesgo con cimentación de pilotes, Cuenca, Ecuador(Universidad Católica de Cuenca, 2023) Cordero Cabrera, Carlos Julio; Almache Sánchez, LuisÍtem Acceso Abierto Comportamiento físico y mecánico de elementos expuestos al fuego: mampostería +enlucido (paneles de ladrillo)(Universidad Católica de Cuenca., 2024) Galarza Lituma, Carlos David; Molina Campoverde, Emmanuel Esteban; Cordero Cabrera, Carlos Julio; 0106888027; 0104931399This research analyzed the physical and mechanical behavior of brick panels with plaster exposed to fire conditions (simulated in an oven manufactured in Ricaurte in the laboratories of the University). Specifically, it was tested how exposure to high temperatures for periods of 5, 10, and 15 minutes affects the structural performance of the panels. Compression and flexural tests were also conducted on panels in two variations: - Plaster on both sides (Both faces of the panel) and - The plaster is on only one side (One-panel face). The results show changes in the panels' strength and load-carrying capacity after fire exposure. The most significant aspect of the tests is that the adhesion between brick and plaster is lost as the time in the oven increases, meaning that the mortar mostly suffers from a decrease in its resistance during the tests. However, it is emphasized that plaster is of utmost importance to protect the joints between bricks, preventing collapse due to heat. In all cases, the panel's performance depends on the masonry's properties and the plaster's additional protection. This study highlights the importance of considering the effect of fire on structural design, safe construction with masonry, and considering construction processes after design. The results provide relevant evidence on the behavior of this type of construction element under simulated fire conditions.Ítem Embargo Comportamiento físico y mecánico de elementos expuestos al fuego: Paneles con plástico recliclado (PET)(Universidad Católica de Cuenca., 2023) Quito Chabla, Marcelo Antonio; Meneses Heras, Adixon Jordano; Cordero Cabrera, Carlos Julio; 0104193560; 1400862064Ítem Acceso Abierto Determinación de la incidencia del componente económico en la etapa de calificación para procesos de licitación en obras públicas(Universidad Católica de Cuenca., 2023) Gutiérrez García, Eddy Santiago; Cordero Cabrera, Carlos Julio; 0103555553Ítem Acceso Abierto Estudio de la adherencia en la unión de hormigón viejo con hormigón nuevo mediante aditivos(Universidad Católica de Cuenca., 2023) Chalán González, Jonathan Xavier; Sánchez Marca, Gioconda Mabel; Cordero Cabrera, Carlos Julio; 1104851793; 0107281289Ítem Acceso Abierto Madera de eucalipto y teca: análisis del comportamiento físico y mecánico frente a la exposición al fuego(Universidad Católica de Cuenca., 2024) Acosta Chilpe, Wilson Favian; Cordero Cabrera, Carlos Julio; 0105191464; García CalleThis project aims to analyze the physical and mechanical properties of two wood species (Teak and Eucalyptus) before and after exposure to controlled fire to determine their strength and predict their behavior after being exposed to fire in different periods. In order to achieve the expected results, laboratory tests were conducted, such as compression, flexural, gas emission, moisture content, and thermal transmission, which consisted of designing specimens with the measurements specified in ASTM D 143 and then placing them in a refractory oven at times of 5, 10, and 15 minutes. The results reveal that when the specimens are exposed to fire, they lose more than 30% of compression strength compared to the standard sample. Eucalyptus had a higher moisture content, with a difference of 30% compared to Teak. Eucalyptus exposed to fire for 15 minutes emitted 330 PPM of CO, while Teak emitted 420 PPM; however, the release of other toxic gases was not detected. Elastic modulus results revealed that samples exposed to fire for 15 minutes lost more than 50% of elasticity compared to the standard samples. Thermal transmission showed that, over time, the temperature increases due to water evaporation from the fibers. The flexural test determined that samples exposed to fire lost more than 25% of their load-bearing capacity compared to samples under normal conditions.Ítem Acceso Abierto Mortero con adición de fibra de Pet aplicada como refuerzo en paredes de mampostería de ladrillo(Universidad Católica de Cuenca., 2023) Andrade Cabrera, Diana Cristina; Morocho Castro, Wilmer Marcelo; Cordero Cabrera, Carlos Julio; 0106817356; 0106227531Ítem Acceso Abierto Presupuestos para una vivienda de hasta dos pisos en hormigón o acero a través de una aplicación(Universidad Católica de Cuenca., 2023) Soto Merino, Anabel Solange; Cordero Cabrera, Carlos Julio; 1104069669Ítem Acceso Abierto Proyecto de Titulación embargado con fines de publicación de impacto(Universidad Católica de Cuenca., 2024) Jadan Nivelo, Juan Carlos; Suculanda Yunga, Viviana Katherine; Cordero Cabrera, Carlos Julio; 0107222507; 0106445091Ítem Acceso Abierto Proyecto de Titulación embargado con fines de publicación de impacto(Universidad Católica de Cuenca., 2024) Dominguez Fajardo, Wilmer Santiago; Cordero Cabrera, Carlos Julio; 0105980288Ítem Acceso Abierto Proyecto de Titulación embargado con fines de publicación de impacto(Universidad Católica de Cuenca., 2024) Morocho Garnica, Kevin Paul; Romero Bernal, Tatiana Estefanía; Cordero Cabrera, Carlos Julio; 0106113079; 0104922592Ítem Acceso Abierto Proyecto de Titulación embargado con fines de publicación de impacto(Universidad Católica de Cuenca., 2024) Pérez Coronel, Alex Daniel; Cordero Cabrera, Carlos Julio; 0150232387Ítem Acceso Abierto Proyecto de Titulación embargado con fines de publicación de impacto.(Universidad Católica de Cuenca., 2024) Jara Cárdenas, Esteban Santiago; Cordero Cabrera, Carlos Julio; 0150214864;
