Trabajos de Titulación - Ingeniería Civil
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- ÍtemAcceso AbiertoEvaluación de la operación del sifón Pinllo Iñasari – Guanña del Sistema de Riego Cerro Negro Churuco, del Cantón Sígsig, aplicando el software Allievi(Universidad Católica de Cuenca., 2024) Caivinagua Llivichushca, Angel Bolívar; Coronel Sacoto, Diego Fernando; 0107102279; García Calle, Anthony AlxanderThis research evaluates two irrigation siphons to ensure their efficient and safe operation, considering their role in water supply. They are relevant in areas with diverse topography. It aims to understand the impacts of pressure, water hammer, and material integrity on their performance, as well as to identify improvements to optimize their design and operation, thus ensuring a reliable water supply. Two inverted siphons in Sígsig canton, Azuay province, were evaluated as part of the Cerro Negro Churuco irrigation system. A comprehensive methodology was used, addressing aspects ranging from the structure of the siphons themselves to local hydrology, including operation and maintenance aspects. Different scenarios were simulated using Allievi software to anticipate possible critical points, integrating data obtained in situ and with Real Time Kinematics (RTK) technology. The analysis considers different scenarios for each siphon, incorporating accessories, and examining the maximum pressures in the pipeline. The results show a maximum pressure of up to 143.96 meters mca and a maximum underpressure of -215.92 mca, measured by including all the fittings in the most appropriate scenario for their operation. These findings highlight the necessity of implementing corrective measures to preserve the integrity of the system and ensure its optimal long-term performance.
- ÍtemAcceso AbiertoOptimizacion para el predimensionamiento de placas base de columnas utilizando Smath Studio(Universidad Católica de Cuenca., 2024) Caraguay Pangol, Marlon Alexis; Palma Zambrano, Eduardo Dioney; 1105214868This research focuses on developing a digital tool to optimize the design and verify the connection between the column, base plate, and foundation. This critical connection in building structures requires precise and efficient analysis to ensure safety and performance. This study aims to develop a digital tool that automates the pre-sizing of the column-base plate-foundation connection, streamlining the design and verification process for civil engineers. The research methodology includes a literature review to analyze relevant regulations and technical literature to identify the parameters and design criteria of the connection. A tool development phase will implement the digital tool using Smath Studio software, integrating algorithms for the calculation and verification of the connection according to NEC 15, ACI 318-19, AISC 360-16, AISC 341-16, and AWS D1.1 standards for Special Moment Frames (SMF) portals. The developed digital tool will provide results, thus optimizing the design time, significantly reducing the time dedicated to pre-sizing the connection, and providing precise calculations and verifications of the connection's capacity to withstand acting forces and moments.
- ÍtemAcceso AbiertoDeterminación de ondas corte Vs y compresión Vp, para correlacionar con valores de N60 y parámetros geo mecánicos de arcillas de Racar(Universidad Católica de Cuenca., 2024) Tacuri Peralta, Darwin Adrian; Maldonado Noboa, César Humberto; 0106244015; LeonardoThis research project aimed to evaluate compressional (Vp) and shear wave (Vs) velocities through seismic refraction techniques, analysis of surface waves (MASW), and microtremor refraction (ReMi) to correlate the obtained velocities with the N60 value, adjusted from the number of blows from the Standard Penetration Test (SPT), as well as with the geomechanical parameters of cohesion (c) and friction angle (ø), determined in the laboratory. Direct and indirect soundings were conducted on the property in the parish of Racar, in Cuenca, following the standards established by ASTM regulations. This area is geologically located in the Piedmont deposits, characterized by clays and clasts. Regarding the SPT tests, a maximum depth of 4.50 meters was reached, while geophysical methods enabled exploration up to 40 meters. Soil samples obtained through the SPT were classified as clays and silts according to the Unified Soil Classification System (USCS) and as type D soil according to geophysical analysis and the Ecuadorian Construction Standard regulations (NEC by its Spanish acronym). Based on the data obtained in the field and the laboratory, correlation formulas were established with an excellent approximation in clay soils, except for the friction angle, which is more related to sandy soils. These equations can be applied in future projects as long as the calculated maximum values are respected.
- ÍtemAcceso AbiertoAplicación de ceniza de cascarilla de arroz como sustitución parcial del agregado fino en la producción de mezclas asfálticas con áridos de composición mayormente sedimentario(Universidad Católica de Cuenca., 2024) Cabeza Illescas, Carlos Guillermo; Palma Gallegos, Kevin Fernando; Darquea Córdova, Francisco José; 0106913940; 0107065260; Maldonado, LeonardoCurrently, there are environmental pollution issues to face due to the excessive generation of products and materials through industrial processes. Therefore, this study proposes using rice husk ash (RHA) as a substitute for the mineral Filler. This work aims to analyze rice husk ash's behavior as a replacement material for the mineral filler in an asphalt mixture in conjunction with aggregates primarily of sedimentary composition. The Marshall method will be employed under parameters established by the Ministry of Transport and Public Works (MTOP by its Spanish acronym) to accomplish this. Mixtures were prepared with different asphalt content percentages: 4.5%, 5%, 5.5%, 6%, and 6.5% (a total of 45 briquettes), using materials with 50% fines and 50% coarse mix, 60% coarse and 40% fines, 55% fines and 45% coarse; with the latter dosage proving to be the most favorable in determining that the optimum asphalt percentage to use is 6%. Next, with the optimal asphalt percentage from the standard design, RHA was incorporated as a substitute for filler in proportions of 20%, 40%, 60%, 80%, and 100%. A total of 15 briquettes were prepared with added RHA. The main result is that the optimal asphalt percentage is 6%, with an additional 20% RHA.
- ÍtemAcceso AbiertoAnálisis 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.
