Unidad de Posgrado Civil y Mecánica

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La accidentalidad en el tránsito vehicular de la ciudad de Ambato
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Vías Terrestres, 2004) Fabara, Víctor Hugo; Garcés Naranjo, Fausto; Fernández, Francisco
En la ingeniería de tránsito uno de los aspectos que merece la especial atención de los técnicos es evitar los accidentes de tránsito en calles y carreteras. Para la ciudad de Ambato se ha emprendido en la investigación sobre los accidentes de tránsito ocurridos en los años 2000 y 2001 dentro del perímetro urbano consolidado. Para poder llevar adelante la investigación sobre la accidentalidad en el tránsito vehicular de la ciudad se ha tenido que recurrir al estudio y análisis de los documentos legales sobre accidentes de tránsito que reposan en la Jefatura Provincial de Tránsito de Tungurahua; se procedió a la selección de aquellos que han ocurrido dentro de él área de la investigación. La información pertinente a todos y cada uno de los 718 accidentes ocurridos en el período de análisis, ha permitido elaborar cuadros de distribuciones de frecuencias, histogramas y otros gráficos que facilitan el entendimiento de la problemática de la accidentalidad en la ciudad de Ambato. En la investigación se llega a encontrar el número de accidentes en la ciudad, así como también se logró localizar las intersecciones y los tramos de vías en los que ellos son más recurrentes. En las conclusiones el lector encontrará el resultado de comparar lo observado dentro del proceso investigativo y lo que se cree que debe ser lo adecuado para un tránsito fluido, normal y sin peligros dentro de la ciudad de Ambato. En las recomendaciones se hace constar todo aquello que a juicio de los autores se considera necesario realizar por parte de las autoridades provinciales y cantonales a fin de reducir las tasas de accidentalidad, es decir mejorar la seguridad en el tránsito vehicular de la ciudad.
Análisis comparativo de conexiones precalificadas con tipología soldadas y empernadas para un sistema SMF en un edificio de estructura metálica
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2022-09) Merino Mora, Verónica Jackeline; Chávez Rubio, Luis Enrique
Ecuador is located in areas where constant and significant earthquakes occur, currently it has been possible to denote the vulnerability of structural steel buildings to a severe earthquake. The scope of this work was to carry out a comparative analysis of prequalified connections with welded and bolted typology for an SMF system in a metal structure building. The ANSI/AISC 360-16 standard is the standard that establishes the specifications for designing steel structures, the ANSI/AISC 341-16 standard indicates the seismic provisions for structural steel buildings and the ANSI/AISC 358-16, which analyzes the prequalified connections for use in special moments and intermediate frames, the standards present a guide for the design of prequalified metallic connections that were used as an instrument for the different mathematical calculations, in addition, applying this methodology, a model of a steel structure was made . National and international standards were used for the study and the Etabs 2019 and Ram Connection software, both with student licenses, were used for the structural analysis. This research performs the comparative analysis of RBS, BFP, BUEEP and WUF-W prequalified connections, with welded and bolted typology for an SMF system in a metal structure building. A structural and economic analysis of the metal frame building is obtained, concluding that the elements that make up the connection in a metal frame building have an elastic behavior. In addition, it was observed that the RBS connection provides the best reliability so that the transfer in the beams (plastic hinge) prevails before that in the columns, as an energy dissipation mechanism and complying with the design philosophy. Regarding the analysis of the cost of steel in beams and columns, it was known that steel in welded beams and columns is cheaper than steel in bolted beams and columns, due to the materials, equipment, machinery and labor used. in the construction process of metal structures.
Análisis comparativo de la conducta sísmica del puente Norte de la ciudad de Salcedo en base a un rediseño del sistema estructural actual con base fija y aisladores sísmicos.
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas., 2025-06) Reinoso Bonilla Carla Alexandra; Peñafiel Valla Lourdes Gabriela
Given the latent seismic risk that Ecuador faces due to its geographical location in the Pacific Ring of Fire, construction mitigates these risks in part by ensuring the safety, comfort, and economy of users. One of the components that ensures these axes is seismic isolation. However, in Ecuador, the application of these construction methods is limited, making it necessary to disseminate innovative systems that allow safeguarding the safety of the population. This research evaluated the effectiveness of LRB-type isolators as a viable solution to construction located in the current environment of the Ecuadorian territory at the central highlands level. Therefore, a comparative analysis was proposed between the conventional design system (mobile supports and fixed supports) and the seismic isolation system implementing lead-rubber bearing (LRB) supports. A modal and timehistory analysis were carried out, and compatible accelerograms were implemented to obtain a range of thorough results as close to reality as possible. As the main results of the investigation, the seismic isolation systems increase the efficiency of the seismic behavior of the bridge under a variation of speeds by a percentage of 10.57%, while in terms of accelerations, the percentage increases to reach 62.01%. The base shear shows a variation of 65.5% in favor of the isolated model, and finally, there is a variation of average displacements of 12cm, where efficiency is ensured through plastic deformation of the components of the LRB seismic isolator
Análisis comparativo de metodologías normativas para la estimación del caudal de diseño en sistemas de alcantarillado sanitario en América Latina
(Universidad Técnica de Ambato-Facultad de Ingeniería Civil y Mecánica-Maestría Hidráulica Con Mención en Obras Hidráulicas, 2026-06-10) Fernández Sánchez Diego Enrique; Arellano Barriga Alfonso Patricio; Universidad Técnica de Ambato-Facultad de Ingeniería Civil y Mecánica-Maestría Hidráulica Con Mención en Obras Hidráulicas
The normative methodologies employed for estimating the design sanitary flow in Ecuador, Colombia, Chile, Mexico, and Argentina were comparatively analyzed, with the purpose of identifying convergences and divergences that hinder technical comparability between sanitation projects in the region. Methodology: A comparative documentary analysis was developed focusing on the mathematical expressions, hydraulic parameters, and normative coefficients used to determine the average flow, the maximum daily and hourly flow, and the design flow, according to the official technical regulations of the five selected countries. Results: Similarities were identified in the estimation of the average flow, based on the relationship between per capita supply, the served population, and the return coefficient. However, differences were evident in the methods employed, especially in the incorporation of temporal variation factors, maximum coefficients, infiltration, and nondomestic contributions. Conclusions: The identified differences reflect varying levels of regulatory complexity and hydraulic safety margins adopted in each country. These findings highlight the need to strengthen technical coherence in sanitary design at the regional level. Likewise, they constitute a relevant input for projects funded by multilateral development organizations that require comparable technical frameworks.
Análisis comparativo de parámetros técnicos económicos de edificaciones de 3 pisos con pórticos especiales a momento de acero estructural y de hormigón armado
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2025-12-03) Cárdenas Arias, Walter Paúl; Flores Gordillo, Guillermo Alejandro
This project is being carried out in Ambato city, parish of Santa Rosa, starting with two three-story architectural models, for which structural calculations are performed using the two most commonly used structural systems in the field: reinforced concrete and structural steel, in both cases using special moment frames. The comparison made on the same architectural model shows the amount of material used when choosing a structural system, as well as the cost of each one. The result was a similarity in the percentage variation, since for the architectural model analyzed, in both cases the concrete has a cost close to thirty-two percent of the value of the structural steel construction.
Análisis comparativo de una estructura habitacional con diagonales excéntricas y una estructura sin diagonales excéntricas, ante una solicitación sísmica
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2022-09) Salazar Gamboa, Alvaro Napoleón; Frías Torres, Alex Xavier
The main objective of this research work was the comparative analysis of a housing structure under seismic stress, taking as a reference point the urban area of Ambato, capital city of the province of Tungurahua, where the building under study is located. A specialized software was used for the modeling and design of the structure, as well as the guidelines of the Ecuadorian construction standard NEC-SE-DS 2015 and ANSI/AISC 360 and 341, respectively. The results obtained were satisfactory with respect to drifts and deflections, according to the configuration in columns, beams and diagonals it was not necessary to redesign the sections of the structural elements. Regarding the analysis, it should be noted that both the structure without eccentric braced frame and the structure with eccentric braced frame obtained an adequate behavior, with drifts of less than 2 percent that comply with the stipulations of the standard, but a notable difference was evidenced in the sections of both columns and beams, obtaining a 45.88 percent reduction in the weight of the structural elements. In the structure with eccentric braced frame, the drifts were maintained within the established limits for this typology according to the NEC with the inclusion of some diagonals, which helped to improve the behavior, reducing considerably the different sections of the structural elements, thus lightening the structure, achieving a balance and avoiding torsional effects in the floor plan, as well as allowing compliance with the maximum floor drifts that limit seismic damage. It was concluded that the structure with eccentric braced frame presents a better lateral resistance to the action of an earthquake due to the addition of the diagonals, which are responsible for redistributing the lateral forces within the building, lightening the structure and considerably reducing the weight of the elements and the consumption of materials.
Análisis comparativo del comportamiento mecánico de la estructura de un puente vehicular tipo arco de luz de 100 m, utilizando péndolas flexibles y rígidas.
(2025-12-03) Guerrero Recalde, Bryan Vinicio; Peñafiel Valla Lourdes Gabriela
This comparative study analyzed the mechanical behavior of a 100 m light arch steel vehicular bridge using eight different types of hangers, composed of ASTM A416 Gr270 cables (flexible) and welded I-section/box sections (rigid), with the intention of understanding how these influence the behavior of the other elements that make up the bridge. Models in RFEM 6, CSI Bridge and SAP2000 are examined using AASHTO LRFD 2020 load combinations. Every 5 meters, envelopes of axial forces, shears V₂ and V₃, moments M₂ and M₃, torsion and deflections in the tie girder and the arch were extracted and processed in Excel spreadsheets. The results show that rigid ties increase the critical load of the arch by up to 25% and extend the fundamental period from 0.69 s to 1.63 s, shifting critical frequencies and reducing dynamic response. Compared to flexible ones, they reduce vertical deflection by 96.2% (–0.145 m → –0.0055 m) and basal shear by 65.5%. The Network typology distributes shear forces and moments more uniformly, while vertical rigid ties shift axial compression from 892.59 t to 734.25 t. The statistical analysis included paired t-tests (α = 0.05) and Pearson correlation coefficients, confirming significant differences (p < 0.05) between each rigid model and its flexible counterpart. These results demonstrate that additional stiffness improves strength, overall stability, and deflection control, providing solid criteria for selecting ties in long-span arch bridges and thus balancing structural efficiency with life-cycle economy.
Análisis comparativo del costo-beneficio de la superestructura del puente ubicado en la parroquia Altar, considerando dos sistemas: losa sobre vigas de acero y losa sobre vigas de hormigón pretensado
(Ingeniería Civil y Mecánica. Carrera Ingeniería Civil. Maestría con mención en Estructuras Metálicas, 2025-12-05) Cáceres Santacruz Alvaro Santiago; Wladimir José Ramírez Cabrera
This research aims to analyze the cost-benefit ratio of slab-on-girder bridges with different types of beams: prestressed beams and steel beams. Analyses were performed based on structural models, using AASHTO LRFD standards, which confirmed that both designs meet the safety and performance criteria. The two bridge systems were designed and analyzed using specialized software. Weights in tons were collected for the main materials comprising the concrete deck and steel beams of the composite bridge, as well as for the concrete with varying strengths used in the prestressed beam bridge. This data was extracted from the design software, and economic cost data was compiled by consulting the public procurement processes on the Ecuadorian Public Procurement Portal, covering the period 2024-2025. Final costs were determined through unit price analysis, multiplying the volume of each material by the total cost, thus obtaining a detailed breakdown of final costs. It was found that for an identical span of 50 meters, the composite system (concrete slab and steel beams) proved to be significantly more expensive, with a final cost of $998,757.66 and a weight of 433.04 T for the main components of the superstructure, in contrast to the prestressed beam bridge, which cost only $240,141.66 and weighed 678.40 T, demonstrating a cost difference of more than four times between the two systems
Análisis Comparativo del Diseño de Placas Base, Mediante el Método del AISC, Método de Líneas de Rotura y MEF, Aplicado a un Edificio de Baja Altura
(Ingeniería Civil y Mecánica. Carrera Ingeniería Civil. Maestría con mención en Estructuras Metálicas, 2025-12-05) Guijarro Paredes Fernando Agustín; Ramírez Cabrera Wladimir José
This research focuses on the structural analysis of base plates using three different methodologies: two manual approaches, one based on the AISC provisions and another on the yield line theory, and a third approach using finite element modeling (FEM). The study was conducted on two types of base plates, an internal and an external configuration, both part of a dual structural system composed of reinforced concrete shear walls and special moment-resisting steel frames, designed for seismic conditions specific to the Ecuadorian context. The investigation involved a comparative assessment of stresses in the plates, anchor bolt tensions, component deformations, and final element dimensions. The results show that the yield line method allows for a significant reduction in plate thickness and material usage compared to the more conservative AISC-based design. This trend was validated through finite element simulations, which confirmed the structural viability of the optimized designs. Overall, the findings highlight the potential of combining analytical and numerical approaches to achieve more efficient and structurally sound solutions adapted to local seismic demands.
Análisis comparativo del impacto del viento en una nave industrial tipo, mediante procedimiento NEC-15 y túnel de viento.
(2025-12-03) Aulestia Martínez, Luis Antonio; Peña Jordan, Francisco Agustín
This study analyzes the structural behavior of a typical industrial building subjected to wind loads applied according to the Ecuadorian Construction Standard (NEC-2015) and compared with a digital wind tunnel simulation developed in RFEM/RWIND. The main objective was to design and evaluate the structure under both methods to determine its stiffness, flexibility, and energy dissipation capacity. The analyzed structure corresponds to a steel gable-frame industrial building with a 20 m span, 6 m eave height, and 30 m length, built with HEB columns and IPE variable-section beams, using ASTM A36 structural steel. Dead, live, and wind loads were considered in accordance with NEC-SE-CG, combined using the LRFD load combinations. The aerodynamic simulation in RWIND was performed by applying a logarithmic wind profile for directions of 0°, 90°, and 45°, using the k–ω SST turbulence model. The results confirm the proposed hypothesis: the structural displacement depends on the method used to apply wind loads. Along the X-axis, the maximum displacement increased by up to 43 % with the CFD model compared to the NEC calculation, while along the Y-axis variations of up to 36 % were recorded. These differences are attributed to the non-uniform pressure distribution and the three-dimensional flow effects captured in the CFD simulation. In conclusion, the comparison between the NEC and CFD simulations shows that code-based methods tend to partially underestimate actual displacements, especially in areas of suction and eaves. The integration of both approaches provides a more accurate assessment of structural behavior, validating the proposed methodology and research objectives.
Análisis comparativo entre metodologías clásicas y el software Climatol para la estimación de series pluviométricas en la cuenca del río Paute.
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Hidráulica con mención en Obras Hidráulicas., 2025-11-26) López Cáceres, Carlos David; Castro Solórzano, Fidel Alberto
This thesis presents a comparative analysis between classical estimation methods and a computational software package named as CLIMATOL for filling missing rainfall data, with a focus on the Paute River basin. The study evaluates four conventional techniques commonly used in hydrology—Arithmetic Mean, Interpolation, Linear Regression, and Normal Ratio—comparing their performance against that of a software used to determine the precipitation CLIMATOL. The core methodology involved applying each technique to datasets with simulated missing values and comparing the resulting estimations using statistical metrics such as Root Mean Square Error (RMSE) and the Coefficient of Determination (R²). The results demonstrate that CLIMATOL outperform classical methods in terms of accuracy and adaptability, particularly in scenarios characterized by complex patterns of climatic variability. Nevertheless, the study concludes that, although CLIMATOL show significant advantages, their application requires careful consideration of the climatic and geographical characteristics of the study area. Factors such as seasonality, relative altitude, and the spatial distribution of meteorological stations directly influence the quality of the estimations. Therefore, it is recommended to use CLIMATOL as a complement to classical methods, integrating expert knowledge of the local hydrological context.
Análisis comparativo entre placas base con pernos de anclaje extendidos y placas de base tradicionales
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2024-10) Cruz Villavicencio, Nathaly Hailys; Cañizares Ortega, Freddy Fernando
The objective of this research project is to perform an analysis of base plate connections in steel structures as a crucial component in building construction, especially in Ecuador where steel structures have gained popularity in recent years. In the framework of the analysis, two main types of base plate connections were identified: a traditional version and another variant with extended bolts that provided greater stiffness, where comparing these two systems, their advantages and disadvantages were evaluated both in constructive and economic terms. A design guide was established that allowed a simple replication of the two systems, seeking to improve the strength and energy dissipation capacity of the structures under seismic loads. After designing each connection based on stresses obtained from a structural design, it was found that the plates with extended bolts functioned as a fuse, generating creep along the bolt, which allowed absorbing stresses without compromising other structural elements; on the other hand, the traditional base plate generated stresses in the column, which could be detrimental after a seismic event. The cost-benefit analysis revealed that plates with extended bolts imply a greater expense due to the complexity of their components and the additional effort required for their installation. Nevertheless, their implementation is recommended in regions with high seismic activity where structural protection is essential. On the other hand, in areas of low seismicity, their use is not economically justifiable, being more convenient to opt for traditional base plates, fulfilling the objectives by proposing a methodology that can be applied in future research and projects, offering a useful tool for the design of base plate type connections in metallic structures that provide safety especially in seismic contexts.
Análisis de aceros y recubrimientos utilizados en tambores de mezclado de los mixers de la empresa Holcim Ambato y su influencia en el desgaste abrasivo bajo la norma ASTM G105
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Diseño Mecánico, 2017) Villacrés Padilla, David Andrés; Núñez Núñez, Diego Fernando
This research project was developed under the objective of analyzing the types of steels and coatings used in the mixing drums of the mixers of the HOLCIM company Ambato and its influence on the abrasive wear under the ASTM G105 standard, which tests were carried out from abrasive wear and an analysis of the rate of such coatings. For the development of the research, a bibliographic, field and experimental methodology was used, also exploratory and descriptive to address the study phenomenon that included 8 trials with the application of different configurations for the evaluation of the variable, besides a 40 sample scheme was developed with ASTM AISI 1020 steels and ASTM A514 grade F high strength steel corresponding to the Holcim Mixer drum, which were applied to three types of coatings such as nitrided, metallized and cemented. Due to this it was possible to conclude that the application of coatings and thermal treatments on the steels improve the characteristics and properties with respect to the abrasive wear, these processes contribute to a greater hardness and abrasive resistance. In addition, it is determined that, in the case of the amorphous tungsten alloy coating, it presents the greatest increase of hardness of the surfaces, which defines as the best treatment applicable in the steels, reason why a procedure for the recovery of the mixers according to the location of the parts of the mixer drum of the HOLCIM company.
Análisis de amortiguadores híbridos utilizados en estructuras metálicas de edificaciones de mediana altura para mejorar su respuesta a cargas sísmicas
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2023-03) Jaya Guanoluisa, Mario Hernán; Arroba Arroba, César Hernán
The present research focused on identifying different configurations of hybrid dampers that are applicable to mid-rise buildings through the review of research, these devices were evaluated with computational tools, using the finite element method, which allowed to know the structural behavior of this type of systems with reliable mathematical models. Three types of dampers were identified that use fusible elements such as slits and weak plates to dissipate energy through deformations and contact surfaces that dissipate energy through friction, the analyzed dampers are composed especially of steel plates and surfaces of rough materials joined by bolts forming a single assembly, These devices are then adapted with welded or bolted joints to the structures, especially in the central zone of the beams, thus preventing damage to the structural element and giving way to the formation of ball joints and deformations in the fusible elements. After the analysis, the damper with the most stable behavior was identified in order to propose a proposal to improve the seismic performance and better dissipate the energy of the seismic loads.
Análisis de fiabilidad de máquinas y equipos por la ley de Weibull en el área de extrusión de la empresa Holviplas S.A. y su incidencia en la disponibilidad
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Diseño, 2020) Agualongo Yansapanta, Luis Rolando; Castro Miniguano, Christian Byron
The present research "Analysis of reliability of machines and equipment by the law of Weibull in the area of extrusion of the company Holviplas S.A. and its impact on availability", has as its primary objective to determine the reliability using the mathematical and graphical method of Weibull. For the development of the analysis, statistical data of maintenance activities previously carried out were taken, which allowed us to identify, through an AMFE matrix, the most critical components or the most prone to failures. On the other hand also analyzed times mean time between failures(TMBF), average repair time (MTTR), operation time (To), the failure rate (Lamda), ideal reliability (Rt), Availability (D). Subsequently with the collected data the study of times of operation and stop of the machinery was carried out, by means of the information of the registers of maintenance, consecutively the statistical analysis was carried out to determine the reliability by means of the distribution of WEIBULL of each machine and equipment, so much with the mathematical method as the graphical method, which allowed to give a more relevant criterion, on which position of the curve of the bath are the machines and the pertinent actions that must be carried out for a process of maintenance. The research was based on the standards NTP 331 and NTP 679 for WEIBULL and AMFE analysis respectively. The software was programmed to determine reliability using the .m language of the specialised software and its GUIDE graphical interface editor. Finally, several practical applications were made to verify the correct functioning of the program, demonstrate its functionality and scope, obtaining a program that is able to calculate the parameters of the Weibull distribution, reliability values and graph with precision at the height of some commercial software , with a simple user interface.
Análisis de juntas tipo bridas apernadas para estructuras de telecomunicaciones de tipo monopolo usando el método de elementos finitos
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Ingeniería Civil con Mención en Estructuras Metálicas, 2023-03) Muyulema Muyulema, Dany Germán; Peña Jordán, Francisco Agustín
Monopole structures are used as telecommunication towers, especially in urban areas where zoning is difficult. The load hypothesis that predominates their design is wind, since most of the collapses are due to this effect. The most critical part that is more prone to failure in the towers is the bolted flange joint, which requires a special focus in the design to guarantee its resistance and performance over time. In the present investigation, a finite element model was obtained that approximated the actual structural behavior of bolted flange joints. The finite element models were developed in a specialized software and monotonic lateral load tests were performed for their validation. The results obtained by measuring loads and displacements in the tests were compared with those obtained in the finite element model, showing non-significant variations in the points of interest of the bolted flange. The finite element model was useful for predicting the structural behavior of the flanges, making the design process more dynamic.
Análisis de la aleación mecánica de aluminio 1060 con porcentajes controlados en peso de zinc y su incidencia en la resistencia última a la tensión, dureza e impacto
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Diseño, 2019) Pineda Silva, Giovanny Vinicio; López Villacís, Gonzalo Eduardo
The research project begins due to the need to have technically documented information related to powder metallurgy within the scope of mechanical alloy, manufacturing process that is entering into the National Industry, due to the advantages it presents with respect to traditional processes; being the most representative, a more exact control of the limits of the composition, optimization of raw material and is a process susceptible to automation with good surface finish for serial production of mechanical components. The experimental process of the mechanical alloy begins with the obtaining of mechanical powder of the base elements: Aluminum 1060 with particle size 30 micrometers and alloying: Zinc with particle size between 45−63 micrometers through the use of ball mill and a screening control; mixing process based on the percentages in weight defined for the subsequent compaction and sintering of the test pieces for the correct development of the tests. The study of tensile strength, hardness and impact was developed though the control of variables of percentage by weight of alloying element: 0.5 – 1.0 y 1.5 percentage Zinc, and sintering temperature: 462 celcius degrees y 594 celsius degrees ; the best results were obtained in the case of a study developed with 1 percentage Zinc and a temperature of 594 celsius degrees, where the hardness and tensile strength were increased by 69 percentage and 12.29 percentage respectively in relation to the base element; while the impact resistance as a function of the energy absorbed decreases by 39.40 percentage in the best case 1 percentage Zinc and 462 celsius degrees; in addition, the controlled variables are correlated with each other and directly affect the properties under study according to the statistical analysis developed by Fisher’s test.
Análisis de la implementación de SUDS para el control del agua pluvial y mejora del paisajismo urbano del parque y la plaza de Quisapincha, cantón Ambato, provincia de Tungurahua.
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Hidráulica con mención en Obras Hidráulicas., 2025-12-03) Cerezo Pachucho, Joyce Elizabeth; Guevara Robalino, Jorge Javier
This research analyzes the feasibility of implementing components of a Sustainable Urban Drainage System (SUDS) in the park and plaza of the Quisapincha parish to control surface runoff and improve the landscaping of these areas. This was achieved through the modeling of prototypes using the SWMM 5.2 software, which reflects the flow behavior throughout the system based on the area's precipitation. Data collection was carried out using a mixed-methods approach, emphasizing research through academic digital sources, field observations, consultations with INAMHI to obtain hydrometeorological information, topographic surveys, and tests. The data was then analyzed using open-source software to obtain valid and comparable data. The results highlight the importance of implementing a SUDS in areas prone to rainwater stagnation, as this solution allows for the filtration, retention, storage, and infiltration of precipitation. This research presents an alternative for stormwater management without neglecting ecological value, even allowing for water reuse. Furthermore, it establishes a foundation for future research on implementing other components of a Sustainable Urban Drainage System (SUDS), depending on the area's location and climatic conditions. It highlights the importance of implementing sustainable measures to reduce natural disasters caused by rapid urbanization.
Análisis de la influencia de las pruebas tecnológicas sobre las propiedades mecánicas de compuestos de resina polimérica reforzado con fibras naturales del Ecuador bajo norma ASTM
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Diseño, 2019) Salán Guevara, Luis Geovanny; Analuiza Maiza, Oscar Iván
This document responds to an investigative work, against the lack of knowledge of the degree of degradation of composites in the open air, for this purpose the study of the influence of UV radiation and humidity, considered as technological tests, on the mechanical properties of tensile and flexion in two types of composite materials, one with a matrix of polyester resin and reinforcement of cabuya fiber and the other with the same matrix of the previous one with banana fiber reinforcement, under ASTM regulations. In order to determine the percentage of humidity and UV affectation in the aforementioned composite materials, by comparing their properties and determining which one offers better anti-degrading benefits to technological tests, tensile and flexural tests were carried out in the pre and post phases exposure to them. From the experimental treatment of the data obtained, conclusions are established that determine that the composite with better characteristics to resist technological tests is one that uses banana reinforcement. Subsequently, it was validated its use within the automotive industry - body supported by the analysis of finite elements performed by the specialized software intermediary, determining that its ideal application is for internal cover for bus roofs.
Análisis de la influencia de un dieléctrico ecológico sobre la rugosidad superficial en el maquinado del acero K100 mediante el proceso de electroerosión por hilo (WEDM)
(Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Maestría en Mecánica Mención Diseño, 2020) Molina Molina, Diego Patricio; Analuiza Maiza, Oscar Iván
In the Ecuador, non-conventional mechanized process have carried an analysis that is referred to the form of production of mechanic elements of complex geometry, that’s why the necessity of investigate the cuts of wire electroerosion (WEDM); using an alternative dielectric which is ecological in base to the electrochemical effect, for the aim of substitute the common way of coolant without the alteration of the final roughness and hardness on the cutting section, and preserve the equipment integrity, and contributing to the factories dedicated to the sheet metal process, to the ecology and the environment around us. The mentioned process goer together with the adequate cutting parameters study, based on an experimental investigation lead to characterized the representative ones of the surface finishing. The analysis is based on a comparative treatment which permits knowing the variability of the roughness and hardness acquired amounts on the cutting section through a variances analysis ANOVA about the factors that influence on the cutting process, in addition observe the presence of possible alterations on the cutting zone through the application of a scanning electron microscope (SEM). Having as a result the applicability of the alternative dielectric because under the influence of the same is achieved to obtain in average a significant value of roughness equal to 4,658 micrometers which is less to the achieved average amount with the application of the coolant, where the average is 5,253 micrometers. Furthermore, the surface represents less rate of irregularities, and one significant average to hardness it is referred. That is why the ecologic fluent gets to substitute easily, achieving with the asked expectations for the mechanized type.