La revista Gaceta Técnica es una publicación semestral y constituye un espacio académico para la divulgación de trabajos científicos originales, de carácter interdisciplinario y multidisciplinario relacionados con el campo de la Ingeniería Civil, Urbanismo, Arquitectura, así como Enseñanza y Ciencias Básicas aplicadas en Ingeniería.
Visión: Ser un espacio de divulgación académico y científico en el área de la ingeniería, arquitectura, urbanismo y ciencias aplicadas en ambientes educativos, con altos niveles de calidad académica.
Misión: Promover redes de intercambio y cooperación mediante la publicación de artículos científicos y temáticas vinculadas con el área de la ingeniería civil, arquitectura, urbanismo y otras disciplinas científicas.
Objetivos:
Consolidar un medio para la difusión de los trabajos de investigadores noveles y expertos.
Promover la producción intelectual en las distintas áreas del saber científico que hacen vida en el decanato y en la universidad.
Brindar a la comunidad científica la oportunidad de intercambio de experiencias exitosas en la construcción y promoción del conocimiento científico.
Estimular la productividad académica de los docentes e investigadores.
Fortalecer la creación y desarrollo de actividades científicas orientadas a mejorar la calidad de vida de la sociedad.
Gaceta Técnica journal is published twice a year and is an academic for the dissemination of original scientific papers, interdisciplinary and multidisciplinary related of Civil Engineering, Urban Planning, Architecture and Basic Education and Applied Sciences in Engineering space.
Vision: To be a space for academic and scientific disclosure in the field of engineering, architecture, urban planning and applied sciences in educational environments with high levels of academic quality
Mission: To promote networks of exchange and cooperation through the publication of articles scientific and themes related to the area of civil engineering, architecture, urbanism and other scientific disciplines.
Goals:
Consolidate a means for disseminating the work of researchers’ novice and experts.
Promote intellectual production in different areas of knowledge scientist
Provide to the community scientific opportunity to exchange experiences successful in building and promoting scientific knowledge.
Stimulate the productivity academic of teachers and researchers.
Strengthen the creation and development of activities scientific aimed at improving the quality of life of society.
Scope
La revista Gaceta Técnica es una publicación semestral y constituye un espacio académico para la divulgación de trabajos científicos originales, de carácter interdisciplinario y multidisciplinario relacionados con el campo [...]
The objective of this article is to present an investigation in which the case study method was used using a group control, to apply the flipped classroom model in a rigid body mechanics course. The students of the group have received the course with the investment model, while the control group with the traditional method is based on lectures. This qualitative-quantitative study collected information from two sources: final course grades and student surveys. As a result, the final scores of group B were also higher than group A (p = 0.039). Group B ratings related to the percentage of pre-recorded conference reviews. In the surveys, group B positively rated the application of the model at 8,3 ± 1,4. In conclusion, that the inverted class promotes student self-learning, which is recommended in the contents related to Physics and Mathematics.
Abstract The objective of this article is to present an investigation in which the case study method was used using a group control, to apply the flipped classroom model in a rigid [...]
The engineering projects have a plan of activities to be carried out in an estimated initial time, which is contrasted with the real time that the execution of the project took. This initial plan is of utmost importance for both the builder and the contracting entity of the work, since this represents a direct relationship of the costs of each stage and the time they demand. The graphic representation of this relationship is adopted as a planning resource, and its form is similar to the S curve. On this graph, it can be seen that at the beginning of the project the accumulated costs are increasing, and at the end of the project it is observed that they decrease. For these reasons, this paper presents a logistic equation model that predicts the planning of a sewer construction project based on a given budget for its execution and the estimated initial time. The model is constructed from a representative sample of sewerage projects executed in the province of Pichincha, and is validated using other that not taken into account in said sample. The model proposed in this paper has as an added value its usefulness in decision-making by public entities because it provides a more accurate estimate of the project's valued timeline.
Abstract The engineering projects have a plan of activities to be carried out in an estimated initial time, which is contrasted with the real time that the execution of the project [...]
This research aims at to evaluate the effect of steel fiber on concrete specimens under compressive strength. The compression strength test was determined in three groups with three specimens each, a control group and two experiments with proportions of 25 and 30 kg/m3 of steel fiber. a compression test was made on the specimens at the age of 14 days. The results of the group with the highest resistance is that with a proportion of 25 kg/m3 of steel fiber with resistance 212,39 kg/m2, exceeding the control group by 1,1%.
Abstract This research aims at to evaluate the effect of steel fiber on concrete specimens under compressive strength. The compression strength test was determined in three groups [...]
This paper is about the experimental determination of the active lateral pressure distribution of a granular soil on a rigid retaining wall undergoing a horizontal translation and a rotation about the top. The pressure measurement was made using load cells as sensors, being the variables the relative density of the backfill and the rugosity of the wall backside. The placement of backfill in loose and dense state was obtained by using the pluviation and the mesh extraction methods, respectively. The wall movement was controlled by a simple mechanical system. The experimental results obtained lead to the general conclusion that loose soils show a linear distribution, and dense soils, a non-linear distribution. Particularly, the distribution of the lateral pressure of a dense backfill against wall that moves horizontally and rotates about the top, shows two peaks. This fact is explained by the Granular Mechanics as the juxtaposition of two pressure distributions related to horizontal translation and rotation about the top.
Abstract This paper is about the experimental determination of the active lateral pressure distribution of a granular soil on a rigid retaining wall undergoing a horizontal translation [...]
Barquisimeto, capital del Estado Lara, Venezuela, cuenta con un Plan de Desarrollo Urbano Local aprobado en agosto de 2003 cuya vigencia se estimaba hasta el 2016, razón por la cual las autoridades municipales tienen la responsabilidad de asumir su actualización o la formulación de un nuevo plan que rija el ordenamiento urbanístico de la ciudad por los próximos veinte años. La formulación del plan es una tarea que debe considerar todas las dimensiones que integran el desarrollo de la ciudad dado el imprescindible enfoque multisectorial, requiriendo resolver algunos problemas en la dinámica urbana, así como algunas debilidades del instrumento vigente. A través del presente trabajo se propone un conjunto de ideas sobre aspectos clave que debe abordar el nuevo instrumento, como son: considerar los acuerdos internacionales relativos a los objetivos del desarrollo sostenible y la nueva agenda urbana, el rol de Barquisimeto en la subregión, la integración de las zonas de barrios, la incorporación de Transbarca, la consideración de nuevos centros y dinámicas de empleo, revisar la zonificación, innovar en cuanto a la dotación de equipamientos y la protección del patrimonio edificado, incorporar programas de actuaciones urbanas bajo la perspectiva de los planes estratégicos y, finalmente, la estrategia de instrumentar el plan macro con micro planes. Para lograr el propósito del trabajo, se identifican fuentes de información y experiencias locales, nacionales e internacionales que servirán de referencia al equipo profesional que asuma el reto de diseñar el nuevo Plan de Desarrollo Urbano Local.
Abstract Barquisimeto, capital del Estado Lara, Venezuela, cuenta con un Plan de Desarrollo Urbano Local aprobado en agosto de 2003 cuya vigencia se estimaba hasta el 2016, razón [...]
The research work presented was carried out with the purpose of evaluating GISWater and HECgeoRAS Geographic Information System (GIS) related tools, which function as a connection node between the HEC-RAS model and the QGIS and ArcGIS software respectively. . Here the conditions of creation of the digital model of the land are leveled, with the purpose of obtaining a final result from a parity of circumstances. The case study chosen to obtain the results was the Quebrada Borure located in the city of Barquisimeto, State of Lara, Venezuela. Once both solutions provided by the HEC-RAS hydraulic modeler were obtained, the correlation between both products was determined, being high, close to the value of the unit, reason why it could be concluded that both tools are applicable in the data processing for the HEC-RAS model, with the advantage that GISWater is a free license and works under the geographic information system QGIS with the same characteristics.
Abstract The research work presented was carried out with the purpose of evaluating GISWater and HECgeoRAS Geographic Information System (GIS) related tools, which function as a connection [...]
This paper presents the analysis of ten structural models of steel structure buildings, using different lateral concentric arches, with software Etabs-16 and Sap2000. to make an observation of the results obtained from the linear and non-linear analysis (Pushover) of the models; taking into consideration the compliance with the minimum parameters established in the Ecuadorian Construction Standard NEC-15, regarding the evaluation of the basal shear and controls so that the structures are considered seismic resistant. The definitive designs of the steel structures are obtained considering the American Institute of Steel Construction norm, and based on the summaries of materials in which indexes are detailed between the total weight and the area of the structures, reference budgets were elaborated. As a consequence, an economic evaluation was carried out to determine which type of concentric bracing turns out to be the most beneficial in terms of costs. The results obtained indicate that the most economical concentric bracing alternative corresponds to the use of reinforced concrete cutting walls, in which savings can be obtained ranging from 14,18% to 17,34% with the use of the other bracing alternatives.
Abstract This paper presents the analysis of ten structural models of steel structure buildings, using different lateral concentric arches, with software Etabs-16 and Sap2000. to make [...]
This research aims to analyze the elastoplastic behavior of welded connections of square section steel tubes subjected to monotonic loading, by means of the theoretical - experimental comparative analysis of the distortion of the cross section geometry of the elements of the beam - column joint. For the experimental tests it was necessary to build a rigid support frame designed with STAAD software. Pro v8i, of fixing and assembly to the gantries and load application system of the universal machine of the Materials Laboratory of the Faculty of Engineering of the University of Zulia. In every test a progressive load (monotonic load) was applied on the upper connection of the gantry to systematically to measure displacements and distortion of the geometry of the beam jointing elements column of the lower connection.
While the theoretical model was performed using the finite element program [4] ANSYS Workbench. The obtained results show that: the welded connection presents a local failure by punching in the column that reduces the theoretical plastic moment capacity of the gantry "Mp" by 46%, scenario of concern for being this capacity used in the design under the theory Design for Load and Resistance Factors (LRFD). The welded connection (node) does not meet the weak beam strong column criterion established by Norma. The column of the welded joint must be reinforced to avoid the formation of the plastic ball joint and a possible mechanism of collapse in the gantry.
Abstract This research aims to analyze the elastoplastic behavior of welded connections of square section steel tubes subjected to monotonic loading, by means of the theoretical - [...]
In this research the behavior of a real scale experimental joint (column-beam joint) formed by three reinforced concrete elements, 1 column and 2 beams, attached to a structural steel column in the upper level is studied. The object in question was subjected to the action of cyclic loads in a single direction, in a pseudostatic test for 5000 s, in order to observe which element of the concrete cylinders failed and which the failure mode was. A mathematical model was created in the ABAQUS CAE software, in order to verify that the design of the gasket of the test piece complied with the normative requirements for the design of base plates, based on concrete crushing and thickness of the base plate. In the bolts its resistance to shear forces, tensile deformation, and verification by tensile cone in the concrete and tensile stress within the cracked area was verified, and it was obtained as a result that the failure was produced by cracking of the reinforced concrete.
Abstract In this research the behavior of a real scale experimental joint (column-beam joint) formed by three reinforced concrete elements, 1 column and 2 beams, attached to a structural [...]
Volumen 19, Nro 1 
A case study of the flipped classroom model in a rigid-body mechanics course 
3217Universidad de Huelva
