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Ítem Tutorial autodesk inventor 2014(2014-02-15) Granados Delgado, Oscar Emmanuel; https://scienti.colciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0001562611; https://scholar.google.es/citations?user=vOW39zoAAAAJ&hl=es; https://orcid.org/0000-0002-7422-8388Tutorial for handling 3D CAD software in mechanical design Inventor® and Inventor® Professional includes demodelado options of free form, direct and parametric, tools of design automation and tools of simulation and advanced visualization.Ítem Problemas resueltos de ecuaciones diferenciales ordinarias (EDO)(2017-10-17) Alba Mendoza, Carlos JesúsThis paper presents the solution of two types of Ordinary Differential Equations (ODE) in the context of the subject “OPERACIONAL Y NUMÉRICOS” of the curriculum of the Civil Engineering Program of the Universidad Santo Tomás de Bogotá and is aimed at students of this course as an element of support in their study. An example of an Ordinary Differential Equation (ODE) of type y '= f (x) and another one of the type y' = F (x, y) is proposed and solved to analyze the solution process of each one. Results of the Euler, Heun, Middle Point and fourth order Runge-Kutta (RK4) methods are solved and compared. In both cases, for each of the methods, the calculation tables are elaborated in EXCEL® and the mathematical software, GPL, EULER MATH TOOLBOX (MAXIMA) is used for the analytical solution.Ítem Problemas resueltos de métodos numéricos. Con uso de software CAS.(2017-09-14) Alba Mendoza, Carlos JesúsThis document presents the solution of two problems in the context of the NUMERICAL AND OPERATIONAL METHODS of the syllabus of the Civil Engineering Program of the Universidad Santo Tomás de Bogotá, and is addressed to the students of this course as an element of support in their study. In the first problem, an Ordinary Differential Equation (ODE) is proposed and solved to analyze the behavior of the liquid level of a tank that has a sinusoidal variation supply and the liquid is drawn at a constant flow. The second problem determines the flow rate in the different sections of a pipeline network at steady state, by solving by numerical methods the equations that arise in each section. In both cases tools are available in EXCEL® and in the mathematical software EULER MATH TOOLBOX (Maxima).Ítem Deflexiones (Contraflechas) producidas por los cables de tensionamiento en las vigas simples de concreto(2017-09-14) Farías García, EccelinoIn general, the most common formulas of the deflections produced by the cables in pre-stressed beams are stated, but not deduced, from the application of the principles of structural analysis. Therefore, we consider it is important, from the academic and investigative point of view, to undertake such a task, both for the known formulas and for many others special conditions corresponding to the actual geometry of the cables, which is presented in this document. For this purpose is used the principle of AREAS-MOMENTS derived from the general equation of the elastic line of the beam, which is stated in its two theorems as follows: 1) "When a straight beam is subjected to bending, the difference of the slopes of the elastic curve at any two points is represented in magnitude by the area bounded by the diagram M EI and the ordinates raised at the corresponding points. 2) When a straight beam is bent, the distance of any point (A) from the elastic curve, normally measured at the original position of the beam, to a tangent drawn to the elastic curve at any other point (B ), is represented in magnitude by the moment of the area of the diagram M EI, between the two points, with respect to an ordinate passing through (A) ".Ítem Cerchas y Progresiones(2017-09-14) Correa Uribe, Germán RicardoThis work consists in the application of the properties of arithmetic progressions and the equations of recurrence to the calculation of the axial forces that are transmitted in the bars of the trusses (tensions or compressions), when there are symmetry of loads and form, in V-trusses , N-trusses and Howe trusses. The loads are "F" on the upper members and "F / 2" on the extreme ones. In the development of these equations the “method of the sections” and that of the “nodes” are applied, which are methods studied in the courses of “Statics” in engineering. This paper articulates a theme of basic mathematics which are “the arithmetic progressions” with another very important subject of the structural analysis, as that of calculation of the axial forces in the trusses.Ítem Cartilla dosificación mezclas de concreto. Agregados del punto de acopio Rodeb(2017-09-14) Becerra Becerra, Javier Eduardo; Peña Rey, Ferney Oswaldo; Culma Pirabán, Angie Cristina; Herrera Benavides, Paul Nicolás; Rocha Vargas, Daniela Camila; Rojas Farfán, Faindry JuliethConcrete is a mixture composed of natural and artificial materials, which depends on the physical and chemical properties of elements such as cement, water and stone aggregates. The workability and strength of the concrete is given directly by the proportions obtained in the mix designs, which vary according to the physical properties of their aggregates. A suitable concrete mix design under any of the technical methodologies, ensures that the structural elements based on this material, reach the expected resistances under the load demand of the structure. Hence its importance in structural design. According to the above, this document aims to socialize the community of Tocancipá, Walker's methodology for the design of concrete mixtures with compressive strengths of 21 and 28 MPa, using the aggregates of the collection point Rodeb in Sopó, Cundinamarca. This paper is a research product developed in the project: Physical-chemical, mechanical and mineralogical characterization of sandstones used for the construction of the free zone of Tocancipá, in the Rodeb and Acopios quarry - Sector Hato Grande - Sopó, led by Geologist Ph .D Javier Eduardo Becerra Becerra and with the participation as co-investigators of the engineers Ferney Oswaldo Peña (M.Sc) and Rubby Stella Pardo Pinzón (M.Sc).