Ingeniero Civil

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http://repositorio.utm.edu.ec/handle/123456789/66

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Browsing Ingeniero Civil by Author "Alcívar Moreira, Stalin"
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    Aplicación del software etabs para la evaluación de la estructura de hormigón armado del edificio de ciencias informáticas frente al comportamiento sísmico del 16 de abril del 2016
    (Universidad Técnica de Manabí, 2016) Quimiz Pillasgua, Cristian David ; Zambrano Moreira, Cristhian Antonio ; Alcívar Moreira, Stalin
    This research work arises from the earthquake that occurred in the province of Manabí on April 16, 2016 and consists of the evaluation of damages in the structural and nonstructural elements of the building of the Faculty of Computer Sciences of the Technical University of Manabí And also the determination of the behavior of the building through a static (basal cutting) and dynamic (spectral modal) analysis where what is sought is to check and check that the elements that actually failed, are reflected in the modeling executed through Of structural software Etabs. The work includes the structural modeling of the building with masonry and the building without masonry to check how the masonry influences the rigidity of a given structure. These analyzes will yield: Floor shifts. Displacement of centers of mass. Periods and modes of vibration. Cutting forces and maximum global momentum. Efforts on certain elements. Failure type of the structural elements using the elastic analysis to be used. In addition, the short column effect of a flat porch with respect to the building will be compared to verify how the masonry influences the generation of this structural failure. With the development of this research, it was concluded that the masonry provides a greater rigidity to the building, reducing the external stresses to which it is subjected, in addition, the faults suffered by the structure were compared, since with the earthquake a building beam and Rest of the ladder suffered bending and shear faults respectively, while in the modeling the program showed certain overloaded structural elements that in real life cannot be observed giving us as a result that certain elements can incur internal fault and are not observed easily
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    Aplicación del software etabs para la evaluación de la estructura de hormigón armado del edificio de industrial frente al comportamiento sísmico del 16 de abril del 2016
    (Universidad Técnica de Manabí, 2016) Muñoz Zambrano, Cristhian Manuel ; Pichucho Morales, Xavier Leonardo ; Alcívar Moreira, Stalin
    This work degree comprises Etabs in the implementation of software for the evaluation of the reinforced concrete structure Industrial building against the seismic behavior of 16 April 2016. The objective of this research is to study the effects that modeling with masonry and non-masonry, entering the spectra of the earthquake on April 16, 2016 and the design spectrum of the Ecuadorian Construction Standard NEC 2015. To achieve this goal the Etabs 2015 software, version 15.2.0 was used, two models one with the contribution of the masonry and the other model without masonry were analyzed; in the case of the model with masonry it was necessary to introduce in the ownership of the masonry compressive strength of the material and its modulus of elasticity; so it was necessary compression tests of masonry. a static analysis, dynamic analysis spectrum of the NEC-2015 and dynamic spectrum analysis of the earthquake of 16 April 2016 the dynamic properties of the structures were analyzed with Ritz vectors and eigenvectors, was conducted to compare the efficiency in computing modes in buildings with masonry and non-masonry. From this study it can be concluded that: Ritz vectors are more efficient in calculating ways in buildings with masonry and non-masonry, because with fewer modes a higher percentage of effective modal mass that using the eigenvectors is reached. When designing a structure with the inelastic spectrum of the NEC-2015 we are using a reduction factors R and design for less than the actual force, therefore it is implied that there is damage to the structure and can conclude that the value of efforts cutting and moments in the spectrum of 16 a are much larger spectrum of design and therefore the structure can be affected.
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    Variación de la respuesta sísmica en edificios de pórticos de hormigón armado arriostrados con diagonales de cables de acero
    (Universidad Técnica de Manabí, 2016) Mieles Alcívar, Erick Damián ; Vélez Cedeño, Carlos Norberto ; Alcívar Moreira, Stalin
    This study was born due to the little information currently available on the behavior of reinforced concrete buildings braced with diagonals of steel cables. The purpose of this investigation is to determine how this type of bracing affects seismic effects. To achieve this was made the model of 10 buildings, 5 of 4 floors and 5 of 6 floors. This was done in Etabs by means of a spectral modal seismic analysis with the parameters of the Ecuadorian Construction Standard NEC15. In addition, a proposal is proposed for calculating diagonal anchorage to the reinforced concrete elements of the porticos, to be applied in new and existing buildings. The change of response of the buildings when being braced with steel cables was evaluated, comparing the dynamic properties, shear forces and moment, and finally the drift of mezzanines, with the unbraced buildings. From this study it can be concluded that this bracing system is capable of changing the fundamental period of the structures, mitigate the cutting and moment efforts, and in turn reducing the drift of the mezzanines by up to 50%. The presence of the cables produces a significant variation of the seismic response especially in the buildings of 4 floors.