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Search Results: 1 - 10 of 328188 matches for " Camilo Otálora-Sánchez "
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Dise?o e implementación de una red de sensores para la adquisición de variables relacionadas con la vigilancia estructural de puentes
Flórez-Rubio,David Magín; Otálora-Sánchez,Camilo; Páez-Rueda,Carlos Iván;
Ingeniería y Universidad , 2009,
Abstract: this article details the design and implementation of a sensor network for structural surveillance of bridges. such network was piloted at the césar gaviria trujillo viaduct in the department of risaralda, colombia. results were successful in terms of solution and reliability of the network.
Dise o e implementación de una red de sensores para la adquisición de variables relacionadas con la vigilancia estructural de puentes
David Magín Flórez-Rubio,Camilo Otálora-Sánchez,Carlos Iván Páez-Rueda
Ingeniería y Universidad , 2009,
Abstract: This article details the design and implementation of a sensor network for structural surveillance of bridges. Such network was piloted at the César Gaviria Trujillo Viaduct in the department of Risaralda, Colombia. Results were successful in terms of solution and reliability of the network.
EVALUACIóN POR CONFIABILIDAD ESTRUCTURAL DE PUENTES EN ACERO APOYADA EN MONITOREO E INSTRUMENTACIóN
Edgar Eduardo Mu?oz Díaz,Federico Nú?ez,Wilson Rodríguez Calderón,Camilo Otálora Sánchez
Ingeniería y Universidad , 2006,
Abstract: This paper shows a reliability analysis evaluation of the main frames of one of the most important Colombian bridges. The evaluation was carried out by employing the following techniques: geometrical detailing, mechanical tests, traffic counting, load deformation tests, structural calibration of the bridge model, instrumentation, electrical monitoring and numerical simulation. The monitoring procedure was implemented by a series of electronic sensors connected to the main frame bridge structure in multiple locations to measure and record data from the strain gages sensors. The purpose for employing the monitoring procedure described above was to compile real-time data to compare them with the design load (C-40-95) established by the Colombian Seismic Code of Bridges Design. Overloads were found in some of the monitored frames. This fact compromises the bridge’s safety and stability and must be controlled immediately. Additionally, probability failure calculations were carried out and the results were that the structure safety ranges that assure stability and a lower risk condition were not found.
La Fenomenología Trascendental en el Contexto de los Estudios Organizacionales
Sánchez Manchola,Iván Darío; Losada Otálora,Mauricio;
Cuadernos de Administración (Universidad del Valle) , 2009,
Abstract: in the present paper the authors analyze the contribution that the transcendental phenomenology approach, concretely the ideas developed by husserl, has made to the organizational studies. the article is divided into three parts. the first one presents a synopsis of the phenomenological approach as the basis for the development of a philosophical project that transcends the positivist conception of scientific knowledge. the second part analyzes phenomenology within the broad context of social studies and especially within the context of organizational studies, pointing out how, in the light of the ideas developed by burrel and morgan (1979), the phenomenological approach is inscribed and contributes to the development of the interpretive point of view. the third one presents the author?s concluding remarks.
La Fenomenología Trascendental en el Contexto de los Estudios Organizacionales Transcendental Phenomenology in the Context of Organitational Studies
Iván Darío Sánchez Manchola,Mauricio Losada Otálora
Cuadernos de Administración (Universidad del Valle) , 2009,
Abstract: En el presente artículo los autores analizan el aporte que el enfoque fenomenológico trascendental, concretamente las ideas desarrolladas por Husserl, ha hecho a los estudios organizacionales. El artículo se divide en tres partes. En la primera se presenta una síntesis de los planteamientos de la fenomenología como base para el desarrollo de un proyecto filosófico que trascienda la concepción positivista del conocimiento científico. En la segunda se analiza la fenomenología en el contexto de los estudios sociales en general y de los estudios organizacionales en particular, y destaca cómo, a la luz de las ideas desarrolladas por Burrel y Morgan (1979), el enfoque fenomenológico se inscribe y aporta al desarrollo de la perspectiva interpretativa. En la tercera parte se presentan las conclusiones. In the present paper the authors analyze the contribution that the transcendental phenomenology approach, concretely the ideas developed by Husserl, has made to the organizational studies. The article is divided into three parts. The first one presents a synopsis of the phenomenological approach as the basis for the development of a philosophical project that transcends the positivist conception of scientific knowledge. The second part analyzes phenomenology within the broad context of social studies and especially within the context of organizational studies, pointing out how, in the light of the ideas developed by Burrel and Morgan (1979), the phenomenological approach is inscribed and contributes to the development of the interpretive point of view. The third one presents the author’s concluding remarks.
THE DANGER OF POPULISM. MACROECONOMIC POPULISM IN LATIN AMERICA, IS COLOMBIA THE EXCEPTION?
Rosalvina Otálora Cortés
Prolegómenos. Derechos y Valores , 2010,
Abstract: En las últimas décadas, el populismo ha recuperado prominencia en América Latina. Se expresa en formas de gobierno de izquierda o derecha como sucede en Venezuela con Hugo Chávez y álvaro Uribe en Colombia, así como en la movilización de algunos sectores de la población. Este concepto ambiguo toma sobre diferentes significados. Desde el punto de vista económico, el populismo macroeconómico destaca el crecimiento mediante políticas de redistribución a corto plazo para aumentar el consumo, descuidando equilibrio macroeconómico, especialmente con respecto a la inflación y déficit fiscal. Este artículo sostiene que el populismo macroeconómico no es nuevo y se ha aplicado en América Latina en varias ocasiones. Con algunas diferencias y en distintos momentos de la historia económica, los gobiernos de Argentina, Chile, Perú y Venezuela, han recurrido a la utilización de políticas fiscales, monetarias y crediticias expansivas y la sobrevaloración de la moneda para acelerar el crecimiento y redistribuir el ingreso. El resultado es una incontrolable inflación y una crisis económica, que pueden explicar la inestabilidad y la hiperinflación que América Latina ha experimentado. Colombia, curiosamente, en toda su historia, es una excepción a esta regla, debido a la independencia de las instituciones que conducen la política monetaria y las barreras que implica para el ejecutivo.
Vulnerabilidad sísmica y capacidad de carga de un puente atirantado basados en confiabilidad estructural
Mu?oz,Edgar; Nunez,Federico; Rodríguez,Jorge A; Ramos,Alfonso; Otálora,Camilo;
Revista ingeniería de construcción , 2010, DOI: 10.4067/S0718-50732010000200006
Abstract: this document presents the analysis of seismic vulnerability and load capacity for cesar gaviria trujilo viaduct, by means of structural reliability techniques based on instrumentation works. such study includes: geophysical trial tests, trials tests on material mechanical properties, environmental vibrations, measurements on the effects of traffic load, wireless instrumentation, loading tests, wire strainers tensile strength, etc. additionally, the study explains structural models on finite elements, which were developed for the bridge, as well as its calibration process based on the loading test, and dynamical properties determined on experimental basis. furthermore, the study indicates the way stress records collection of all structural elements was conducted, during the construction process, in accordance with the job site log-book. as for reliability, a seismic threat analysis was made as well as dynamic responses on the bridge site, where nine spectrums were obtained at different return periods. by studying strength probability curves and seismic loads of pylons, it was found they have reliability indexes in accordance with recommendations by the international regulations. however, one of the superstructure's elements, which were introduced to evaluate its capacity on traffic effects, has a reliability index far higher than the ranges recommended by international regulations. finally, some wire strainers have higher level tensions than specifications admitted during its design and international recommendations for these kinds of bridges.
Vulnerabilidad sísmica y capacidad de carga de un puente en acero basado en confiabilidad estructural
Mu?oz,Edgar; Nú?ez,Federico?; Rodríguez,Jorge A; Ramos,Alfonso?; Otálora,Camilo?;
Revista ingeniería de construcción , 2008, DOI: 10.4067/S0718-50732008000300001
Abstract: in this document, seismic vulnerability and load carrying capacity analyses are presented for a bridge in colombia after monitoring by means of reliability of structures. results of this work are part of a new methodology to evaluate existing bridges carried out though a partnership among university - private companies - and goverment. this study helps in decision making on the priority of rehabilitation tasks. this study included: dynamic characterization of natural vibrations of the bridge; data logging of inner forces due to traffic by using lvdt's and strain gages technology; evaluation of actual forces to be compared to allowed stresses, dynamic and static structural modelling. also, a seismic hazard and dynamic response of the local area of the bridge was developed and nine (9) different response spectra were obtained, each one varying its return period. it was found that the bridge towers have a larger failure probability than that allowed by the codes. this produced an inmediate strengthening of the bridge.
Encondromatosis múltiple (Enfermedad de Ollier) Multiple enchondromatosis (Ollier's disease)
Margarita María Sanz,Andrés Felipe Otálora
Acta Medica Colombiana , 2010,
Abstract:
REPENSANDO A MARíA ESCLAVISMO, ANTISEMITISMO Y MACHISMO EN LA OBRA DE JORGE ISAACS
Juan Camilo Galeano Sánchez
Ratio Juris , 2011,
Abstract: El presente artículo propone una lectura de la novela María, del escritor colombiano Jorge Isaacs, desde la perspectiva de texto constructor de identidad nacional en virtud de su obligatorio estudio en los procesos formativos de los ciudadanos colombianos. Se hace un rastreo de elementos como actitudes frente a los esclavos, en la época en que la esclavitud fue abolida en el país; consideraciones frente a la situación de los inmigrantes judíos y la posición que ocupa la mujer en la fundación del país, asumiéndola como pilar fundamental de la sociedad. Se llega a la conclusión de que la obra debe ser entendida a la luz del contexto histórico en el que fue escrita y deninguna manera como paradigma axiomático vigente en la actualidad.
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