Publication: VENTAJAS DEL USO DE CONECTORES MECÁNICOS PARA BARRAS DE REFUERZO DE HORMIGÓN ARMADO
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Date
2017
Authors
PADILLA DE LA ROSA, GONZALO IGNACIO
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Abstract
En este texto se abordará el tema de los empalmes de barras de acero para hormigón armado, comparando el sistema tradicional de traslape de barras mediante amarre, con el sistema de empalme por medio de conectores mecánicos desde un punto de vista de costos directos e indirectos de cada sistema. Para el análisis del método tradicional, el principal enfoque ha sido el costo de los materiales, el tiempo necesario para su ejecución y los efectos colaterales que implica el traslape desde un punto de vista constructivo. Para el análisis de los conectores mecánicos, debido a la amplia gama de opciones que existen en el mercado, se analizarán los que ofrece la empresa CONTEK, 2 de los cuales corresponden a conectores mecánicos prensados en frío y 1 es un conector en base a pernos de corte. Para su estudio los principales puntos de interés fueron; el valor del servicio, los tiempos de ejecución y las ventajas comparativas respecto al sistema tradicional desde el punto de vista constructivo. Para el caso de las uniones soldadas, éstas sólo fueron mencionadas por ser parte de la legislación vigente, pero no se ahondará en mayores detalles debido a que su uso es considerablemente reducido en la realidad.
This paper will address the issue of steel bars splices for reinforced concrete, comparing the traditional system of overlapping bars with the mechanical connectors system from a point of view of direct and indirect costs of each system. To analyze the traditional method, the focus has been the cost of the materials, the time required for its execution and the collateral effects of the overlapping from a constructive point of view. The analysis of the mechanical connectors, due to the wide range of options that exist in the market, will be focusing only the ones offered by the company CONTEK, 2 of them correspond to mechanical cold-swaged coupling sleeves and 1 of them to a shear screw and wedge coupling sleeve. For their study, the main points of interest were; the value of the service, the times of execution and the comparative advantages in opposition to the traditional system from the constructive point of view. In the case of welded joints, these were only mentioned as being part of the current legislation, but will not go into greater detail because their use is considerably limited in the country.
This paper will address the issue of steel bars splices for reinforced concrete, comparing the traditional system of overlapping bars with the mechanical connectors system from a point of view of direct and indirect costs of each system. To analyze the traditional method, the focus has been the cost of the materials, the time required for its execution and the collateral effects of the overlapping from a constructive point of view. The analysis of the mechanical connectors, due to the wide range of options that exist in the market, will be focusing only the ones offered by the company CONTEK, 2 of them correspond to mechanical cold-swaged coupling sleeves and 1 of them to a shear screw and wedge coupling sleeve. For their study, the main points of interest were; the value of the service, the times of execution and the comparative advantages in opposition to the traditional system from the constructive point of view. In the case of welded joints, these were only mentioned as being part of the current legislation, but will not go into greater detail because their use is considerably limited in the country.
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Keywords
CONECTORES MECANICOS , CONECTORES MECANICOS PRENSADOS , HORMIGON ARMADO