Deep Corrugated Steel Bridge Design: Application of Highway Manual Standards and Chilean Standards
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Bridges, Tunnels, Steel, Corrugation Luis Almendra1, Claudio Poblete2 1 Tecnovial S.A., Santiago, Maipú, lalmendra@tecnovial.cl 2 Tecnovial S.A., Santiago, Maipú, cpoblete@tecnovial.cl Resumen El presente documento indica las características esenciales para el procedimiento cálculo de estructuras de acero en corrugación profunda, sistema que se utiliza para el diseño de estructuras de grandes luces como lo son puentes y túneles de gran diámetro. Una de las normas que más impera al momento del diseño de cálculo es la norma AASHTO LRFD, la cual entrega indicaciones especiales para estructuras armadas en base a planchas de acero de corrugación profunda debido a su capacidad a soportar solicitaciones flexurales además de la solicitud a carga axial que soportan sus pares corrugados de menor tamaño. Entre las características más importantes que se incorporan en el estudio de estructuras de acero de corrugación profunda de grandes dimensiones es el requerimiento de estudiar el diseño por medio de un programa de elementos finitos; en el caso de Tecnovial se usa para el estudio de sus trabajos el sofwtare FLAC 2D en su séptima versión. El aporte de este tipo de soluciones en el campo de la infraestructura vial es la de generar diseños para cruce de caminos que puedan ser armados en tiempos rápidos que van afin con las necesidades actuales de nuestra industria. Abstract This document indicates the essential characteristics for the calculation procedure of deep corrugated steel structures, a system used for the design of large span structures such as bridges and large diameter tunnels. One of the most prevailing standards at the time of calculation design is the AASHTO LRFD standard, which provides special indications for reinforced structures based on deep corrugated steel plates due to their capacity to withstand flexural stresses in addition to the axial load request supported by their smaller corrugated counterparts. Among the most important characteristics incorporated in the study of large deep corrugated steel structures is the requirement to study the design by means of a finite element program; in the case of Tecnovial, the seventh version of the FLAC 2D sofwtare FLAC 2D is used for the study of its works. The contribution of this type of solutions in the field of road infrastructure is to generate designs for road crossings that can be assembled in quick times that are in line with the current needs of our industry.Abstract
This document indicates the essential characteristics for the calculation procedure of deep corrugated steel structures, a system used for the design of large span structures such as bridges and large diameter tunnels. One of the most prevailing standards at the time of calculation design is the AASHTO LRFD standard, which provides special indications for reinforced structures based on deep corrugated steel plates due to their capacity to withstand flexural stresses in addition to the axial load request supported by their smaller corrugated counterparts. Among the most important characteristics incorporated in the study of large deep corrugated steel structures is the requirement to study the design by means of a finite element program; in the case of Tecnovial, the seventh version of the FLAC 2D sofwtare FLAC 2D is used for the study of its works. The contribution of this type of solutions in the field of road infrastructure is to generate designs for road crossings that can be assembled in quick times that are in line with the current needs of our industry.
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