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Finite Element Analysis of the Meloland Road Overpass and Alternate Model Configurations

Travis Roman Chrupalo-2014-01-01-eScholarship (California Digital Library)
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TL;DRAbstract

The primary purpose of this project is to explore the nonlinear seismic response of an ordinary two span bridge using advanced nonlinear computational techniques. For that purpose, MSBridge, a new nonlinear finite element graphical user interface which conducts calculations using the platform OpenSees is employed. The Meloland Road Overpass is used as the benchmark structure for a parametric study of alterations in salient modeling details. The investigated bridge systems are subjected to three component earthquake accelerations scaled to fit an appropriate Caltrans site-specific spectrum. The examined model configurations address the influence of the transverse reinforcing ratio, and the general effect of implementation of a steel jacket for the column. The various model response characteristics are compared and discussed. Throughout the conducted MSBridge analyses, every modified model responded in a logical fashion with respect to the specified alteration. Therefore, MSBridge proves

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The primary purpose of this project is to explore the nonlinear seismic response of an ordinary two span bridge using advanced nonlinear computational techniques. For that purpose, MSBridge, a new nonlinear finite element graphical user interface which conducts calculations using the platform OpenSees is employed. The Meloland Road Overpass is used as the benchmark structure for a parametric study of alterations in salient modeling details. The investigated bridge systems are subjected to three component earthquake accelerations scaled to fit an appropriate Caltrans site-specific spectrum. The examined model configurations address the influence of the transverse reinforcing ratio, and the general effect of implementation of a steel jacket for the column. The various model response characteristics are compared and discussed. Throughout the conducted MSBridge analyses, every modified model responded in a logical fashion with respect to the specified alteration. Therefore, MSBridge proves

Keywords

OpenSeesStructural engineeringBridge (graph theory)Nonlinear systemFinite element methodParametric statisticsSalientEngineering

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