Three-dimensional parameterization of slab on girder bridges
Tangirala, Vamsi Krishna
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Current U.S. practice with fragmented paper-based means of information transfer during the bridge design/fabrication/construction process is inefficient. The process is bogged down by repeated error-prone manual transcription of data, time-consuming approvals (e.g., of shop drawings), and insufficient format standardization for electronic data interchange (EDI) for information transfer. What is needed for "better, faster, more economical" delivery of steel and concrete bridges is more complete integration of 3D modeling, computer-aided design (CAD), computer-aided engineering (CAE), and computer-integrated manufacturing (CIM). During the course of the project, we have attempted to develop an improved workflow using information technology tools. 3d parameterization of steel and concrete bridges has been attempted in order to ensure that data is entered only once. Automation of the bridge design through construction process has been attempted wherever feasible without compromising the engineer's judgment. Information transfer through XML file format ensures that the data is easy to comprehend and also provides the option of posting the data on a website.