Research Parameterized Modeling Method Of Structure Model Of BIM On Railway Line (RLBIM)

The great development of China Railway, especially the rapid development of the high speed railway in recent years, had driven a global trend of railway construction, especially the highspeed railway construction. At present, the railway location design still adopts the traditional two-dimensional graphic design pattern. It greatly limits the creativity of railway engineers. Improving the production efficiency of railway construction is imperative.As the development of GIS, railway engineers have been able to obtain accurate three-dimensional digital terrain. Through Virtual Reality technology, railway engineers can arrange the railway structure to accomplish the design of the railway line in a virtual environment. The development of BIM improved the informatization of the railway, and railway design trend to solid design that railway engineers directly arrange the railway structure such as subgrade, bridge and tunnel in three-dimensional digital terrain. Precondition is to build the RLBIM of railway structure. So that research the parameterized modeling method of structure model of RLBIM has great significance.The thesis is based on the parameterized technology and computer geometric modeling technology to research the theoryand the methodof parameterized establishing model of RLBIM. The main contents and achievements are listed below:(1) Using parameterized technology and computer geometric modeling technology to realize the method of establishing the three-dimensional solid model. Then build the model of RLBIM by inputting the information intothe three-dimensional solid model.(2) Selecting the Autodesk Revit software as the platform and using the Visual Studio programmer the secondary development of Revit. The programs and the functions realized the establishing the model of RLBIM in Reivt.(3) This thesis tested the example to verify the correctness of the theory, method and programs through building the model of RLBIM of subgrade, bridge, tunnel and other typical structure on the railway line.