桥梁施工三维模型信息技术研究
发布时间：2018-11-17 17:09
【摘要】：现今我国城市桥梁工程施工管理基本停留在纸质和CAD图纸,三维可视化程度差,信息化智能化水平低。城市桥梁工程施工涉及产权单位多,协调难度大。为保证桥梁工程施工的顺利实施,需多次进行施工方案的展示、阶段性施工计划的汇报等,但传统的桥梁工程管理模式大多是以图纸、文字等形式,难以清楚地表达其真实感和动态的变化过程,不能三维展示桥梁工程设计方案和模拟施工进度,无法集成桥梁工程信息的收集、管理、更新过程。本文以安贞桥立体公交换乘工程实例为依托,对桥梁施工三维模型信息进行研究,通过建立桥梁施工三维模型信息技术系统,提供一种动态实时的三维可视化方式对桥梁三维场景进行现实世界的施工模拟。研究内容及成果如下:1.系统项目设计的基础数据采集与处理:安贞桥基础数据采集,安贞桥航空影像、道路DOM和DEM数据,包括桥梁基础尺寸的量测,桥梁道路主体结构现场拍摄,桥梁基础数据的统计整理;2.桥梁CAD图的绘制和整理,通过航空影像绘制桥梁和主干道路的平面图,利用CAD平面图导入到3DSMAX软件中完成桥梁、道路基础结构及其附属设施建模;3.贴图的制作和后期处理:运用图像处理技术把拍摄的纹理进行加工处理,制作模型的贴图、纹理材质,最后进行烘焙渲染,并进行系统界面设计;4.实现3DSMAX与Unity3D新技术的融合,确定系统模型输入输出、模型编辑、信息标注、空间分析、图层管理、动画编辑、路径浏览等功能和开发路线,完成系统开发,并成功将系统的应用到实际工程中,实现了桥梁施工方案的快速建模,地形影像数据与三维模型的融合;桥梁三维模型的直观展示,改变了传统二维展示方式;双屏联动,对不同设计方案的优选更直观;动态模拟,快速制作桥梁工程施工方案过程推演,更便捷;图层编辑与展示功能集于一体,实现桥梁施工过程的精细化、动态管理。
[Abstract]:Nowadays, the construction management of urban bridge engineering in our country basically stays on paper and CAD drawings, the degree of 3D visualization is poor, and the level of information intelligence is low. Urban bridge engineering construction involves many property rights units, coordination is difficult. In order to ensure the smooth implementation of the bridge engineering construction, it is necessary to display the construction plan and report the construction plan for several times. However, the traditional bridge engineering management mode is mostly in the form of drawing and writing, etc. It is difficult to clearly express its realistic and dynamic changing process, to display the bridge engineering design scheme and simulate the construction progress in three dimensions, and to integrate the collection, management and update process of bridge engineering information. In this paper, based on the example of three dimensional bus transfer project of Anzhen Bridge, the information of 3D model of bridge construction is studied, and the information technology system of 3D model of bridge construction is established. A dynamic and real-time 3D visualization method is provided to simulate the real-world construction of bridge 3D scene. The research contents and results are as follows: 1. Basic data acquisition and processing of system project design: Anzhen Bridge basic data acquisition, Anzhen Bridge aerial image, road DOM and DEM data, including bridge foundation size measurement, bridge road main structure field shooting, Statistical arrangement of bridge foundation data; 2. Drawing and arranging the CAD map of bridge, drawing the plane map of bridge and trunk road by aerial image, using CAD plan to complete the bridge, road infrastructure and its ancillary facilities modeling; 3. Map production and post-processing: the use of image processing technology to shoot texture processing, making model mapping, texture material, and finally baking rendering, and system interface design; 4. In order to realize the integration of 3DSMAX and Unity3D, the system model input and output, model editing, information annotation, spatial analysis, layer management, animation editing, path browsing and other functions and development routes are determined to complete the system development. The system has been successfully applied to practical engineering, and the rapid modeling of bridge construction scheme and the fusion of terrain image data and 3D model have been realized. The visual display of the 3D model of the bridge changes the traditional two-dimensional display mode; the linkage of two screens is more intuitive to the optimal selection of different design schemes; the dynamic simulation is more convenient to make the bridge construction project process quickly; Layer editing and display functions are integrated to realize the fine and dynamic management of bridge construction process.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U445
[Abstract]:Nowadays, the construction management of urban bridge engineering in our country basically stays on paper and CAD drawings, the degree of 3D visualization is poor, and the level of information intelligence is low. Urban bridge engineering construction involves many property rights units, coordination is difficult. In order to ensure the smooth implementation of the bridge engineering construction, it is necessary to display the construction plan and report the construction plan for several times. However, the traditional bridge engineering management mode is mostly in the form of drawing and writing, etc. It is difficult to clearly express its realistic and dynamic changing process, to display the bridge engineering design scheme and simulate the construction progress in three dimensions, and to integrate the collection, management and update process of bridge engineering information. In this paper, based on the example of three dimensional bus transfer project of Anzhen Bridge, the information of 3D model of bridge construction is studied, and the information technology system of 3D model of bridge construction is established. A dynamic and real-time 3D visualization method is provided to simulate the real-world construction of bridge 3D scene. The research contents and results are as follows: 1. Basic data acquisition and processing of system project design: Anzhen Bridge basic data acquisition, Anzhen Bridge aerial image, road DOM and DEM data, including bridge foundation size measurement, bridge road main structure field shooting, Statistical arrangement of bridge foundation data; 2. Drawing and arranging the CAD map of bridge, drawing the plane map of bridge and trunk road by aerial image, using CAD plan to complete the bridge, road infrastructure and its ancillary facilities modeling; 3. Map production and post-processing: the use of image processing technology to shoot texture processing, making model mapping, texture material, and finally baking rendering, and system interface design; 4. In order to realize the integration of 3DSMAX and Unity3D, the system model input and output, model editing, information annotation, spatial analysis, layer management, animation editing, path browsing and other functions and development routes are determined to complete the system development. The system has been successfully applied to practical engineering, and the rapid modeling of bridge construction scheme and the fusion of terrain image data and 3D model have been realized. The visual display of the 3D model of the bridge changes the traditional two-dimensional display mode; the linkage of two screens is more intuitive to the optimal selection of different design schemes; the dynamic simulation is more convenient to make the bridge construction project process quickly; Layer editing and display functions are integrated to realize the fine and dynamic management of bridge construction process.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U445
【参考文献】
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