橋梁施工三維模型信息技術(shù)研究
發(fā)布時間：2018-11-17 17:09
【摘要】：現(xiàn)今我國城市橋梁工程施工管理基本停留在紙質(zhì)和CAD圖紙,三維可視化程度差,信息化智能化水平低。城市橋梁工程施工涉及產(chǎn)權(quán)單位多,協(xié)調(diào)難度大。為保證橋梁工程施工的順利實施,需多次進(jìn)行施工方案的展示、階段性施工計劃的匯報等,但傳統(tǒng)的橋梁工程管理模式大多是以圖紙、文字等形式,難以清楚地表達(dá)其真實感和動態(tài)的變化過程,不能三維展示橋梁工程設(shè)計方案和模擬施工進(jìn)度,無法集成橋梁工程信息的收集、管理、更新過程。本文以安貞橋立體公交換乘工程實例為依托,對橋梁施工三維模型信息進(jìn)行研究,通過建立橋梁施工三維模型信息技術(shù)系統(tǒng),提供一種動態(tài)實時的三維可視化方式對橋梁三維場景進(jìn)行現(xiàn)實世界的施工模擬。研究內(nèi)容及成果如下:1.系統(tǒng)項目設(shè)計的基礎(chǔ)數(shù)據(jù)采集與處理:安貞橋基礎(chǔ)數(shù)據(jù)采集,安貞橋航空影像、道路DOM和DEM數(shù)據(jù),包括橋梁基礎(chǔ)尺寸的量測,橋梁道路主體結(jié)構(gòu)現(xiàn)場拍攝,橋梁基礎(chǔ)數(shù)據(jù)的統(tǒng)計整理;2.橋梁CAD圖的繪制和整理,通過航空影像繪制橋梁和主干道路的平面圖,利用CAD平面圖導(dǎo)入到3DSMAX軟件中完成橋梁、道路基礎(chǔ)結(jié)構(gòu)及其附屬設(shè)施建模;3.貼圖的制作和后期處理:運用圖像處理技術(shù)把拍攝的紋理進(jìn)行加工處理,制作模型的貼圖、紋理材質(zhì),最后進(jìn)行烘焙渲染,并進(jìn)行系統(tǒng)界面設(shè)計;4.實現(xiàn)3DSMAX與Unity3D新技術(shù)的融合,確定系統(tǒng)模型輸入輸出、模型編輯、信息標(biāo)注、空間分析、圖層管理、動畫編輯、路徑瀏覽等功能和開發(fā)路線,完成系統(tǒng)開發(fā),并成功將系統(tǒng)的應(yīng)用到實際工程中,實現(xiàn)了橋梁施工方案的快速建模,地形影像數(shù)據(jù)與三維模型的融合;橋梁三維模型的直觀展示,改變了傳統(tǒng)二維展示方式;雙屏聯(lián)動,對不同設(shè)計方案的優(yōu)選更直觀;動態(tài)模擬,快速制作橋梁工程施工方案過程推演,更便捷;圖層編輯與展示功能集于一體,實現(xiàn)橋梁施工過程的精細(xì)化、動態(tài)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.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：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.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U445
【參考文獻(xiàn)】
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