鋼筋混凝土橋梁可視化及信息管理研究
發(fā)布時間：2018-08-07 15:38
【摘要】：近些年來,隨著國家交通基礎建設的迅速發(fā)展,對于橋梁建設也與日俱增,通過運用橋梁的可視化設計和橋梁信息管理系統(tǒng)可以提高設計、施工和管理的效率。本文的主要研究內(nèi)容包括了以下幾個方面:了解橋梁可視化及橋梁信息管理國內(nèi)外的發(fā)展動態(tài);學習圖形學的基本知識、參數(shù)化繪圖及一些編程知識;分析鋼筋混凝土橋梁的結(jié)構(gòu)和構(gòu)造,確定適合的建模方法。三維實體模型是建立三維可視化信息系統(tǒng)的基礎,通過對幾何造型及圖形處理基本理論和方法的研究,基于構(gòu)造實體幾何法的理論,用ObjectARX工具進行二次開發(fā),實現(xiàn)了三維實體自動建模、圖形變換和布爾運算等操作方法。橋梁的上部結(jié)構(gòu)主要有簡支梁、連續(xù)梁等,梁的截面主要有矩形、T形、箱形等形式,橋梁的下部結(jié)構(gòu)主要有基礎、墩身、托盤、頂帽和支撐墊石等結(jié)構(gòu)。通過分析橋梁的上、下部結(jié)構(gòu)構(gòu)造的特點,用拉伸建模、掃掠、放樣、旋轉(zhuǎn)等方法創(chuàng)建橋梁各部分結(jié)構(gòu)的模型。探討Auto LISP和ObjectARX工具對AutoCAD進行二次開發(fā)的方法,在AutoCAD繪圖環(huán)境下,創(chuàng)建圖層,進行顏色、線型、比例、文字樣式等設置,建立基本繪圖接口,進行二維參數(shù)化繪圖和立體建模。以箱梁和橋墩為例,進行了二維參數(shù)化繪圖和三維建模的研究。通過探討變截面梁沿導向線進行放樣建模,以各截面對應頂點的樣條曲線為導向線,實現(xiàn)連續(xù)箱梁的三維建模。通過繪制墩身上、下兩個截面,然后沿高度方向放樣建立橋墩模型。最后對橋梁管理信息系統(tǒng)開發(fā)進行了研究。通過研究橋梁信息管理系統(tǒng)所需要的可視化模塊、運營狀態(tài)模塊、數(shù)據(jù)分析和維護等模塊的組成和功能,初步建立橋梁管理信息系統(tǒng)。本文所研究的鋼筋混凝土橋梁可視化及信息管理系統(tǒng),可給相關管理部門提供了一個可視化的、直觀的三維的橋梁信息管理平臺。通過橋梁的參數(shù)化繪圖,可以極大地提高橋梁設計的效率,避免傳統(tǒng)繪圖時所產(chǎn)生的人為錯誤。橋梁的可視化為設計方案的比較和選擇以及工程量的概預算奠定基礎。橋梁的信息管理系統(tǒng)也為橋梁的后期運營、檢測、維護提供了必要的保障。
[Abstract]:In recent years, with the rapid development of national transportation infrastructure, the bridge construction is also increasing, through the use of visual bridge design and bridge information management system can improve the efficiency of design, construction and management. The main contents of this paper include the following aspects: understanding the development of bridge visualization and bridge information management at home and abroad, learning the basic knowledge of graphics, parametric drawing and some programming knowledge; The structure and structure of reinforced concrete bridge are analyzed, and the suitable modeling method is determined. The 3D solid model is the foundation of the 3D visualization information system. Through the research of the basic theory and method of geometric modeling and graphics processing, based on the theory of constructing entity geometry method, the secondary development is carried out with ObjectARX tool. Three-dimensional entity automatic modeling, graphic transformation and Boolean operation are realized. The superstructure of the bridge is mainly composed of simply supported beam, continuous beam and so on. The section of the beam is mainly rectangular T shape, box shape and so on. The substructure of the bridge mainly has foundation, pier body, tray, top cap and support cushion stone and so on. Based on the analysis of the characteristics of the upper and lower structure of the bridge, the models of each part of the bridge are created by drawing modeling, sweeping, lofting and rotating. This paper discusses the method of secondary development of AutoCAD by Auto LISP and ObjectARX tools. Under the environment of AutoCAD drawing, creating layer, setting up color, line, proportion and character style, establishing basic drawing interface, carrying out two-dimensional parametric drawing and stereoscopic modeling are discussed. Taking box girder and piers as examples, two-dimensional parametric drawing and three-dimensional modeling are studied. In this paper, the 3D modeling of continuous box girder is realized by using the spline curve of the corresponding vertices of each section as the guide line through discussing the layout modeling of the beam with variable section along the guide line. The pier model is built by drawing the body of the pier, the next two sections, and then lofting along the height direction. Finally, the development of bridge management information system is studied. The bridge management information system is established by studying the components and functions of the visual module, the operation state module, the data analysis and maintenance module, which are needed for the bridge information management system. The visualization and information management system of reinforced concrete bridges studied in this paper can provide a visual and intuitive three-dimensional bridge information management platform for relevant management departments. Through parametric drawing of bridges, the efficiency of bridge design can be greatly improved, and human error caused by traditional drawing can be avoided. The visualization of the bridge lays the foundation for the comparison and selection of the design scheme and the estimate of the engineering quantity. The information management system of the bridge also provides the necessary guarantee for the later operation, detection and maintenance of the bridge.
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U445
本文編號：2170494
[Abstract]:In recent years, with the rapid development of national transportation infrastructure, the bridge construction is also increasing, through the use of visual bridge design and bridge information management system can improve the efficiency of design, construction and management. The main contents of this paper include the following aspects: understanding the development of bridge visualization and bridge information management at home and abroad, learning the basic knowledge of graphics, parametric drawing and some programming knowledge; The structure and structure of reinforced concrete bridge are analyzed, and the suitable modeling method is determined. The 3D solid model is the foundation of the 3D visualization information system. Through the research of the basic theory and method of geometric modeling and graphics processing, based on the theory of constructing entity geometry method, the secondary development is carried out with ObjectARX tool. Three-dimensional entity automatic modeling, graphic transformation and Boolean operation are realized. The superstructure of the bridge is mainly composed of simply supported beam, continuous beam and so on. The section of the beam is mainly rectangular T shape, box shape and so on. The substructure of the bridge mainly has foundation, pier body, tray, top cap and support cushion stone and so on. Based on the analysis of the characteristics of the upper and lower structure of the bridge, the models of each part of the bridge are created by drawing modeling, sweeping, lofting and rotating. This paper discusses the method of secondary development of AutoCAD by Auto LISP and ObjectARX tools. Under the environment of AutoCAD drawing, creating layer, setting up color, line, proportion and character style, establishing basic drawing interface, carrying out two-dimensional parametric drawing and stereoscopic modeling are discussed. Taking box girder and piers as examples, two-dimensional parametric drawing and three-dimensional modeling are studied. In this paper, the 3D modeling of continuous box girder is realized by using the spline curve of the corresponding vertices of each section as the guide line through discussing the layout modeling of the beam with variable section along the guide line. The pier model is built by drawing the body of the pier, the next two sections, and then lofting along the height direction. Finally, the development of bridge management information system is studied. The bridge management information system is established by studying the components and functions of the visual module, the operation state module, the data analysis and maintenance module, which are needed for the bridge information management system. The visualization and information management system of reinforced concrete bridges studied in this paper can provide a visual and intuitive three-dimensional bridge information management platform for relevant management departments. Through parametric drawing of bridges, the efficiency of bridge design can be greatly improved, and human error caused by traditional drawing can be avoided. The visualization of the bridge lays the foundation for the comparison and selection of the design scheme and the estimate of the engineering quantity. The information management system of the bridge also provides the necessary guarantee for the later operation, detection and maintenance of the bridge.
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U445
【參考文獻】
相關期刊論文 前1條
1 戴學臻;邢磊;張維昕;趙勇;;我國橋梁管理系統(tǒng)軟件開發(fā)合理性構(gòu)建的思考與建議[J];中外公路;2008年06期
，本文編號：2170494
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