Bridge Visualization Of Reinforced Concrete And Information Management Research

In recent years, with the rapid development of the national transportation infrastructure, for bridge construction is also increasing, through the use of visual design bridges and bridge information management system can improve the design, construction and management efficiency. The main content of this paper includes the following aspects:Learn the bridge visualization and bridges information developments of abroad; Study the basics of graphics, parametric drawing and some programming knowledge; analysis of the structure and construction of reinforced concrete bridges, to determine the appropriate modeling approach.Three-dimensional solid model is the basis for the establishment of a three-dimensional visual information systems, through the basic theory and method of geometric modeling and graphics research, based on the theory of constructive solid geometry method, using ObjectARX secondary development tools to achieve the automatic three-dimensional solid modeling, graphics transformation and Boolean operations such methods.The main bridge superstructure has simply supported beam, continuous beam, etc., mainly cross-section beam is rectangular, T-shaped, box, etc.. The lower part of the main structure has the bridge foundation, pier shafts, trays, top hat and a support pad stone structure. Through the analysis of features on the bridge upper and lower constructed with stretch modeling, sweep, loft, rotation and other methods to create a bridge between the various parts of the structure model.Discussion the approach of AutoLISP and ObjectARX for AutoCAD secondary development. In the AutoCAD drawing environment, create a layer, color, line, proportion, text styles, such as settings. Build the basic graphics interface, make two-dimensional parametric drawing and three-dimensional modeling.With the examoles of box girders and piers, conducted a study of two-dimensional parametric drawing and three-dimensional modeling. Stakeout modeled by exploring variable cross beams along the guide wire to each section corresponds to the vertex of the spline-oriented line, continuous box girder 3D modeling. By drawing upper and lower two sections of the pier, and then build the piers along the height direction loft model.Finally, bridge management information system development is studied. Through research the needed to bridge information management system of composition and function to visualization module, operational status of the module, data analysis and maintenance module, the initial establishment of bridge management information system.This paper studied the reinforced concrete bridge visualization and information management system, for the relevant authorities to provide a visual, intuitive three-dimensional bridge information management platform. Through parametric drawing of bridges, can greatly improve the efficiency of bridge design, to avoid human error arising from traditional drawing. Bridge visualized make the foundation’s to compare and choose the the design and engineering budget estimate. Bridge information management systems for post-operation of the bridge, testing, maintenance, provides the necessary protection.