The Automatic Generation Technology Of Prestressed Concrete Continuous Beam Calculation Command Flow Based On The Graphic Flow

Prestressed concrete continuous girder bridge has been widely adopted,with the excellent features such as large Spanning capacity, small deformation, attractive appearance and low maintenance cost, and the hanging basket cantilever construction method is the main construction method. At present, finite element softwares are usually used on solving the bridge structure questions in the calculation of design and construction, such as Bridges Dr, MIDAS/Civil, ANSYS and so on. Though such software can solve the problem of modeling and computing the cantilever construction effectively, but it always exit the result thar main adopts is menu or command flow patterns, which could not fully reflect calculation engineering characteristics and exist the problem of low efficiency in establishing the model.Graphic flow technology is a new technology in solving engineering problem and establishing the model. The technical requires researchers have a in-depth analysis and refining in global and local characteristics, mechanical characteristics, process characteristics and experts solving technology of the engineering problems. Graphic flow technology decomposes the modeling process into a series of sub steps for easy implementation, and uses several functions to simulate the graphics object, which turns the solving and modeling process of engineering problem into a kind of realization process about creating, operating and inferring the function graphics object.And it is easy to implement the simplification, integration and high efficiency in solving and modeling the engineering problem.On the basis of in-depth analysis and research of the calculation law and characteristics about prestressed concrete continuous girder bridge, this article use the RBCCE as the platform, use the graphic flow technology as the solution of calculation and modeling of the cantilever construction and use the visualization programming platform of Delphi as the development tool. Graphic flow technology turn the complex process of computing the cantilever construction into several functional graphics object, and realize the modeling of prestressed concrete continuous girder bridge by creating, operating and inferring the function graphics, and at last it will realize the computational ptocess of the bridge cantilever construction with the help of MIDAS by turn the functional graph into the command flow of MIDAS, which is international famous. Development results show that the graphic flow modeling technology is feasible and efficient in achieving the bridge and modeling.