Beam Bridge Structural Analysis, Model Tests And Procedures Developed

According to the study status of curved bridge, which has been widely used in freeway, crossroad and viaduct, In this paper, a curved bridge analysis model is built using the method of support equivalent to deal with the sidelong supporting. Through the studying of reinforced concrete curved bridge model testing, we get to know the behavior of curved bridge under the load, and which could be acted as a guideline for curved bridge. We also get the relationship between the first frequency and the loading rate by dynamic testing of concrete curved bridge model, which could be a reference to structural performance evaluating of curved bridge. Applying the Curved Beam Finite Element Method, We build the practical analysis method and CCBS(Concrete Curved Bridge analysis System).In this system, using the modularization method, program is compiled in the environment of Fortran Power Station 4.0 and Visual Basic 5.0. Using the diatropic distributing theory, We can analysis the multi-Girders curved bridge. The results of analysis are given in the environment of AutoCAD via DXF(Drawing Exchange File). According to the concept of combination influence line, We can realize the dynamic loading easily through this system. We also compared the results of the analysis of reinforced concrete curved bridge model between SAP93 and CCBS and represent the reliability of the system. In the end of the paper, a practical bridge (5X20.OOm) is given as an example to introduce the using method of CCBS, which also represent the convenience and reliability of CCBS. The research in this paper formed elementary frame of CCBS, which could make reference to the analysis of curved bridge and also lay a foundation for the further development of CCBS.