The Loading Process Research Of The Prefabricated Structural Element Continuous Rigid Frame Bridge

Bridge section prefabricated assembly technology has been widely used in Europe, America and Hong Kong, Guangzhou metro line 4 first large-scale applied section prefabricated assembly technology, but the bridge structure system is beam form, bridge linear control is relatively simple.For the application of bridge section prefabricated in rigid frame Bridges system is rare both at home and abroad。Guangzhou metro line 6 bridge"XunFengGang ~ ShaHeXi"is the system of double thin-wall piers rigid-frame bridge, the piers used Short Beb Match Mast,the beam departments adopt section prefabricated assembly technology, usefal experiences suspensory assembles them on-site.During the construction process it has the conversion of first simply-supported, after continuous, and after rigid-frame structure of the system, on the structural deformation control is much more complicated than general continuous rigid frame Bridges. Therefore the loading process research of the prefabricated structural element continuous rigid frame bridge is particularly important。The paper is carrying out based on line 6 bridge structure forms of design and construction difficulties for emphasis. First, according to the design parameters of the correction and the theoretic values influence of the actual parameters on the analysis of sensitivity in theoretical analysis, we can reach a conclusion, the theoretic values influence is not sensitive, caused by the difference between the design parameters and practical parameters, then, the parameters of the design stage are reasonable; Through the comparison of theoretical analysis and design test data results of construction stage, the deviation between test data and the design value is within permissible range, then, the calculation method of the design stage is reasonable, the results meet the design requirements; The linear of the prefabricated structural element continuous rigid frame bridge meets the design requirements basically, that prove the application of Short Beb Match Mast is successful in the line 6.The paper,by mastering the stress when bridge constructing in the process of structural behavior bridge system,testing the design and construction scheme from tests angle, accumulates experience for the smooth construction of real bridge and provides the basis for future similar structure to design。...