Research On Construction And Control Technology Of Joining Single Cable Plane Cable-stayed Bridge

Based on single cable plane cable-stayed bridge construction, monitoring, and thekey problems in closed, east gate bridge of Yangtze river as the engineering background,using the finite element analysis as the means, first of all, for the whole course ofconstruction has carried on the simulation, gives the main construction phase, in anattempt to analyze the maximum cantilever state, the stability of the single cable planecable-stayed bridge is studied in water gate (east Yangtze river bridge) the closuresegments of the rationality of the preliminary construction scheme, the closureconstruction plan of the improvement measures were put forward and the correspondingmonitoring technology solutions. In this paper, specific works are as follows:(1) through reading a large number of literature, understanding and thecharacteristics of single cable plane cable-stayed bridge are introduced, especially thesingle cable plane steel truss girder of cable-stayed bridge construction and closuretechnique characteristics; From the construction technology and monitoring technologyand the development of the material, this paper expounds the development trend ofsingle cable plane cable-stayed bridge and fold the development trend of constructioncontrol.(2) to establish the whole bridge finite element model of the east gate Yangtzeriver bridge, construction and closure segments of the whole bridge closure in order tosimulate different bar and analyses the internal force of single cable plane cable-stayedbridge construction is the key process and the key working procedure in an attempt to isalso given.(3) Construction phase of the maximum cantilever state stability analysis, thecritical load is obtained under the coefficient and the critical load of buckling mode.Closure bar (4) of different order, influence factors and sensitivity are analyzed.Discusses the different bar closed in order to the influence of elevation after closure.(5)The east gate of the Yangtze River bridge closure monitoring methods arediscussed in this paper, the contents, methods and results of monitoring are analyzed.(6) Finally, this paper summed up and joining of single cable plane cable-stayedbridge construction technology, the two target for monitoring technology into work.