Vertical Swivel CFST Arch Bridge Construction Control Simulation

Since the1990s, in our country, concrete steel arch bridge made rapid development.Along with the increasing of concrete filled steel arch bridge span and the increase in thenumber of China’s steel concrete arch bridge in construction technology has reached a certainlevel, however, is lagging behind with respect to the theoretical study, the domestic steel archbridge is currently no unified sound concrete construction technology norms that CFST ArchBridge is often unsystematic, especially for simulation computing simulation of concrete pipelack depth. Therefore, to study the structure is not only a need for theoretical development ofconcrete filled steel arch bridge, is the urgent requirement of the engineering profession.For swivel bridge construction, it is a construction method without stent, in terms ofthrough valleys, rivers and across both lines, with considerable superior capabilities.Construction technology for the early twist, mainly for construction in the mountains acrossthe valley or river bridge, and mostly arch.In this paper, relying on science and technology projects in Hebei Province Departmentof Transportation "super wide arch across the steel concrete construction monitoring basketkey technology research," the main contents are:(1) elaborated the principle twist steel arch bridge construction control basket, featuresthe construction process, the key technology and the scope of the swivel construction.(2) the establishment of spatial finite element model of the construction processsimulation based on actual construction, the steel arch bridge of concrete swivel constructionprocess simulation analysis, performance analysis twist force structure during construction,the construction process to predict stress and deformation of development situation andprovide guidance to the practical and theoretical basis for the construction control.(3) In order to ensure that the final bridge into a linear and force the state to meet thedesign requirements of Hutuohe Bridge established a real-time monitoring system. Bysimulating this whole twist CFST arch bridge construction process analysis, the calculationresults with field monitoring data were analyzed and compared, and its value in goodagreement with the measured results of theoretical. This indicates that the finite elementanalysis method used in this paper can better reflect the actual construction twist. SwivelConstruction Control Simulation analysis of the filter Tuo River Bridge constructionmonitoring can play a better role in guiding.