The Engineering Phase Analysis Base On Continuous Girder Birdge Transformed From Simply-supported Structure

Along with our province highway mileage increases ceaselessly, appeared a largenumber of medium span bridge applications, as an engineer, if can review the whole processof the project, from the project to the completion of the project, the designers will bebenefited. This paper relies on the Yanji Expressway to the region from the project feasibilitystudy stage, the project implementation stage are analyzed, a simple supported-continuousbridge at different stages of the content through the whole process of analysis. Through thissimple supported-continuous bridge the research, in the preliminary design and constructiondrawing stage of the upper, lower, hydrologic calculation calculation calculation andconstruction drawings and other aspects, according to the characteristics of bridge structure,the construction scheme and construction sequence, and how to effectively strengthen themanagement, to project cost control.Simple supported-continuous bridge with prestressed concrete continuous beam bridgeis compared, not only the construction speed, convenient erection, and the constructionprocess is mature, the construction quality is easy to be guaranteed, and the cost is low much,is a kind of better construction method and the structural system. Overcome only withordinary steel bar connection of prestressed and Nonprestressed cracking and deformation ofdifferent stress structure and stress of coordination issues, strengthen the connection of mainbeam negative moment area of compressive stress reserve, makes the bridge structure for agood performance, good overall performance.This paper combined with practical work, are discussed below(1) according to the almost continuous bridge structure and combining thecharacteristics of the engineering, bridge and bridge type scheme comparison, determine theform of bridge(2) using the" bridge"," MIDAS" software to carry on the bridge, lower calculation,according to the actual terrain, topography, hydrology calculation, clearance requirementsapply vbbridge control design scheme. (3) according to the actual situation of construction organization, arrangement, with areasonable construction technology, effectively strengthen cost control, ensure constructionquality.(4) at present, Wangqing Yanji freeway to the bridge construction is completed, theDepartment of the bridge were satisfied, fully proved the reliability of the project.Through the above a few points of discussion, for this kind of bridge design andconstruction to provide a useful reference.