Single Box Single Room Wide Box Girder Space Mechanical Behavior Analysis

In recent years,the traffic demand is increasing,more and more wide box girder of continuous rigid frame,including single box single chamber width of box girder cross section and the designers and construction personnel is quite favored by cross section type,single box single room wide box girder continuous rigid frame bridge design not only convenient,and the construction is convenient,can greatly shorten the construction period.But wide box girder of continuous rigid frame bridge and the corresponding problems,the main reason is the single box single room wide box girder of continuous rigid frame bridge space mechanics behavior research is not thorough,this article mainly discusses the single box single room wide box girder of continuous rigid frame bridge space mechanical behavior for detailed analysis.To catch the water bridge as the background using Midas FEA and Midas Civil finite element software,this paper compares and analyzes analysis wide box girder of continuous rigid frame bridge several characteristics section: midspan root section,across a quarter in cross section,in the midspan cross section,the edge across different root section and cross section in space mechanical behavior,internal force of horizontal transmission mechanism and the shear lag effect.Reasonable width of box girder bridge structure analysis method is put forward.Relying on the catch water bridge construction,wide box girder structure stress test study,by comparing the theoretical value with the measured values,test and verify the reliability of wide box girder structure analysis method.Through the establishment of whole model wide box girder bridge space,wide box girder structure parameters of the study.Based on wide box girder bridge structure space mechanical behavior analysis,put forward the proposal for wide box girder of structure design.Through the study of this paper,a single room for single box wide box girder of continuous rigid frame bridge,reasonable analysis method and the wide box girder of continuous rigid frame bridge space mechanical properties,have been verified by test,study and put forward the reasonable width of box girder cross section structure parameters,for the single box single room wide box girder continuous rigid-frame structure design to provide the reference.This paper presents a single box single room wide box girder continuous rigid frame bridge space mechanical behavior analysis,single box single room for the future wide box girder of continuous rigid frame bridge design has important theoretical significance and practical value.