Construction Technology of Cast-in-place Box Girder with Bailey Beam and Full Space Support
The construction of cast-in-place box girders for the third and fourth spans of Guangdong North Extra Large Bridge was simulated using Ansys finite element analysis software.Through comparative analysis of different support structures and combined with geological environment characteristics,the deformation problem at the connection point was studied.It was found that reducing the span of the Bailey beam is an effective improvement plan,which can reduce vertical deformation and improve construction quality.There is a certain gap in the overall stability of reinforced Bailey beams,while the transverse encrypted Bailey beams perform better in reducing vertical deformation.
Bailey beamfull space supportcast-in-place box girder