Research on the Construction Sequence of Arch and Beam in a Wavy Steel Box Arch Bridge
In order to analyze the influence of construction sequences of beam and arch on the key stressed components of a wavy steel box arch bridge in the completed state,the research uses the finite element software midas Civil to establish the fi-nite element model of the whole bridge,compares and analyzes the stress of the key stressed components in the completed state of the arch bridge under different construction sequences,and defines the reasonable construction scheme of beam and arch.The results show that the stress safety of the main beam is significantly improved when the construction scheme of beam before arch is adopted.In the different construction schemes,the stress difference of steel box arch,concrete arch and sus-pender is small.Considering the actual situation of the construction site,construction safety and construction period and other factors,the construction scheme of beam before arch is better than other schemes.