CONSTRUCTION CONTROL RESEARCH OF CONCRETE-FILLED STEEL TUBULAR TIE-BAR ARCH BRIDGE

The stresses(strains) and the deformation monitoring points were arraged during the bridge construction.According to the comparison of measured values and calculated, construction control measures were being perfected constantly.On the condition that the stability meet the requirement, the stress and distortion of tie-bars, arch ribs, cross beams and tubular rods were mainly monitored, at the same time, the construction structural behavior were controlled and ensured the success of bridge.According to the study focused on the paper, it will be provide the reference and basis for the CFST tie-bar arch bridge construction control.