Method of Construction Control of Medium-Span Simply-Supported Tied Arch Bridge with Concrete Filled Steel Tubes

The construction method of superstructures of medium-span simply-supported tied arch bridge with concrete filled steel tubes was introduced.The control method during the construction of superstructures of the main bridge was summarized.The emulational analysis of the key process was programmed by use of structural analysis software,such as the lifting and erection of arch ribs and longitudinal girder,pumping concrete through steel tube and site construction of transbeam.The pulling control of pre-stressed cable and the reinforcing method of end cross beam in construction process was discussed.The construction method was optimized according to the analysis result.It shows the guide role of control method on the construction.From the results,it can be seen that the control method is applicable.