Walking erecting and disassembling type trestle construction method

The invention provides a walking erecting and disassembling type trestle construction method. The walking erecting and disassembling type trestle construction method comprises the steps that S100, a trestle and a construction platform are erected; s200, after the trestle and the construction platform are erected, the newly-built bridge structure is constructed according to planned procedures and construction period organizations, and the construction sequence of the bridge structure is compact advancing in the direction of the trestle erecting end; s300, trestle dismantling sections are determined, and trestles of the trestle dismantling sections are dismantled in a span-by-span mode; s400, the trestle materials dismantled from the trestle dismantling section are transferred to the trestle erecting end for trestle erecting; and S500, the steps S100 to S400 are repeated till construction of the bridge is completed. By adopting the construction method of S100-S500, the engineering quantity of turnover materials