Span-adjusting pier for high-speed railway

The utility model relates to the technical field of railway bridges, in particular to a high-speed railway span adjusting pier which is used for multi-control-node hole span arrangement of a high-speed railway extra-long bridge and is characterized in that the high-speed railway span adjusting pier comprises a pier body and a top cap, the top cap is arranged above the pier body, and a pier top rail bearing beam is arranged in the middle of the top cap; in the bridge direction of the bridge, supporting positions used for erecting adjacent simply supported beams are arranged on the top caps on the two sides of the pier top rail bearing beams respectively, and the adjacent simply supported beams can be erected and supported on the supporting positions. The device has the advantages that the problem of continuous multi-control-node hole span arrangement of a high-speed rail extra-long bridge is solved very flexibly and efficiently by adjusting the length of the pier top rail bearing beam and adjusting the number