Underwater damper for arched steel tower in construction condition

The utility model discloses an underwater damper for an arched steel tower in a construction condition. The underwater damper for the arched steel tower in the construction condition is one of a drilling type, a closed opening type and an opening type, which are symmetrical structures: (1) the drilling type is as follows: drilling in the motion direction of the damper, utilizing water flowing through a pipeline to form turbulence, and increasing resistance with shearing stress of the pipe wall; (2) the closed opening type is as follows: punching on the surface of a cubic box body with a hole inside, un-punching on the top surface and punching on the other five surfaces so as to generate generates turbulence inside the box body by water flow to consume energy; (3) the opening type is as follows: using an un-flat surface including an I type or a Chinese character Wang shape, so as to increase disturbance of the damper to the flow field and increase the damping. The acceleration of a spring oscillator system ere