公开(公告)号：US20230078163A1

公开(公告)日：2023-03-16

申请号：US17777862

申请日：2021-06-01

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuyou XU ,  Weizhi ZHU ,  Bo WANG ,  Wenjie LI ,  Gao LIU

IPC: E04B1/98 ,  E01D19/00 ,  F16F15/067

Abstract: The present invention provides a semi-active vibration absorption and energy dissipation control system for restraining vortex-induced vibration of bridges. It has the advantages and characteristics that: (1) springs are horizontally placed at the bottom of a beam, and lengths are not limited, so that the frequency requirement of a low-frequency target can be satisfied; (2) different target frequencies can be realized through different combinations of a plurality of springs connected in series and in parallel, so that multi-order vortex-induced vibration control needs are satisfied; (3) the springs made of fiber reinforced nylon materials are adopted, and are notched, so that a frequency implementation range can be greatly widened; (4) the material and the form of a mass body are not limited, and a water bag can be used, which has low cost and is convenient for disassembly, assembly and mass adjustment.