Device and method for inhibiting vortex-induced resonance of girder of large-span highway-railway double-layer truss girder

• Main Authors: CHEN ZHENGQING, LIU ZHIWEN, LIU ZHENBIAO, ZHOU WEI, WEN WANGQING, YIN TAO, XIA ZHENGCHUN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: ASSEMBLY OF BRIDGES; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; FIXED CONSTRUCTIONS; OR VIADUCTS

The invention relates to the technical field of double-layer truss girder bridge vortex-induced resonance control, in particular to a device and method for restraining large-span highway and railway double-layer truss girder main girder vortex-induced resonance. The outer side of the sidewalk handrail upper base is horizontally connected with an air nozzle upper top plate, an air nozzle upper inclined plate and an air nozzle lower inclined plate are arranged on the outer side of the air nozzle upper top plate, the air nozzle lower inclined plate is connected with an upper chord bottom plate extending plate, and the upper chord bottom plate extending plate is connected with a lower chord bottom plate extending plate. An included angle of 70-80 degrees is kept between the upper tuyere inclined plate and the lower tuyere inclined plate; a small tuyere composed of the tuyere upper top plate, the tuyere upper inclined plate and the tuyere lower inclined plate extends out of the width a by 1-1.2 m. A traditional co