Structural vibration of tuned mass damper-installed three-span steel box bridge

• Published in: The International journal of pressure vessels and piping 2001-10, Vol.78 (10), p.667-675
• Main Authors: Jo, Byung-Wan, Tae, Ghi-Ho, Lee, Du-Wha
• Format: Article
• Language: English
• Subjects: Applied sciences; Buildings. Public works; Computation methods. Tables. Charts; dampers; Deflection; Degrees of freedom (mechanics); Dynamic amplitude; Exact sciences and technology; Fundamental areas of phenomenology (including applications); loading; Physics; Solid mechanics; Steel beams and girders; Steel box bridge; Steel bridges; Structural analysis. Stresses; Structural and continuum mechanics; Surface roughness; Torsional stress; Tuned mass damper; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Vibrations (mechanical); Vibrations and mechanical waves
• ISSN: 0308-0161; 1879-3541
• DOI: 10.1016/S0308-0161(01)00081-3

To reduce the structural vibration of a three-span steel box bridge, a three-axis–two degree of freedom (DOF) system is adopted to model the mass effect of the vehicle; and the kinetic equation considering the surface roughness of the bridge is derived based on the Bernoulli–Euler beam ignoring the torsional DOF. The effects of tuned mass damper (TMD) on the steel box bridge show that the system is not efficient in reducing the maximum deflection, but it does efficiently reduce the free vibration of the bridge. It proves that the use of TMD on the bridge brings more efficiency in controlling the dynamic amplitude rather than the maximum static deflection.