[en] Hanger vibrations are a known issue in many modern suspension bridges, often linked to innovative hanger designs. To address these vibrations, Stockbridge dampers—originally used in high-voltage cables—have been adapted for structural engineering. However, frequent cases of damper failure have been reported globally, with the root causes still undetermined. This study investigates an asymmetric Stockbridge damper installed on the hangers of a long-span suspension bridge in northern Norway. Experimental testing was conducted on the complete damper as well as on its separated top and bottom masses to assess its performance across various vibration frequencies and amplitudes. The findings provide insights into the damper’s behavior, which can support numerical modeling and inform future design strategies for Stockbridge dampers in structural applications. This work contributes to optimizing damper installation and enhancing the effectiveness of vibration mitigation in bridge structures.
Disciplines :
Civil engineering
Author, co-author :
Bacci, Giacomo
Øiseth, Ole; NTNU - Norwegian University of Science and Technology
Petersen, Øyvind W.; NTNU - Norwegian University of Science and Technology
Denoël, Vincent ; Université de Liège - ULiège > Département ArGEnCo > Analyse sous actions aléatoires en génie civil
Language :
English
Title :
Experimental study of an asymmetric Stockbridge damper
Publication date :
2025
Event name :
European African Conference on Wind Engineering
Event organizer :
NTNU Norwegian University of Science and Technology
Event place :
Trondheim, Norway
Event date :
16-19 June 2025
Audience :
International
Main work title :
Proceedings of the 9th European-African Conference in Wind Engineering
Publisher :
Norwegian University of Science and Technology, Trondheim, Norway
