Parametric vibration of stay cable and vibration control
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
A stay cable might undergo large amplitude vibration excited by deck and pylon when the frequency of deck or pylon is twice as the natural frequency of the cable, so called parametric vibration.
Several analytical models are studied to observe the behavior of a cable when parametric vibration occurs and verified by the results obtained from ABAQUS. They are also used to investigate significance of cable-deck interaction phenomenon. Parametric study has been conducted to investigate the effect of excitation, static tension, damping of cable, viscous damper and tuned mass damper (TMD) on cable vibration.
As concluded, cable-deck interaction is significant to induce cable vibration. Viscous damper can mitigate vibration when the excitation is small. As for large excitation, TMD has an advantage.
Place, publisher, year, edition, pages
Trita-BKN-Examensarbete, ISSN 1103-4297 ; 369
cable-stayed bridge, Jindo Bridge, parametric oscillation, deck-cable interaction, finite element analysis, vibration control
IdentifiersURN: urn:nbn:se:kth:diva-125336OAI: oai:DiVA.org:kth-125336DiVA: diva2:639636
Karoumi, RaidLeander, John