Structural control of high-speed railway bridges by means of fluid viscous dampers
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Bibliografische Angaben
| Autor(en): |
Sarah Rådeström
(KTH Royal Institute of Technology, Stockholm, Sweden)
Mahir Ülker-Kaustell (Tyréns AB, Stockholm, Sweden) Andreas Andersson Viktor Tell (Tyréns AB, Stockholm, Sweden) Raid Karoumi (KTH Royal Institute of Technology, Stockholm, Sweden) |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Veröffentlicht in: | IABSE Congress Stockholm, 2016 | ||||
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| Seite(n): | 2536-2543 | ||||
| Anzahl der Seiten (im PDF): | 8 | ||||
| Jahr: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.2535 | ||||
| Abstrakt: |
The dynamic response of structures is an important aspect to consider, especially at resonance. Particularly, bridges traversed by trains are at risk, due to the repeated loading with regular interval from the axle and bogie spacings. If the risk of resonance is not accounted for in the design, the vertical acceleration of the bridge deck may exceed the allowed limits of comfort and safety. Hence, alternative, sustainable measures for reducing the vibrations in bridges are required to solve these challenges. This paper presents studies of fluid viscous dampers used to control the dynamic behaviour of high-speed railway bridges. A finite element model is used to investigate the response of an existing bridge, both prior to and after the installation of dampers, and the influence of some parameters on the efficiency of the dampers are analysed. The results from this paper show that the vertical deck acceleration is sufficiently reduced using the proposed solution. |
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| Stichwörter: |
Brücken Resonanz Schwingungen
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