Publication detail

Tuned Mass Dampers for Vibration Control of Footbridges from an Architectural Point of View

KUČERA, J. NEČAS, R. KOLÁČEK, J. BEZRUČOVÁ, K. KUČEROVÁ, M.

Original Title

Tuned Mass Dampers for Vibration Control of Footbridges from an Architectural Point of View

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

Pedestrian comfort, subtle design, minimizing the number of fixed supports of the footbridge or material saving. These are the key arguments for integrating Tuned Mass Dampers (TMD) into the bridge project. The aim is to protect people and bridge structure from vibration and damage. The following paper presents findings from the design, production and tuning of mass dampers, their optimization possibilities and benefits for bridge engineering. From an architectural point of view, the TMD should be fully or at least partially integrated into the bridge design in order not to disturb the overall bridge appearance from the frog or side perspective. There are several ways to achieve this, from the materials, covers or colors used, over the TMD design aligned with the bridge design, to a special TMD chamber within the bridge deck to house the damper. The main challenges are extremely slender bridge structures or structures densely interrupted by beams. The goal is to marry form and function. This paper presents best practice from the Czech Republic and Slovakia regarding TMD function and form. It concerns the ˇStvanice footbridge over the Vltava River in Prague, the footbridge over the Jizera river in Mlad´a Boleslav connecting ˇSkoda Auto with a meadow, footbridge in B´ılovice nad Svitavou with extremely slender bridge structure and the bicycle bridge over the high-speed road in Bansk´a Bystrica, Slovakia. Dynamic tests including measurements were carried out before and after the installation of the dampers. The dynamic monitoring of the compliance of modal parameters was performed using Operational Modal Analysis (OMA). The evaluation of the dynamic tests also includes the response to pedestrian effects (comfort criteria) and the determination of the logarithmic decrement of the damping.

Keywords

Tuned mass damper, pedestrian bridge, dynamic analysis, Operational Modal Anal-ysis, OMA

Authors

KUČERA, J.; NEČAS, R.; KOLÁČEK, J.; BEZRUČOVÁ, K.; KUČEROVÁ, M.

Released

20. 11. 2024

Location

Munich, Germany

Pages from

377

Pages to

389

Pages count

13

URL

https://doi.org/10.14459/icbdb24

BibTex

@inproceedings{BUT193396,
  author="Jiří {Kučera} and Radim {Nečas} and Jan {Koláček} and Kristína {Bezručová} and Michaela {Kučerová}",
  title="Tuned Mass Dampers for Vibration Control of Footbridges from an Architectural Point of  View",
  booktitle="BRIDGES IN DANUBE BASIN
New trends in design, construction, assessment,
monitoring and rehabilitation of large and medium span bridges",
  year="2024",
  pages="377--389",
  address="Munich, Germany",
  url="https://doi.org/10.14459/icbdb24"
}