Important Aspects Influencing the Dynamic Parameters of Slender Pedestrian Bridges Formed by Stress Ribbon Structure

Abstract:

The monitoring of dynamic parameters of slender bridge structures is becoming of particular interest in terms of their possible use in determining their structural condition, or possibly as one of the parameters for their long-term monitoring. The method for monitoring dynamic parameters is relatively new and practically unexplored. First of all, it is necessary to find out with certainty how the dynamic parameters of slender bridge structures change, for example, with changes in temperature, the magnitude of the prestressing force, or how they change with changes in discontinuous mass (e.g. overlaying or stripping of pavement layers). The paper summarizes the important aspects that can affect the modal parameters - natural frequencies and their shapes. The above listed influences and their impact on the structure were investigated on real structures formed by stress ribbon.

• Periodical: Advances in Science and Technology (Volume 147)
• Pages: 21-32
• DOI: https://doi.org/10.4028/p-4tZroN
• Online since: April 2024
• Authors: Jan Kolacek*, Radim Necas, Marek Velesik
• Keywords: Effect of Discontinuous Mass, Effect of Prestressing Force, Effect of Temperature, Modal Analysis, Natural Frequencies and Shapes, Stress Ribbon Pedestrian Bridges

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