Design and Vibration Control Optimization of an Aluminum Alloy Deck System for a Pedestrian Cableway Bridge

DOI

10.2991/978-94-6463-793-9_63How to use a DOI?

Keywords

Pedestrian cableway bridge; Aluminum alloy deck system; Tuned Mass Damper

Abstract

To meet the stringent requirements of lightweight and durability in pedestrian aerial ropeway bridges, this study proposes a novel aluminum alloy deck system and conducts a comprehensive dynamic performance analysis using ANSYS finite element software. By comparing the dynamic characteristics of the proposed system with those of a conventional steel-wood composite deck, the vibration response and walking comfort under pedestrian-induced excitations are systematically evaluated. The results indicate that, relative to traditional systems, the aluminum alloy deck significantly enhances the global stiffness and fundamental frequency of the structure, demonstrating superior vibration control capabilities. However, certain deficiencies remain in terms of pedestrian comfort and vibration mitigation performance, necessitating further optimization. To address these issues, tuned mass dampers (TMDs) are introduced as an effective vibration control strategy. Various TMD configurations are designed and assessed with respect to their efficiency in reducing both lateral and vertical vibrations, as well as their practical feasibility in construction. Finite element modeling is employed to evaluate the damping effectiveness of each scheme. Findings reveal that symmetrically arranged lateral TMDs can effectively suppress lateral vibrations, while placing TMDs at locations with peak vertical displacements significantly improves vertical vibration reduction. The optimized TMD layout not only ensures constructability but also substantially enhances the overall dynamic performance and walking comfort of the aluminum alloy deck system. This study confirms the feasibility and superiority of aluminum alloy deck systems in lightweight, durable bridge applications and offers a practical and theoretical framework for pedestrian-induced vibration control in ropeway bridge engineering.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Tianhu Jing
AU  - Yu Yan
PY  - 2025
DA  - 2025/07/28
TI  - Design and Vibration Control Optimization of an Aluminum Alloy Deck System for a Pedestrian Cableway Bridge
BT  - Proceedings of the 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025)
PB  - Atlantis Press
SP  - 749
EP  - 765
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-793-9_63
DO  - 10.2991/978-94-6463-793-9_63
ID  - Jing2025
ER  -