Propagation Law of Structural Vibration in Large Transportation Hub and Vibration/Seismic Isolation Measures

Abstract

[Objective] Large-scale integrated transportation hub structure is a vital component in urban layout, characterized by significant investment, extensive construction scale, and diverse functionalities. Ensuring the resilience of such buildings to seismic forces, preventing damage while preserving functionality, and providing sufficient safety and comfort under the influence of complex multidimensional traffic are engineering challenges of practical significance. Thus, it is necessary to sort through and summarize relevant literature research on this subject. [Method] The environmental vibration issues caused by various traffic loads along routes and buildings are reviewed. Additionally, the research status of vibration/seismic isolation devices commonly used in transportation hub structures is explored. The research achievements of scholars in China and worldwide in vibration response measurement, vibration prediction simulation, and vibration propagation laws are summarized. Based on the limitations of existing researches, the future research directions in environmental vibration control for transportation hub structure s are discussed. [Result & Conclusion] There is relatively limited research on three-dimensional composite vibration/seismic isolation globally, with a main focus on metro vibration isolation along rail transit lines or superstructures. Research primarily concentrates on experimental studies of the mechanical performance of the proposed vibration/seismic isolation device and vibration/seismic isolation effects. Currently, theoretical and technical research on three-dimensional composite vibration/seismic isolation is not deep enough, and its application is not yet widely adopted or developed into a system approach. Key issues, such as the development of related devices, vibration reduction mechanisms, mechanical performance, theoretical models, remain crucial problems that urgently need resolution.

Keywords

• transportation hub
• vibration propagation law
• vibration/seismic isolation measure