Abstract
Over-track buildings above metro depots have become common in megacities due to urban land shortages. The transmission of vibrations into the over-track buildings during routine train operations has the potential to adversely impact the occupants in terms of perceptible vibration and noise. There is a need to quantify the potential impacts before construction for planning and design purposes. Train-induced vibration measurements were carried out on a six-story over-track building at the Luogang metro depot in Guangzhou, China, which is located adjacent to the tracks. The measurements were used to develop a data-driven cascaded state-space model, which can be applied to planned over-track buildings located in track areas to predict and assess whether train-induced vibrations would adversely affect the buildings’ future occupants. Vibration levels in the platform of the building’s columns were used as inputs to the models, thereby avoiding the complexity of modeling the transfer behavior of the platform. The predicted vibration levels corresponded with measurements in the existing building. This comparison validated the use of the model for future residential buildings where the predictions indicate that the impacts on its occupants will be within the applicable criteria.
Highlights
Urban rail transit, with the advantages of large capacity and lower energy consumption, is an efficient solution to road traffic congestion and environmental pollution in metropolitan cities
In order to predict train-induced vibrations within future second stage over-track buildings and assess vibration impacts prior to construction, this paper develops and validates the cascaded state-space model based on the measurements from a first stage over-track building at Luogang metro depot in Guangzhou, China
This paper proposed a data-driven cascaded state-space model for predicting traininduced vibrations within over-track buildings at metro depts
Summary
With the advantages of large capacity and lower energy consumption, is an efficient solution to road traffic congestion and environmental pollution in metropolitan cities. Depots function as a metro system’s base for cleaning, storing, testing, and maintaining trains, covering a large land area. In order to balance the problem of urban land shortage and the construction of depots and to provide financial support to the sustainable operations of urban rail transit systems, exploiting air space over metro depots with over-track buildings is becoming a modern development trend [3]. The distances between depots and nearby residential buildings are decreasing. Given these facts, the side impact of train-induced perceptible vibrations and noise on human comfort and the performance of vibration-sensitive equipment becomes a social concern [4]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
