Vibration Response Characteristics of the Cross Tunnel Structure
Joint Authors
Lai, Jinxing
Qiu, Junling
Wang, Junbao
Chen, Jianxun
Wang, Kaiyun
Niu, Fangyuan
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-29
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
It is well known that the tunnel structure will lose its function under the long-term repeated function of the vibration effect.
A prime example is the Xi’an cross tunnel structure (CTS) of Metro Line 2 and the Yongningmen tunnel, where the vibration response of the tunnel vehicle load and metro train load to the structure of shield tunnel was analyzed by applying the three-dimensional (3D) dynamic finite element model.
The effect of the train running was simulated by applying the time-history curves of vibration force of the track induced by wheel axles, using the fitted formulas for vehicle and train vibration load.
The characteristics and the spreading rules of vibration response of metro tunnel structure were researched from the perspectives of acceleration, velocity, displacement, and stress.
It was found that vehicle load only affects the metro tunnel within 14 m from the centre, and the influence decreases gradually from vault to spandrel, haunch, and springing.
The high-speed driving effect of the train can be divided into the close period, the rising period, the stable period, the declining period, and the leaving period.
The stress at haunch should be carefully considered.
The research results presented for this case study provide theoretical support for the safety of vibration response of Metro Line 2 structure.
American Psychological Association (APA)
Lai, Jinxing& Wang, Kaiyun& Qiu, Junling& Niu, Fangyuan& Wang, Junbao& Chen, Jianxun. 2016. Vibration Response Characteristics of the Cross Tunnel Structure. Shock and Vibration،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1120124
Modern Language Association (MLA)
Lai, Jinxing…[et al.]. Vibration Response Characteristics of the Cross Tunnel Structure. Shock and Vibration No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1120124
American Medical Association (AMA)
Lai, Jinxing& Wang, Kaiyun& Qiu, Junling& Niu, Fangyuan& Wang, Junbao& Chen, Jianxun. Vibration Response Characteristics of the Cross Tunnel Structure. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1120124
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120124