Dynamic Characteristic and Fatigue Accumulative Damage of a Cross Shield Tunnel Structure under Vibration Load
Joint Authors
Yan, Qixiang
Chen, Hang
Chen, Wenyu
Zhang, Junchen
Ma, Shuqi
Huang, Xi
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-13
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This study presents an improved constitutive model for concrete under uniaxial cyclic loading which considers the fatigue stiffness degradation, fatigue strength degradation, and fatigue residual strain increment of concrete fatigue damage.
According to the constitutive model, the dynamic response and cumulative damage of the tunnel cross structure under various train operation years were analyzed.
The results show that the vibration in the middle of the main tunnel is most violent.
With the increase of train operation period, the acceleration in the middle of the transverse passage floor, both sides of the wall corner and the vault increase significantly, and the maximum principal stress increases significantly only in both sides of the wall corner.
The compressive damage is mainly distributed at both sides of the wall corner, while tensile damage is distributed in both sides of the inner wall corner.
The accumulative damage of the cross structure exhibits a two-stage profile.
The size and range of accumulative tensile damage of the connecting transverse passage are greater than those of accumulative compressive damage.
American Psychological Association (APA)
Yan, Qixiang& Chen, Hang& Chen, Wenyu& Zhang, Junchen& Ma, Shuqi& Huang, Xi. 2018. Dynamic Characteristic and Fatigue Accumulative Damage of a Cross Shield Tunnel Structure under Vibration Load. Shock and Vibration،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215561
Modern Language Association (MLA)
Yan, Qixiang…[et al.]. Dynamic Characteristic and Fatigue Accumulative Damage of a Cross Shield Tunnel Structure under Vibration Load. Shock and Vibration No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1215561
American Medical Association (AMA)
Yan, Qixiang& Chen, Hang& Chen, Wenyu& Zhang, Junchen& Ma, Shuqi& Huang, Xi. Dynamic Characteristic and Fatigue Accumulative Damage of a Cross Shield Tunnel Structure under Vibration Load. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215561
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215561