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Cracking Behavior of a Concrete Arch Dam with Weak Upper Abutment
Joint Authors
Lei, Xu
Jing, Shuaizhao
Liu, Jie
Huang, Yefei
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-11-28
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The cracking behavior and failure mode of a 78 m high concrete double-curvature arch dam with weak upper abutment are investigated through performing cracking analysis.
The mechanical behavior of concrete is simulated using a smeared crack model, in which a combination of the compression yield surface and the crack detection surface with a damaged elasticity concept is employed to describe the failure of concrete.
The arch dam with practical mechanical properties of the upper and lower abutments is firstly studied with emphasis on its cracking behavior during overloading.
Then, a comprehensive sensitivity analysis is carried out to investigate the influence of the ratio of the mechanical properties of upper abutment to those of lower abutment on dam failure with prime attention placed on the failure mode.
Simulation results indicate the adopted smeared crack model is well-suited to the crack analysis of concrete arch dam.
It is shown that cracking is localized around the interface between upper and lower abutments, which leads to a fast crack growth in the through-thickness direction of dam and finally causes the dam failure.
Furthermore, the sensitivity analysis presents three types of failure modes corresponding to different ratio value, wherein Modes II and III should be avoided since the weak upper abutment plays a predominant role in the cracking and failure of concrete arch dam.
American Psychological Association (APA)
Lei, Xu& Jing, Shuaizhao& Liu, Jie& Huang, Yefei. 2017. Cracking Behavior of a Concrete Arch Dam with Weak Upper Abutment. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1191433
Modern Language Association (MLA)
Lei, Xu…[et al.]. Cracking Behavior of a Concrete Arch Dam with Weak Upper Abutment. Mathematical Problems in Engineering No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1191433
American Medical Association (AMA)
Lei, Xu& Jing, Shuaizhao& Liu, Jie& Huang, Yefei. Cracking Behavior of a Concrete Arch Dam with Weak Upper Abutment. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1191433
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1191433