Experiment on Natural Frequency Change of Reinforced Concrete Members under Low Cycle Loading
Joint Authors
Zhang, Zhenhao
Cao, Feng
Yang, Jianyu
He, Zhigang
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-10
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
The natural frequency change of reinforced concrete (RC) members during damage when subjected to low cycle loading was studied through horizontal cyclic loading experiments.
Three groups of RC flexural members were subjected to horizontal, harmonic, low cycle loading to simulate earthquake conditions.
The relation of instantaneous load, instantaneous displacement, and instantaneous natural frequency during loading was deduced.
Using the resulting equation, the test members’ natural frequencies at any moment during loading could be calculated accurately.
Then the natural frequency change curves and their fitting equations were also obtained.
The impact of loading period T and loading amplitude A on a test member’s damage rate V was analyzed, which showed that the impact of T on V was quadratic, and the relation between A and V was linear.
Finally, by fitting experimental data of number of loading cycles N, loading amplitude A, loading period T, and natural frequency ω, a three-variable function, ω(N, A, T), was determined, revealing the change process of test members’ frequencies under arbitrary harmonic vibrations.
American Psychological Association (APA)
Zhang, Zhenhao& Cao, Feng& Yang, Jianyu& He, Zhigang. 2018. Experiment on Natural Frequency Change of Reinforced Concrete Members under Low Cycle Loading. Shock and Vibration،Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215383
Modern Language Association (MLA)
Zhang, Zhenhao…[et al.]. Experiment on Natural Frequency Change of Reinforced Concrete Members under Low Cycle Loading. Shock and Vibration No. 2018 (2018), pp.1-17.
https://search.emarefa.net/detail/BIM-1215383
American Medical Association (AMA)
Zhang, Zhenhao& Cao, Feng& Yang, Jianyu& He, Zhigang. Experiment on Natural Frequency Change of Reinforced Concrete Members under Low Cycle Loading. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-17.
https://search.emarefa.net/detail/BIM-1215383
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215383