A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam
Joint Authors
Nguyen, Thanh Q.
Nguyen, Thao D.
Tran, Lam Q.
Ngo, Nhi K.
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-04
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
We propose a novel representative power spectrum density as a specific characteristic for showing responses of spans during a long operational period.
The idea behind this method is to use the representative power spectrum density as a powerful tool to evaluate the stiffness decline of spans during their operation period.
In addition, a new measurement method has been introduced to replace the traditional method of monitoring the health conditions of bridges through a periodic measurement technique.
This helps to reduce costs when carrying out testing bridges.
Besides, the proposed approach can be widely applied not only in Vietnam but also in many other underprivileged countries around the world.
Obtained results show that, during the operational process of spans, there is not only a pure vibration evaluation such as bending vibration and torsion vibration tests but also a combination of various vibration types including bending-torsion vibration or high-level vibrations like first-mode bending and first-mode torsion.
Depending on each type of structure and material properties, different types of vibrations will appear more or less during the operational process of spans under a random moving load.
Furthermore, the representative power spectrum density is also suitable for evaluating and determining many different fundamental vibrations through the same measurement time as well as various measurement times.
American Psychological Association (APA)
Nguyen, Thanh Q.& Nguyen, Thao D.& Tran, Lam Q.& Ngo, Nhi K.. 2020. A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam. Shock and Vibration،Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1209655
Modern Language Association (MLA)
Nguyen, Thanh Q.…[et al.]. A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam. Shock and Vibration No. 2020 (2020), pp.1-20.
https://search.emarefa.net/detail/BIM-1209655
American Medical Association (AMA)
Nguyen, Thanh Q.& Nguyen, Thao D.& Tran, Lam Q.& Ngo, Nhi K.. A New Insight to Vibration Characteristics of Spans under Random Moving Load: Case Study of 38 Bridges in Ho Chi Minh City, Vietnam. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-20.
https://search.emarefa.net/detail/BIM-1209655
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1209655