Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis

Joint Authors

Lee, So-Young
Huynh, Thanh-Canh
Yi, Jin-Hak
Park, Woo-Sun
Seo, Chun-Kyo
Kim, Jeong-Tae

Source

International Journal of Distributed Sensor Networks

Issue

Vol. 2013, Issue - (31 Dec. 2013), pp.1-11, 11 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-11-17

Country of Publication

Egypt

No. of Pages

11

Main Subjects

Telecommunications Engineering
Information Technology and Computer Science

Abstract EN

Ambient and forced vibration tests are proposed to evaluate dynamic characteristics of a caisson-type breakwater, including natural frequencies and modal damping ratios.

The feasibility of a numerical analysis model with fluid-structure-soil interaction effects, which play an important role in evaluating structural performance and safety, was investigated by comparing the numerical results with experimental results.

The Oryukdo breakwater in Busan, Republic of Korea, was employed as the target structure.

This breakwater was once heightened by installing additional parapet structures of about 4 m tall to improve the harbor tranquility in 2005.

Vibration tests were carried out in 2000 (before heightening) and in 2011 (after heightening).

Most caissons were tested in the first test, while only one caisson was tested in 2011.

It was found that natural frequencies were reduced by 1.7%–4.3% after heightening, and similar results were observed from the numerical analysis.

It was also found that forced vibration tests can yield more reasonable results than ambient vibration tests.

Even though there is some discrepancy between experimental and numerical results, numerical analysis can be carried out to analyze dynamic characteristics and evaluate structural performance and safety.

American Psychological Association (APA)

Yi, Jin-Hak& Park, Woo-Sun& Lee, So-Young& Huynh, Thanh-Canh& Kim, Jeong-Tae& Seo, Chun-Kyo. 2013. Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis. International Journal of Distributed Sensor Networks،Vol. 2013, no. -, pp.1-11.
https://search.emarefa.net/detail/BIM-499570

Modern Language Association (MLA)

Yi, Jin-Hak…[et al.]. Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis. International Journal of Distributed Sensor Networks Vol. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-499570

American Medical Association (AMA)

Yi, Jin-Hak& Park, Woo-Sun& Lee, So-Young& Huynh, Thanh-Canh& Kim, Jeong-Tae& Seo, Chun-Kyo. Evaluation of Vibration Characteristics of an Existing Harbor Caisson Structure Using Tugboat Impact Tests and Modal Analysis. International Journal of Distributed Sensor Networks. 2013. Vol. 2013, no. -, pp.1-11.
https://search.emarefa.net/detail/BIM-499570

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-499570