Ambient vibration testing of a three-storey substandard RC building at different levels of structural seismic damage

Pinar Inci*, Caglar Goksu, Ugur Demir, Alper Ilki

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In this paper, the effects of structural damage on the modal characteristics of a substandard full-scale reinforced concrete (RC) building were investigated. The RC building was a representative of large number of existing substandard RC buildings. The building was subjected to different levels of structural damage through quasi-static reversed cyclic lateral loading. Ambient vibration tests were carried out not only before and after quasi-static lateral loading cycles, but also at a certain damage level. The vibration test survey showed that modal frequencies decreased while damping ratios increased with the increasing levels of damage. More importantly, since the structural damage pattern due to quasi-static cyclic lateral loading was similar to ones observed in existing RC structures after earthquakes, determining the changes in dynamic characteristics at different levels of structural damage can be useful for estimating the residual performance of the structure after an earthquake.

Original languageEnglish
Title of host publicationGeotechnical, Geological and Earthquake Engineering
PublisherSpringer Netherlands
Pages219-231
Number of pages13
DOIs
Publication statusPublished - 2019

Publication series

NameGeotechnical, Geological and Earthquake Engineering
Volume47
ISSN (Print)1573-6059
ISSN (Electronic)1872-4671

Bibliographical note

Publisher Copyright:
© Springer International Publishing AG, part of Springer Nature 2019.

Funding

Acknowledgements The authors are thankful to financial supports of Istanbul Development Agency (Project No: TR10/12/AFT/0050) and ITU Scientific Research Fund Department. The contributions of Prof. Dr. Z. Celep, Prof. Dr. Z. Polat, Prof. Dr. T. Kabeyasawa, Assoc. Prof. Dr. K. Kusunoki, Assoc. Prof. Dr. K. Orakcal, Assoc. Prof. Dr. E. Yuksel, Assist. Prof. Dr. U. Yazgan, Dr. C. Demir, AN. Sanver, AO. Ates, M. Comert, Dr. C. Yenidogan, O. Ozeren, E. Tore, S. Khoshkholghi, A. Moshfeghi, S. Hajihosseinlou, HF. Ghatte, I. Sarıbas, Tech. A. Sahin and 2014 summer trainees are greatly appreciated. The authors are also thankful to supports of Akcansa Co., Art-Yol Co., Boler Celik Co., Hilti-Turkey Co., Tasyapi Co., Urtim Co., and the staff of Kadikoy Municipality.

FundersFunder number
ITU Scientific Research Fund Department
Istanbul Kalkinma AjansiTR10/12/AFT/0050

    Keywords

    • Ambient vibration test
    • Damage
    • Damping
    • Frequency
    • RC

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