Vibration-based structural change identification of multi-storied reinforced concrete building using sensitivity-based model updating technique

Authors

  • Jhabindra P. Ghimire Welink consultants
  • Yasunao Matsumoto Saitama University
  • Areemit Nattapong Saitama University
  • Hiroki Yamaguchi Saitama University

Keywords:

ambient vibration, mathematical model, sensitivity-based model updating, building renovation, structural change

Abstract

The applicability of the sensitivity-based model updating technique to the identification of structural changes made in an existing structure was investigated with a pile supported reinforced concrete building undergoing major renovation. Seven different renovation stages which represented the different states of the building during the renovation were considered. The modal properties, i.e., natural frequencies and mode shapes, identified from the ambient vibration measurement of the building were used in the identification of structural changes. The sensitivity-based model updating technique was used to update the mathematical models of the building for all renovation stages. Structural change made in the building during renovation was quantified in terms of structural parameters identified from the model updating. More than 50% reduction in stiffness in the longitudinal direction of the building was found significant in all four story of the building, which may be attributed to the removal of shear walls. The storey stiffness obtained form the model updating was compared between before and after the renovation. Keywords: ambient vibration, mathematical model, sensitivity-based model updating, building renovation, structural change Nepalese Journal of Engineering Vol.1(1) 2005 pp.51-63

Downloads

Download data is not yet available.
Abstract
2711

Author Biographies

Jhabindra P. Ghimire, Welink consultants

Welink consultants , Kathmandu, Nepal.

Yasunao Matsumoto, Saitama University

Department of Civil and Environmental Engineering, Saitama University, Shimo-Ohkubo, Sakura-ku, Saitama, 338-8570, Japan

Areemit Nattapong, Saitama University

Department of Civil and Environmental Engineering, Saitama University, Shimo-Ohkubo, Sakura-ku, Saitama, 338-8570, Japan

Hiroki Yamaguchi, Saitama University

Department of Civil and Environmental Engineering, Saitama University, Shimo-Ohkubo, Sakura-ku, Saitama, 338-8570, Japan

How to Cite

Ghimire, J. P., Matsumoto, Y., Nattapong, A., & Yamaguchi, H. (2005). Vibration-based structural change identification of multi-storied reinforced concrete building using sensitivity-based model updating technique. Nepalese Journal of Engineering, 1(1), 51–63. Retrieved from https://nepjol.info./index.php/NJOE/article/view/26

Issue

Vol. 1 No. 1 (2005)

Section

Articles

License

Manuscript Submission to the Journal implies that the work described has not been published before (except in the form of abstract or as a part of published lecture, review or dissertation); that it is not under consideration for publication elsewhere; that its publication has been approved by all coauthors, if any, as well as by the responsible authorities at the institute where the work has been conducted; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher; and that the manuscript will not be published elsewhere in any language without the consent of the copyright holders. All articles published in this Journal are the sole property of the publisher. Reproduction and distribution of material published in this Journal, in any form, is not allowed without the written permission from the publisher. Authors may make their article published by The Horizon available on their personal homepage provided the source of the published article is cited and The Horizon is mentioned as copyright owner. The Journal believes that material contained in it is true and accurate at the time of its publication. Its authors, editors and publishers do not accept any legal responsibility for any omissions and errors that may be made. The Horizon makes no warranty, expressed or implied, with respect to the material contained herein.