Spectral analysis of vibrations of ITU TRIGA MARK-II nuclear research reactor building, Istanbul, Turkey

M. Cakman*, U. Harmankaya, B. Barutcu, P. Inci Kocak, A. Ilki, A. Kaslilar

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

We examine the spectral properties of the vibrations of ITU TRIGA MARK-II nuclear research reactor building located at the Istanbul Technical University Ayazaga campus, Istanbul, Turkey. Istanbul is located in a seismically active region, where a large earthquake is expected. The building is for the first time equipped with sensors by a government-university-industry collaboration. We installed twelve tri-axial MEMS accelerometers to the three-story building for monitoring purposes. We estimated the basic dynamic characteristics of the building, namely, modal frequencies, translational and rotational modes, and the soil structure interaction of the building by spectral methods, using a recorded earthquake and continuous vibration data. Our results are in general in agreement with the results of numerical calculations based on simple clamped model and three dimensional finite element structural analysis model. The aim of the study, in long term, is to monitor the structural health of the reactor building and involve a rapid damage assessment system as well as the earthquake early warning system to the reactor control facility.

Original languageEnglish
Publication statusPublished - 2019
Event1st Conference on Geophysics for Infrastructure Planning Monitoring and BIM, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019 - The Hague, Netherlands
Duration: 8 Sept 201912 Sept 2019

Conference

Conference1st Conference on Geophysics for Infrastructure Planning Monitoring and BIM, Held at Near Surface Geoscience Conference and Exhibition 2019, NSG 2019
Country/TerritoryNetherlands
CityThe Hague
Period8/09/1912/09/19

Bibliographical note

Publisher Copyright:
Copyright © EAGE 2018.

Funding

Sensors and data acquisition system are installed under the government-university-industry collaborative project titled Signal Analysis of ITU TRIGA MARK-II Nuclear Training and Research Reactor, supported by ITUNOVA-TTO A.Ş. and Aim Enerji A.Ş. AK and BB gratefully acknowledge this support. We thank A. Şişman, the former director of ITU Energy Institute, for giving us this opportunity; M. Okka and S. Kızıltaş, members of the reactor team, for their helps during our studies; E.Yüksel (ITU Civil Eng.), R. N. Çelik (ITU Geomatic Eng.) and their research groups for helping us for the selection of the locations of the sensors; and E. Şafak (BU-KOERI) for fruitful discussions.

FundersFunder number
ITU Energy Institute
International Technological University

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