Structural health monitoring on medium rise reinforced concrete building using ambient vibration method
Monitoring of structural health from initial stage of building construction to its serviceability is an ideal practise to assess for any structural defects or damages. Structural integrity could be intruded by natural destruction or structural deterioration, and worse if without remedy action...
| Main Authors: | , , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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2018
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7075/1/P9108_99d5bd771854f1f28cfc60b2edd0c537.pdf |
| _version_ | 1796869487788556288 |
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| author | Kamarudin, A. F. Mokhatar, S. N. Zainal Abidin, M. H. Daud, M. E. Rosli, M. S. Ibrahim, A. Ibrahim, Z. Md Noh, M. S. |
| author_facet | Kamarudin, A. F. Mokhatar, S. N. Zainal Abidin, M. H. Daud, M. E. Rosli, M. S. Ibrahim, A. Ibrahim, Z. Md Noh, M. S. |
| author_sort | Kamarudin, A. F. |
| collection | UTHM |
| description | Monitoring of structural health from initial stage of building construction to its
serviceability is an ideal practise to assess for any structural defects or damages. Structural
integrity could be intruded by natural destruction or structural deterioration, and worse if
without remedy action on monitoring, building re-assessment or maintenance is taken. In this
study the application of ambient vibration (AV) testing is utilized to evaluate the health of
eighth stories medium rise reinforced concrete building in Universiti Tun Hussein Onn
Malaysia (UTHM), based comparison made between the predominant frequency, fo,
determined in year 2012 and 2017. For determination of fo, popular method of Fourier
Amplitude Spectra (FAS) was used to transform the ambient vibration time series by using 1
Hz tri-axial seismometer sensors and CitySharkII data recorder. From the results, it shows the
first mode frequencies from FAS curves indicate at 2.04 Hz in 2012 and 1.97 Hz in 2017 with
only 3.14% of frequency reduction. However, steady state frequencies shown at the second and
third modes frequencies of 2.42 Hz and 3.31 Hz by both years. Two translation mode shapes
were found at the first and second mode frequencies in the North-South (NS-parallel to
building transverse axis) and East-West (EsW-parallel to building longitudinal axis)
components, and the torsional mode shape shows as the third mode frequency in both years.
No excessive deformation amplitude was found at any selective floors based on comparison
made between three mode shapes produced, that could bring to potential feature of structural
deterioration. Low percentages of natural frequency disparity within five years of duration
interval shown by the first mode frequencies under ambient vibration technique was considered
in good health state, according to previous researchers recommendation at acceptable
percentages below 5 to 10% over the years. |
| first_indexed | 2024-03-05T21:55:39Z |
| format | Conference or Workshop Item |
| id | uthm.eprints-7075 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:55:39Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | uthm.eprints-70752022-05-24T01:59:33Z http://eprints.uthm.edu.my/7075/ Structural health monitoring on medium rise reinforced concrete building using ambient vibration method Kamarudin, A. F. Mokhatar, S. N. Zainal Abidin, M. H. Daud, M. E. Rosli, M. S. Ibrahim, A. Ibrahim, Z. Md Noh, M. S. TH Building construction Monitoring of structural health from initial stage of building construction to its serviceability is an ideal practise to assess for any structural defects or damages. Structural integrity could be intruded by natural destruction or structural deterioration, and worse if without remedy action on monitoring, building re-assessment or maintenance is taken. In this study the application of ambient vibration (AV) testing is utilized to evaluate the health of eighth stories medium rise reinforced concrete building in Universiti Tun Hussein Onn Malaysia (UTHM), based comparison made between the predominant frequency, fo, determined in year 2012 and 2017. For determination of fo, popular method of Fourier Amplitude Spectra (FAS) was used to transform the ambient vibration time series by using 1 Hz tri-axial seismometer sensors and CitySharkII data recorder. From the results, it shows the first mode frequencies from FAS curves indicate at 2.04 Hz in 2012 and 1.97 Hz in 2017 with only 3.14% of frequency reduction. However, steady state frequencies shown at the second and third modes frequencies of 2.42 Hz and 3.31 Hz by both years. Two translation mode shapes were found at the first and second mode frequencies in the North-South (NS-parallel to building transverse axis) and East-West (EsW-parallel to building longitudinal axis) components, and the torsional mode shape shows as the third mode frequency in both years. No excessive deformation amplitude was found at any selective floors based on comparison made between three mode shapes produced, that could bring to potential feature of structural deterioration. Low percentages of natural frequency disparity within five years of duration interval shown by the first mode frequencies under ambient vibration technique was considered in good health state, according to previous researchers recommendation at acceptable percentages below 5 to 10% over the years. 2018 Conference or Workshop Item PeerReviewed text en http://eprints.uthm.edu.my/7075/1/P9108_99d5bd771854f1f28cfc60b2edd0c537.pdf Kamarudin, A. F. and Mokhatar, S. N. and Zainal Abidin, M. H. and Daud, M. E. and Rosli, M. S. and Ibrahim, A. and Ibrahim, Z. and Md Noh, M. S. (2018) Structural health monitoring on medium rise reinforced concrete building using ambient vibration method. In: IConCEES 2017, 4 - 5 December 2017, Langkawi, Malaysia. https://doi.org/10.1088/1755-1315/140/1/012152 |
| spellingShingle | TH Building construction Kamarudin, A. F. Mokhatar, S. N. Zainal Abidin, M. H. Daud, M. E. Rosli, M. S. Ibrahim, A. Ibrahim, Z. Md Noh, M. S. Structural health monitoring on medium rise reinforced concrete building using ambient vibration method |
| title | Structural health monitoring on medium rise reinforced
concrete building using ambient vibration method |
| title_full | Structural health monitoring on medium rise reinforced
concrete building using ambient vibration method |
| title_fullStr | Structural health monitoring on medium rise reinforced
concrete building using ambient vibration method |
| title_full_unstemmed | Structural health monitoring on medium rise reinforced
concrete building using ambient vibration method |
| title_short | Structural health monitoring on medium rise reinforced
concrete building using ambient vibration method |
| title_sort | structural health monitoring on medium rise reinforced concrete building using ambient vibration method |
| topic | TH Building construction |
| url | http://eprints.uthm.edu.my/7075/1/P9108_99d5bd771854f1f28cfc60b2edd0c537.pdf |
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