Empirical filtering method for natural frequencies evaluation of low rise reinforced concrete school building using ambient vibration approach
Ambient vibrations composed by various sources of seismic noise wave field from nature and human activities captured, may perturb the origin natural frequency of an investigated structure without careful data processing conducted' A simple empirical filtering protocol has been introduced with a...
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| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7244/ |
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| Summary: | Ambient vibrations composed by various
sources of seismic noise wave field from nature and
human activities captured, may perturb the origin natural
frequency of an investigated structure without careful
data processing conducted' A simple empirical filtering
protocol has been introduced with application of
Fourrier Amplitude Spectra (FAS) and Horizontal to
Vertical Spectral Ratio (HVSR) methods' in order to
determine the predominant frequencies of a 4-storey
reinforced concrete primary school building in Johor
Malaysia. Three predominant modes of building frequencies at 4.21 Hz and 6.58 Hz in transverse axis and
4.35 Hz in the longitudinal axis significantly observed
in computed spectral and successfully agreed to the verification
filtering protocol introduced, with relative
deviation lesser than 7.13%. |
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