Aleksandar Zhelyazkov and Daniele Zonta and Helmut Wenzel and Peter Furtner
A Procedure for PostEarthquake Damage Estimation Based on Detection of HighFrequency Transients
1135 - 1141
2018
12
11
International Journal of Structural and Construction Engineering
https://publications.waset.org/pdf/10009832
https://publications.waset.org/vol/143
World Academy of Science, Engineering and Technology
In the current research structural health
monitoring is considered for addressing the critical issue of
postearthquake damage detection. A nonstandard approach
for damage detection via acoustic emission is presented
acoustic emissions are monitored in the low frequency range
(up to 120 Hz). Such emissions are termed highfrequency
transients. Further a damage indicator defined as the
TimeRatio Damage Indicator is introduced. The indicator
relies on timeinstance measurements of damage initiation and
deformation peaks. Based on the timeinstance measurements
a procedure for estimation of the maximum drift ratio is
proposed. Monitoring data is used from a shakingtable test
of a fullscale reinforced concrete bridge pier. Damage of the
experimental column is successfully detected and the proposed
damage indicator is calculated.
Open Science Index 143, 2018