Monitoring of a Historical Masonry Structure in Case of Induced Seismicity

Ihsan Engin Bal, Eleni Smyrou, Dimitrios Dais, Vasilis Sarhosis

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Abstract

In case of induced seismicity, expectations from a structural monitoring system are different than in the case of natural seismicity. In this paper, monitoring results of a historical building in Groningen (Netherlands) in case of induced seismicity has been presented. Results of the monitoring, particularities of the monitoring in case of induced earthquakes, as well as the usefulness and need of various monitoring systems for similar cases are discussed. Weak soil properties dominate the structural response in the region; thus, the ground water monitoring as well as the interaction of soil movements with the structural response has also been scrutinized. The proposed study could be effectively used to monitor historical structures subjected to induced seismicity and provide useful information to asset owners to classify the structural health condition of structures in their care.

It was shown that the in-plane cracks at the building would normally not be expected in this structure during small induced earthquakes happening in Groningen. One explanation provided here is that the soil parameters, such as shrinking of water-sensitive soil layers, in combination with small earthquakes, may cause settlements. The soil effects may superimpose with the earthquake effects eventually causing small cracks and damage.
Original languageEnglish
Number of pages19
JournalInternational Journal of Architectural Heritage: Conservation, Analysis and Restoration
Volume15
Issue number1
DOIs
Publication statusPublished - 13 Feb 2020

Keywords

  • historic structures
  • masonry
  • induced seismicity
  • earhquakes

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