Evaluation of Seismic Performance of Masonry Stone Pagoda: Dynamic Centrifuge Test and Numerical Simulation Analysis

Gayoon Lee, Heon-Joon Park, Khoa V. A. Pham, Jae-Young Kim, Sung-Min Lee and Kihak Lee ()
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Gayoon Lee: Deep Learning Architectural Research Center, Department of Architectural Engineering, Sejong University, Seoul 05006, Republic of Korea
Heon-Joon Park: Department of Civil Engineering, Seoul National University of Science and Technology (SEOULTECH), Seoul 01811, Republic of Korea
Khoa V. A. Pham: Deep Learning Architectural Research Center, Department of Architectural Engineering, Sejong University, Seoul 05006, Republic of Korea
Jae-Young Kim: Deep Learning Architectural Research Center, Department of Architectural Engineering, Sejong University, Seoul 05006, Republic of Korea
Sung-Min Lee: Korea Construction Quality Research Center, Seoul 06052, Republic of Korea
Kihak Lee: Deep Learning Architectural Research Center, Department of Architectural Engineering, Sejong University, Seoul 05006, Republic of Korea

Sustainability, 2023, vol. 15, issue 17, 1-19

Abstract: This study provides a comparison of results from dynamic centrifuge tests and a finite element analysis model to confirm the behavior of a representative Korean stone pagoda cultural heritage structure against earthquakes. The indirect stiffness or physical state of the structure was estimated by measuring the natural frequency of the masonry stone pagoda. The actual natural frequency of the stone pagoda was measured to be 4.5 Hz. It was determined to have a lower natural frequency than other stone pagodas of similar size. For the experiment, a dynamic centrifugal separator test was performed on a 1/15 model. Data from an actual earthquake record, the Ofunato earthquake, were used, with various maximum acceleration levels ranging from 0.069 g to 0.424 g. In order to confirm the accuracy of the finite element analysis model, the measured natural frequency of the masonry stone pagoda was compared with the modal analysis of the finite element model. When the data obtained from the experiment and the PGA (peak ground acceleration) of the FEM analysis with a complex masonry stone pagoda using a validated model result were compared, it was found to have a low average error rate of 13%. This shows that structural behavior can be predicted for similar masonry stone pagoda structures using finite element method analysis in the future.

Keywords: natural frequency; dynamic centrifuge test; peak acceleration; finite element analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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