Joint Rock Coefficient Estimation Based on Hausdorff Dimension

Martišek, Dalibor

doi:10.4236/apm.2017.711037

Cited by 1 publication

(1 citation statement)

References 33 publications

(25 reference statements)

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“…Depending on the magnitude of the stress, the stiffness of the stone contact parts differs, and the stress at the bottom of the stone pagoda is the greatest [28][29][30]. In this study, the stiffness of the contact surface was measured, and the stress of the stone contact part of each stone was assumed to be the same, with only shear vibration considered as the vibration component.…”

Section: Field Investigation and Measured Natural Frequencymentioning

confidence: 99%

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

Lee,

Park,

Pham

et al. 2023

Sustainability

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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.

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Section: Field Investigation and Measured Natural Frequencymentioning

confidence: 99%