Seismic Behavior of Stone Pagoda Structure by Shaking Table Test

Ho-Soo Kim, Dong-Kwan Kim, Geon-Woo Jeon, Sang-Sun Jo and Se-Hyun Kim
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Ho-Soo Kim: Department of Architectural Engineering, Cheongju University, Cheongju 28503, Korea
Dong-Kwan Kim: Department of Architectural Engineering, Cheongju University, Cheongju 28503, Korea
Geon-Woo Jeon: Department of Architectural Engineering, Cheongju University, Cheongju 28503, Korea
Sang-Sun Jo: National Research Institute of Cultural Heritage (NRICH), Daejeon 34122, Korea
Se-Hyun Kim: National Research Institute of Cultural Heritage (NRICH), Daejeon 34122, Korea

Sustainability, 2021, vol. 13, issue 9, 1-20

Abstract: In general, the stone pagoda structures with discontinuous surfaces are vulnerable to lateral forces and are severely damaged by earthquakes. After the Gyeongju earthquake in 2016 and the Pohang earthquake in 2017, numerous stone pagoda structures were damaged due to slippage, rotation, and the separation of stacked stone. To evaluate seismic resistance of masonry stone pagoda structures, we analyzed the seismic behavior of stone pagoda structures using the shaking table test. Shaking frequency, permanent displacement, maximum acceleration, rocking, and sliding were assessed. Responses to simulations of the Bingol, Gyeongju, and Pohang earthquakes based on the Korean seismic design standard (KDS 41 17 00) were analyzed for return periods of 1000 and 2400 years. We found that the type of stylobate affected the seismic resistance of the stone pagoda structure. When the stylobates were stiff, seismic energy was transferred from lower to upper regions of the stone pagoda, which mainly resulted in deformation of the upper region. When the stylobates were weak, earthquake energy was absorbed in the lower regions, which was associated with large stylobate deformations. The lower part of the tower body was mainly affected by rocking, because the structural members were slender. The higher part of the stone pagoda was mainly affected by sliding, because the load and contact area decreased with height.

Keywords: stone pagoda; masonry structure; shaking table test; earthquake resistance; seismic behavior (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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