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Structural Engineering and Mechanics Volume 90, Number 6, June25 2024 , pages 591-600 DOI: https://doi.org/10.12989/sem.2024.90.6.591 |
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Acceleration data and shape change characteristics of a gravity quay wall according to inclination condition grades |
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Su-Kyeong Geum, Jong-Han Lee, Dohyoung Shin and Jiyoung Min
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| Abstract | ||
| This study investigated the acceleration response and shape change characteristics of a gravity quay wall according to the magnitude of the applied acceleration. The quay wall was defined as a port facility damaged by the Kobe earthquake. Four experimental scenarios were established based on the inclination condition grades, considered to be a significant defect factor in the quay wall. Then, the shaking table test was conducted using scaled-down quay wall models constructed per each scenario. The ground acceleration was gradually increased from the peak ground acceleration (PGA) of 0.1 g to 0.7 g. After each ground acceleration test, acceleration installed on the wall and backfill ground and inclination on the top of the wall were measured to assess the amplification of peak response acceleration and maximum response amplitude and the change in the inclination of the quay wall. This study also analyzed the separation of the quay wall from the backfill and the crack pattern of the backfill ground according to PGA values and inclination condition grades. The result of this study shows that response acceleration could provide a reasonable prediction for the changes in the inclination of the quay wall and the crack generation and propagation on the backfill from a current inclination condition grade. | ||
| Key Words | ||
| acceleration response; condition assessment grade; gravity-type quay wall; shaking table test; shape change | ||
| Address | ||
| Su-Kyeong Geum, Jong-Han Lee, Dohyoung Shin: Department of Civil Engineering, Inha University, Incheon 22212, Republic of Korea Jiyoung Min: Sustainable Infrastructure Research Center, Korea Institute of Civil Engineering and Building Technology, Goyang 10233, Republic of Korea | ||