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Title |
Structural Behavior of Nuclear Power Plant Walls with Variable Loading Rates and Aspect Ratios
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Authors |
백장운(Jang-Woon Baek); 양현근(Hyeon-Keun Yang); 박홍근( Hong-Gun Park) |
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DOI |
https://doi.org/10.4334/JKCI.2019.31.3.229 |
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Keywords |
고진동수 지진; 가력속도; 주기하중; 낮은 철근콘크리트 벽체 high-frequency earthquake; loading rate; cyclic loading; low-rise RC wall |
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Abstract |
In South Korea where high-frequency earthquake have recently occurred, reinforced concrete walls in nuclear power plants need to be re-investigated considering high strain rate caused by high-frequency earthquakes. In the present study, low-rise reinforced concrete walls were tested to investigate the effect of high loading rate. Identical twin specimens subjected to low and high loading rates were tested and the results were directly compared. The major test parameters were the loading rate, failure mode, aspect ratio, and reinforcement ratio. The test results showed that high loading rate did not change the major failure modes of walls. For all specimens that failed in flexure, shear, and shear sliding, the maximum strength was slightly increased by high loading rate. On the basis of the test results, the effect of loading rate on RC walls were reported.
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