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Title |
Improvement of Seismic Performance Evaluation Method of Gravity type Concrete Dam Applying Maximum Credible Earthquake(MCE)
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Authors |
오정근(Jeong-Keun Oh) ; 정영석(Yeong-Seok Jeong) ; 권민호(Min-Ho Kwon) |
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DOI |
https://doi.org/10.11112/jksmi.2022.26.5.74 |
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Keywords |
콘크리트 중력식 댐; 동적소성해석; 가능최대지진(MCE); 파괴에너지; 활동 안정성 Gravity type Concrete Dam; Dynamic plastic analysis; Maximum Credible Earthquake(MCE); Fracture Energy; Activity stability |
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Abstract |
The purpose of this paper is to review the applicability of the current standards for the evaluation method of input variables and performance level in seismic performance evaluation by dynamic plastic analysis of the concrete gravity-type dam to which MCE is applied, and to suggest improvements. To this end, a domestic concrete gravity-type dam was selected as a target facility, dynamic plasticity analysis was performed under various conditions, and applicability to input variables such as concrete tensile strength and breaking energy, was reviewed. By analyzing the effect of cracks at the bottom of the gravity dam on the stability of the activity, an improvement plan for the performance level evaluation method required to secure the water storage function was derived. If the proposed improvement plan is applied, it will have the effect of deriving more reasonable evaluation results than the current seismic performance evaluation method to which MCE is applied.
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