| 신뢰성설계법 적용을 위한 항만시설의 하중저항계수 개발 연구 |
| 허정원1, 김동현2, 이화수3, 안익성4 |
1전남대학교 토목공학과 교수
2군산대학교 해양건설공학과 교수
3(주)한국항만기술단 사장
4(주)항도엔지니어링 사장 |
| Development of Load and Resistance Factors for the Reliability based Design of Harbor Facilities |
| Jungwon Huh1, Dong-Hyawn Kim2, Hwa-Soo Lee3, Ik-Seong Ahn4 |
1Professor, Dept. of Civil Engineering, Chonnam National University
2Professor, Dept. of Coastal Construction Engineering, Kunsan National University
3President, Korea Port Eng. Co., Ltd.
4President, Hangdo Eng. Co., Ltd. |
| Corresponding author:
Dong-Hyawn Kim ,Tel: +82-63-469-1862, Email: eastlite@kunsan.ac.kr |
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Received: July 16, 2026; Revised: July 29, 2026. Accepted: August 2, 2026. |
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| ABSTRACT |
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In this study, a Load and Resistance Factor Design (LRFD) method applicable to gravity-type port structures (caisson composite breakwaters and caisson-type quay walls) was developed based on probabilistic reliability analysis methods. To this end, representative domestic design cases distributed across all coastal areas of the East, West, and South coasts were systematically collected and analyzed to evaluate the quantitative failure probability levels for each limit state of the structures. A reasonable target reliability index was established by comprehensively considering the consistency between the results of intrinsic safety margin analyses of existing structures and the reliability indicators of domestic and international design codes. Based on this, code calibrations using the First Order Reliability Method (FORM) and Monte Carlo Simulation (MCS) were performed to determine the optimal load and resistance factors. Applying the proposed load and resistance factors enables the implementation of a rational limit-state design that consistently satisfies the target reliability levels in both structure stability and subgrade design; this is expected to contribute as an advanced technical and academic standard for future revisions to Korea’s reliability-based port design codes. |
| Keywords:
reliability based design, breakwater, quaywall, target reliability index, load resistance factor, code calibration |
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