Load & Resistance Factors Calibration for Sliding and Overturning Limit State Design of Perforated Caisson Breakwater

Kim, Dong Hyawn

doi:2020.32.6.458

Journal of Korean Society of Coastal and Ocean Engineers > Volume 32(6); 2020 > Article

Article

J Korean Soc Coast Ocean Eng 2020;32(6): 458-464. doi: https://doi.org/10.9765/KSCOE.2020.32.6.458

유공케이슨 방파제 활동 및 전도 한계상태설계를 위한 하중저항계수 보정

김동현

군산대학교 건축해양건설융합공학부 교수

Load & Resistance Factors Calibration for Sliding and Overturning Limit State Design of Perforated Caisson Breakwater

Dong Hyawn Kim

Professor, School of Architecture and Coastal Construction Engineering, Kunsan National University, 558 Daehak-ro, Gunsan-si, Jeollabuk-do 54150, Korea

Corresponding author: Dong Hyawn Kim ,Tel: +82-63-469-1862, Email: eastlite@kunsan.ac.kr

Received: November 23, 2020; Revised: December 8, 2020. Accepted: December 9, 2020.

ABSTRACT

Calibration of load-resistance factors for the limit state design of perforated caisson breakwaters are presented. Reliability analysis of 12 breakwaters in nationwide ports was conducted. Then, partial safety factors and load-resistance factors were sequentially calculated according to target reliability index. Load resistance factors were optimized to give one set of factor for limit state design of breakwater. The breakwaters were redesigned by using the optimal load resistance factor and verified whether reliability indices larger than the target value. Finally, some load-resistance factors were proposed by changing target reliability index.

Keywords: limit state design, perforated caisson, breakwater, load resistance factor, partial safety factor, target reliability index, code calibration