부분안전계수를 이용한 케이슨식안벽의 신뢰성설계법 KCI

Title
부분안전계수를 이용한 케이슨식안벽의 신뢰성설계법
Alternative Title
Reliability Based Design of Caisson type Quay Wall Using Partial Safety actors
Author(s)
김동현; 윤길림
KIOST Author(s)
Yoon, Gil Lim(윤길림)
Publication Year
2009-06
Abstract
케이슨식 안벽의 Level I 신뢰성설계를 위한 부분안전계수를 산정하였다. 일계신뢰도법에 의한 부분안전계수는 한계상태함수의 확률변수에 대한 민감도, 목표신뢰도지수, 확률특성치 및 설계특성치 등의 함수로써 표현하였으며 전면조위와 잔류수위에 대해서는 현행설계법과의 연계성을 유지하기 위하여 수정부분안전계수를 새롭게 정의하였다. 수치해석을 통하여 목표신뢰도지수에 대한 부분안전계수를 산정하였으며 지진계수의 확률분포는 극치분포를 사용하였다. 지진계수의 설계치를 적용함에 있어서 재현주기가 길수록 부분안전계수가 작게 산정됨을 확인하였다.

Partial safety factors(PSFs) for Level I reliability based design of caisson type quay walls were calculated. First order reliability method(FORM) based PSFs are the functions of sensitivities of limit state function with respect to design random variables, target reliability index, characteristic values and first moment of random variables. Modified PSFs for water level and resilient water level are newly defined to keep consistency with the current design code. In the numerical example, PSFs were calculated by using a target reliability index. Seismic coefficient is defined to show extreme distribution. It was found that PSFs for seismic coefficient becomes smaller as the return period for design seismic coefficient grows longer.
ISSN
1976-8192
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1852
Bibliographic Citation
한국해안·해양공학회논문집, v.21, no.3, pp.224 - 229, 2009
Publisher
한국해안,해양공학회
Keywords
케이슨; 안벽; 신뢰성; 부분안전계수; 지진계수; 신뢰도지수; caisson; quay wall; reliability; partial safety factor; seismic coefficient; reliability index
Type
Article
Language
Korean
Publisher
한국해안,해양공학회
Related Researcher
Research Interests

marine geotechnics,Dredging & Soft Ground,Offshore Wind Foundations,해양지반공학,준설 및 연약지반,해상풍력기초 및 신뢰성설계

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