会议专题

Fatigue analysis of caissons in gravity ocean platforms

Studied fatigue problems in the gravity ocean platform. Considered the influence of random waves as the environment loads, the wave loads was reduced by the Morison Equation and the speed of water particle was calculated by the Stokes Wave Theory. In the fatigue reliability analysis, supposed the stress was in Rayleigh distribution, then deduced probability distribution function of fatigue damage in structures based on the Miner linear accumulative damage standards, thus obtained fatigue damage and service life of caisson under wave random loading. At last, saw the gravity ocean platform as a space steelconcrete structure, considered the inner surface of the caisson, reduced to the rectangular plate problem, used finite element software to take dynamics analysis of simplified structure in ocean platform, get the allowed fatigue cycles and using coefficient. The calculation results show that the method is simple, reliable, and can be effectively used in engineering practice.

Gravity ocean platform Fatigue Rayleigh distribution Fatigue stress curve

Liu Nan Wang Yin-bang Wang Xin

College of Engineering Ocean University of China Qingdao, China

国际会议

2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

三峡

英文

760-763

2012-05-18(万方平台首次上网日期,不代表论文的发表时间)