Probabilistic remaining life estimation for deteriorating steel marine infrastructure under global warming and nutrient pollution

OCEAN ENGINEERING

卷:126

Article

Chaves, Igor A.¹  Melchers, Robert E.¹  Peng, Lizhengli¹  Stewart, Mark G.¹ 

[1] Univ Newcastle, Ctr Infrastruct Performance & Reliabil, Callaghan, NSW 2308, Australia

关键词: Structural steel;    Corrosion;    Climate change;    Reliability;    Modelling;   

DOI  :  10.1016/j.oceaneng.2016.09.013

来源: Elsevier

【 摘 要 】

The longer-term serviceability and structural safety of steel infrastructure exposed to seawater conditions may be affected by global warming and by seawater nutrient pollution. These may affect abiotic and biotic (microbial) corrosion. A model for long-term corrosion is developed from data obtained from steel piling exposed for 33 years in a seawater harbour. The effects on corrosion losses on the structural reliability of steel sheet piling as used in harbours world-wide were investigated as a function of seawater temperature rise from global warming and of seawater nutrient pollution. The results show that structural reliability is more sensitive to likely nutrient pollution than to predicted increases in seawater temperature, noting also that global warming also could increase nutrient pollution from anthropological sources. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free