Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corrosion and capacity prediction of marine steel infrastructure under a changing environment
The deterioration of marine steel infrastructure caused by corrosion may be influenced by a changing climate and/or pollution level which may lead to its serviceability and structural failure. However, almost all corrosion research until recently assumed time-invariant environmental conditions. A structural reliability analysis is applied here to simulate steel sheet piles in sea water conditions under a changing environment. Corrosion of marine steel infrastructure is modelled as a spatial time-dependent process including sea water temperature and sea level rise due to global warming and dissolved inorganic nitrogen concentration increase caused by pollution. The steel sheet piles are divided vertically into 70 elements to consider the spatial variability of different corrosion zones and sea level rise effects. Two limit states are considered: (i) stress of steel sheet piles reaches their yield stress and (ii) pitting corrosion perforation to provide an alert to repair or maintenance. The results show that ignoring the effects of a changing environment can underestimate structural capacity failure risks, and pollution will have a more significant effect on capacity of steel sheet piles than sea water temperature and sea level rise caused by global warming.
Corrosion and capacity prediction of marine steel infrastructure under a changing environment
The deterioration of marine steel infrastructure caused by corrosion may be influenced by a changing climate and/or pollution level which may lead to its serviceability and structural failure. However, almost all corrosion research until recently assumed time-invariant environmental conditions. A structural reliability analysis is applied here to simulate steel sheet piles in sea water conditions under a changing environment. Corrosion of marine steel infrastructure is modelled as a spatial time-dependent process including sea water temperature and sea level rise due to global warming and dissolved inorganic nitrogen concentration increase caused by pollution. The steel sheet piles are divided vertically into 70 elements to consider the spatial variability of different corrosion zones and sea level rise effects. Two limit states are considered: (i) stress of steel sheet piles reaches their yield stress and (ii) pitting corrosion perforation to provide an alert to repair or maintenance. The results show that ignoring the effects of a changing environment can underestimate structural capacity failure risks, and pollution will have a more significant effect on capacity of steel sheet piles than sea water temperature and sea level rise caused by global warming.
Corrosion and capacity prediction of marine steel infrastructure under a changing environment
Peng, Lizhengli (Autor:in) / Stewart, Mark G. (Autor:in) / Melchers, Robert E. (Autor:in)
Structure and Infrastructure Engineering ; 13 ; 988-1001
03.08.2017
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Corrosion and capacity prediction of marine steel infrastructure under a changing environment
| Online Contents | 2016
Corrosion and capacity prediction of marine steel infrastructure under a changing environment
| Online Contents | 2017
Corrosion of Steel Bars in Cracked Concrete under Marine Environment
| Online Contents | 2003
Steel Corrosion in Blended Cement Concretes under a Marine Environment
| British Library Conference Proceedings | 1994
Corrosion of Steel Bars in Cracked Concrete under Marine Environment
| British Library Online Contents | 2003