Off shore Structures in the Arctic

摘要

The recent interest and focus on the Arctic regions have posed some unique challenges to offshore structures because of the extreme cold temperatures and ice loads.Temperatures in the range between minus 20 degrees Celsius and minus 40 degrees Celsius are common in the Arctic. In terms of structural design, it restricts the range of economical steel available for use under such extreme climate. In addition, some of the offshore structures may be floating or may need to be transported over shallow waters of the Arctic shelf, hence, lightship draft is a concern. Over the last few years, Keppel O&M has invested resources to investigate the use of concrete to address these issues.