Design and Construction of Floating Structure
Abstract
Design And Construction Of Floating Structure Very Large Floating Structure (VLFS) is a unique concept of ocean structures primarily due to their unprecedented length, displacement costs and associated hydroelastic response. History, application and unique engineering implications are presented. Uniqueness of VLFS is described, such as differences in VLFS behavior from conventional ships and offshore structures.
A comparative study of independently developed hydroelastic analytical tools for MOB and Mega-Float is made in terms of global behavior accuracy. Also discussed is the effect of structural modeling on the accuracy of stress analysis. VLFS includes innovative methods and methods of design. Development of design criteria and design procedures is described and the application of reliability-based approaches is documented and discussed.
In the last decade, research on the Very Large Floating Structure has made significant progress. A Very Large Floating Structure (VLFS) is a unique concept of ocean structures primarily due to its unprecedented length, displacement and associated hydroelastic response, analysis and design.
First, this report provides a brief overview of VLFS to give the new subject to the concept for readers. History, application and uniqueness of engineering implications are presented. Their presence is largely due in recent times to a severe land shortage and the cost of sky-rocketing land. After providing a description of a VLFS and highlighting its advantages (under certain conditions) over traditional land reclamation in creating space from the sea, the authors draw attention to the early, present and future applications of VLFS.
Conclusion
Very Large Floating Structure (VLFS) is a unique concept of ocean structures primarily due to their unprecedented length, displacement costs and associated hydroelastic response. VLFS requires massive resource investment and is considered a megaproject. Technology used in the project must be well proven or reliable in order to reduce investment risk. VLFS has little or no performance history. Researchers and engineers have improved their understanding of and implementation of hydroelastic response in the design method.
In the MOB and Mega-Float projects, detailed and concentrated efforts were undertaken. Considerable development of analytical programs has occurred. Design methodology was formalized and the flow of design resulted from the effort. To realize reliability, the Preliminary MOB Classification Guide required a risk-based safety assessment for VLFS and recommended by the Mega-Float Technical Guideline. MOB and Mega-Float are significantly different in objective and configuration terms.
