This book is written for marine structural engineers and naval architects, as well as mechanical engineers and civil engineers who work on struch~ral design. The preparation of the book is motivated by extensive use of the finite element analysis and dynamidfatigue analysis, fast paced advances in computer and information technology, and application of risk and reliability methods. As the professor of offshore structures at Stavanger University College, I developed this book for my teaching course TE 6076 “Offshore Structures” and TE6541 “Risk and Reliability Analysis of Offshore Structures” for and . students. This book has also been used in IBC/Clarion industry training courses on design and.