Introduction to rationally-based structural design and optimisation. Loading and responses in ship and offshore structures. Bending of the hull girder - linear deterministic approach. Statistical predictions of wave loads and hull girder response. Fatigue strength and minimum required section modulus. Frame analysis and applications in ship structures. Laterally loaded grillages and stiffened panels - elastic analysis. Applications of extended beam theory - hull girder analysis. Properties of different materials such as steel and aluminium in terms of weldability and other methods of joining. Influence of classification rules and other regulations on construction details.