CE631. Steel Structures II (ects: 5) Design of steel structures (geometrical description, structural modelling and basic assumptions, loads, structural analysis, resistance). Steel - material description, Eurocode 3 material properties. Cross section types. Ultimate limit states. Connection design with common bolts under tensional load. Connection design with prestressed bolts under tensional load. Connection design under tensional and shearing loads. Resistance of cross-sections. Tension. Shear. Bending (Cross sections classification). Shear and bending. Bi-axial bending. Bending and axial force. Compression. Compression and bending. Torsion. Lateral buckling. Beam-column connections. Behaviour of cross sections with simple symmetry. Welding. Basic principles for seismic design. Basic design principles for frame structures. Serviceability limit states.