Progress in Steel, Composite and Aluminium Structures contains the proceedings of the XI International Conference on Metal Structures ICMS 2006 held in Rzeszow, Poland from 21-23 June 2006. This proceedings brings together recent activities and achievements in theoretical and experimental research, as well as its practical implementation in design practice in the areas of Steel, Aluminium, Composite Steel-Concrete and Metal-Glass Structures, Bridges, Industrial Structures, Shell and Spatial Structures, Suspended and Prestressed Systems. The papers tackle such issues as strength, stability...