The design of double skin composite elements

Abstract Double skin composite elements are formed from two steel skins connected to an infill of concrete with welded stud connectors. This paper describes design development and experimental studies on the system. A design model developed from previously reported scale model tests and similar to that used for reinforced concrete is proposed. A series of full scale tests is then used to verify the model. Comparisons show that the design model is suitable for most simple elements and gives a good prediction of behaviour.