Membranwirkung von Verbunddecken bei Brand - Experimentelle Untersuchungen

Composite beam slab systems show a very good behaviour in case of tire. Due to large deformations membrane forces are activated inside the slab and wider spans can be bridged. Secondary beams are not necessary at elevated temperatures and can be left unprotected. In Great Britain and Switzerland membrane action is already used to design slab systems in fire ([1] to 15]). To enable such design rules in Germany further investigations are required. For this reason a research project was initiated by the authors. The project is supported by the DASt and AiF. In [6] the state of research and the idea of membrane action are already described. In this paper the experimental part of the project is presented.