The evaluation of the available rotation capacity of steel and concrete composite beams is a key is- sue in the design of continuous beams for buil- dings and bridges, as it is strictly related to the pattern of the internal forces at collapse and af- fects the design criteria. On the other hand, mechanical phenomena go- Verning the rotation capacity are quite complex- In particular, if the hogging moment regions are Considered, the interaction between the structural Steel and the slab and band between reinforcing Bars and concrete make the structural behaviour Strongly non-linear even for low load levels.
展开▼
