Ductility Requirements for Reinforcement under Eurocodes

Experimental research is reported in which cyclic tests showed that the currently accepted properties of reinforcing steel do not provide sufficient local ductility for the highest ductility class of structures envisaged by the Eurocodes. New requirements are proposed for reinforcing steel to be used in seismic regions, particularly with reference to uniform elongation at maximum load, and the ratio between ultimate stress and yield stress.