N° 131.1979. Structural Concrete under Seismic Actions - Vol. 1 - State of the Art Reports AICAP - CEB Symposium

Stress–strain relationships for reinforcing steel under repeated and reversed cyclic loading simulating seismic conditions are reviewed. Emphasis is placed on the need for these constitutive relationships to predict the limit of deformability of reinforcing steel that will be reached under given loading cycles.

The prerequisite for a reinforced concrete member, as part of seismic structures, is that it should develop sufficient ductility or rotation capacity. The basic inelastic behavior of reinforced concrete members is discussed in association with the influence of steel performance on the ductility of these members. Some comments on the behavior of prestressing steel are also included.