Title:
Rotation Capacity of Reinforced Concrete Slabs
Author(s):
Manuel Alvarez, Stefan Koppel, and Peter Marti
Publication:
Structural Journal
Volume:
97
Issue:
2
Appears on pages(s):
235-242
Keywords:
ductility; moment distribution; plastic hinges; reinforced concrete; slabs; structural design; tests.
DOI:
10.14359/852
Date:
3/1/2000
Abstract:
Results of bending tests on three continuous reinforced concrete slab strips are compared with calculations according to linear, nonlinear, and limit analysis approaches, as well as with code provisions. It is demonstrated that the reduced ductility properties of cold-deformed and coiled small-diameter reinforcing bars and wires may result in dangerous strain localizations, impairing rotation capacity, permissible moment redistribution, and ultimate strength. A nonlinear analysis method for refined deformation investigations is presented, and minimum ductility requirements for reinforcing steel are suggested.