A Linear Elastic Fracture Mechanics Model suitable for the analysis of different kind of collapses in reinforced concrete members is proposed. A concrete beam element, with a steel layer and a propagating through--thickness edge crack, subjected to unidirectional cyclic bending moment, is analyzed. Moment versus localized rotation relationships for the beam cross section are obtained. Yielding of steel, slippage between steel and concrete, elastic shake--down, plastic shake--down and stable and unstable crack propagation in concrete are examined. The influence of mechanical and geometrical properties on the behavior of the beam is discussed.
Cyclic behavior of reinforced concrete beams: different responses depending on mechanical and geometrical properties
MASSABO', ROBERTA
1993-01-01
Abstract
A Linear Elastic Fracture Mechanics Model suitable for the analysis of different kind of collapses in reinforced concrete members is proposed. A concrete beam element, with a steel layer and a propagating through--thickness edge crack, subjected to unidirectional cyclic bending moment, is analyzed. Moment versus localized rotation relationships for the beam cross section are obtained. Yielding of steel, slippage between steel and concrete, elastic shake--down, plastic shake--down and stable and unstable crack propagation in concrete are examined. The influence of mechanical and geometrical properties on the behavior of the beam is discussed.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
