N° 132.1979. Structural Concrete under Seismic Actions - Vol. 2 and 3 - Technical Papers AICAP - CEB Symposium

The relationship between applied force and mean strain of a reinforcing bar embedded in a concrete prism subjected to repeated load reversals was determined theoretically by the use of the basic properties of the materials. 

The influence of the local contacts of cracked surfaces before the perfect closing of cracks at compressive loading was quantified from the reversed loading tests of concrete cylinders . In the theoretical determination , the local contact model of cracks and the bond- slip model Wlder reversed loads were applied successfully . The agreement between experimental and theoretical results was good.