Deviation in deflections of eccentrically prestressed reinforced concrete structures

Abstract

The pre-service stage deflections, caused by prestress, should be evaluated when calculating the final deflections of the members. The deflections of neighboring prestressed reinforced concrete structures should not differ beyond the allowable range. The significant difference of deflections in neighboring structures could violate not only the economical and aesthetical requirements but also could have negative influence on the overall structural behavior. The research shows that the behavior of prestressed reinforced concrete structures is influenced by many technological factors. Most of the influence takes place during the production of pestressed RC structures and mainly caused by initial prestress in reinforcement and variable deformations of concrete.