Analysis of Reinforcement Anchorage Zone Behavior of Prestressed Concrete Elements Under Static and Cyclic Loads

The article briefly discusses about the bond characteristics of different pretensioning reinforcement and some problems of reinforcement anchorage zone. In the present study bond characteristics of three-wire strand under static and cyclic load are investigated. The research revealed that bond stress-slip characteristics of three-wire strand are different from those proposed in Model Code for deformed and plain bars. The bond strength of three-wire strand is not negatively influenced by cyclic load at lower bond stress levels up to 0,7τstat.max.