ABSTRACT
ABSTRACT: The anchoring between a metallic component and a concrete block is an essential point in stability and durability of the structure. This joint has to transfer the deadweight of the structure and tensile, compressive and shearing loads created by the structure in service. This study focuses on the joint, constituted of long anchor bolts cast in place. The anchor rods are prestressed in order to minimize the effects of fatigue stress. To design these anchors the long-term behaviour of concrete is not taken into account whereas the concrete creep and shrinkage involves a decrease in the initial prestress level. Moreover, these anchors are submitted to fatigue loads and not only static loads. This paper presents the experimental results of creep and fatigue tests. The results show an important decrease in the prestress load due to creep, shrinkage and compressive behaviour of concrete under cyclic loading.
