INVESTIGATION THE CREEP AND CREEP RECOVERY BEHAVIOR OF BUILD-UP SYSTEMS

The creep and creep recovery are important characteristics of Build-up system (BU-system). So, this paper is focused on the creep and creep recovery of several BU-systems. The creep and creep recovery of two different types of force transducers, including RTN and column type, are measured when applied 20%, 40%, 60%, 80%, and 100% of the rated loads and after unloading, respectively. Afterward built-up by these transducers, BU-systems with different structures and capacities are measured in order to investigate the creep and creep recovery behaviors of them and the different between the BU-system and single transducer.