Experimental Analysis on a Set of Four CFT Subjected to Monotonic and Cyclic Loading

Abstract

The main purpose of this work is the evaluation of the ultimate behaviour of Concrete Filled Tubes (CFT) subjected non uniform bending. The novelty point of this paper regards the use of big steel tubes whose material behaves like a high strength steel. Four experimental tests have been performed at the STRENGTH Laboratory of the of the University of Salerno under both monotonic and cyclic loading conditions. In particular, both constant and variable amplitude tests are considered. The three-point bending scheme is adopted for testing specimens, where a hydraulic actuator is used for the transmission of the transverse load at midspan under displacement control and an LVDT is used to measure the corresponding maximum transverse displacement.