EXPERIMENTAL STUDY OF FIXED-FREELY SUPPORTED CONCRETE FILLED STEEL TUBULAR UNDER LATERAL IMPACT LOAD

An impact resistance experiment on fixed-freely supported steel tube-confined concrete under lateral impact has been carried out. The dynamic response and destruction course of the model is measured under impact forces. The travel time curve of the test specimen is drawn up, and the state of being broken are researched. It is shown by means of test that the STCC has good resistance to impact force, that when the component is added the force suddenly the STCC demonstrates very good ductility. When the STCC is subjected to the lateral impact force, the materials have obvious yield stage. The bigger the speed and quality of the drop hammer, the more fragile of STCC dynamic response. This subject has provided the credible reference and the analytical method for further research on this problem.