New Exploration of CFRP prestressed equipment

Abstract

CFRP is widely used in the area of reinforcement because of its many advantages, but ordinary methods of past can not give full play to high-strength properties of CFRP.Therefore, new technology of concrete structures strengthened with prestressed CFRP emerges as the times require. At the same time,the prestressed tensioning equipment as the main construction tools has become a top priority. In this paper, we explored a new set of CFRP prestressed equipment, which is suitable for laboratory use through a comparative study of the existing applying ways and tensioning equipment of prestressed CFRP,and made use of the equipment to conduct the experimental research on strengthening concrete beams with prestressed CFRP.Experiment shows that the concrete beams strengthened with prestressed CFRP improved more significantly than the ones strengthened with ordinary CFRP in the aspects such as the bearing capacity. Thus it can be seen that the reinforcement effect is good, and the equipment can be further studied and applied to practical engineering.