Shear Behavior Of Anchors On The Basis Of Carbon Fiber At External Reinforcement

Abstract

In systems of external reinforcement on the basis of carbon fibers used for strengthening concrete structures, special attention should be paid to the anchoring of carbon reinforcement elements. Taking into account their installation in the external reinforcement system in the reinforced structure, the anchoring elements can work on the shear. At the same time, the nature of such operatioj as a whole is insufficiently studied, which raises many questions both about their calculation and their design. In order to improve calculation and design methods of carbon anchors, special experimental studies of the parameters of anchors and their impact on the bearing capacity of the anchor fastening were carried out. These studies relate to the length of the anchorage in the concrete body, maximum shear forces, ultimate deformations of the anchor etc. According to the results of the experiments conducted, the analysis of results obtained was performed, in particular, various schemes of destruction of anchors were analyzed and the impact of the depth of the anchor, its diameter of the anchor, as well as the type of binder on the degree of theirdestruction were studied.