Steel bar drawing testing device suitable for Hopkinson pressure bar

The invention discloses a steel bar drawing testing device suitable for a Hopkinson pressure bar. The device is capable of achieving bonding sliding performance researches between steel bars and concrete under impact loading. The device is composed of a connecting part, a counterforce frame, a bearing table, a fixing device and a power transmission plate. An entering rod is connected with the counterforce frame through the connecting part so as to enable the entering rod and the counterforce frame to move corporately when the impact loading is exerted. The other end of the counterforce frame is tightly connected with a steel bar through a steel plate provided with threaded holes so as to transmit the impact loading, wherein the steel bar is embedded in a sample. The bearing table is fixed on a supporting seat of the Hopkinson pressure bar device so as to restrain displacement of the concrete sample in the loading direction, and therefore the drawing test under the steel bar impact loading is achieved. According to the steel bar drawing testing device, the test of steel bar dynamic drawing is achieved by utilizing the Hopkinson pressure bar, the testing device is simple in design, convenient to install and dismantle, and high in applicability.