SKULL CRACKER AND TEST APPARATUS FOR EVALUATING IMPACT RESISTANCE OF TWO-WAY CONCRETE ELEMENTS USING THEREOF

摘要

The biaxial impact test apparatus of a test body according to an embodiment of the present invention measures the impact energy applied to the test and the energy absorbed by the test body to finally measure the impact resistance performance of the test body. An upper frame provided on the upper part of the test body so as to be placed on the lower edge of the test body; A plurality of plate-shaped plates having an upper end connected to the upper frame and a lower end capable of contacting the lower frame are connected to each other so as to surround the outer surface of the test piece, and a variable frame part; A support connected to the lower frame and provided with a plurality of support members for supporting the test body such that the test body is horizontally positioned with respect to the bottom surface; And a plurality of support members which are provided between the plurality of support members and the lower frame, are connected to each other by a plurality of plate-like plates, And a plurality of first impact measurement units for measuring the impact energy absorbed by the test body in a two-way direction that is the width direction W of the test body, and the drop weight has a structure in which the shape of the portion hitting the test body is variable A drop weight body connected to the guide beam so as to be able to drop onto the test body to apply an impact to the test body; And a second impact measuring unit built in the drop weight body at a portion where the drop weight hits the test body and measures the impact energy applied by the drop weight body to the test body in case of impact with the test body.