STAND FOR TESTING CONCRETE ELEMENTS FIXED degree Horizontal compression at static bending

摘要

Stand for testing of concrete elements with a fixed degree of horizontal compression in static bending test for static concrete elements in a limited horizontal displacement. The stand includes a floor mounted on the power vertical guides and torque support for a reinforced concrete element with cutouts for the rollers. In the cutout one support roller is mounted fixedly, and the other in the recess - movably. The stand comprises a traverse boot whose ends are placed on their own supports, mounted through metal pads on a reinforced concrete element. From the side of the fixed roller bearing for loading is movable crosshead and the movable roller from the - stationary. At boot traverse a hydraulic jack connected to a pumping station. From above through the metal ball in the hydraulic jack abuts thrust yoke, which is fixed to the vertical guides for vertical movement and fixation. At both ends of the reinforced concrete element mounted on two end bearings traverse. One end thrust in a pair of traverse rests on the corresponding end of the reinforced concrete element, and the second is mounted on a support structure which is fixed on the power floor. All end thrust crosspiece interconnected by strands with a metric thread and nuts. On tyazhah longitudinally mounted strain gauges, which are connected to the measuring system of the stand. The technical result - the investigation of the stress strain state of the test concrete element under static loading mode and a limited horizontal displacement control occurring at loading force thrust. 1 n.s p. P-ly 1 Fig.