DEVICE FOR FATIGUE ASSESSMENT OF ASPHALT CONCRETE UNDER CYCLIC DYNAMIC IMPACTS

摘要

FIELD: construction.;SUBSTANCE: device comprises a frame, lifting table, capable to change the height, positioning node of test beam, load node of test beam made with possibility to apply cyclic dynamic load and possibility to measure displacements and loading force, comprising rod and slide mechanism. Positioning nod of the test beam comprises clamping jaws mounted on the ends of the test beam parallel to the transverse symmetry axis of the frame and intermediate elastic foundation made as a container filled with model soil with the possibility of tight contact with the place of test beam facing to it. Loading element of load node of the test beam is designed with the possibility of its positioning in the middle of the test beam.;EFFECT: increase of reliability of assessment of asphalt concrete fatigue strength parameters under cyclic dynamic impacts, reduction of the structure materials consumption.;5 cl, 2 dwg