TAKING INTO ACCOUNT THE COMPLIANCE OF GLUED JOINT OF ARMATURE AND WOOD IN REINFORCED WOODEN BEAMS
This article provides a methodology for the manufacture and laboratory testing of wooden samples reinforced with steel rod of streamlined profile and deformed section. The aim of the study was to assess the deformability of the glued joint and to correct the engineering method for calculating the strength of reinforced wooden beams taking into account the compliance of glued joint. The relevance of this topic is due to the neglect of the compliance of the glued joint of materials (wood and steel rods) when calculating reinforced wooden beams. As a result of conducted laboratory studies, experimental load-deformation dependences were obtained in glued joint wooden samples with steel reinforcing rod of a streamlined profile and deformed section. The engineering method for calculating reinforced wooden beams was corrected by introducing compliance coefficient of the glued joint, obtained on the basis of experimental data. A comparative analysis of the results of the engineering method of calculation was carried out taking into account the compliance of the glued joint for symmetrically and asymmetrically reinforced wooden beams with the results of numerical simulation in the Ansys software complex. Experimental studies have confirmed a decrease in the bearing capacity of reinforced wooden beams due to the compliance of the glued joint and, as a result, have made it possible to more accurately assess the bearing capacity of structures using the engineering method for calculating.