Bearing capacity and deformability of joints of wooden elements on metal plates using screwed in screws
Abstract
Bearing capacity and deformability of joints of wooden elements on metal plates using screwed in screws
Incoming article date: 06.05.2021The article describes the developed design of a sample of joining solid wood elements on SHERPA plates, which made it possible to simulate the operation of nodal junctions of the main and secondary wooden beams for frame buildings and structures. A procedure for testing specimens by loading in steps with periodic unloading has been compiled and tested on three test specimens. The tests of the approved sample of the joint were carried out, its maximum bearing capacity was established, as well as the load corresponding to the upper boundary of the elastic work area (VGOUR) of the joint. The graphs of dependencies were built: "Load - total deformation Dp", "Load - permanent deformation Dо", "Load - elastic deformation Dу", "Elastic deformation Dу - residual deformation per cycle dо". The deformations of the joint were determined within the limits of the bearing capacity of the sample, the calculated bearing capacity of the joint and the coefficient of transition from glued wood to solid wood.
Keywords: solid wood, SHERPA metal strips, test of a specimen of a joint of wooden elements, load-bearing capacity of the joint, deformability of the joint, upper limit of the elastic work area of the joint, total deformation, permanent deformation