Abstract
The article proposes a structural solution for the base of a wooden frame column on flat links glued in the support part of the column – steel plates welded to the base plate. The results of numerical studies of the column, taking into account the parameters of the adhesive connection of the plates with wood and the anisotropy of wood, are presented. The column model takes into account the geometric and physico-mechanical characteristics of wood, steel plate bonds and adhesive compound. The main results of numerical studies are verified with the results of the analytical calculation of the column performed by the method of initial parameters. A physical model with the proposed structural solution of the column base was made and tested. The numerical and analytical calculations of the column were validated, and the main conclusions of the experimental and theoretical study were presented.
Highlights
The main advantages of wooden housing construction are the excellent thermal insulation and environmental properties of load-bearing and enclosing structures and the short construction time of objects with a high degree of factory readiness
The main tasks of the study include the creation of a computer finite element model and the calculation of the stress-strain state of a wooden column structure with a support node on glued steel plates in the elastic area, its verification and validation of the numerical model based on the recommendations of regulatory documents [6, 7]
The boundary conditions are modeled by the imposition of prohibitions on the movement and rotation in all directions of the steel plate nodes and the prohibition of vertical movements of the nodes of the compressed part of the wooden bar located on the lower face of the bulk finite elements of the column, which corresponds to the actual design solution in the form of welding the plates to the base plate and resting the compressed part of the bar in the base plate during compression with bending
Summary
The main advantages of wooden housing construction are the excellent thermal insulation and environmental properties of load-bearing and enclosing structures and the short construction time of objects with a high degree of factory readiness. The relevance of the proposed research is determined, firstly, by the development of new design solutions for nodal joints based on the use of glued plates, and secondly, by the creation of a base of experimentally confirmed numerical models for testing the methods of engineering calculation of joints. The purpose of this work is to verify the reliability of the analytical and numerical calculation of the adhesive nodal joint by the finite element method based on a comparison with the results of an experimental study. The main tasks of the study include the creation of a computer finite element model and the calculation of the stress-strain state of a wooden column structure with a support node on glued steel plates in the elastic area, its verification and validation of the numerical model based on the recommendations of regulatory documents [6, 7]
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