Study on working peculiarities of glue laminated beams under conditions of slanting bending
DOI:
https://doi.org/10.26884/1707.1801Ключові слова:
wood, bearing capacity, slanting bending, strain, stress, stiffnessАнотація
Current rules do not take into account the pecu-liarities of glue laminated beams under the con-ditions of slanting bending. In fact, the rules do not consider the real change in the stress-strain behavior of such elements upon the load change from its initial application till fracture under the conditions of slanting bending due to the fact that material (wood) behavior in the construction is currently assumed as nominally elastic. What is more, this issue is not sufficient-ly studied either theoretically or experimentally. This article is devoted to the study of the working peculiarities of glue laminated beams made of glued pine boards under the conditions of slanting bending. The main issues are as follows, the descrip-tion of research methodology and experimental prototypes, analysis and processing of the re-search results, working peculiarities of the mate-rial as part of the glue laminated wooden beams under the conditions of slanting bending. The article presents the results of experi-mental studies on the bearing capacity and de-formity of glue laminated beams under the con-ditions of slanting bending. The results will give the opportunity to design wooden constructions taking into account the profound knowledge on material capacity as well as the working peculi-arities of its components, which will lead to a more practical cross section of structural com-ponents. Investigation of the process of laminar de-formation upon the section height and indica-tion of the peculiarities of the stress-strain be-havior of these layers due to the stress of physi-cal force under the conditions of slanting bending will allow to perform more reliable calculations of stress-strain behavior and design of glue laminated beams at different stages.Посилання
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