CALCULATION OF THE STRESSED AND DEFORMED CONDITION OF REINFORCED WOODEN BEAMS OF RECTANGULAR SECTION

Abstract

There are a very large number of different building materials on the market. In Ukraine, we often prefer wood. Wood is one of the most important building materials in Ukraine due to its wide distribution, ease of extraction and processing, unique decorative properties, high strength, rigidity combined with low bulk density. Modern technologies in combination with the peculiarity of the natural properties of wood make it possible to make durable, reliable, modern wooden structures from wood, which capture the beauty and perfection. The popularity of wood using as a structural material is hidden not only in its reliability and strength, but also in such advantages as environmental friendliness. It is known that the most important arguments when choosing a place of residence are safety, environmental friendliness, practicality and convenience. However, taking into account all the positive aspects of wood as a material, it also has disadvantages that significantly limit the range of its use. The disadvantages of wood include the impact of various types of fungi and pests that require additional processing costs, light burning, shrinkage of the material, distortion during drying, cracking, as well as heterogeneity in the structure of wood, which affects the reliability and others. The main area of research is to improve wood by composing it with other materials to increase its strength, rigidity and reliability. The article describes the definition of internal forces from external loads. An algorithm for determining the stress-strain state of the wooden reinforced section is constructed. The method of plotting the dependence of the bending moment and the curvature of the cross section is described.