1. Concepts about the science of "Strength of Materials" tasks, consistency, uniformity, priority, brief history

3.Calculation schemes of parts of engineering structures (Structural elements: beam, plate, beam, massif, rod, shaft, beam, truss, frame).
Engineering structures, constructions have different appearance, they can be built from different materials. The elements that make up these constructions are found in such forms as brus, sturgeon, plate, shell and massive body.
Bar is a rigid body whose cross-sectional dimensions are much more smaller than their longitudinal dimensions. In construction and mechanical engineering, bars are found in straight, curved, prismatic and variable cross-sectional forms the science of resistance of materials, the main attention is paid to the calculation of bruses, which are often used in constructions. The axis of the brush and the cross-sectional surface are its main geometric dimensions. These dimensions are interconnected. On the one hand, the bruse axis is a line passing through the centers of gravity of the cross-sectional surfaces, and on the other hand, the cross-sectional surfaces are sections formed by planes perpendicular to the bruse axis . Plate is a solid body surrounded by a flat surface whose thickness is very small compared to its width and length (Fig. 1.6, a)

a)	b)	c)

These include floor slabs, wall panels, road slabs, etc. Plates are found in rectangular, circular and other forms.