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Crane structures are the most vulnerable in buildings and structures because of their early wear in comparison with other building structures. The wear of crane structures is because of the appearance and the development of fatigue damage nature. The article presents the constructive solutions developed by the authors for strengthening the structures of steel crane beams with conventional and corrugated walls which allow to reduce the influence of the negative influence of installation, operation and technological processes on their operational durability. The most dangerous installation defect is the displacement of the crane rail axis relative to the axis of the crane beams wall. Value of this shift is exceeded several times in the cases considered below. It is proposed to use crane beams with corrugated walls to solve this problem. The authors have developed and implemented a project to restore the performance of steel crane beams by strengthening the walls of damaged beams without stopping production. Strengthening was performed on the outside of the eccentricities of the application of loads from crane rails by creating a truss structure parallel to the I-beam with chords of I-beams, which made it possible to significantly reduce the magnitude of local stresses from moments, the magnitude of transverse forces and consequently shear stresses, which are the main factors in the appearance and development of fatigue cracks in their walls.

Предлагаются методика и алгоритм определения параметров модели Шеферда для описания нелинейной вольтамперной характеристики заряда литий-ионного аккумулятора. Результаты моделирования отражают достаточно высокую адекватность алгоритма на тестовом примере в программной среде Simulink Matlab. Подтверждается возможность использования разработанного алгоритма при исследовании режима разряда аккумулятора. Ключевые слова: модель заряда литий-ионного аккумулятора, модель Шеферда, алгоритм определения параметров модели аккумулятора.

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The article examines the development of trade and economic relations of early and medieval states, the development and formation of tourism, examines architectural monuments, which performed different functions, while continuing to be relevant to the present day, in modern conditions. In this regard, the relationship of the organization of architectural space with the functional preference, the purpose of the object and its importance in the social development of society, culture, economy and political life is traced. The theoretical as well as practical significance of the work lies in the fact that the results of this work can be used in the interests of novice architects and designers, as a theoretical material for the planning structure of agroecotouristic complexes. The materials of this work can be used when giving lectures on topics related to the development of the layout of agroecotouristic complexes.