Our research work on the physical and mechanical properties of centrifuged concrete, the strength and deformability of cylindrical and conical transmission towers made it possible to reveal some incorrect calculations according to the old and new standards. To identify discrepancies in the calculations for the supports with annular section according to the SNiP 2.03.01-84 and according to the SP 63.13330.2012, we carried out the numerical experiments on the example of the transmission tower supports. As the test sample, the cylindrical transmission tower according to the Certification System GOST 22687.2
The article discusses one of the most urgent problems of Russian cities - the lack of green areas in urban environment. In urbanization process with the growth of large cities and an increase in the population, the ecological state of the environment is transformed, and the concepts of “dwelling - environment” are also changed. One of the effective and rational steps towards solving the problem of the lack of green areas in Russian cities is the green roofs use. At the moment, there is a certain typology, as well as many different design solutions using modern building materials for the organization of green roofs. The article analyzes the advantages and disadvantages of roof gardening in detail, also considers the existing regulatory and legal framework governing their structure. Describes the functions of normative documentation on green roofs at all building life cycle stages.
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