When performing verification calculations during the survey of building structures, the use of calculation software is limited by the standard algorithm, which does not always allow taking into account the impact of certain pathologies and damages on the bearing capacity and stability of structural elements and objects as a whole. The article offers a variant of using the software package “Lira 9.6” to assess the load-bearing capacity of a building with a monolithic reinforced concrete frame, taking into account the most characteristic pathologies for objects of this type.
When determining the strength of concrete in reinforced concrete structures by non-destructive methods, factors such as temperature, humidity and the stress-strain state of the structure can have a significant impact on the accuracy of the devices. The impact of these factors, which increases with increasing humidity, begins with the surface areas of concrete structures. Up to 75% of building structures are exposed to the destructive effects of atmospheric and industrial environments, of which concrete and reinforced concrete structures account for about 500 million m2 The article considers the degree of influence of these factors on the accuracy of non-destructive testing devices when using various methods for determining the strength of concrete.
Приведена модель гасителя динамических воздействий, устанавливаемого на конструкцию или ее элемент, на который возможно действие ударной, вибрационной или другой динамической нагрузки. Гаситель состоит из вязких и упругих элементов, соединенных параллельно и последовательно. Исследовано влияние параметров вязкости и упругости гасителя на нормальное перемещение точек защищаемой конструкции и на нормальное ускорение, которое передается непосредственно от гасителя нижерасположенным элементам. Ключевые слова: вязкоупругий элемент, вынужденные колебания, нормальное перемещение, ускорение защищаемой конструкции.
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