DOI: 10.18503/1995-2732-2022-20-4-137-143
Abstract
Problem Statement (Relevance). A current increase in dynamic loads transferred to foundations and other structures of buildings and facilities is attributed to the intensive development of industrial production and higher equipment capacity. This contributes to the development of new design solutions to protect process equipment and operating personnel from adverse vibration effects. Under conditions of dynamic impact, the most efficient building structures are considered to be structures made of monolithic reinforced concrete, in particular, buildings with a beamless frame and transverse or rigid reinforcement installed in the floor slab. The disadvantage of this design is the inability to dampen vibrations under various dynamic impacts, which adversely influence strength of the butt joint, the sanitary and hygienic conditions of people staying on them and stability of equipment. Now, there are many design options of various vibration protection devices to protect against dynamic effects of tools and equipment installed on vibrating bases, and bases and foundations. Vibration dampers are of importance among the existing vibration protection methods. They represent additional dynamic devices attached to change a vibrational state of facilities under vibration protection. Originality. This paper proposes a butt joint of a reinforced concrete floor with a column, containing a floor slab, columns of the upper and lower tiers, column reinforcing cages, floor slabs and metal inserts with vibration dampers made of an elastic material with strength exceeding concrete strength of the column (e.g. bitumen). Result. The proposed design of the butt joint makes it possible to reduce the intensity of vibration oscillations of a beamless reinforced concrete floor and the column of the upper tier during dynamic loads on the column of the lower tier. Practical Relevance. Ensuring an increase in strength of the butt joint of a monolithic reinforced concrete floor with a column and a significant increase in the durability of the protected structure.
Keywords
reinforced concrete structures, dynamic loads, vibration, reinforced concrete floor joint with a column, vibration dampers, interlocking structures
For citation
Krishan A.L., Pesin A.M., Lokotunina N.M., Matveev S.V., Pivovarova K.G. A New Construction Solution for Vi-bration Protection of the Butt Joint of Reinforced Concrete Floors Using Interlocking Structures. Vestnik Magnitogor-skogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Tech-nical University]. 2022, vol. 20, no. 4, pp. 137-143. https://doi.org/10.18503/1995-2732-2022-20-4-137-143
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