Patent RU-2624070-C2 (RU)
Inventor: Kochetov Oleg Savelevich
IPC: E04H9/02
Filed: 2015-11-10
Granted: 2017-06-30
Abstract: FIELD: construction. 
     SUBSTANCE: seismic-resistant building containing the vibration-insulated foundation, the horizontal and vertical load-bearing structures with the vibration isolation system, the internal partitions, the building roof, as well as the door and window openings with reinforcement; the base bearing floor slabs in the points of their attachment to the bearing walls of the building are equipped with the spatial vibration isolation system consisting of horizontally arranged vibration isolators and vertically arranged vibration isolators. The vibration isolation system of the foundation with the basement floor is made with simultaneously parting it from adjacent buildings and the surrounding soil with antiseismic-type seams, and for protection against vertical vibrations, the vibration isolators are installed in the niches of the basement floor walls into the sections of the strip foundation. Each set of the vibration isolation system comprises a metal plate, four vibration isolators, two emery paper sheets to exclude the possible sliding of the foundation elements, and two support reinforced concrete blocks, wherein for the building protection against horizontal vibrations spreading in soil, the vibration isolation system is arranged over the vertical faces of the external walls of the basement floor at the level of the foundation and the floor. A retaining wall is arranged along the entire building, the buttresses of which are connected to the butts of the bearing walls through the vibration isolators installed in the niches of the buttresses. Each of the vibration isolators is made in the form of a washer mesh containing a base, a resilient mesh element and washers interacting with bushings, the base is made in form of a plate with the mounting openings, a mesh resilient element, resting with its bottom part on the base and fixed with a bottom washer rigidly connected with the base, and by its upper part fixed with an upper pressure washer rigidly connected to a centrally arranged piston covered with a gap by a coaxially arranged sleeve rigidly connected to the base, and an elastomer, for example from polyurethane, is arranged between the lower piston butt and the sleeve bottom. The mesh structure density of the resilient mesh element is in the optimal range of values: 1.2÷2.0 g/cm 3 . The mesh structure density of the external layers of the resilient mesh element by 1.5 times exceeds the mesh structure density of the internal layers of the resilient mesh element. The resilient mesh element of the washer mesh vibration isolator of the is made combined of a mesh frame filled with an elastomer, for example polyurethane. In the base plate cavities, vibration damping inserts made in the form of a cylindrical damping element are arranged, the inner cavity of which is filled with a vibration damping material, and to the ends of which flat resilient stops are rigidly fixed, the diameter of which is 5÷10% less than the diameter of the base plate cavities, and the length of the cylindrical damping element is 5÷10% less than the length of the base plate cavities. After installing the vibration damping insert, the resilient stops are sealed with a foamed polymer flush with the butt faces of the base plate. 
     EFFECT: strengthening the construction of buildings or structures, reducing their vulnerability when exposed to wind loads and earthquakes, improving their seismic safety, durability and residual life. 
     10 dwg