SU715727A1

SU715727A1 - Foundation under production plant

Info

Publication number: SU715727A1
Application number: SU772526535A
Authority: SU
Inventors: Олег Александрович Савинов; Марк Абрамович Клячко; Александр Петрович Кириллов; Исаак Симонович Литвин; Евгений Григорьевич Бабский
Original assignee: Всесоюзный Научно-Исследовательский Институт Гидротехники Им. В.Е.Веденеева (Внииг)
Priority date: 1977-10-03
Filing date: 1977-10-03
Publication date: 1980-02-15

Description

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Изобретение относитс к области строительства , а именно к конструкци м фундаментов под оборудование, преимущественно под турбоагрегаты, установленные в здании , сооружении на уровне перекрыти .The invention relates to the field of construction, in particular to the structures of the foundations for equipment, mainly for the turbine units installed in a building, a structure at the level of an overlap.

Известен фундамент под оборудование, включаюпдий опорный элемент и гаситель колебаний, упруго присоединенный к фундаменту 1.Known foundation for equipment, inclusive support element and vibration damper, elastically attached to the foundation 1.

Недостатком известного фундамента вл етс снижение колебаний только одной частоты, на которую настроен гаситель, вследствие чего он непригоден дл гашени многочастотных сейсмических колебаний.The disadvantage of the known foundation is to reduce the oscillations of only one frequency to which the damper is tuned, as a result of which it is unsuitable for damping multifrequency seismic vibrations.

Наиболее близким техническим решением вл етс фундамент под оборудование, включаюший опорный элемент и гаситель горизонтальных колебаний, состо щий из инертной массы, в виде ма тника, соединенного с упругими элементами 2.The closest technical solution is a foundation for equipment, including a supporting element and a horizontal oscillation damper, consisting of an inert mass, in the form of a tiller, connected to elastic elements 2.

Недостаток этого фундамента заключаетс в том, что он снижает колебани только в плоскости качани ма тника, дл размещени которого требуетс значительное пространство в пределах фундамента. .The disadvantage of this foundation is that it reduces oscillations only in the plane of swing of the tiller, which requires considerable space within the foundation. .

Целью описываемого изобретени вл етс снижение сейсмических колебаний фундамента .The purpose of the described invention is to reduce the seismic vibrations of the foundation.

Поставленна цель достигаетс за счет того, что в известном фундаменте под оборудование , включающем опорный элемент и гаситель сейсмических колебаний, состо щий из инертной массы, соединенной с упругими элементами, инертна масса гасител выполнена в виде плит, размещенных в уровне перекрыти по периметру опорного элемента с зазором относительно него и перекрыти , а упругие элементы выполнены в виде гибких опорных стоек или стенок, причем в зазорах между опорными элементами и плитами расположены упругие прокладки , толщина которых меньще ширины зазора. Фундамент может быть снабжен дополнительными упругими элементами, размещенными в зазоре между плитами и перекрытием .The goal is achieved due to the fact that in a known foundation for equipment, including a support element and a seismic vibration damper, consisting of an inert mass connected to elastic elements, the inert weight of the damper is made in the form of plates placed in the level of the ceiling around the perimeter of the support element with the gap in relation to it and overlap, and the elastic elements are made in the form of flexible supporting struts or walls, and in the gaps between the supporting elements and plates there are elastic gaskets, the thickness of which is width of gap. The foundation can be provided with additional elastic elements placed in the gap between the plates and the floor.

На фиг. 1 изображен общий вид фундамента; на фиг. 2 - то же вид сверху.FIG. 1 shows a general view of the foundation; in fig. 2 - the same top view.

Claims

The equipment foundation consists of a support element. 1 and a seismic oscillation damper consisting of an inert mass 2 connected to elastic elements 3. Inert weight 2 of the damper is made in the form of plates placed in the level of the overlap 4 along the perimeter of the support element 1 with gaps 5, b relative to it 1 and overlapped 4, and the elastic elements 3 are made in the form of flexible support struts or walls. Moreover, in the gaps 5 between the supporting elements 1 and 2 plates, there are elastic gaskets 7, f & The foundation may be provided with additional resilient elements 8 placed in the gap between the plates 2 and the overlap 4. The principle of operation of the foundation for the equipment is as follows. Seismic vibrations of the earth's surface cause corresponding vibrations of the support element 1 and the inert masses 2. In view of the different dynamic characteristics, their movements during vibrations will be different, which will result in mutual collisions through elastic gaskets 7 and damping vibrations. The frequency characteristic of the quencher can be additionally adjusted by installing elastic elements 8: The use of the foundation for equipment reduces seismic vibrations of the foundation. Claims. 1. Equipment foundation, mainly for turbine units installed in a building, construction at an overlap level, including a support element and a seismic vibration damper, consisting of an inert mass connected to elastic elements, characterized in that, in order to reduce the seismic vibrations of the foundation , the inert mass of the quencher is made in the form of plates placed in the level of the overlap around the perimeter of the support element with a gap relative to it and the overlap, and the elastic elements are made in the form of flexible support struts or walls, and in the gaps between the support elements and plates there are elastic gaskets, the thickness of which, ix is less than the width of the gap, 2. The foundation according to claim 1, characterized in that, in order to expand the possibility of adjusting the frequency characteristics of the damper, it is equipped with additional elastic elements, placed in the gap between the plates and the ceiling. Sources of information taken into account in the examination 1. Rausch E. Fundamentals of mashin, Stroyizdat, Moscow, 1965, p. 366-371.

2. USSR author's certificate No. 207581, cl. F 16 f 15/00, 1967.

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