Reduction of seismic loads for transport construction facilities using dry friction elements

Abstract

In the city of Almaty, a seismically insulated building using dry friction elements was built at a special training ground. An engineering-seismometric service station is installed on the building. The dynamics of the building under the influence of accelerograms of real earthquakes in the city of Almaty is being studied. Accelerograms of the Baysorun earthquake recorded on solid soils and the Zhalanash-Tyup earthquake recorded on clay soils are used. Spectral coefficients are obtained for various values of the dry friction coefficient. It is shown that on solid soils the use of seismic isolation with dry friction elements based on fluoroplastic gaskets reduces seismic loads by half. On clay soils, the use of such a system of seismic isolation seems inappropriate. The results of the work can be used for seismic isolation of transport infrastructure facilities.