Vibrobase Insulation Of A Building Excited By
The Technical Seismicity Effect Of
Tube Railway Operation
Author(s)
D. Makovička & D. Makovička Jr
Abstract
This paper deals with the application of an elastic elastomer layer at foundation
base level in order to eliminate excessive vibrations propagating to the assessed
building through the geological environment from an underground railway
station structure. The dominant vibrations propagate as non-stationary vibrations
through the subsoil from the tube structure in the close vicinity of the analysed
building structure. For response analysis, the measured time histories in the
construction area were selected and then the typical response was used as an
input for a dynamic analysis of the structure. The solution of vibration transfer
from the subsoil to the structure is demonstrated using the example of a multistorey
reinforced concrete building, founded on a dual foundation plate. An antivibration
layer of rubber has been designed between the two plates. Two 3-D
numerical models of the building take into account the individual storeys, firstly
together with the lay-out of the rubber distribution in the foundation part and
secondly without this rubber part.
Keywords: technical seismicity, vibro-base insulation, elastomer, dynamic
analysis, response prognosis.
1 Introduction
The dynamic effects of subsurface traffic propagating through the ground
environment into the ambient buildings of urban agglomerations have been
acquiring ever increasing importance. Construction firms try to use the areas in
the proximity of underground lines because of their lucrative location, usually
for residential construction. It is these structures erected in the proximity of
Keywords
technical seismicity, vibro-base insulation, elastomer, dynamic
analysis, response prognosis
Related Book
Other papers in this volume
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