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Experimental evaluation of changes of dynamic properties of buildings on different grounds
Author(s) -
Maciag Edward
Publication year - 1986
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290140608
Subject(s) - structural engineering , vibration , natural (archaeology) , precast concrete , explosive material , natural frequency , foundation (evidence) , transverse plane , perpendicular , engineering , flexibility (engineering) , rock blasting , geotechnical engineering , geology , physics , acoustics , geometry , mathematics , geography , paleontology , archaeology , statistics
The paper presents an experimental evaluation of changes of dynamic properties (periods of natural vibrations and damping) of three identical precast concrete panel buildings of S storeys and a basement resting on different grounds. Building vibrations were excited by firing of explosives in a quarry. On the basis of the investigations, it may be said that a change of flexibility of the foundation medium under the same low buildings distinctly influences the change of the first natural periods (in two mutually perpendicular directions parallel to the longitudinal and transverse axes) of the buildings.