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Analysis of the SSI from an instrumented building response
Author(s) -
Zaicenco A.,
Alkaz V.
Publication year - 2008
Publication title -
the structural design of tall and special buildings
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.895
H-Index - 43
eISSN - 1541-7808
pISSN - 1541-7794
DOI - 10.1002/tal.359
Subject(s) - foundation (evidence) , structural engineering , magnitude (astronomy) , stiffness , finite element method , instrumentation (computer programming) , soil structure interaction , ground motion , reinforced concrete , geology , geotechnical engineering , seismology , engineering , physics , computer science , geography , archaeology , astronomy , operating system
Abstract The long‐term project for seismic instrumentation of a 16‐storey reinforced concrete cast‐in‐place dwelling building (str. Roz 15, Chisinau, Republic of Moldova) has provided data on structural response during moderate‐magnitude (Gutenberg‐Richter M GR = 5·0–6·7) earthquakes since the late 1970s. The effect of soil–structure interaction (SSI) is clearly observed from the recorded response. SSI becomes more pronounced for higher level of ground shaking (larger magnitudes), amplifying and increasing the predominant period of the structure and slightly suppressing high frequencies on the foundation in comparison with the free‐field motion. Numerical examples which highlight the problem issues and support the conclusions are presented using finite element method and bidirectional lumped‐mass storey‐stiffness models. Copyright © 2007 John Wiley & Sons, Ltd.