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Floor response spectra with structure–equipment interaction effects by a mode synthesis approach
Author(s) -
Suarez Luis E.,
Singh M. P.
Publication year - 1987
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.4290150202
Subject(s) - modal , mode (computer interface) , spectral line , structural engineering , soil structure interaction , modal analysis , engineering , computer science , physics , finite element method , materials science , astronomy , polymer chemistry , operating system
A mode synthesis‐based direct approach is presented to calculate seismic response of equipment supported on structures. The approach incorporates the effect of the dynamic interaction between the equipment and the supporting structure. The modal properties of the combined structure–equipment system are obtained by synthesizing the modal properties of the individual structures. The seismic input defined in terms of smoothed ground response spectra can be directly utilized in this approach. Both heavy and light equipment can be considered by the approach equally effectively. Numerical examples demonstrating the effectiveness of the proposed approach are presented.