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Seismic response of subsystems in irregular buildings

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journal contribution
posted on 20.04.2016 by Stavros Kasinos, Alessandro Palmeri, Mariateresa Lombardo
The component-mode synthesis method is applied to investigate the seismic response of secondary subsystems multi-connected to primary structures with irregularities. The proposed approach is more accurate than the cascade approximation, often used in the design practice, as the primarysecondary dynamic interaction is considered through the modes of vibration of the two components. The results of parametric analyses on a representative case study reveal similar trends in the displacements of the two components for mass irregularities in elevation, while sti ness irregularities in plan can result in significant torsional motion in both components, with the effects in terms of absolute accelerations being in general larger than those associated with the lateral drifts. This suggests that dynamic analyses with the component-mode synthesis method are particularly indicated for the seismic assessment of acceleration-sensitive secondary subsystems.

History

School

  • Architecture, Building and Civil Engineering

Published in

Proceedings of the ICE - Structures and Buildings

Citation

KASINOS, S., PALMERI, A. and LOMBARDO, M., 2016. Seismic response of subsystems in irregular buildings. Proceedings of the ICE - Structures and Buildings, 169 (8), pp. 643-654.

Publisher

© ICE Publishing

Version

NA (Not Applicable or Unknown)

Acceptance date

01/04/2016

Publication date

2016

Notes

Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.

Language

en

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