nicale_2017_eesd_shortened.pdf (2.42 MB)

Seismic performance of buildings retrofitted with nonlinear viscous dampers and adjacent reaction towers

Download (2.42 MB)
journal contribution
posted on 12.01.2018 by Nicola Impollonia, Alessandro Palmeri
An effective strategy of seismic retrofitting consists of installing nonlinear viscous dampers (NLVDs) between the existing building, with insufficient lateral resistance, and some auxiliary towers, specially designed and erected as reaction structures. This allows improving the seismic performance of the existing building without any major alteration to its structural and non- structural elements, which makes this approach particularly appealing for buildings with heritage value. In this paper, the nonlinear governing equations of the coupled lateral-torsional seismic motion are derived from first principles for the general case of a multi-story building connected at various locations in plan and in elevation to an arbitrary number of multi-story towers. This formulation is then used to assess the performance of the proposed retrofitting strategy for a real case study, namely a five-story student hall of residence in the city of Messina, Italy. The results of extensive time-history analyses highlight the key design considerations associated with the stiffness of the reaction towers and the mechanical parameters of the NLVDs, confirming the validity of this approach

History

School

  • Architecture, Building and Civil Engineering

Published in

Earthquake Engineering and Structural Dynamics

Citation

IMPOLLONIA, N. and PALMERI, A., 2018. Seismic performance of buildings retrofitted with nonlinear viscous dampers and adjacent reaction towers. Earthquake Engineering and Structural Dynamics, 47 (5), pp.1329-1351.

Publisher

© Wiley

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

10/12/2017

Publication date

2018

Notes

This is the peer reviewed version of the following article: IMPOLLONIA, N. and PALMERI, A., 2018. Seismic performance of buildings retrofitted with nonlinear viscous dampers and adjacent reaction towers. Earthquake Engineering and Structural Dynamics, 47 (5), pp.1329-1351., which has been published in final form at https://doi.org/10.1002/eqe.3020. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

ISSN

0098-8847

Language

en

Exports