The Open Construction & Building Technology Journal




ISSN: 1874-8368 ― Volume 12, 2018

Nonlinear Dynamic Analysis of Masonry Buildings and Definition of Seismic Damage States



A.J. Kappos1, 2, *, V.K. Papanikolaou2
1 Department of Civil Engineering, City University, London, UK
2 Department of Civil Engineering, Aristotle University of Thessaloniki, Greece

Abstract

A large part of the building stock in seismic-prone areas worldwide are masonry structures that have been designed without seismic design considerations. Proper seismic assessment of such structures is quite a challenge, particularly so if their response well into the inelastic range, up to local or global failure, has to be predicted, as typically required in fragility analysis. A critical issue in this respect is the absence of rigid diaphragm action (due to the presence of relatively flexible floors), which renders particularly cumbersome the application of popular and convenient nonlinear analysis methods like the static pushover analysis. These issues are addressed in this paper that focusses on a masonry building representative of Southern European practice, which is analysed in both its pristine condition and after applying retrofitting schemes typical of those implemented in pre-earthquake strengthening programmes. Nonlinear behaviour is evaluated using dynamic response-history analysis, which is found to be more effective and even easier to apply in this type of building wherein critical modes are of a local nature, due to the absence of diaphragm action. Fragility curves are then derived for both the initial and the strengthened building, exploring alternative definitions of seismic damage states, including some proposals originating from recent international research programmes.

Keywords: Damage states, Masonry buildings, Nonlinear analysis, Seismic fragility assessment.


Article Information


Identifiers and Pagination:

Year: 2016
Volume: 10
Issue: Suppl 2: M2
First Page: 192
Last Page: 209
Publisher Id: TOBCTJ-10-192
DOI: 10.2174/1874836801610010192

Article History:

Received Date: 15/1/2015
Revision Received Date: 15/5/2015
Acceptance Date: 1/7/2015
Electronic publication date: 31/05/2016
Collection year: 2016

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© Kappos & Papanikolaou; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at Department of Civil Engineering, City University, London, UK; Tel: +44 20 70408956; E-mail: andreas.Kappos.1@city.ac.uk


Endorsements



"We greatly appreciate the efficient, professional and rapid processing of our paper by your team. The editors are so kind and professional to send us the reviewers' feedback in time. Those comments were all valuable and very helpful for us in revising and improving our paper."


Hailong Zhao
School of Civil Engineering,
Tianjin University, Tianjin,
China


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