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Displacement‐based seismic analysis for out‐of‐plane bending of unreinforced masonry walls
Author(s) -
Doherty K.,
Griffith M. C.,
Lam N.,
Wilson J.
Publication year - 2002
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.126
Subject(s) - unreinforced masonry building , structural engineering , masonry , displacement (psychology) , brick , bending , flexural strength , nonlinear system , engineering , plane (geometry) , geotechnical engineering , mathematics , physics , geometry , civil engineering , psychology , quantum mechanics , psychotherapist
This paper addresses the problem of assessing the seismic resistance of brick masonry walls subject to out‐of‐plane bending. A simplified linearized displacement‐based procedure is presented along with recommendations for the selection of an appropriate substitute structure in order to provide the most representative analytical results. A trilinear relationship is used to characterize the real nonlinear force–displacement relationship for unreinforced brick masonry walls. Predictions of the magnitude of support motion required to cause flexural failure of masonry walls using the linearized displacement‐based procedure and quasi‐static analysis procedures are compared with the results of experiments and non‐linear time‐history analyses. The displacement‐based procedure is shown to give significantly better predictions than the force‐based method. Copyright © 2002 John Wiley & Sons, Ltd.