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A combined local damage index for seismic assessment of existing RC structures

Mergos, P.E. and Kappos, A. J. (2013). A combined local damage index for seismic assessment of existing RC structures. Earthquake Engineering and Structural Dynamics, 42(6), pp. 833-852. doi: 10.1002/eqe.2247

Abstract

A new local damage index for existing reinforced concrete (RC) structures is introduced, wherein deterioration caused by all deformation mechanisms (flexure, shear, anchorage slip) is treated separately for each mechanism. Moreover, the additive character of damage arising from the three response mechanisms, as well as the increase in degradation rate caused by their interaction, are fully taken into consideration. The proposed local damage index is then applied, in conjunction with a finite element model developed previously by the authors, to assess seismic damage response of several RC column and frame test specimens with substandard detailing. It is concluded that in all cases and independently from the prevailing mode of failure, the new local damage index describes well the damage pattern of the analysed specimens.

Publication Type: Article
Additional Information: This is the accepted version of the following article: Mergos, PE & Kappos, AJ (2013). A combined local damage index for seismic assessment of existing RC structures. Earthquake Engineering and Structural Dynamics, 42(6), pp. 833-852., which has been published in final form at http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1096-9845
Publisher Keywords: Reinforced concrete, damage index, substandard detailing, flexure, shear, bond-slip
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: School of Mathematics, Computer Science & Engineering > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/3549
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