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A platform for research: civil engineering, architecture and urbanism
Maximum inelastic displacement of mainshock-damaged structures under succeeding aftershock
Abstract To facilitate the rapid, though, reliable assessment of mainshock-damaged structures against the succeeding aftershock excitations, the γ-index is introduced, defined as the ratio of the residual displacement of a structure under the mainshock excitation over the aftershock-induced maximum inelastic displacement of the damaged structure. Over 200 mainshock-aftershock sequences from very dense and stiff soil profiles were chosen to perform nonlinear response history analyses of single degree of freedom systems and the influence of structural, strong ground motion and site-specific parameters on the γ-index was assessed. An equation for the γ-index is proposed to predict the performance of the damaged structure under aftershocks.
Highlights The γ is proposed to estimate the aftershock-induced maximum displacements of mainshock-damaged structures. The performance of the γ is evaluated by considering the effect of structural properties and ground motion parameters. A simplified prediction equation of the γ is introduced.
Maximum inelastic displacement of mainshock-damaged structures under succeeding aftershock
Abstract To facilitate the rapid, though, reliable assessment of mainshock-damaged structures against the succeeding aftershock excitations, the γ-index is introduced, defined as the ratio of the residual displacement of a structure under the mainshock excitation over the aftershock-induced maximum inelastic displacement of the damaged structure. Over 200 mainshock-aftershock sequences from very dense and stiff soil profiles were chosen to perform nonlinear response history analyses of single degree of freedom systems and the influence of structural, strong ground motion and site-specific parameters on the γ-index was assessed. An equation for the γ-index is proposed to predict the performance of the damaged structure under aftershocks.
Highlights The γ is proposed to estimate the aftershock-induced maximum displacements of mainshock-damaged structures. The performance of the γ is evaluated by considering the effect of structural properties and ground motion parameters. A simplified prediction equation of the γ is introduced.
Maximum inelastic displacement of mainshock-damaged structures under succeeding aftershock
Ji, Duofa (author) / Wen, Weiping (author) / Zhai, Changhai (author) / Katsanos, Evangelos I. (author)
2020-05-24
Article (Journal)
Electronic Resource
English
Residual displacement ratios of structures under mainshock-aftershock sequences
| British Library Online Contents | 2019