Mainshock-aftershock damage assessment of infilled RC structures

Furtado, André; Rodrigues, Hugo; Varum, Humberto; Arêde, António

http://hdl.handle.net/10400.8/4162

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Abstract(s)

The primary objective of this manuscript is to present a numerical study regarding the mainshock-aftershock damage assessment of infilled reinforced concrete (RC) structures. For this, an 8 storey building was built in the OpenSees software considering different modelling strategies: (i) RC structure without infill masonry walls; (ii) RC structure with infill walls considering only the in-plane behaviour; and (iii) RC structure with infill walls considering the combined in-plane and out-of-plane non-linear behaviour. Two different approaches are proposed to assess the seismic vulnerability of undamaged and damaged structures due to mainshock-aftershock sequences. Both methodologies are described throughout the manuscript. Incremental dynamic analysis were carried out to achieve fragility curves for different damage states of the structures. A comparison between the undamaged and damaged structures’ fragility curves will be presented and discussed which will allow to assess the effect of the mainshock-aftershock. Furthermore, the effect of the infill walls presence and the consideration of the combined in -plane and out-of-plane behaviour will be discussed.

Keywords

RC structure Masonry infill walls Numerical modelling Mainshock-aftershock Seismic vulnerability

URI

http://hdl.handle.net/10400.8/4162

Citation

Furtado, André & Rodrigues, Hugo & Arêde, António & Varum, H. (2018). Mainshock-aftershock damage assessment of infilled RC structures. Engineering Structures. 175. 645-660. 10.1016/j.engstruct.2018.08.063.