SPO2IDA has emerged as a convenient tool for the assessment of structures. It relates a structure’s backbone characteristics to a set of incremental dynamic analysis (IDA) curves using static pushover analysis (SPO) results and a library of empirical fitting coefficients for the different branches of the idealised SPO backbone. It permits the quantification of structural performance up to structural collapse as a function of seismic intensity in a simple and efficient manner.
It has been developed mainly for ductile structures that can be sufficiently represented via a SPO backbone with a certain ductile post-yield hardening followed by a post-peak degradation. This behaviour is quite representative of ductile RC and steel moment-resisting frames and has resulted in the tool being widely adopted.
A new library of empirical coefficients have been fitted and proposed by considering a large database of representative backbones to result in an extended SPO2IDA proposal for infilled RC frames.
Please cite as:
Nafeh AMB, O’Reilly GJ, Monteiro R. Simplified seismic assessment of infilled RC frame structures. Bulletin of Earthquake Engineering 2019. DOI: 10.1007/s10518-019-00758-2.
Copyright (C) 2019
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