Case study of seismic performance assessment of irregular RC buildings: hospital structure of Avezzano (L’Aquila, Italy) View Full Text


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Article Info

DATE

2015-03

AUTHORS

Massimiliano Ferraioli

ABSTRACT

Most published studies on inelastic earthquake response of non-symmetric buildings are based on simplified inelastic, highly idealized models, while general conclusions regarding the inelastic torsional response of multistory building are still lacking. This paper aims to provide a useful contribution in the study of the torsional response of real irregular buildings. To this aim, the manuscript reports the comprehensive study on the seismic vulnerability of an irregular RC building: the hospital building of Avezzano (L’Aquila Italy). For this multi-story building, which is irregular in both plan and elevation, the application of nonlinear static evaluation procedures is by no means straightforward. The study proposes a nonlinear static procedure based on pushover analysis under the multimodal distribution of lateral loads and a capacity spectrum method. This pushover procedure accounts for mass distribution, higher modes contribution and mode-shapes correlation. Furthermore, due to its non-iterative feature, it avoids problems of non-convergence and multiple solutions of the conventional capacity spectrum method. Applied to a real case study, the procedure is used to investigate, in a 3D plan irregular building, the sensitivity of torsional inelastic response to lateral force distribution, higher modes contribution, accidental eccentricity and controlled point for monitoring the target displacement. More... »

PAGES

141-156

References to SciGraph publications

  • 2014. Eurocode 8 - Design of structures for earthquake resistance in DICTIONARY GEOTECHNICAL ENGINEERING/WÖRTERBUCH GEOTECHNIK
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    http://scigraph.springernature.com/pub.10.1007/s11803-015-0012-7

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    http://dx.doi.org/10.1007/s11803-015-0012-7

    DIMENSIONS

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