Search citation statements
Paper Sections
Citation Types
Year Published
Publication Types
Relationship
Authors
Journals
Precast concrete frame structures constitute the major a relevant construction technology of the industrial built heritage within the Italian territory. Most of these buildings were designed neglecting seismic actions or according to obsolete seismic design criteria associated with much lower hazard than currently recognised standards. Indeed, the most industrialised areas spread over the Italian territory were declared seismically active since less than 20 years. Thus, governmental bodies, academies, and technical communities are currently engaged in evaluating the seismic risk associated with existing precast structures designed with older code provisions. This paper focuses on the assessment of the seismic performance of industrial buildings, with specific attention on a long-span flat-roof typology representative of modern technologies. Buildings located in areas representative of moderate, average, and high seismic hazard over the Italian territory were designed following an archetype existing building by applying the design criteria of the standards in force after 1996. The seismic performance of the buildings is investigated by several structural analysis techniques such as modal response analysis, non-linear static pushover analysis, and non-linear time-history analysis with a multi-stripe approach. The flexibility of the horizontal diaphragm and the interaction of the resisting frame with the cladding system, including a series of panel-support uncoupled columns, are addressed by exploring progressively advanced modelling strategies up to a detailed assembly comprising explicit modelling of roof members, peripheral panels, and all the related connections. In addition to the non-linear modelling of the column elements, the non-linear behaviour of dowel beam-to-column and slab-to-beam connections, as well as strap tie-back and bracket bearing panel-to-frame connections, is modelled with lumped plasticity approach employing non-linear constitutive laws calibrated on the basis of experimental evidence. Based on the result population from multi-stripe analysis, failure rates are assessed for the three reference sites and for different engineering demand parameters encompassing performance levels from usability preventing damage to global collapse. The results are site-dependant, and the need for retrofit of these typical precast systems is deemed to be urgent for both buildings designed in areas of average and high seismicity.
Precast concrete frame structures constitute the major a relevant construction technology of the industrial built heritage within the Italian territory. Most of these buildings were designed neglecting seismic actions or according to obsolete seismic design criteria associated with much lower hazard than currently recognised standards. Indeed, the most industrialised areas spread over the Italian territory were declared seismically active since less than 20 years. Thus, governmental bodies, academies, and technical communities are currently engaged in evaluating the seismic risk associated with existing precast structures designed with older code provisions. This paper focuses on the assessment of the seismic performance of industrial buildings, with specific attention on a long-span flat-roof typology representative of modern technologies. Buildings located in areas representative of moderate, average, and high seismic hazard over the Italian territory were designed following an archetype existing building by applying the design criteria of the standards in force after 1996. The seismic performance of the buildings is investigated by several structural analysis techniques such as modal response analysis, non-linear static pushover analysis, and non-linear time-history analysis with a multi-stripe approach. The flexibility of the horizontal diaphragm and the interaction of the resisting frame with the cladding system, including a series of panel-support uncoupled columns, are addressed by exploring progressively advanced modelling strategies up to a detailed assembly comprising explicit modelling of roof members, peripheral panels, and all the related connections. In addition to the non-linear modelling of the column elements, the non-linear behaviour of dowel beam-to-column and slab-to-beam connections, as well as strap tie-back and bracket bearing panel-to-frame connections, is modelled with lumped plasticity approach employing non-linear constitutive laws calibrated on the basis of experimental evidence. Based on the result population from multi-stripe analysis, failure rates are assessed for the three reference sites and for different engineering demand parameters encompassing performance levels from usability preventing damage to global collapse. The results are site-dependant, and the need for retrofit of these typical precast systems is deemed to be urgent for both buildings designed in areas of average and high seismicity.
The full text of this preprint has been withdrawn by the authors due to author disagreement with the posting of the preprint. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.