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Structural modelling and probabilistic seismic assessment of existing long-span precast industrial buildings.

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Title: Structural modelling and probabilistic seismic assessment of existing long-span precast industrial buildings.
Authors: Capacci, Luca1 (AUTHOR) luca.capacci@polimi.it, Dal Lago, Bruno2 (AUTHOR)
Source: Bulletin of Earthquake Engineering. Apr2025, Vol. 23 Issue 6, p2581-2609. 29p.
Subject Terms: *Engineering standards, *Civil engineering, *Concrete construction, *Structural frames, *Earthquake zones, *Earthquake resistant design, *Earthquake hazard analysis
Abstract: Precast concrete frame structures constitute a major construction technology of the industrial built heritage within the Italian territory. Most of these buildings were conceived according to obsolete seismic design criteria with lower hazard than currently recognised standards, whilst the most industrialised areas spread over the Italian territory were declared seismically active since less than 20 years. This paper focuses on seismic performance assessment of long-span flat-roof industrial buildings, representative of modern design technologies. Buildings located in areas with increasing seismic hazard over the Italian territory were designed following an archetype existing building based on standards in force after 1996. Seismic performance is investigated by 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 are addressed by exploring progressively advanced modelling strategies up to a detailed assembly comprising roof members, peripheral panels, and all related connections. Mechanical non-linearities regarding column elements, dowel beam-to-column and slab-to-beam connections, strap tie-back and bracket bearing panel-to-frame connections are modelled with lumped plasticity employing experimentally calibrated constitutive laws. Seismic risk is assessed by estimating via multi-stripe analysis failure rates encompassing performance levels from usability preventing damage to global collapse. The results are site-dependent, 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. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 184670892
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  Data: Structural modelling and probabilistic seismic assessment of existing long-span precast industrial buildings.
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  Data: <searchLink fieldCode="AR" term="%22Capacci%2C+Luca%22">Capacci, Luca</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> luca.capacci@polimi.it</i><br /><searchLink fieldCode="AR" term="%22Dal+Lago%2C+Bruno%22">Dal Lago, Bruno</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Apr2025, Vol. 23 Issue 6, p2581-2609. 29p.
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  Data: *<searchLink fieldCode="DE" term="%22Engineering+standards%22">Engineering standards</searchLink><br />*<searchLink fieldCode="DE" term="%22Civil+engineering%22">Civil engineering</searchLink><br />*<searchLink fieldCode="DE" term="%22Concrete+construction%22">Concrete construction</searchLink><br />*<searchLink fieldCode="DE" term="%22Structural+frames%22">Structural frames</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+zones%22">Earthquake zones</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+resistant+design%22">Earthquake resistant design</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink>
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  Label: Abstract
  Group: Ab
  Data: Precast concrete frame structures constitute a major construction technology of the industrial built heritage within the Italian territory. Most of these buildings were conceived according to obsolete seismic design criteria with lower hazard than currently recognised standards, whilst the most industrialised areas spread over the Italian territory were declared seismically active since less than 20 years. This paper focuses on seismic performance assessment of long-span flat-roof industrial buildings, representative of modern design technologies. Buildings located in areas with increasing seismic hazard over the Italian territory were designed following an archetype existing building based on standards in force after 1996. Seismic performance is investigated by 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 are addressed by exploring progressively advanced modelling strategies up to a detailed assembly comprising roof members, peripheral panels, and all related connections. Mechanical non-linearities regarding column elements, dowel beam-to-column and slab-to-beam connections, strap tie-back and bracket bearing panel-to-frame connections are modelled with lumped plasticity employing experimentally calibrated constitutive laws. Seismic risk is assessed by estimating via multi-stripe analysis failure rates encompassing performance levels from usability preventing damage to global collapse. The results are site-dependent, 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. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s10518-025-02111-2
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      – Code: eng
        Text: English
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        PageCount: 29
        StartPage: 2581
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      – SubjectFull: Engineering standards
        Type: general
      – SubjectFull: Civil engineering
        Type: general
      – SubjectFull: Concrete construction
        Type: general
      – SubjectFull: Structural frames
        Type: general
      – SubjectFull: Earthquake zones
        Type: general
      – SubjectFull: Earthquake resistant design
        Type: general
      – SubjectFull: Earthquake hazard analysis
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      – TitleFull: Structural modelling and probabilistic seismic assessment of existing long-span precast industrial buildings.
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              M: 04
              Text: Apr2025
              Type: published
              Y: 2025
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