Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)

Steel Plate Shear Walls (SPSW) provide significant lateral load capacity and can be utilized in the seismic retrofit and upgrade of existing reinforced concrete (r/c) buildings. In this study, the application of SPSW to retrofit a r/c building designed according to older seismic provisions is presen...

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Main Authors: Niki Balkamou, George Papagiannopoulos
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/14/1/443
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author Niki Balkamou
George Papagiannopoulos
author_facet Niki Balkamou
George Papagiannopoulos
author_sort Niki Balkamou
collection DOAJ
description Steel Plate Shear Walls (SPSW) provide significant lateral load capacity and can be utilized in the seismic retrofit and upgrade of existing reinforced concrete (r/c) buildings. In this study, the application of SPSW to retrofit a r/c building designed according to older seismic provisions is presented. Three different options to model SPSW are utilized, i.e., by equivalent braces, by finite elements, and by membrane elements, seeking not only to appropriately simulate the actual behavior of the SPSW but also to achieve the desired seismic behavior of the retrofitted building. Specific seismic response indices, including plastic hinge formations, are derived by non-linear time-history analyses in order to assess the seismic behavior of the retrofitted r/c building. Inspection of the results provided by non-linear analyses in conjunction with the different modeling options of the SPSW leads to the conclusion that the model with the membrane elements exhibits the best performance, implying that for the seismic retrofit and upgrade of existing r/c buildings, the use of membrane elements to model the SPSW is recommended.
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spelling doaj.art-636c7f2b164b482fbc3531af1bde7e782024-01-10T14:52:09ZengMDPI AGApplied Sciences2076-34172024-01-0114144310.3390/app14010443Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)Niki Balkamou0George Papagiannopoulos1Laboratory of Structural Engineering and Applied Mechanics, Hellenic Open University, 26335 Patras, GreeceLaboratory of Structural Engineering and Applied Mechanics, Hellenic Open University, 26335 Patras, GreeceSteel Plate Shear Walls (SPSW) provide significant lateral load capacity and can be utilized in the seismic retrofit and upgrade of existing reinforced concrete (r/c) buildings. In this study, the application of SPSW to retrofit a r/c building designed according to older seismic provisions is presented. Three different options to model SPSW are utilized, i.e., by equivalent braces, by finite elements, and by membrane elements, seeking not only to appropriately simulate the actual behavior of the SPSW but also to achieve the desired seismic behavior of the retrofitted building. Specific seismic response indices, including plastic hinge formations, are derived by non-linear time-history analyses in order to assess the seismic behavior of the retrofitted r/c building. Inspection of the results provided by non-linear analyses in conjunction with the different modeling options of the SPSW leads to the conclusion that the model with the membrane elements exhibits the best performance, implying that for the seismic retrofit and upgrade of existing r/c buildings, the use of membrane elements to model the SPSW is recommended.https://www.mdpi.com/2076-3417/14/1/443steel plate shear walls (SPSW)reinforced concrete buildingequivalent brace modelfinite element modelorthotropic membrane modelnonlinear time-history analysis
spellingShingle Niki Balkamou
George Papagiannopoulos
Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
Applied Sciences
steel plate shear walls (SPSW)
reinforced concrete building
equivalent brace model
finite element model
orthotropic membrane model
nonlinear time-history analysis
title Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
title_full Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
title_fullStr Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
title_full_unstemmed Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
title_short Seismic Upgrade of an Existing Reinforced Concrete Building Using Steel Plate Shear Walls (SPSW)
title_sort seismic upgrade of an existing reinforced concrete building using steel plate shear walls spsw
topic steel plate shear walls (SPSW)
reinforced concrete building
equivalent brace model
finite element model
orthotropic membrane model
nonlinear time-history analysis
url https://www.mdpi.com/2076-3417/14/1/443
work_keys_str_mv AT nikibalkamou seismicupgradeofanexistingreinforcedconcretebuildingusingsteelplateshearwallsspsw
AT georgepapagiannopoulos seismicupgradeofanexistingreinforcedconcretebuildingusingsteelplateshearwallsspsw