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A model for pushover analysis of confined masonry structures: implementation and validation.

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Title: A model for pushover analysis of confined masonry structures: implementation and validation.
Authors: Marques, Rui1 marquesmnc@sapo.pt, Lourenço, Paulo B.1
Source: Bulletin of Earthquake Engineering. Dec2013, Vol. 11 Issue 6, p2133-2150. 18p.
Subject Terms: *Building site design & construction, *Reinforced concrete buildings, *Earthquake zones, *Concrete masonry, *Masonry, *Data mining, *Earthquake hazard analysis, *Quasistatic processes
Abstract: Confined masonry (CM) is a typical building technique in Latin American countries. This technique, due to its simplicity of construction and similarity with traditional practices of reinforced concrete building, presents a potential of use in European regions with moderate-to-high seismicity. However, most of the procedures for seismic design in codes for Latin America are force-based, which appears to be inadequate due to the high dissipative response observed for CM. This paper presents a simplified numerical-analytical approach to model CM structures using pushover analysis, aiming to apply performance-based design procedures. First, a data mining process is performed on a database of experimental results collected from lateral tests on CM walls to adjust prediction models for the wall shear strength and to determine the input relevance through a sensitivity analysis. Then, an analytical model of CM structures for pushover analysis is proposed with basis on a wide-column approach that employs an adaptive shear load-displacement constitutive relation. The proposed method is compared with a discrete element model that represents explicitly the confinements-masonry interaction, against the experimental results obtained in a quasi-static test of a full-scale tridimensional CM structure. The accuracy of the predictions from both methods is very satisfactory, allowing to capture the base shear-displacement envelope and also the damage patterns of the structure, thus, demonstrating the ability of the methods to be used in performance-based seismic assessment and design of CM buildings. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 92012763
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: A model for pushover analysis of confined masonry structures: implementation and validation.
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  Data: <searchLink fieldCode="AR" term="%22Marques%2C+Rui%22">Marques, Rui</searchLink><relatesTo>1</relatesTo><i> marquesmnc@sapo.pt</i><br /><searchLink fieldCode="AR" term="%22Lourenço%2C+Paulo+B%2E%22">Lourenço, Paulo B.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Dec2013, Vol. 11 Issue 6, p2133-2150. 18p.
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  Data: *<searchLink fieldCode="DE" term="%22Building+site+design+%26+construction%22">Building site design & construction</searchLink><br />*<searchLink fieldCode="DE" term="%22Reinforced+concrete+buildings%22">Reinforced concrete buildings</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+zones%22">Earthquake zones</searchLink><br />*<searchLink fieldCode="DE" term="%22Concrete+masonry%22">Concrete masonry</searchLink><br />*<searchLink fieldCode="DE" term="%22Masonry%22">Masonry</searchLink><br />*<searchLink fieldCode="DE" term="%22Data+mining%22">Data mining</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Quasistatic+processes%22">Quasistatic processes</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Confined masonry (CM) is a typical building technique in Latin American countries. This technique, due to its simplicity of construction and similarity with traditional practices of reinforced concrete building, presents a potential of use in European regions with moderate-to-high seismicity. However, most of the procedures for seismic design in codes for Latin America are force-based, which appears to be inadequate due to the high dissipative response observed for CM. This paper presents a simplified numerical-analytical approach to model CM structures using pushover analysis, aiming to apply performance-based design procedures. First, a data mining process is performed on a database of experimental results collected from lateral tests on CM walls to adjust prediction models for the wall shear strength and to determine the input relevance through a sensitivity analysis. Then, an analytical model of CM structures for pushover analysis is proposed with basis on a wide-column approach that employs an adaptive shear load-displacement constitutive relation. The proposed method is compared with a discrete element model that represents explicitly the confinements-masonry interaction, against the experimental results obtained in a quasi-static test of a full-scale tridimensional CM structure. The accuracy of the predictions from both methods is very satisfactory, allowing to capture the base shear-displacement envelope and also the damage patterns of the structure, thus, demonstrating the ability of the methods to be used in performance-based seismic assessment and design of CM buildings. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=92012763
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      – Type: doi
        Value: 10.1007/s10518-013-9497-5
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 2133
    Subjects:
      – SubjectFull: Building site design & construction
        Type: general
      – SubjectFull: Reinforced concrete buildings
        Type: general
      – SubjectFull: Earthquake zones
        Type: general
      – SubjectFull: Concrete masonry
        Type: general
      – SubjectFull: Masonry
        Type: general
      – SubjectFull: Data mining
        Type: general
      – SubjectFull: Earthquake hazard analysis
        Type: general
      – SubjectFull: Quasistatic processes
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      – TitleFull: A model for pushover analysis of confined masonry structures: implementation and validation.
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            NameFull: Marques, Rui
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            – D: 01
              M: 12
              Text: Dec2013
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              Y: 2013
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