Effect of Mechanical Splice to Seismic Performance of Precast Column-Foundation Connection.
Saved in:
| Title: | Effect of Mechanical Splice to Seismic Performance of Precast Column-Foundation Connection. |
|---|---|
| Authors: | Wei Zhang1, Deuckhang Lee2 |
| Source: | ACI Structural Journal. Sep2024, Vol. 121 Issue 5, p133-146. 18p. |
| Subjects: | Precast concrete, Personal computer performance, Energy dissipation, Nonlinear analysis, Moments method (Statistics) |
| Abstract: | Identifying plastic hinge property is one of key the factors in successful modeling and subsequent seismic performance evaluation of precast concrete (PC) moment frame systems. Tight mechanical splices are also essentially required in precast connections, and its residual slip can greatly affect the plastic hinge length and finally the emulative performance level of PC seismic forceresisting system (SFRS). However, most of the existing models are not directly applicable in current forms to estimate the plastic hinge length of precast connections with mechanical splices. To address the effects of the residual slip induced in the mechanically spliced reinforcement system and its nonuniform stiffness due to splicing device (or coupler), a detailed nonlinear finite element (FE) analysis model was developed in this study, where plasticity-based constitutive models and a unique connector element were adopted for concrete and mechanically spliced reinforcements, respectively. Existing test results of column-foundation connections were used to verify the analytical approach. On this basis, a robust macro modeling method was also proposed for nonlinear cyclic analysis of PC moment frame systems with mechanical splices in this study. It appears that the magnitude of the residual slip in mechanical splices can greatly undermine the lateral stiffness, energy dissipation capacity, and equivalent viscous damping ratio of PC moment connections, and the proposed macro modeling approach can reasonably capture their behavioral characteristics. [ABSTRACT FROM AUTHOR] |
| Copyright of ACI Structural Journal is the property of American Concrete Institute and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 179547147 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Effect of Mechanical Splice to Seismic Performance of Precast Column-Foundation Connection. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wei+Zhang%22">Wei Zhang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Deuckhang+Lee%22">Deuckhang Lee</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22ACI+Structural+Journal%22">ACI Structural Journal</searchLink>. Sep2024, Vol. 121 Issue 5, p133-146. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Precast+concrete%22">Precast concrete</searchLink><br /><searchLink fieldCode="DE" term="%22Personal+computer+performance%22">Personal computer performance</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+dissipation%22">Energy dissipation</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+analysis%22">Nonlinear analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Moments+method+%28Statistics%29%22">Moments method (Statistics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Identifying plastic hinge property is one of key the factors in successful modeling and subsequent seismic performance evaluation of precast concrete (PC) moment frame systems. Tight mechanical splices are also essentially required in precast connections, and its residual slip can greatly affect the plastic hinge length and finally the emulative performance level of PC seismic forceresisting system (SFRS). However, most of the existing models are not directly applicable in current forms to estimate the plastic hinge length of precast connections with mechanical splices. To address the effects of the residual slip induced in the mechanically spliced reinforcement system and its nonuniform stiffness due to splicing device (or coupler), a detailed nonlinear finite element (FE) analysis model was developed in this study, where plasticity-based constitutive models and a unique connector element were adopted for concrete and mechanically spliced reinforcements, respectively. Existing test results of column-foundation connections were used to verify the analytical approach. On this basis, a robust macro modeling method was also proposed for nonlinear cyclic analysis of PC moment frame systems with mechanical splices in this study. It appears that the magnitude of the residual slip in mechanical splices can greatly undermine the lateral stiffness, energy dissipation capacity, and equivalent viscous damping ratio of PC moment connections, and the proposed macro modeling approach can reasonably capture their behavioral characteristics. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of ACI Structural Journal is the property of American Concrete Institute and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=179547147 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.14359/51740859 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 133 Subjects: – SubjectFull: Precast concrete Type: general – SubjectFull: Personal computer performance Type: general – SubjectFull: Energy dissipation Type: general – SubjectFull: Nonlinear analysis Type: general – SubjectFull: Moments method (Statistics) Type: general Titles: – TitleFull: Effect of Mechanical Splice to Seismic Performance of Precast Column-Foundation Connection. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wei Zhang – PersonEntity: Name: NameFull: Deuckhang Lee IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 08893241 Numbering: – Type: volume Value: 121 – Type: issue Value: 5 Titles: – TitleFull: ACI Structural Journal Type: main |
| ResultId | 1 |
