Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading
Application of self-centering rocking walls is now widely accepted as a viable alternative to removal of some of the common seismic defects of conventional shear walls including residual drift and significant damage to the base of walls. Despite the different experimental studies on the seismic perf...
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| Format: | Article |
| Language: | fas |
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Sharif University of Technology
2021-08-01
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| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_22186_3891a3360ca7b037c955c832681b281a.pdf |
| _version_ | 1797738822219333632 |
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| author | N. Abbasi H. Akbarzadeh Bengar A. Jafari M. Nazari |
| author_facet | N. Abbasi H. Akbarzadeh Bengar A. Jafari M. Nazari |
| author_sort | N. Abbasi |
| collection | DOAJ |
| description | Application of self-centering rocking walls is now widely accepted as a viable alternative to removal of some of the common seismic defects of conventional shear walls including residual drift and significant damage to the base of walls. Despite the different experimental studies on the seismic performance of rocking walls, few numerical models have been developed to predict the seismic response and damage extent of these walls under seismic loading. The main objective of this study was to present a practical method for numerical modeling and damage estimation for nonlinear behavior of post-tensioned (PT) concrete rocking walls when exposed to earthquake excitations. To this end, PERFORM 3D software was utilized to model self-centering rocking walls. The walls were subjected to a set of seven spectrum compatible ground motions at different intensity levels. To ensure the accuracy of the modeling, the numerical results of the nonlinear analysis were compared with the experimental results, and the results showed that the developed model could predict the behavior of the wall during all ground motions with acceptable accuracy. Moreover, in this study, a damage index was employed to estimate the extent of damage in the developed numerical model. Good agreement between the observed damage in the shake table tests and estimated damage in the developed model was observed. The results of this study indicated that the method for modeling the seismic behavior of the rocking wall could appropriately predict the response and damage extent of these walls under earthquake loading. |
| first_indexed | 2024-03-12T13:49:21Z |
| format | Article |
| id | doaj.art-bf61697834664fdd856bddc0f6f6f4b5 |
| institution | Directory Open Access Journal |
| issn | 2676-4768 2676-4776 |
| language | fas |
| last_indexed | 2024-03-12T13:49:21Z |
| publishDate | 2021-08-01 |
| publisher | Sharif University of Technology |
| record_format | Article |
| series | مهندسی عمران شریف |
| spelling | doaj.art-bf61697834664fdd856bddc0f6f6f4b52023-08-23T07:41:01ZfasSharif University of Technologyمهندسی عمران شریف2676-47682676-47762021-08-0137.22.2354510.24200/j30.2020.55368.272822186Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loadingN. Abbasi0H. Akbarzadeh Bengar1A. Jafari2M. Nazari3Dept. of Civil Engineering University of Mazandaran, BabolsarDept. of Civil Engineering University of Mazandaran, Babolsarof Mechanical Engineering Shanghai Jiao Tong University, Shanghai, ChinaDept. of Civil Engineering California State University Los angles, CA, USAApplication of self-centering rocking walls is now widely accepted as a viable alternative to removal of some of the common seismic defects of conventional shear walls including residual drift and significant damage to the base of walls. Despite the different experimental studies on the seismic performance of rocking walls, few numerical models have been developed to predict the seismic response and damage extent of these walls under seismic loading. The main objective of this study was to present a practical method for numerical modeling and damage estimation for nonlinear behavior of post-tensioned (PT) concrete rocking walls when exposed to earthquake excitations. To this end, PERFORM 3D software was utilized to model self-centering rocking walls. The walls were subjected to a set of seven spectrum compatible ground motions at different intensity levels. To ensure the accuracy of the modeling, the numerical results of the nonlinear analysis were compared with the experimental results, and the results showed that the developed model could predict the behavior of the wall during all ground motions with acceptable accuracy. Moreover, in this study, a damage index was employed to estimate the extent of damage in the developed numerical model. Good agreement between the observed damage in the shake table tests and estimated damage in the developed model was observed. The results of this study indicated that the method for modeling the seismic behavior of the rocking wall could appropriately predict the response and damage extent of these walls under earthquake loading.https://sjce.journals.sharif.edu/article_22186_3891a3360ca7b037c955c832681b281a.pdfself-centering concrete rocking wallsunbounded post-tensioned tendonnonlinear modelingshake table testdamage estimation |
| spellingShingle | N. Abbasi H. Akbarzadeh Bengar A. Jafari M. Nazari Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading مهندسی عمران شریف self-centering concrete rocking walls unbounded post-tensioned tendon nonlinear modeling shake table test damage estimation |
| title | Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| title_full | Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| title_fullStr | Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| title_full_unstemmed | Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| title_short | Numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| title_sort | numerical modeling of seismic response and damage estimation of concrete rocking walls under seismic loading |
| topic | self-centering concrete rocking walls unbounded post-tensioned tendon nonlinear modeling shake table test damage estimation |
| url | https://sjce.journals.sharif.edu/article_22186_3891a3360ca7b037c955c832681b281a.pdf |
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