Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls
In this study, the effect of importance factor (IF) on RC frames with and without infill walls, in both with and without opening conditions, is evaluated against progressive collapse. For this purpose, RC building with the intermediate moment frame system for three levels of importance factor that t...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Semnan University
2023-05-01
|
| Series: | Journal of Rehabilitation in Civil Engineering |
| Subjects: | |
| Online Access: | https://civiljournal.semnan.ac.ir/article_6709_b55a012be2f1cdf85b83a0fccdf94bb2.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832593545808052224 |
|---|---|
| author | Seyed Ali Hassanzadeh Hamid Reza Ashrafi Mehdi Komasi |
| author_facet | Seyed Ali Hassanzadeh Hamid Reza Ashrafi Mehdi Komasi |
| author_sort | Seyed Ali Hassanzadeh |
| collection | DOAJ |
| description | In this study, the effect of importance factor (IF) on RC frames with and without infill walls, in both with and without opening conditions, is evaluated against progressive collapse. For this purpose, RC building with the intermediate moment frame system for three levels of importance factor that these levels are intermediate, high, and very high IF is designed. OpenSees program is utilized for modeling RC frames. For this aim, the accuracy of modeling of column removal and infill walls are compared with experimental researches. In the present study, nonlinear dynamic analysis (NDA) and push-down analysis (PDA) were used for evaluating RC frames against progressive collapse in each column removal scenario. Analysis results showed that the effect of the importance factors in NDA and PDA are reduced to less than 24% and 13% when the infill walls are modeled in the frames. In the frame without infill walls, the influence of the importance factor is increased up to 36.1%. Also, in this study, it was found that the role of importance factors depends on the place of the removed column, which the effect of middle column removal is relatively twice than the corner column removal due to more redundancy. Other results about infill walls effects and opening in infill walls are presented in the paper. Finally, a proposed approach for column removal in NDA via OpenSees program is introduced, and its high accuracy is shown. This developed algorithm can remove any element of structure in different time intervals. |
| format | Article |
| id | doaj-art-5cd04b0faa984d52b9cb3ba150a8b4ef |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-5cd04b0faa984d52b9cb3ba150a8b4ef2025-01-20T11:34:31ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232023-05-01112649310.22075/jrce.2022.24267.15396709Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill WallsSeyed Ali Hassanzadeh0Hamid Reza Ashrafi1Mehdi Komasi2Teacher at Building Cluster, Ministry of Education, Lorestan, IranAssistant Professor, Department of Civil Engineering, Razi University, Kermanshah, IranAssociate Professor, Department of Civil Engineering, Ayatollah Ozma Borujerdi University, Borujerd, IranIn this study, the effect of importance factor (IF) on RC frames with and without infill walls, in both with and without opening conditions, is evaluated against progressive collapse. For this purpose, RC building with the intermediate moment frame system for three levels of importance factor that these levels are intermediate, high, and very high IF is designed. OpenSees program is utilized for modeling RC frames. For this aim, the accuracy of modeling of column removal and infill walls are compared with experimental researches. In the present study, nonlinear dynamic analysis (NDA) and push-down analysis (PDA) were used for evaluating RC frames against progressive collapse in each column removal scenario. Analysis results showed that the effect of the importance factors in NDA and PDA are reduced to less than 24% and 13% when the infill walls are modeled in the frames. In the frame without infill walls, the influence of the importance factor is increased up to 36.1%. Also, in this study, it was found that the role of importance factors depends on the place of the removed column, which the effect of middle column removal is relatively twice than the corner column removal due to more redundancy. Other results about infill walls effects and opening in infill walls are presented in the paper. Finally, a proposed approach for column removal in NDA via OpenSees program is introduced, and its high accuracy is shown. This developed algorithm can remove any element of structure in different time intervals.https://civiljournal.semnan.ac.ir/article_6709_b55a012be2f1cdf85b83a0fccdf94bb2.pdfelement removalimportance factornonlinear dynamic analysispushdown analysisopensees |
| spellingShingle | Seyed Ali Hassanzadeh Hamid Reza Ashrafi Mehdi Komasi Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls Journal of Rehabilitation in Civil Engineering element removal importance factor nonlinear dynamic analysis pushdown analysis opensees |
| title | Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls |
| title_full | Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls |
| title_fullStr | Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls |
| title_full_unstemmed | Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls |
| title_short | Macro Modeling of Column Removal in RC Frames with Consideration of Importance Factor and Infill Walls |
| title_sort | macro modeling of column removal in rc frames with consideration of importance factor and infill walls |
| topic | element removal importance factor nonlinear dynamic analysis pushdown analysis opensees |
| url | https://civiljournal.semnan.ac.ir/article_6709_b55a012be2f1cdf85b83a0fccdf94bb2.pdf |
| work_keys_str_mv | AT seyedalihassanzadeh macromodelingofcolumnremovalinrcframeswithconsiderationofimportancefactorandinfillwalls AT hamidrezaashrafi macromodelingofcolumnremovalinrcframeswithconsiderationofimportancefactorandinfillwalls AT mehdikomasi macromodelingofcolumnremovalinrcframeswithconsiderationofimportancefactorandinfillwalls |