Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions
In this research, the effect of P-Delta column (leaning column) on the response of gravitational frames with lateral-load resistance system of base-rocking wall has been investigated. The studied structures have 4-, 8-, 12-, 16-, and 20-stories. Nonlinear dynamic behavior is performed under 22 far-f...
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| Format: | Article |
| Language: | fas |
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University of Qom
2023-02-01
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| Series: | پژوهشهای زیرساختهای عمرانی |
| Subjects: | |
| Online Access: | https://cer.qom.ac.ir/article_2249_41397603fcb53757957d609538a07784.pdf |
| _version_ | 1797232961351843840 |
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| author | Esmaeil Mohammadi Dehcheshmeh Vahid Broujerdian |
| author_facet | Esmaeil Mohammadi Dehcheshmeh Vahid Broujerdian |
| author_sort | Esmaeil Mohammadi Dehcheshmeh |
| collection | DOAJ |
| description | In this research, the effect of P-Delta column (leaning column) on the response of gravitational frames with lateral-load resistance system of base-rocking wall has been investigated. The studied structures have 4-, 8-, 12-, 16-, and 20-stories. Nonlinear dynamic behavior is performed under 22 far-field seismic records and 28 near-field seismic records, half of which are pulse-like, via OpenSees software. The ground motions are scaled at both DBE and MCE levels and applied to the structure. The modeling is done in two dimensions. As a results, it has been shown that 1) the higher modes effect increases with increasing earthquake intensity, 2) the higher modes effect are more visible in the records of far-field and near-field-non pulse-like, 3) residual displacements in The both earthquake levels studied are insignificant and negligible, 4) P-Delta column has been more effective in structures under near-field-pulse-like records, 5) The maximum effect of P-Delta column in increasing the moment of wall under near-field-pulse-like earthquake that the value is 12%, and 6) In general, the effect of the P-Delta column on the base-rocking wall structures in especially the stepping-wall can be ignored. |
| first_indexed | 2024-04-24T16:08:35Z |
| format | Article |
| id | doaj.art-29a5748506a44479a327bdeaf307bb65 |
| institution | Directory Open Access Journal |
| issn | 2783-140X |
| language | fas |
| last_indexed | 2024-04-24T16:08:35Z |
| publishDate | 2023-02-01 |
| publisher | University of Qom |
| record_format | Article |
| series | پژوهشهای زیرساختهای عمرانی |
| spelling | doaj.art-29a5748506a44479a327bdeaf307bb652024-03-31T19:58:49ZfasUniversity of Qomپژوهشهای زیرساختهای عمرانی2783-140X2023-02-018214515610.22091/cer.2022.7994.13732249Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground MotionsEsmaeil Mohammadi Dehcheshmeh0Vahid Broujerdian1Iran University of Science and Technology, Tehran, Iran.Iran University of Science and Technology, Tehran, Iran.In this research, the effect of P-Delta column (leaning column) on the response of gravitational frames with lateral-load resistance system of base-rocking wall has been investigated. The studied structures have 4-, 8-, 12-, 16-, and 20-stories. Nonlinear dynamic behavior is performed under 22 far-field seismic records and 28 near-field seismic records, half of which are pulse-like, via OpenSees software. The ground motions are scaled at both DBE and MCE levels and applied to the structure. The modeling is done in two dimensions. As a results, it has been shown that 1) the higher modes effect increases with increasing earthquake intensity, 2) the higher modes effect are more visible in the records of far-field and near-field-non pulse-like, 3) residual displacements in The both earthquake levels studied are insignificant and negligible, 4) P-Delta column has been more effective in structures under near-field-pulse-like records, 5) The maximum effect of P-Delta column in increasing the moment of wall under near-field-pulse-like earthquake that the value is 12%, and 6) In general, the effect of the P-Delta column on the base-rocking wall structures in especially the stepping-wall can be ignored.https://cer.qom.ac.ir/article_2249_41397603fcb53757957d609538a07784.pdfself-centering systemrocking wallresidual displacementleaning column effecthigher mode effect |
| spellingShingle | Esmaeil Mohammadi Dehcheshmeh Vahid Broujerdian Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions پژوهشهای زیرساختهای عمرانی self-centering system rocking wall residual displacement leaning column effect higher mode effect |
| title | Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions |
| title_full | Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions |
| title_fullStr | Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions |
| title_full_unstemmed | Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions |
| title_short | Investigation of the Leaning Column Effect on Estimating of the Responses of Self-Centering Base-Rocking Walls under Far and Near Field Ground Motions |
| title_sort | investigation of the leaning column effect on estimating of the responses of self centering base rocking walls under far and near field ground motions |
| topic | self-centering system rocking wall residual displacement leaning column effect higher mode effect |
| url | https://cer.qom.ac.ir/article_2249_41397603fcb53757957d609538a07784.pdf |
| work_keys_str_mv | AT esmaeilmohammadidehcheshmeh investigationoftheleaningcolumneffectonestimatingoftheresponsesofselfcenteringbaserockingwallsunderfarandnearfieldgroundmotions AT vahidbroujerdian investigationoftheleaningcolumneffectonestimatingoftheresponsesofselfcenteringbaserockingwallsunderfarandnearfieldgroundmotions |