Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility
The seismic behavior of asymmetric structures with a flexible diaphragm was studied by conducting inelastic dynamic time-history analyses. Asymmetric structures with different configurations of mass, stiffness, and strength centers, in combination with a wide range of diaphragm flexibility, were eva...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/4149212 |
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| _version_ | 1832551964589686784 |
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| author | Hamed Eivani Abdolreza S. Moghadam Armin Aziminejad Masoud Nekooei |
| author_facet | Hamed Eivani Abdolreza S. Moghadam Armin Aziminejad Masoud Nekooei |
| author_sort | Hamed Eivani |
| collection | DOAJ |
| description | The seismic behavior of asymmetric structures with a flexible diaphragm was studied by conducting inelastic dynamic time-history analyses. Asymmetric structures with different configurations of mass, stiffness, and strength centers, in combination with a wide range of diaphragm flexibility, were evaluated. The behavior of structures was studied by considering three aspects: (1) effect of structural asymmetry on diaphragms deformation; (2) effect of diaphragm flexibility on demands of the lateral load-resisting elements; (3) optimum configuration of mass, stiffness, and strength centers to limit important engineering demand parameters in asymmetric structures with a flexible diaphragm. The results showed that the shear-dominant deformation of diaphragms is sensitive to both structure asymmetry specifications and the degree of diaphragm flexibility; therefore, it can be used for the qualitative classification of the seismic behavior of structures. Also, the center of strength in structures with flexible diaphragm is more important relative to the stiffness center and has a significant effect on engineering demands at all levels of diaphragm flexibility. Moreover, it was found that a suitable configuration of centers in torsionally stiff structures depends on the degree of diaphragm flexibility, in addition to the intensity of earthquakes (structure yield level) and selected engineering demand parameter. |
| format | Article |
| id | doaj-art-95baeffa39974dab966c5ff7eef9477c |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-95baeffa39974dab966c5ff7eef9477c2025-02-03T05:59:53ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/41492124149212Seismic Response of Plan-Asymmetric Structures with Diaphragm FlexibilityHamed Eivani0Abdolreza S. Moghadam1Armin Aziminejad2Masoud Nekooei3Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranInternational Institute of Earthquake Engineering and Seismology (IIEES), Tehran, IranDepartment of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranDepartment of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranThe seismic behavior of asymmetric structures with a flexible diaphragm was studied by conducting inelastic dynamic time-history analyses. Asymmetric structures with different configurations of mass, stiffness, and strength centers, in combination with a wide range of diaphragm flexibility, were evaluated. The behavior of structures was studied by considering three aspects: (1) effect of structural asymmetry on diaphragms deformation; (2) effect of diaphragm flexibility on demands of the lateral load-resisting elements; (3) optimum configuration of mass, stiffness, and strength centers to limit important engineering demand parameters in asymmetric structures with a flexible diaphragm. The results showed that the shear-dominant deformation of diaphragms is sensitive to both structure asymmetry specifications and the degree of diaphragm flexibility; therefore, it can be used for the qualitative classification of the seismic behavior of structures. Also, the center of strength in structures with flexible diaphragm is more important relative to the stiffness center and has a significant effect on engineering demands at all levels of diaphragm flexibility. Moreover, it was found that a suitable configuration of centers in torsionally stiff structures depends on the degree of diaphragm flexibility, in addition to the intensity of earthquakes (structure yield level) and selected engineering demand parameter.http://dx.doi.org/10.1155/2018/4149212 |
| spellingShingle | Hamed Eivani Abdolreza S. Moghadam Armin Aziminejad Masoud Nekooei Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility Shock and Vibration |
| title | Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility |
| title_full | Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility |
| title_fullStr | Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility |
| title_full_unstemmed | Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility |
| title_short | Seismic Response of Plan-Asymmetric Structures with Diaphragm Flexibility |
| title_sort | seismic response of plan asymmetric structures with diaphragm flexibility |
| url | http://dx.doi.org/10.1155/2018/4149212 |
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