Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature
One of the most important factors that make structures vulnerable to earthquakes is the short distance between structures and epicenter. Near-field earthquakes have special properties, such as increasing acceleration applied to the structure, which distinguishes them from far-field earthquakes. Ther...
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| Format: | Article |
| Language: | English |
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Sciendo
2018-06-01
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| Series: | Civil and Environmental Engineering |
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| Online Access: | http://www.degruyter.com/view/j/cee.2018.14.issue-1/cee-2018-0003/cee-2018-0003.xml?format=INT |
| _version_ | 1811236688789241856 |
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| author | Vatanshenas Ali Rohanimanesh Mohammad Sadegh Mohammadiha Ehsan |
| author_facet | Vatanshenas Ali Rohanimanesh Mohammad Sadegh Mohammadiha Ehsan |
| author_sort | Vatanshenas Ali |
| collection | DOAJ |
| description | One of the most important factors that make structures vulnerable to earthquakes is the short distance between structures and epicenter. Near-field earthquakes have special properties, such as increasing acceleration applied to the structure, which distinguishes them from far-field earthquakes. Therefore, the absorption of input energy for structures located near the faults is very important. Hence, by rotating the earthquake acceleration time history and comparing the resulting spectral acceleration response, the angle which applies the greatest force to the structure on the earthquake directivity side is obtained, and then the performance of a steel structure with viscoelastic dampers (VED) under near-field earthquakes with directivity feature is investigated. After analyzing the structure using nonlinear time history analysis, it was observed that the directivity phenomenon leads to significant increase in the force applied to the structure, but the viscoelastic dampers showed an acceptable performance in both states of with and without directivity. |
| first_indexed | 2024-04-12T12:13:27Z |
| format | Article |
| id | doaj.art-57783ab490e7466a941ff7aa9e04c8ef |
| institution | Directory Open Access Journal |
| issn | 1336-5835 2199-6512 |
| language | English |
| last_indexed | 2024-04-12T12:13:27Z |
| publishDate | 2018-06-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Civil and Environmental Engineering |
| spelling | doaj.art-57783ab490e7466a941ff7aa9e04c8ef2022-12-22T03:33:31ZengSciendoCivil and Environmental Engineering1336-58352199-65122018-06-01141212710.2478/cee-2018-0003cee-2018-0003Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity FeatureVatanshenas Ali0Rohanimanesh Mohammad Sadegh1Mohammadiha Ehsan2Engineering Faculty, Islamic Azad University, Central Tehran Branch, Tehran, Iran.Department of Civil Engineering, Faculty of Technology and Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran.Engineering Faculty, Islamic Azad University, Central Tehran Branch, Tehran, Iran.One of the most important factors that make structures vulnerable to earthquakes is the short distance between structures and epicenter. Near-field earthquakes have special properties, such as increasing acceleration applied to the structure, which distinguishes them from far-field earthquakes. Therefore, the absorption of input energy for structures located near the faults is very important. Hence, by rotating the earthquake acceleration time history and comparing the resulting spectral acceleration response, the angle which applies the greatest force to the structure on the earthquake directivity side is obtained, and then the performance of a steel structure with viscoelastic dampers (VED) under near-field earthquakes with directivity feature is investigated. After analyzing the structure using nonlinear time history analysis, it was observed that the directivity phenomenon leads to significant increase in the force applied to the structure, but the viscoelastic dampers showed an acceptable performance in both states of with and without directivity.http://www.degruyter.com/view/j/cee.2018.14.issue-1/cee-2018-0003/cee-2018-0003.xml?format=INTDirectivity effectNear-field earthquakeSteel structureViscoelastic damperVibration control |
| spellingShingle | Vatanshenas Ali Rohanimanesh Mohammad Sadegh Mohammadiha Ehsan Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature Civil and Environmental Engineering Directivity effect Near-field earthquake Steel structure Viscoelastic damper Vibration control |
| title | Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature |
| title_full | Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature |
| title_fullStr | Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature |
| title_full_unstemmed | Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature |
| title_short | Investigating the Performance of Viscoelastic Dampers (VED) Under Nearfield Earthquakes with Directivity Feature |
| title_sort | investigating the performance of viscoelastic dampers ved under nearfield earthquakes with directivity feature |
| topic | Directivity effect Near-field earthquake Steel structure Viscoelastic damper Vibration control |
| url | http://www.degruyter.com/view/j/cee.2018.14.issue-1/cee-2018-0003/cee-2018-0003.xml?format=INT |
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