Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges
Progressive collapse is a persistent spread and enlargement of initial local failure of structures characterized by inconsistency between the initial failure and its resulting extensive collapse. Although, great contributions have been made towards the progressive collapse of building structures, co...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/8348596 |
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| author | Amir Seyedkhoei Reza Akbari Shahrokh Maalek |
| author_facet | Amir Seyedkhoei Reza Akbari Shahrokh Maalek |
| author_sort | Amir Seyedkhoei |
| collection | DOAJ |
| description | Progressive collapse is a persistent spread and enlargement of initial local failure of structures characterized by inconsistency between the initial failure and its resulting extensive collapse. Although, great contributions have been made towards the progressive collapse of building structures, comparably small attention has been paid to bridge structures. In this study, the procedure of progressive collapse of bridges with concrete prestressed voided slab under earthquakes and effects of other parameters on propagation of collapse of regular, semiregular, and irregular bridges are investigated. At first, a bridge specimen, which its shake table test results were provided by previous researchers, was modeled and verified using the applied element method. Then, the progressive collapse of the box girder bridge was investigated. In the next step, progressive collapse process of the same bridge with posttensioned voided slab under earthquakes was studied using nonlinear time history analysis. Irregularities of the piers were analyzed parametrically. The results show that domino-type progressive collapse happens in bridges with voided slab after the initial failure of the deck at the seating of bridge abutment. Also, it is concluded that, type of the deck, height of the piers, and ground slope have a great effect on the progressive collapse procedure of both regular and irregular bridges with voided slab deck. |
| format | Article |
| id | doaj-art-41c9f4611ddc414da74e5979a6661522 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-41c9f4611ddc414da74e5979a66615222025-02-03T05:58:34ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/83485968348596Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular BridgesAmir Seyedkhoei0Reza Akbari1Shahrokh Maalek2Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, IranSenior Bridge and Structural Engineer, Road Maintenance and Transportation Organization (RMTO), Tehran, IranLecturer, School of Civil Engineering, College of Engineering, University of Tehran, Tehran, IranProgressive collapse is a persistent spread and enlargement of initial local failure of structures characterized by inconsistency between the initial failure and its resulting extensive collapse. Although, great contributions have been made towards the progressive collapse of building structures, comparably small attention has been paid to bridge structures. In this study, the procedure of progressive collapse of bridges with concrete prestressed voided slab under earthquakes and effects of other parameters on propagation of collapse of regular, semiregular, and irregular bridges are investigated. At first, a bridge specimen, which its shake table test results were provided by previous researchers, was modeled and verified using the applied element method. Then, the progressive collapse of the box girder bridge was investigated. In the next step, progressive collapse process of the same bridge with posttensioned voided slab under earthquakes was studied using nonlinear time history analysis. Irregularities of the piers were analyzed parametrically. The results show that domino-type progressive collapse happens in bridges with voided slab after the initial failure of the deck at the seating of bridge abutment. Also, it is concluded that, type of the deck, height of the piers, and ground slope have a great effect on the progressive collapse procedure of both regular and irregular bridges with voided slab deck.http://dx.doi.org/10.1155/2019/8348596 |
| spellingShingle | Amir Seyedkhoei Reza Akbari Shahrokh Maalek Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges Shock and Vibration |
| title | Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges |
| title_full | Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges |
| title_fullStr | Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges |
| title_full_unstemmed | Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges |
| title_short | Earthquake-Induced Domino-Type Progressive Collapse in Regular, Semiregular, and Irregular Bridges |
| title_sort | earthquake induced domino type progressive collapse in regular semiregular and irregular bridges |
| url | http://dx.doi.org/10.1155/2019/8348596 |
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