Devices for protecting bridge superstructure from pounding and unseating damages: an overview
Previous earthquakes have highlighted the seismic vulnerability of bridges due to excessive movements at expansion joints. This movement could lead to the catastrophic unseating failure if the provided seat width is inadequate. Moreover, seismic pounding is inevitable during a strong earthquake due...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Published: |
Taylor & Francis
2017
|
| Online Access: | http://hdl.handle.net/20.500.11937/11337 |
| _version_ | 1848747778657746944 |
|---|---|
| author | Shrestha, Bipin Hao, Hong Bi, Kaiming |
| author_facet | Shrestha, Bipin Hao, Hong Bi, Kaiming |
| author_sort | Shrestha, Bipin |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Previous earthquakes have highlighted the seismic vulnerability of bridges due to excessive movements at expansion joints. This movement could lead to the catastrophic unseating failure if the provided seat width is inadequate. Moreover, seismic pounding is inevitable during a strong earthquake due to the limited gap size normally provided at the expansion joints. Various types of restrainers, dampers and other devices have been proposed to limit the joint movement or to accommodate the joint movement so that the damages caused by excessive relative displacements could be mitigated. To select and design appropriate devices to mitigate the relative displacement-induced damages to bridge structures during earthquake shaking, it is important that results from the previous studies are well understood. This paper presents an overview on various pounding and unseating mitigation devices that have been proposed by various researchers. Based on an extensive review of up-to-date literatures, the merits and limitations of these devices are discussed. |
| first_indexed | 2025-11-14T06:54:33Z |
| format | Journal Article |
| id | curtin-20.500.11937-11337 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:54:33Z |
| publishDate | 2017 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-113372019-02-19T05:34:46Z Devices for protecting bridge superstructure from pounding and unseating damages: an overview Shrestha, Bipin Hao, Hong Bi, Kaiming Previous earthquakes have highlighted the seismic vulnerability of bridges due to excessive movements at expansion joints. This movement could lead to the catastrophic unseating failure if the provided seat width is inadequate. Moreover, seismic pounding is inevitable during a strong earthquake due to the limited gap size normally provided at the expansion joints. Various types of restrainers, dampers and other devices have been proposed to limit the joint movement or to accommodate the joint movement so that the damages caused by excessive relative displacements could be mitigated. To select and design appropriate devices to mitigate the relative displacement-induced damages to bridge structures during earthquake shaking, it is important that results from the previous studies are well understood. This paper presents an overview on various pounding and unseating mitigation devices that have been proposed by various researchers. Based on an extensive review of up-to-date literatures, the merits and limitations of these devices are discussed. 2017 Journal Article http://hdl.handle.net/20.500.11937/11337 10.1080/15732479.2016.1170155 Taylor & Francis fulltext |
| spellingShingle | Shrestha, Bipin Hao, Hong Bi, Kaiming Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title | Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title_full | Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title_fullStr | Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title_full_unstemmed | Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title_short | Devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| title_sort | devices for protecting bridge superstructure from pounding and unseating damages: an overview |
| url | http://hdl.handle.net/20.500.11937/11337 |