Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance
博士 === 國立臺灣科技大學 === 營建工程系 === 97 === In the current design practices, the inelastic deformation of steel bridges under seismic load usually concentrates toward the bottom of the column, which is typically under the ground level. However, it is difficult to inspect or repair if damages occurred in th...
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ndltd-TW-097NTUS55120032015-10-13T14:49:22Z http://ndltd.ncl.edu.tw/handle/24081373505379410714 Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance 預選塑性區鋼橋柱耐震行為之研究 Jie Chen 陳傑 博士 國立臺灣科技大學 營建工程系 97 In the current design practices, the inelastic deformation of steel bridges under seismic load usually concentrates toward the bottom of the column, which is typically under the ground level. However, it is difficult to inspect or repair if damages occurred in this portion. This study examined the behavior of bridge columns with a pre-selected plastic zone away from the bottom of bridge columns. The pre-selected segment is designed following the strength requirement of the bridge column which is subjected to seismic force. Under strong ground excitation, the inelastic deformation of the bridge structure is confined in the pre-selected segment. Special detailing is adopted to enhance the ductility and energy dissipation capacity of the bridge column. After earthquakes, it is easier to perform inspection, to retrofit, or to replace the damaged segment, if necessary. A series of experimental studies were performed to examine the behavior of the proposed steel bridge columns with pre-selected energy dissipation segments. From these studies, it is shown that the seismic resistance of bridge column can be enhanced effectively by adopting this design method. Sheng-Jin Chen 陳生金 2008 學位論文 ; thesis 143 zh-TW |
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博士 === 國立臺灣科技大學 === 營建工程系 === 97 === In the current design practices, the inelastic deformation of steel bridges under seismic load usually concentrates toward the bottom of the column, which is typically under the ground level. However, it is difficult to inspect or repair if damages occurred in this portion. This study examined the behavior of bridge columns with a pre-selected plastic zone away from the bottom of bridge columns. The pre-selected segment is designed following the strength requirement of the bridge column which is subjected to seismic force. Under strong ground excitation, the inelastic deformation of the bridge structure is confined in the pre-selected segment. Special detailing is adopted to enhance the ductility and energy dissipation capacity of the bridge column. After earthquakes, it is easier to perform inspection, to retrofit, or to replace the damaged segment, if necessary. A series of experimental studies were performed to examine the behavior of the proposed steel bridge columns with pre-selected energy dissipation segments. From these studies, it is shown that the seismic resistance of bridge column can be enhanced effectively by adopting this design method.
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author2 |
Sheng-Jin Chen |
author_facet |
Sheng-Jin Chen Jie Chen 陳傑 |
author |
Jie Chen 陳傑 |
spellingShingle |
Jie Chen 陳傑 Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
author_sort |
Jie Chen |
title |
Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
title_short |
Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
title_full |
Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
title_fullStr |
Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
title_full_unstemmed |
Steel Bridge Columns with Pre-Selected Plastic Zone for Seismic Resistance |
title_sort |
steel bridge columns with pre-selected plastic zone for seismic resistance |
publishDate |
2008 |
url |
http://ndltd.ncl.edu.tw/handle/24081373505379410714 |
work_keys_str_mv |
AT jiechen steelbridgecolumnswithpreselectedplasticzoneforseismicresistance AT chénjié steelbridgecolumnswithpreselectedplasticzoneforseismicresistance AT jiechen yùxuǎnsùxìngqūgāngqiáozhùnàizhènxíngwèizhīyánjiū AT chénjié yùxuǎnsùxìngqūgāngqiáozhùnàizhènxíngwèizhīyánjiū |
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