Effectiveness of composite energy dissipation restrainer on mitigating pounding and unseating failure of highway bridges
文献类型：期刊论文
| 作者 | Lin, Lanri1; Huo, Mengzhe2,3 |
| 刊名 | STRUCTURES
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 63页码:15 |
| 关键词 | Bridge engineering Composite energy dissipation restrainer Bridge unseating Energy absorption Nonlinear time history analysis |
| ISSN号 | 2352-0124 |
| DOI | 10.1016/j.istruc.2024.106361 |
| 英文摘要 | In earthquake-prone regions, large relative displacement between piers and girders may lead to pounding damage and unseating failure in highway bridges. To mitigate these effects, this study presents a composite energy dissipation restrainer (CEDR) that incorporates a composite energy tube (CET) as a fundamental component (comprising an aluminum honeycomb buffer and an expansion tube). The energy absorption characteristics of the CET are analyzed, and the influence of the aluminum honeycomb is thoroughly discussed. Furthermore, a design procedure and mechanical model for the CEDR, considering rare earthquakes, are developed. Finally, the effectiveness of the proposed design method and the behavior of limiting displacement of the CEDR are demonstrated through nonlinear time history analysis of an implemented project. The results reveal that the aluminum honeycomb buffer exhibits superior energy absorption capability, enhancing buffering efficiency and reducing damage. Compared to common cable-type restrainers (CCR), the CEDR reduces the relative peak displacement of the bridge by 40%, decreases the frequency of reciprocating displacement by 30% on average, and mitigates impacts on the abutment by 80%. |
| 资助项目 | National Natural Science Foundation of China[51768014] ; Guangxi Innovation -driven Development Special Project[GUIKE AA18118008] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001235507700001 |
| 出版者 | ELSEVIER SCIENCE INC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41563]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Lin, Lanri |
| 作者单位 | 1.Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin, Lanri,Huo, Mengzhe. Effectiveness of composite energy dissipation restrainer on mitigating pounding and unseating failure of highway bridges[J]. STRUCTURES,2024,63:15. |
| APA | Lin, Lanri,&Huo, Mengzhe.(2024).Effectiveness of composite energy dissipation restrainer on mitigating pounding and unseating failure of highway bridges.STRUCTURES,63,15. |
| MLA | Lin, Lanri,et al."Effectiveness of composite energy dissipation restrainer on mitigating pounding and unseating failure of highway bridges".STRUCTURES 63(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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