Study on bond properties of corroded NPR (negative Poisson's ratio) steel bar embedded in marine concrete
文献类型：期刊论文
| 作者 | Zhou, Junhao2; Shang, Huaishuai2; Chen, Yu3; Fan, Liang1; Li, Yongsheng4; Liu, Hao4 |
| 刊名 | STRUCTURES
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 57页码:12 |
| ISSN号 | 2352-0124 |
| 关键词 | NPR steel bar Marine concrete Bond behavior Bond-slip constitutive model |
| DOI | 10.1016/j.istruc.2023.105251 |
| 通讯作者 | Shang, Huaishuai(shanghuaishuai@aliyun.com) |
| 英文摘要 | In this work, 48 pull-out test specimens of 150 mm x 150 mm x 150 mm have been examined to assess the bond behavior between corroded NPR (negative Poisson' s ratio steel bar) and marine concrete with different anchorage bond length. Three variables are considered: two types of steel bar (NPR bar and HRB400 steel bar), theoretical corrosion ratio of steel bar (rho = 0, 1\% , 2\% , 3\% ), anchorage length (5 or 7 times of steel bar diameter). Experiment results showed that under the same extent of bars theoretical corrosion ratio and anchorage length, the bond between NPR and marine concrete exhibits lower value than that of HRB400. Moreover, as measured mass corrosion ratio increases, the bond strength of NPR and HRB400 embedded in marine concrete shows a trend of first rising and then falling. For NPR bas, the measured mass corrosion ratio corresponding to the peak value of bond strength is about 1.8 %. Furthermore, considering the condition of rho = 0, 1\% , 2\% , NPR bar specimens with anchorage length of 7d show slightly lower bond capacity than that of specimens with anchorage length of 5d due to the inhomogeneity of bond stress distribution of steel bar and surrounding concrete. Finally, the bond stress-slip constitutive model between two types of steel bars and marine concrete considering different working conditions has been proposed. |
| WOS关键词 | BEHAVIOR |
| 资助项目 | National Natural Science Foundation project[52378245] ; Major Basic Research Projects of Shandong Natural Science Foundation[ZR2022ZD33] ; Qingdao Science and Technology Benefiting the People Demonstration Special Project[23-2-8-cspz-9-nsh] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:001097671900001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/183900]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Shang, Huaishuai |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ Technol, Sch Civil Engn, Qingdao 266033, Peoples R China 3.China Railway Construction Engn Second Constructio, Qingdao 266510, Peoples R China 4.Qingdao AVIC Engn Testing Co Ltd, Qingdao 266033, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Junhao,Shang, Huaishuai,Chen, Yu,et al. Study on bond properties of corroded NPR (negative Poisson's ratio) steel bar embedded in marine concrete[J]. STRUCTURES,2023,57:12. |
| APA | Zhou, Junhao,Shang, Huaishuai,Chen, Yu,Fan, Liang,Li, Yongsheng,&Liu, Hao.(2023).Study on bond properties of corroded NPR (negative Poisson's ratio) steel bar embedded in marine concrete.STRUCTURES,57,12. |
| MLA | Zhou, Junhao,et al."Study on bond properties of corroded NPR (negative Poisson's ratio) steel bar embedded in marine concrete".STRUCTURES 57(2023):12. |
入库方式： OAI收割
来源：海洋研究所
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