Mechanical Properties of a Novel Plastic Hinge Seismic Fuse Based on Frictional Energy Dissipation to Avoid Brittle Failures in Beam-to-Column Moment-Resistant Joints | |
Li, Xiaodong; Wang, Qitai; Ma, Guangtian | |
刊名 | ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING |
2019-10-29 | |
卷号 | 45期号:5页码:3695-3706 |
关键词 | Friction energy dissipation Plastic hinge Mechanical properties Seismic performance Ductility |
ISSN号 | 2193-567X |
DOI | 10.1007/s13369-019-04214-w |
英文摘要 | Traditional steel structure joints are prone to brittle failure under seismic excitation, and it is difficult to precisely control the location of the resulting plastic hinge or repair these joints after an earthquake. Therefore, based on the energy dissipation principle of the friction pendulum isolation bearing and automobile braking device, a low-cost friction-based plastic hinge (PH) joint is proposed to provide predictable energy dissipation and realize quickly repairable structures. The proposed PH was analysed theoretically, and five half-scale specimens using different bolt and friction materials were tested using cyclic reversing load. The test results showed that models PH-1 and PH-2 with Grade 4.8 and 8.8 limiting bolts, respectively, both provided a plastic rotation angle greater than 0.03 rad, exhibited experimental moment capacities of 0.91 and 0.93 times their theoretical capacities, and exhibited ductility coefficients of 2.75 and 3.14, respectively. It was found that high-strength limiting bolts were unsuitable as they damaged difficult-to-replace PH components. The selected PH configuration experienced damage to only the limiting bolts and friction plates and exhibited good plastic deformation capacity and hysteretic energy dissipation performance that met the plastic rotation, ductility, and friction energy dissipation requirements. Thus, the proposed PH can be used to improve the seismic performance of beam-to-column joints and the frames they form. |
资助项目 | Achievements Transformation Project of the Gansu Provincial Education Department[2017d-03] ; Scientific and Technological Project of the Gansu Provincial Construction Department[jk2017-21] ; National Natural Science Foundation of China[51968043] |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:000493324000003 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/64252] |
专题 | 土木工程学院 |
通讯作者 | Wang, Qitai |
作者单位 | Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Xiaodong,Wang, Qitai,Ma, Guangtian. Mechanical Properties of a Novel Plastic Hinge Seismic Fuse Based on Frictional Energy Dissipation to Avoid Brittle Failures in Beam-to-Column Moment-Resistant Joints[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,2019,45(5):3695-3706. |
APA | Li, Xiaodong,Wang, Qitai,&Ma, Guangtian.(2019).Mechanical Properties of a Novel Plastic Hinge Seismic Fuse Based on Frictional Energy Dissipation to Avoid Brittle Failures in Beam-to-Column Moment-Resistant Joints.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,45(5),3695-3706. |
MLA | Li, Xiaodong,et al."Mechanical Properties of a Novel Plastic Hinge Seismic Fuse Based on Frictional Energy Dissipation to Avoid Brittle Failures in Beam-to-Column Moment-Resistant Joints".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 45.5(2019):3695-3706. |
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