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

doi:10.1007/s13369-019-04214-w

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	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
	2020-05-01
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.
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000493324000003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155313]
专题	土木工程学院
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,2020,45(5):3695-3706.
APA	Li, Xiaodong,Wang, Qitai,&Ma, Guangtian.(2020).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(2020):3695-3706.