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Experimental and Analytical Investigation of D-Type Self-Centering Steel Eccentrically Braced Frames with Replaceable Hysteretic Damping Devices
| 题名： | Experimental and Analytical Investigation of D-Type Self-Centering Steel Eccentrically Braced Frames with Replaceable Hysteretic Damping Devices |
| 正文语种： | 英文 |
| 作者： | Lewei Tong1; Yunfeng Zhang, A.M.ASCE2; Xin Zhou3; Arshia Keivan4; Ruipeng Li5 |
| 作者单位： | 1Professor, State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji Univ., Shanghai 200092, China; Dept. of Structural Engineering, Tongji Univ., Shanghai 200092, China. 2Professor, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742 (corresponding author). 3Formerly, Graduate Student, Dept. of Structural Engineering, Tongji Univ., Shanghai 200092, China. 4Graduate Student, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742. 5Formerly, Graduate Student, Dept. of Civil and Environmental Engineering, Univ. of Maryland, College Park, MD 20742. |
| 关键词： | Cyclic loading; Eccentrically braced frames; Experimental testing; Fuse device; Post-tensioning; Replaceable damping device; Seismic performance; Self-centering |
| 摘要： | This paper presents the results of an experimental investigation of D-type self-centering eccentrically braced frames (SCEBF) subjected to cyclic loading. Analytical formulation of the SCEBF module frame’s load-displacement relationship is first presented. A total of five one-bay one-story SCEBF module frame specimens were experimentally tested under cyclic loading to investigate their seismic behavior. Finite-element simulation study of Specimen SCEBF2 was also conducted to assist with specimen design. The replaceable hysteretic damping (RHD) devices made of low-yield steel were installed at the corners of a rocking link beam to use the amplified motion due to the rocking link beam’s rotation and gap opening for energy dissipation. The experimental test results revealed that all the SCEBF specimens were capable of recentering and that the damage was confined to the RHD devices. It was also found that after severe cyclic loading, the SCEBF module frames with replaced RHD devices exhibited almost identical stiffness, strength, recentering ability, and energy dissipation capacity to those of the original structure. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 1 |
| 页码： | 1-13 |
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