PDF
Full
Outline
To address the issue of the single energy dissipation form of traditional metal dampers, this paper proposes a new type of metal-double hinge friction hybrid damper, leveraging the characteristics of large yield displacement in bending metallic dampers and small yield displacement in rotational friction dampers. The construction principles and main parameter calculation methods of the hybrid damper are elaborated to achieve the objective of phased energy dissipation from frequent earthquakes to the maximum considered earthquakes. Experimental research on the mechanical performance of the hybrid damper was conducted, comparing the hysteresis curves, strain development, stiffness degradation and energy dissipation capabilities of dampers made of LY160 and Q355 steel materials and in different construction forms. The results show that the hybrid damper has good energy dissipation performance, with fuller hysteresis curves compared to traditional metal dampers. Within the range of metal yield displacement deformation, the damper primarily dissipates energy through friction, exhibiting multi-level yielding characteristics and a higher equivalent viscous damping ratio. The restoring force model for the hybrid damper is proposed and verified with experimental results. By adjusting the parameters of the metal damper and the double hinge friction damper, a performance-based design can be achieved to meet the seismic demands of various application scenarios. A new type of metal-double hinge friction hybrid damper has been developed.
PDF
92
48
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
