A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a high-ductility anti-fatigue core energy dissipation structure and an axial steel damper. The axial steel damper comprises a high-ductility anti-fatigue core energy dissipation structure and a peripheral restraining component. The core energy dissipation structure at least comprises a first steel plate and a second steel plate, and the second steel plate must only be adjacent to the first steel plate and is connected with the first steel plate in a welding mode. The first steel plate material has high yield strength and plastic deformation flow stress compared with the second steel plate material; the plastic deformation work hardening rate of the first steel plate material is not less than that of the second steel plate material; the fatigue life of the first steel plate material is not shorter than that of the second steel plate material. The ratio of the limit allowable displacement to the calculated yield displacement of the axial steel damper is not less than 7, and the limit allowable displacement is not less than 1/80 of the length of the axial steel damper; under the limit allowable displacement, the axial steel damper can complete at least 30 cycles of cyclic stretching-compression plastic deformation.
本发明涉及一种高延性抗疲劳芯部耗能结构及轴向钢阻尼器。轴向钢阻尼器包括高延性抗疲劳芯部耗能结构和外围约束构件；所述芯部耗能结构至少包含一块第一钢板和一块第二钢板，第二钢板必须而且只能与第一钢板相邻并通过焊接方式相连接。第一钢板材料相较于第二钢板材料具有高屈服强度和塑性变形流动应力；第一钢板材料的塑性变形加工硬化率不小于第二钢板材料的塑性变形加工硬化率；第一钢板材料的疲劳寿命不小于第二钢板材料的疲劳寿命。本发明轴向钢阻尼器的极限允许位移与计算屈服位移之比不小于7，且极限允许位移不小于轴向钢阻尼器长度的1/80；在此极限允许位移下，轴向钢阻尼器能够完成至少30周次循环拉伸‑压缩塑性变形。
The invention relates to a high-ductility anti-fatigue core energy dissipation structure and an axial steel damper. The axial steel damper comprises a high-ductility anti-fatigue core energy dissipation structure and a peripheral restraining component. The core energy dissipation structure at least comprises a first steel plate and a second steel plate, and the second steel plate must only be adjacent to the first steel plate and is connected with the first steel plate in a welding mode. The first steel plate material has high yield strength and plastic deformation flow stress compared with the second steel plate material; the plastic deformation work hardening rate of the first steel plate material is not less than that of the second steel plate material; the fatigue life of the first steel plate material is not shorter than that of the second steel plate material. The ratio of the limit allowable displacement to the calculated yield displacement of the axial steel damper is not less than 7, and the limit allowable displacement is not less than 1/80 of the length of the axial steel damper; under the limit allowable displacement, the axial steel damper can complete at least 30 cycles of cyclic stretching-compression plastic deformation.
本发明涉及一种高延性抗疲劳芯部耗能结构及轴向钢阻尼器。轴向钢阻尼器包括高延性抗疲劳芯部耗能结构和外围约束构件；所述芯部耗能结构至少包含一块第一钢板和一块第二钢板，第二钢板必须而且只能与第一钢板相邻并通过焊接方式相连接。第一钢板材料相较于第二钢板材料具有高屈服强度和塑性变形流动应力；第一钢板材料的塑性变形加工硬化率不小于第二钢板材料的塑性变形加工硬化率；第一钢板材料的疲劳寿命不小于第二钢板材料的疲劳寿命。本发明轴向钢阻尼器的极限允许位移与计算屈服位移之比不小于7，且极限允许位移不小于轴向钢阻尼器长度的1/80；在此极限允许位移下，轴向钢阻尼器能够完成至少30周次循环拉伸‑压缩塑性变形。
High-ductility anti-fatigue core energy dissipation structure and axial steel damper
一种高延性抗疲劳芯部耗能结构及轴向钢阻尼器
YANG QI (author)
2024-09-06
Patent
Electronic Resource
Chinese
CORE ENERGY DISSIPATION STRUCTURE AND AXIAL STEEL DAMPER
| European Patent Office | 2023
| European Patent Office | 2024