A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a novel steel bar rotating friction damper. The novel steel bar rotating friction damper comprises left side connecting steel plates (3), right side connecting steel plates (1), circular steel bars (2), friction gaskets (13) and torsion springs (15); damper bodies on the two sides are formed by connecting the connecting steel plates (1 and 3) and the friction gaskets (13) through high-strength bolts, and the torsion springs (15) are arranged on the peripheries of the gaskets; and the outer sides of the steel plates are fixedly connected with a structure through high-strength bolts, when an earthquake occurs, the bridge structure generates longitudinal bridge direction displacement relative to a bridge pier, therefore the connecting steel plates (1 and 3) generate rotary friction, and the circular steel bars (2) and the torsion springs (15) deform, so that an energy dissipation function is achieved. The novel steel bar rotating friction damper adopts the design that rotary friction dampers with different slip starting forces are connected with a steel bar damper in series, so that different earthquake working conditions are met; different slip starting forcescan be obtained by setting the pre-tightening force of the high-strength bolts; and the novel steel bar rotating friction damper has the advantages of being flexible in structure, easy to manufactureand install, low in maintenance cost and the like, and has high practical value and economic benefits.
本发明是新型钢条旋转摩擦阻尼器，包括左右侧连接钢板(1、3)、圆形钢条(2)、摩擦垫片(13)、扭转弹簧(15)。两侧阻尼器均由连接钢板(1、3)与摩擦垫片(13)通过高强螺栓连接组成，垫片外围设有扭转弹簧(15)。钢板外侧通过高强螺栓与结构固结。地震发生时，桥梁结构相对桥墩产生纵桥向位移，导致连接钢板(1、3)产生旋转摩擦，圆形钢条(2)、扭转弹簧(15)产生变形，从而实现能量耗散功能。本专利发明采用具有不同起滑力的旋转摩擦阻尼器串联钢条阻尼器的设计，以针对不同地震工况；可通过设置高强螺栓的预紧力获得不同的起滑力；具有构造灵活、易于制造和安装、维护成本低等优点，具有较高的实用价值和经济效益。
The invention discloses a novel steel bar rotating friction damper. The novel steel bar rotating friction damper comprises left side connecting steel plates (3), right side connecting steel plates (1), circular steel bars (2), friction gaskets (13) and torsion springs (15); damper bodies on the two sides are formed by connecting the connecting steel plates (1 and 3) and the friction gaskets (13) through high-strength bolts, and the torsion springs (15) are arranged on the peripheries of the gaskets; and the outer sides of the steel plates are fixedly connected with a structure through high-strength bolts, when an earthquake occurs, the bridge structure generates longitudinal bridge direction displacement relative to a bridge pier, therefore the connecting steel plates (1 and 3) generate rotary friction, and the circular steel bars (2) and the torsion springs (15) deform, so that an energy dissipation function is achieved. The novel steel bar rotating friction damper adopts the design that rotary friction dampers with different slip starting forces are connected with a steel bar damper in series, so that different earthquake working conditions are met; different slip starting forcescan be obtained by setting the pre-tightening force of the high-strength bolts; and the novel steel bar rotating friction damper has the advantages of being flexible in structure, easy to manufactureand install, low in maintenance cost and the like, and has high practical value and economic benefits.
本发明是新型钢条旋转摩擦阻尼器，包括左右侧连接钢板(1、3)、圆形钢条(2)、摩擦垫片(13)、扭转弹簧(15)。两侧阻尼器均由连接钢板(1、3)与摩擦垫片(13)通过高强螺栓连接组成，垫片外围设有扭转弹簧(15)。钢板外侧通过高强螺栓与结构固结。地震发生时，桥梁结构相对桥墩产生纵桥向位移，导致连接钢板(1、3)产生旋转摩擦，圆形钢条(2)、扭转弹簧(15)产生变形，从而实现能量耗散功能。本专利发明采用具有不同起滑力的旋转摩擦阻尼器串联钢条阻尼器的设计，以针对不同地震工况；可通过设置高强螺栓的预紧力获得不同的起滑力；具有构造灵活、易于制造和安装、维护成本低等优点，具有较高的实用价值和经济效益。
Novel steel bar rotating friction damper
新型钢条旋转摩擦阻尼器
2020-12-15
Patent
Electronic Resource
Chinese