A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hierarchical yield post-hardening metal sleeve damper
The invention relates to a graded yield post-hardening metal sleeve damper which comprises an inner pipe, an outer pipe, an inner friction plate, an outer friction plate, an energy dissipation metal plate and a limiting plate. A pipe body of the inner pipe extends into the outer pipe, grooves are formed in the opposite sides of the outer pipe, the inner friction plate, the outer friction plate, the energy dissipation metal plate and the limiting plate are sequentially placed in the grooves and connected through the high-strength bolts, gap grooves are formed in the upper side and the lower side of a side face groove of the outer pipe, and energy dissipation metal strips on the energy dissipation metal plate extend into the gap grooves. Under the condition of small earthquakes, part of the energy dissipation metal strips are stressed to yield to achieve energy dissipation, under the condition of large earthquakes, energy dissipation is achieved through sliding friction of the friction plates and yield of the other energy dissipation metal strips, and the effects of graded yield and hardening after yield are achieved. The energy-dissipating capacity is stable and good, and graded yield can be achieved under the condition of different earthquake magnitudes; the post-yielding hardening effect can be achieved, and an adverse failure mechanism caused by sudden reduction of the rigidity of the structure after yielding is prevented; the energy consumption module and the outer sleeve are separated, and installation and replacement are convenient.
本发明是一种分级屈服后硬化金属套管阻尼器，包括内管、外管、内外摩擦片、耗能金属板和限位板。内管管身伸入外管内，外管对侧开槽，槽中依次放置内摩擦片、外摩擦片、耗能金属板和限位板，并通过高强螺栓进行连接，外管侧面槽的上下侧设有间隙槽，耗能金属板上的耗能金属条伸入其中。在小震情况下通过部分耗能金属条受力屈服实现耗能，在大震情况下通过摩擦片滑动摩擦与其余耗能金属条屈服进行耗能，达到分级屈服与屈服后硬化的效果。本发明具有稳定良好的耗能能力，能够在不同震级情况下分级屈服；能够实现屈服后硬化效果，防止结构屈服后刚度骤减形成不利的失效机制；本发明实现耗能模块和外套管分离，安装更换方便。
Hierarchical yield post-hardening metal sleeve damper
The invention relates to a graded yield post-hardening metal sleeve damper which comprises an inner pipe, an outer pipe, an inner friction plate, an outer friction plate, an energy dissipation metal plate and a limiting plate. A pipe body of the inner pipe extends into the outer pipe, grooves are formed in the opposite sides of the outer pipe, the inner friction plate, the outer friction plate, the energy dissipation metal plate and the limiting plate are sequentially placed in the grooves and connected through the high-strength bolts, gap grooves are formed in the upper side and the lower side of a side face groove of the outer pipe, and energy dissipation metal strips on the energy dissipation metal plate extend into the gap grooves. Under the condition of small earthquakes, part of the energy dissipation metal strips are stressed to yield to achieve energy dissipation, under the condition of large earthquakes, energy dissipation is achieved through sliding friction of the friction plates and yield of the other energy dissipation metal strips, and the effects of graded yield and hardening after yield are achieved. The energy-dissipating capacity is stable and good, and graded yield can be achieved under the condition of different earthquake magnitudes; the post-yielding hardening effect can be achieved, and an adverse failure mechanism caused by sudden reduction of the rigidity of the structure after yielding is prevented; the energy consumption module and the outer sleeve are separated, and installation and replacement are convenient.
本发明是一种分级屈服后硬化金属套管阻尼器，包括内管、外管、内外摩擦片、耗能金属板和限位板。内管管身伸入外管内，外管对侧开槽，槽中依次放置内摩擦片、外摩擦片、耗能金属板和限位板，并通过高强螺栓进行连接，外管侧面槽的上下侧设有间隙槽，耗能金属板上的耗能金属条伸入其中。在小震情况下通过部分耗能金属条受力屈服实现耗能，在大震情况下通过摩擦片滑动摩擦与其余耗能金属条屈服进行耗能，达到分级屈服与屈服后硬化的效果。本发明具有稳定良好的耗能能力，能够在不同震级情况下分级屈服；能够实现屈服后硬化效果，防止结构屈服后刚度骤减形成不利的失效机制；本发明实现耗能模块和外套管分离，安装更换方便。
Hierarchical yield post-hardening metal sleeve damper
一种分级屈服后硬化金属套管阻尼器
ZHANG QIANYI (author) / YU DINGHAO (author) / LI GANG (author)
2024-05-28
Patent
Electronic Resource
Chinese
Mixed metal friction damper with multi-stage yield and post-yield hardening features
| European Patent Office | 2024
Mechanical performance and damping effect of multi‐stage yield metal sleeve damper
| Wiley | 2022