Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Assembly type friction type energy dissipation connection beam column joint
The invention discloses an assembly type friction type energy dissipation connection beam column joint based on a sliding mechanism. A sliding energy dissipation plate is provided with a long circular groove-shaped bolt hole, the sliding phenomenon does not exist in the normal use stage, normal force transmission between spliced beam sections is guaranteed, and loads on beams are transmitted to a joint core area and a frame column; along with the increase of the load, the sliding energy consumption plate starts to slide, a web steel hinge rotates, friction energy consumption is generated, and the bearing capacity of a connecting joint is kept unchanged; the load is continuously increased, bolts are in extrusion contact with the bolt hole walls of connecting plates, the high-strength bolts are converted from a friction type to a pressure-bearing type, the joint bearing capacity is increased, and the connecting plates are subjected to extrusion deformation; and the load is continuously increased, and the sliding energy consumption plate is locally bent or yielded under tension. The energy dissipation capacity and the deformation capacity of the connecting joint are improved based on the sliding mechanism, damage is concentrated on a friction energy dissipation damper, plastic damage of the beams, the columns and the joint can be protected, prefabrication assembly and post-earthquake detachability can be achieved through bolt connection, and good engineering practicability is achieved.
本发明公开了一种基于滑移机制的装配式摩擦型耗能连接梁柱节点，滑移耗能板上设有长圆槽形螺栓孔，正常使用阶段无滑移现象，保证拼接梁段间的正常传力，将梁上荷载传递到节点核心区及框架柱；随着荷载增加，滑移耗能板开始滑移，腹板钢质铰发生转动，产生摩擦耗能，连接节点承载力保持不变；荷载继续增加，螺栓与连接板螺栓孔壁发生挤压接触，高强螺栓由摩擦型向承压型转变，节点承载力有所上升，连接板产生挤压变形；荷载继续增加，滑移耗能板将出现局部屈曲或受拉屈服。本发明基于滑移机制提高连接节点的耗能能力和变形能力，将损伤集中在摩擦耗能阻尼器，可保护梁、柱、节点的塑性损伤，采用螺栓连接有利于实现预制装配和震后可拆卸，具有良好的工程实用性。
Assembly type friction type energy dissipation connection beam column joint
The invention discloses an assembly type friction type energy dissipation connection beam column joint based on a sliding mechanism. A sliding energy dissipation plate is provided with a long circular groove-shaped bolt hole, the sliding phenomenon does not exist in the normal use stage, normal force transmission between spliced beam sections is guaranteed, and loads on beams are transmitted to a joint core area and a frame column; along with the increase of the load, the sliding energy consumption plate starts to slide, a web steel hinge rotates, friction energy consumption is generated, and the bearing capacity of a connecting joint is kept unchanged; the load is continuously increased, bolts are in extrusion contact with the bolt hole walls of connecting plates, the high-strength bolts are converted from a friction type to a pressure-bearing type, the joint bearing capacity is increased, and the connecting plates are subjected to extrusion deformation; and the load is continuously increased, and the sliding energy consumption plate is locally bent or yielded under tension. The energy dissipation capacity and the deformation capacity of the connecting joint are improved based on the sliding mechanism, damage is concentrated on a friction energy dissipation damper, plastic damage of the beams, the columns and the joint can be protected, prefabrication assembly and post-earthquake detachability can be achieved through bolt connection, and good engineering practicability is achieved.
本发明公开了一种基于滑移机制的装配式摩擦型耗能连接梁柱节点，滑移耗能板上设有长圆槽形螺栓孔，正常使用阶段无滑移现象，保证拼接梁段间的正常传力，将梁上荷载传递到节点核心区及框架柱；随着荷载增加，滑移耗能板开始滑移，腹板钢质铰发生转动，产生摩擦耗能，连接节点承载力保持不变；荷载继续增加，螺栓与连接板螺栓孔壁发生挤压接触，高强螺栓由摩擦型向承压型转变，节点承载力有所上升，连接板产生挤压变形；荷载继续增加，滑移耗能板将出现局部屈曲或受拉屈服。本发明基于滑移机制提高连接节点的耗能能力和变形能力，将损伤集中在摩擦耗能阻尼器，可保护梁、柱、节点的塑性损伤，采用螺栓连接有利于实现预制装配和震后可拆卸，具有良好的工程实用性。
Assembly type friction type energy dissipation connection beam column joint
一种装配式摩擦型耗能连接梁柱节点
LIU RUYUE (Autor:in) / LAI QIULAN (Autor:in) / YE JIANFENG (Autor:in) / YAN GUIYUN (Autor:in)
22.10.2021
Patent
Elektronische Ressource
Chinesisch
Rotational friction energy dissipation type self-resetting fabricated beam-column joint
| Europäisches Patentamt | 2021