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Self-resetting swing column based on SMA sliding friction damper
The invention discloses a self-resetting swing column based on SMA sliding friction dampers, the swing column is composed of an H-shaped steel column and the SMA sliding friction dampers, the column and a bottom plate are not welded, when the swing column encounters horizontal seismic oscillation, the bottom contact surface of the column is opened to realize a swing mechanism, and an upper connecting piece drives the SMA sliding friction dampers on the two sides to deform. According to the swing column, the shear resistance of a column foot is guaranteed through a shear plate, energy dissipation and self-resetting are achieved through SMA sliding friction dampers on the two sides of the column, deformation is concentrated on an SMA bolt weakening section, main components of the swing column keep elastic, and plastic failure is avoided. The column bottom and the bottom plate are not welded, when earthquake horizontal loads are borne, the swing column swings with the column flange as the rotation center, the column bottom is opened to produce a rotation angle, the upper connecting piece drives the SMA sliding friction dampers on the two sides to deform, the SMA bolts are stretched to be lengthened, residual deformation of the swing column can be effectively eliminated through superelasticity of the SMA bolts, and the swing column has the advantage of self-resetting.
本发明公开了一种基于SMA滑动摩擦阻尼器的自复位摇摆柱，该摇摆柱由H型钢柱和SMA滑动摩擦阻尼器组成，柱与底板无焊接，遭遇水平地震动时，柱底接触面张开实现摇摆机制，上连接件带动两侧SMA滑动摩擦阻尼器发生变形。摇摆柱通过剪力板保证柱脚的抗剪能力，通过柱两侧的SMA滑动摩擦阻尼器实现消能和自复位，变形集中于SMA螺栓削弱段，其主要部件均保持弹性，避免产生塑性破坏。本发明柱底与底板无焊接，当受到地震水平荷载时，摇摆柱以柱翼缘为转动中心发生摇摆，柱底张开产转角，上连接件带动两侧SMA滑动摩擦阻尼器发生变形，SMA螺栓受拉伸长，SMA螺栓的超弹性能有效消除摇摆柱的残余变形，使其具有自复位的优点。
Self-resetting swing column based on SMA sliding friction damper
The invention discloses a self-resetting swing column based on SMA sliding friction dampers, the swing column is composed of an H-shaped steel column and the SMA sliding friction dampers, the column and a bottom plate are not welded, when the swing column encounters horizontal seismic oscillation, the bottom contact surface of the column is opened to realize a swing mechanism, and an upper connecting piece drives the SMA sliding friction dampers on the two sides to deform. According to the swing column, the shear resistance of a column foot is guaranteed through a shear plate, energy dissipation and self-resetting are achieved through SMA sliding friction dampers on the two sides of the column, deformation is concentrated on an SMA bolt weakening section, main components of the swing column keep elastic, and plastic failure is avoided. The column bottom and the bottom plate are not welded, when earthquake horizontal loads are borne, the swing column swings with the column flange as the rotation center, the column bottom is opened to produce a rotation angle, the upper connecting piece drives the SMA sliding friction dampers on the two sides to deform, the SMA bolts are stretched to be lengthened, residual deformation of the swing column can be effectively eliminated through superelasticity of the SMA bolts, and the swing column has the advantage of self-resetting.
本发明公开了一种基于SMA滑动摩擦阻尼器的自复位摇摆柱，该摇摆柱由H型钢柱和SMA滑动摩擦阻尼器组成，柱与底板无焊接，遭遇水平地震动时，柱底接触面张开实现摇摆机制，上连接件带动两侧SMA滑动摩擦阻尼器发生变形。摇摆柱通过剪力板保证柱脚的抗剪能力，通过柱两侧的SMA滑动摩擦阻尼器实现消能和自复位，变形集中于SMA螺栓削弱段，其主要部件均保持弹性，避免产生塑性破坏。本发明柱底与底板无焊接，当受到地震水平荷载时，摇摆柱以柱翼缘为转动中心发生摇摆，柱底张开产转角，上连接件带动两侧SMA滑动摩擦阻尼器发生变形，SMA螺栓受拉伸长，SMA螺栓的超弹性能有效消除摇摆柱的残余变形，使其具有自复位的优点。
Self-resetting swing column based on SMA sliding friction damper
一种基于SMA滑动摩擦阻尼器的自复位摇摆柱
QIU CANXING (author) / LIU JIAWANG (author) / DU XIULI (author)
2023-05-09
Patent
Electronic Resource
Chinese