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A platform for research: civil engineering, architecture and urbanism
Damping device and pretension adjusting method
The invention relates to the technical field of energy dissipation and shock absorption of engineering structures, in particular to a damping device and a pretension adjusting method.The damping device comprises a bearing mechanism which comprises an upper cover plate and a lower cover plate with the same size specification as the upper cover plate; the movable mechanism comprises a fixed plate arranged between the upper cover plate and the lower cover plate, and a friction plate also arranged between the upper cover plate and the lower cover plate; the fastening mechanism comprises a plurality of fastening bolts arranged on the upper cover plate and a plurality of nuts matched with the fastening bolts; according to the invention, different SMA wire bundle quantity ratios can be matched by controlling the pretightening force of the bolts and the sliding resistance, so that the maximum energy-dissipating capacity can be fully exerted on the basis of ensuring that the structural system has the self-resetting capacity, the sliding resistance can be adjusted, a hysteretic curve is not rectangular any more, and the self-resetting force of the structural system can be adjusted. The rigidity of the structure is effectively improved, and the single energy consumption form is avoided.
本发明涉及工程结构耗能减震技术领域，尤其是一种阻尼装置及预拉力调节方法，包括承载机构，包括上盖板，以及与所述上盖板尺寸规格完全相同的下盖板；活动机构，包括设置于所述上盖板与下盖板之间的固定板，以及同样设置于所述上盖板与下盖板之间的摩擦板；紧固机构，包括设置于所述上盖板上的多个紧固螺栓，以及适配于所述紧固螺栓的多个螺帽；调节机构，本发明能够通过控制螺栓的预紧力大小，控制滑动阻力的大小，来匹配不同的SMA丝束数量配比，从而实现在保证结构系统具备自复位能力的基础上，完全发挥最大耗能能力，使得本发明能够调节滑动阻力大小，滞回曲线也不再成矩形，有效提高结构的刚度，避免耗能形式单一。
Damping device and pretension adjusting method
The invention relates to the technical field of energy dissipation and shock absorption of engineering structures, in particular to a damping device and a pretension adjusting method.The damping device comprises a bearing mechanism which comprises an upper cover plate and a lower cover plate with the same size specification as the upper cover plate; the movable mechanism comprises a fixed plate arranged between the upper cover plate and the lower cover plate, and a friction plate also arranged between the upper cover plate and the lower cover plate; the fastening mechanism comprises a plurality of fastening bolts arranged on the upper cover plate and a plurality of nuts matched with the fastening bolts; according to the invention, different SMA wire bundle quantity ratios can be matched by controlling the pretightening force of the bolts and the sliding resistance, so that the maximum energy-dissipating capacity can be fully exerted on the basis of ensuring that the structural system has the self-resetting capacity, the sliding resistance can be adjusted, a hysteretic curve is not rectangular any more, and the self-resetting force of the structural system can be adjusted. The rigidity of the structure is effectively improved, and the single energy consumption form is avoided.
本发明涉及工程结构耗能减震技术领域，尤其是一种阻尼装置及预拉力调节方法，包括承载机构，包括上盖板，以及与所述上盖板尺寸规格完全相同的下盖板；活动机构，包括设置于所述上盖板与下盖板之间的固定板，以及同样设置于所述上盖板与下盖板之间的摩擦板；紧固机构，包括设置于所述上盖板上的多个紧固螺栓，以及适配于所述紧固螺栓的多个螺帽；调节机构，本发明能够通过控制螺栓的预紧力大小，控制滑动阻力的大小，来匹配不同的SMA丝束数量配比，从而实现在保证结构系统具备自复位能力的基础上，完全发挥最大耗能能力，使得本发明能够调节滑动阻力大小，滞回曲线也不再成矩形，有效提高结构的刚度，避免耗能形式单一。
Damping device and pretension adjusting method
一种阻尼装置及预拉力调节方法
QIANG XUHONG (author) / KANG UK (author) / CHEN YANSONG (author) / JIAN NANYI (author)
2024-04-02
Patent
Electronic Resource
Chinese
| European Patent Office | 2017
Field studies of bolt pretension
| Elsevier | 1993