Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Energy dissipation and vibration reduction device capable of effectively restraining multi-degree-of-freedom vibration of flexible bridge
The invention relates to the technical field of bridge structure passive control, in particular to an energy dissipation and vibration reduction device capable of effectively restraining multi-degree-of-freedom vibration of a flexible bridge. A square cavity is formed in a main beam of a bridge, and the square cavity is horizontally and evenly divided into a plurality of cavities through middle partition plates which are arranged in the vertical direction and parallel to the length direction of the bridge. The middle partition plate has enough strength and rigidity and cannot deform under the action of horizontal force; each cavity is internally provided with a vibration reduction mechanism, and each vibration reduction mechanism comprises a mass block, a vertical spring, a horizontal spring, an energy exchange and dissipation assembly and a sliding block assembly. When the bridge is subjected to vibration in the horizontal direction or the vertical direction and the twisting direction, the mass block generates relative displacement to drive the energy exchange and dissipation assembly to act. The three-degree-of-freedom vibration damping device can restrain vibration of the bridge in the vertical direction, the horizontal direction and the torsion direction, required components are simple, installation is easy and convenient, economical efficiency is good, and the design and construction process is simple and convenient.
本发明涉及桥梁结构被动控制技术领域，特别涉及一种有效抑制柔性桥梁多自由度振动的耗能减振装置；桥梁的主梁内部有一方体形腔，通过竖直向的且平行于桥梁长度方向设置的中间隔板将方体形腔水平向平均分成多个腔室；中间隔板有足够的强度和刚度在受到水平向的力的作用下不会发生形变；每个腔室中均安装有减振机构，减振机构包括质量块、竖直向弹簧、水平向弹簧、能量交换与耗散组件、滑块组件；当桥梁受到水平向或竖直向同时还有扭转向的振动时，质量块产生相对位移驱动能量交换与耗散组件动作；本发明可以抑制桥梁竖直向、水平向、扭转三个自由度的振动，且本发明所需构件简单、安装简便、经济性好，其设计和施工过程简单、方便。
Energy dissipation and vibration reduction device capable of effectively restraining multi-degree-of-freedom vibration of flexible bridge
The invention relates to the technical field of bridge structure passive control, in particular to an energy dissipation and vibration reduction device capable of effectively restraining multi-degree-of-freedom vibration of a flexible bridge. A square cavity is formed in a main beam of a bridge, and the square cavity is horizontally and evenly divided into a plurality of cavities through middle partition plates which are arranged in the vertical direction and parallel to the length direction of the bridge. The middle partition plate has enough strength and rigidity and cannot deform under the action of horizontal force; each cavity is internally provided with a vibration reduction mechanism, and each vibration reduction mechanism comprises a mass block, a vertical spring, a horizontal spring, an energy exchange and dissipation assembly and a sliding block assembly. When the bridge is subjected to vibration in the horizontal direction or the vertical direction and the twisting direction, the mass block generates relative displacement to drive the energy exchange and dissipation assembly to act. The three-degree-of-freedom vibration damping device can restrain vibration of the bridge in the vertical direction, the horizontal direction and the torsion direction, required components are simple, installation is easy and convenient, economical efficiency is good, and the design and construction process is simple and convenient.
本发明涉及桥梁结构被动控制技术领域，特别涉及一种有效抑制柔性桥梁多自由度振动的耗能减振装置；桥梁的主梁内部有一方体形腔，通过竖直向的且平行于桥梁长度方向设置的中间隔板将方体形腔水平向平均分成多个腔室；中间隔板有足够的强度和刚度在受到水平向的力的作用下不会发生形变；每个腔室中均安装有减振机构，减振机构包括质量块、竖直向弹簧、水平向弹簧、能量交换与耗散组件、滑块组件；当桥梁受到水平向或竖直向同时还有扭转向的振动时，质量块产生相对位移驱动能量交换与耗散组件动作；本发明可以抑制桥梁竖直向、水平向、扭转三个自由度的振动，且本发明所需构件简单、安装简便、经济性好，其设计和施工过程简单、方便。
Energy dissipation and vibration reduction device capable of effectively restraining multi-degree-of-freedom vibration of flexible bridge
一种有效抑制柔性桥梁多自由度振动的耗能减振装置
CHEN JIANBING (Autor:in) / YANG JUNBAO (Autor:in) / XU LIANG (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
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