A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heaving plate device for restraining flutter of bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a heaving plate device for restraining flutter of a bridge. A heaving plate immersed and suspended in water is suspended on a main beam of the bridge through a long rope. When the bridge vibrates drastically due to wind, the heaving plate in water can be driven to move up and down, the heaving plateand the bridge are prevented from vibrating due to strong additional mass and additional damping generated by the water, and finally flutter of the bridge is avoided or the flutter critical wind speed is increased drastically. A plurality of holes are formed in the heaving plate, and an opening and closing plate is arranged to further improve the bridge flutter control effect. The device has theadvantages of being simple, convenient to operate, good in control effect, light in weight, low in cost and high in practicability. Te heaving plate is arranged at the bottom of the main beam in a non-working state, so that the attractiveness of the bridge is not influenced, and navigation under the bridge is not influenced. When the heaving plate is in a working state, the heaving plate meets strong wind of sixteen or more levels in dozens of years, and navigation under the bridge is avoided.
本发明属于桥梁风致振动控制技术领域，提供了一种抑制桥梁颤振的垂荡板装置，是将浸没悬浮于水中的垂荡板通过长绳索悬吊在桥梁主梁上。桥梁发生风致大幅振动时会带动水中的垂荡板上下运动，水体随之产生的强大的附加质量及附加阻尼阻止垂荡板和桥梁振动，最终避免桥梁发生颤振或大幅提高颤振临界风速。在垂荡板上开设若干孔洞、设置开合板可进一步改善桥梁颤振控制效果。本发明的优势：装置简单、操作方便、控制效果好、质量轻、费用低、实用性强。垂荡板在非工作状态时，置于主梁梁底，既不影响桥梁美观，也不影响桥下通航。垂荡板在工作状态时，已是几十年一遇的十六级以上强风，桥下也不会通航。
Heaving plate device for restraining flutter of bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a heaving plate device for restraining flutter of a bridge. A heaving plate immersed and suspended in water is suspended on a main beam of the bridge through a long rope. When the bridge vibrates drastically due to wind, the heaving plate in water can be driven to move up and down, the heaving plateand the bridge are prevented from vibrating due to strong additional mass and additional damping generated by the water, and finally flutter of the bridge is avoided or the flutter critical wind speed is increased drastically. A plurality of holes are formed in the heaving plate, and an opening and closing plate is arranged to further improve the bridge flutter control effect. The device has theadvantages of being simple, convenient to operate, good in control effect, light in weight, low in cost and high in practicability. Te heaving plate is arranged at the bottom of the main beam in a non-working state, so that the attractiveness of the bridge is not influenced, and navigation under the bridge is not influenced. When the heaving plate is in a working state, the heaving plate meets strong wind of sixteen or more levels in dozens of years, and navigation under the bridge is avoided.
本发明属于桥梁风致振动控制技术领域，提供了一种抑制桥梁颤振的垂荡板装置，是将浸没悬浮于水中的垂荡板通过长绳索悬吊在桥梁主梁上。桥梁发生风致大幅振动时会带动水中的垂荡板上下运动，水体随之产生的强大的附加质量及附加阻尼阻止垂荡板和桥梁振动，最终避免桥梁发生颤振或大幅提高颤振临界风速。在垂荡板上开设若干孔洞、设置开合板可进一步改善桥梁颤振控制效果。本发明的优势：装置简单、操作方便、控制效果好、质量轻、费用低、实用性强。垂荡板在非工作状态时，置于主梁梁底，既不影响桥梁美观，也不影响桥下通航。垂荡板在工作状态时，已是几十年一遇的十六级以上强风，桥下也不会通航。
Heaving plate device for restraining flutter of bridge
一种抑制桥梁颤振的垂荡板装置
XU FUYOU (author) / MAO TAOTAO (author) / AN WANBO (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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