A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Spring-flexible mesh tuning device for inhibiting vortex-induced vibration of bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a spring-flexible mesh tuning device for inhibiting the vortex-induced vibration of a bridge. A spring-flexible screen cloth tuning device suspended below a bridge with vortex vibration can generate pneumatic positive damping along with vertical vibration of a main beam, and vibration of the bridge is restrained; by designing parameters such as spring parameters and device quality, the system vibration frequency can be tuned to be close to the bridge vortex vibration frequency, so that resonance can be formed, the amplitude of the device can be amplified, the energy consumption is greatly increased, and the control efficiency is improved; the spring-flexible screen cloth tuning device can be arranged in multiple layers, so that the energy consumption and the efficiency are further improved; the device can realize quick modular disassembly and assembly, and is simple, convenient and quick; the device does not affect on-bridge traffic and under-bridge traffic. The method has the main advantages of simplicity, portability, quickness, economy, practicability and high efficiency.
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涡激振动的弹簧‑柔性网布调谐装置。悬挂在发生涡振的桥梁下方的弹簧‑柔性网布调谐装置随主梁上下振动会产生气动正阻尼，抑制桥梁振动；通过设计弹簧参数及装置的质量等参数，可以调谐系统振动频率与桥梁涡振频率接近，由此可以形成共振，放大装置的振幅，大幅增加能耗，提高控制效率；弹簧‑柔性网布调谐装置可以设置多层，进一步提高能耗和效率；本装置可以实现快速模块化拆装，简便快捷；装置既不影响桥上通车，也不影响桥下通航。本发明的主要优势：简单、轻便、快捷、经济、实用、高效。
Spring-flexible mesh tuning device for inhibiting vortex-induced vibration of bridge
The invention belongs to the technical field of bridge wind-induced vibration control, and provides a spring-flexible mesh tuning device for inhibiting the vortex-induced vibration of a bridge. A spring-flexible screen cloth tuning device suspended below a bridge with vortex vibration can generate pneumatic positive damping along with vertical vibration of a main beam, and vibration of the bridge is restrained; by designing parameters such as spring parameters and device quality, the system vibration frequency can be tuned to be close to the bridge vortex vibration frequency, so that resonance can be formed, the amplitude of the device can be amplified, the energy consumption is greatly increased, and the control efficiency is improved; the spring-flexible screen cloth tuning device can be arranged in multiple layers, so that the energy consumption and the efficiency are further improved; the device can realize quick modular disassembly and assembly, and is simple, convenient and quick; the device does not affect on-bridge traffic and under-bridge traffic. The method has the main advantages of simplicity, portability, quickness, economy, practicability and high efficiency.
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涡激振动的弹簧‑柔性网布调谐装置。悬挂在发生涡振的桥梁下方的弹簧‑柔性网布调谐装置随主梁上下振动会产生气动正阻尼，抑制桥梁振动；通过设计弹簧参数及装置的质量等参数，可以调谐系统振动频率与桥梁涡振频率接近，由此可以形成共振，放大装置的振幅，大幅增加能耗，提高控制效率；弹簧‑柔性网布调谐装置可以设置多层，进一步提高能耗和效率；本装置可以实现快速模块化拆装，简便快捷；装置既不影响桥上通车，也不影响桥下通航。本发明的主要优势：简单、轻便、快捷、经济、实用、高效。
Spring-flexible mesh tuning device for inhibiting vortex-induced vibration of bridge
一种抑制桥梁涡激振动的弹簧-柔性网布调谐装置
XU FUYOU (author) / WANG BO (author) / ZHANG ZHANBIAO (author) / WANG XU (author) / LI WENJIE (author)
2021-07-23
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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