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Flexible device for controlling vortex vibration of bridge
The invention belongs to the technical field of bridge wind resistance, and provides a flexible device for controlling vortex vibration of a bridge. The device comprises a main beam, a bearing, a reel, a soft cloth material and a balancing weight. A plurality of weather-resistant soft cloth materials which are safe, reliable, convenient to disassemble and assemble, adjustable in parameter and lowin cost can be arranged on a top plate lower edge, a web or a bottom plate of the bridge according to the vortex vibration control requirement of the bridge so as to prevent periodic vortex shedding around the section of the bridge under the action of wind load, and finally, vortex vibration of the bridge is controlled or inhibited. Compared with traditional pneumatic measures, the above pneumaticmeasure hasmain relative advantages that the size, the shape and the position are more convenient to adjust, the engineering cost is lower, and the control effect is better.
本发明属于桥梁抗风技术领域,提供了一类控制桥梁涡振的柔性装置,包括主梁、轴承、卷轴、软质布材和配重块。可以根据桥梁涡振控制需求,在桥梁顶板下缘、腹板或底板设置若干安全可靠、拆装方便、参数可调、费用低廉的耐候性软体布材,以阻止桥梁在风荷载作用下断面周围产生周期性漩涡脱落,最终实现控制或抑制桥梁涡振的发生。相对传统气动措施,该类气动措施主要相对优势包括其尺寸、形状、位置调整更为便利,工程费用更低,控制效果更好。
Flexible device for controlling vortex vibration of bridge
The invention belongs to the technical field of bridge wind resistance, and provides a flexible device for controlling vortex vibration of a bridge. The device comprises a main beam, a bearing, a reel, a soft cloth material and a balancing weight. A plurality of weather-resistant soft cloth materials which are safe, reliable, convenient to disassemble and assemble, adjustable in parameter and lowin cost can be arranged on a top plate lower edge, a web or a bottom plate of the bridge according to the vortex vibration control requirement of the bridge so as to prevent periodic vortex shedding around the section of the bridge under the action of wind load, and finally, vortex vibration of the bridge is controlled or inhibited. Compared with traditional pneumatic measures, the above pneumaticmeasure hasmain relative advantages that the size, the shape and the position are more convenient to adjust, the engineering cost is lower, and the control effect is better.
本发明属于桥梁抗风技术领域,提供了一类控制桥梁涡振的柔性装置,包括主梁、轴承、卷轴、软质布材和配重块。可以根据桥梁涡振控制需求,在桥梁顶板下缘、腹板或底板设置若干安全可靠、拆装方便、参数可调、费用低廉的耐候性软体布材,以阻止桥梁在风荷载作用下断面周围产生周期性漩涡脱落,最终实现控制或抑制桥梁涡振的发生。相对传统气动措施,该类气动措施主要相对优势包括其尺寸、形状、位置调整更为便利,工程费用更低,控制效果更好。
Flexible device for controlling vortex vibration of bridge
一类控制桥梁涡振的柔性装置
XU FUYOU (Autor:in) / SU BINGBING (Autor:in) / WANG BO (Autor:in) / WANG XU (Autor:in)
09.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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