A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a structure for improving flutter stability of a flat box girder and a working method thereof, the structure comprises a box girder body and tuyeres located at the two ends of the box girder body in the transverse direction of a bridge, the tuyeres are connected with the box girder body through linear driving mechanisms, and the linear driving mechanisms are used for driving the tuyeres to move in the transverse direction of the bridge. The working method comprises the following steps: monitoring the actual wind speed of a bridge location in real time; if the actual wind speed is smaller than the set threshold value, the linear driving mechanism drives the tuyeres to contract inwards in the transverse direction of the bridge; and if the actual wind speed is larger than the set threshold value, the linear driving mechanism drives the tuyeres to stretch outwards in the transverse direction of the bridge. According to the structure for improving the flutter stability of the flat box girder and the working method of the structure, the problem that in the prior art, a flat box girder structure is difficult to achieve good balance between the flutter stability and the vortex vibration performance is solved, and the pneumatic configuration of the flat box girder is actively controlled; and development and application of the flat box girder technology are promoted.
本发明公开了一种用于提高扁平式箱梁颤振稳定性的结构及其工作方法，包括箱梁本体、沿桥梁横向位于箱梁本体两端的风嘴，风嘴与箱梁本体之间通过直线驱动机构相连，直线驱动机构用于驱动风嘴沿桥梁横向方向移动。其工作方法包括：实时监测桥梁所在地的实际风速；若实际风速小于设定阈值，由直线驱动机构驱动各风嘴沿桥梁横向向内收缩；若实际风速大于设定阈值，由直线驱动机构驱动各风嘴沿桥梁横向向外伸展。本发明的目的在于提供一种用于提高扁平式箱梁颤振稳定性的结构及其工作方法，以解决现有技术中扁平式箱梁结构难以在颤振稳定性和涡振性能之间取得较好平衡的问题，实现主动控制扁平式箱梁的气动构型，促进扁平式箱梁技术发展运用的目的。
The invention discloses a structure for improving flutter stability of a flat box girder and a working method thereof, the structure comprises a box girder body and tuyeres located at the two ends of the box girder body in the transverse direction of a bridge, the tuyeres are connected with the box girder body through linear driving mechanisms, and the linear driving mechanisms are used for driving the tuyeres to move in the transverse direction of the bridge. The working method comprises the following steps: monitoring the actual wind speed of a bridge location in real time; if the actual wind speed is smaller than the set threshold value, the linear driving mechanism drives the tuyeres to contract inwards in the transverse direction of the bridge; and if the actual wind speed is larger than the set threshold value, the linear driving mechanism drives the tuyeres to stretch outwards in the transverse direction of the bridge. According to the structure for improving the flutter stability of the flat box girder and the working method of the structure, the problem that in the prior art, a flat box girder structure is difficult to achieve good balance between the flutter stability and the vortex vibration performance is solved, and the pneumatic configuration of the flat box girder is actively controlled; and development and application of the flat box girder technology are promoted.
本发明公开了一种用于提高扁平式箱梁颤振稳定性的结构及其工作方法，包括箱梁本体、沿桥梁横向位于箱梁本体两端的风嘴，风嘴与箱梁本体之间通过直线驱动机构相连，直线驱动机构用于驱动风嘴沿桥梁横向方向移动。其工作方法包括：实时监测桥梁所在地的实际风速；若实际风速小于设定阈值，由直线驱动机构驱动各风嘴沿桥梁横向向内收缩；若实际风速大于设定阈值，由直线驱动机构驱动各风嘴沿桥梁横向向外伸展。本发明的目的在于提供一种用于提高扁平式箱梁颤振稳定性的结构及其工作方法，以解决现有技术中扁平式箱梁结构难以在颤振稳定性和涡振性能之间取得较好平衡的问题，实现主动控制扁平式箱梁的气动构型，促进扁平式箱梁技术发展运用的目的。
Structure for improving flutter stability of flat box girder and working method thereof
一种用于提高扁平式箱梁颤振稳定性的结构及其工作方法
2024-12-20
Patent
Electronic Resource
Chinese
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