Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Split type box girder bridge vortex-induced vibration turbulent flow device
The invention provides a split box girder bridge vortex-induced vibration turbulent flow device which comprises a split box girder and turbulent flow units, and an array composed of a plurality of turbulent flow units is arranged at the slotting position of the split box girder. Each turbulent flow unit comprises a lattice, a vibration exciter and a plurality of elastic pieces; the turbulent flow units are arranged at the slotting positions of the split box girders, the spanwise vortex structures of vortexes at the slotting positions of the split box girders are destroyed, the vortex vibration damage of a large-span split box girder bridge can be effectively eliminated, and the vortex vibration damage of the large-span split box girder bridge can be effectively eliminated. The air flow can be preliminarily disturbed through an elastic piece in the turbulent flow unit when passing through the split box girder, the vibration exciter can be remotely controlled, the air flow erupted by the vibration exciter can be actively adjusted, an additional air compression power device does not need to be arranged, the situation that the aerodynamic characteristics of the bridge are changed by the power device and an air blowing and sucking device is avoided, and the service life of the bridge is prolonged. The energy consumption is reduced, and meanwhile, the durability problem caused by box girder trepanning is completely eradicated.
本发明提供了一种分体式箱梁桥梁涡激振动的扰流装置，包括分体箱梁、扰流单元，分体箱梁的开槽处设有由若干扰流单元组成的阵列；扰流单元包含框格、激振器和若干弹性件；相邻两个扰流单元通过框格配合组成阵列，本发明扰流单元设置在分体箱梁的开槽处，破坏了分体箱梁开槽处旋涡的展向涡结构，能有效消除大跨度分体箱梁桥梁的涡振病害，且本发明不仅可以通过扰流单元中的弹性件在风流经分体箱梁时进行初步扰乱，本发明还可以远程操控激振器，主动调整激振器喷发的气流，无需配备额外的气体压缩动力装置，避免了动力装置和吹吸气装置对桥梁气动特性的改变，降低了能量消耗，同时杜绝了箱梁开孔引起的耐久性问题。
Split type box girder bridge vortex-induced vibration turbulent flow device
The invention provides a split box girder bridge vortex-induced vibration turbulent flow device which comprises a split box girder and turbulent flow units, and an array composed of a plurality of turbulent flow units is arranged at the slotting position of the split box girder. Each turbulent flow unit comprises a lattice, a vibration exciter and a plurality of elastic pieces; the turbulent flow units are arranged at the slotting positions of the split box girders, the spanwise vortex structures of vortexes at the slotting positions of the split box girders are destroyed, the vortex vibration damage of a large-span split box girder bridge can be effectively eliminated, and the vortex vibration damage of the large-span split box girder bridge can be effectively eliminated. The air flow can be preliminarily disturbed through an elastic piece in the turbulent flow unit when passing through the split box girder, the vibration exciter can be remotely controlled, the air flow erupted by the vibration exciter can be actively adjusted, an additional air compression power device does not need to be arranged, the situation that the aerodynamic characteristics of the bridge are changed by the power device and an air blowing and sucking device is avoided, and the service life of the bridge is prolonged. The energy consumption is reduced, and meanwhile, the durability problem caused by box girder trepanning is completely eradicated.
本发明提供了一种分体式箱梁桥梁涡激振动的扰流装置，包括分体箱梁、扰流单元，分体箱梁的开槽处设有由若干扰流单元组成的阵列；扰流单元包含框格、激振器和若干弹性件；相邻两个扰流单元通过框格配合组成阵列，本发明扰流单元设置在分体箱梁的开槽处，破坏了分体箱梁开槽处旋涡的展向涡结构，能有效消除大跨度分体箱梁桥梁的涡振病害，且本发明不仅可以通过扰流单元中的弹性件在风流经分体箱梁时进行初步扰乱，本发明还可以远程操控激振器，主动调整激振器喷发的气流，无需配备额外的气体压缩动力装置，避免了动力装置和吹吸气装置对桥梁气动特性的改变，降低了能量消耗，同时杜绝了箱梁开孔引起的耐久性问题。
Split type box girder bridge vortex-induced vibration turbulent flow device
一种分体式箱梁桥梁涡激振动的扰流装置
WENG XIANGYING (Autor:in) / ZHOU JIZHONG (Autor:in) / LEI HUJUN (Autor:in) / ZHENG YONGQIAN (Autor:in) / ZHENG LIANQIONG (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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