A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wind-resistant enclosure structure of long-span bridge
The invention relates to the field of barrier design, and in particular relates to a wind-resistant enclosure structure of a large-span bridge, which adopts a honeycomb wind barrier, and effectively dissipates wind energy through sudden expansion backflow and hole plug energy dissipation principles in fluid dynamics, so that the dynamic effect of wind load on a train is reduced. The current situation that an original wind barrier does not reduce the total influence of wind energy and only distributes the proportion of wind acting on the bridge or the train is changed. According to the wind-resistant enclosure structure, dissipation of wind load energy is truly achieved, the honeycomb-shaped structure is adopted, and the influence of the wind barrier on the aerodynamic performance of the bridge is reduced through almost 100% of the aperture ratio; meanwhile, hexagonal hole channels enable wind energy to be effectively dissipated through sudden expansion backflow and hole plug energy dissipation principles in fluid dynamics, and therefore the dynamic effect of wind load on the train is reduced.
本发明涉及屏障设计领域，具体涉及一种大跨度桥梁抗风围护结构，该抗风围护结构采用蜂巢体风屏障，通过流体动力学中的突扩回流和洞塞消能原理，使得风能得到有效耗散，从而降低风荷载对列车的动力效应。本发明改变原有风屏障不降低风能总影响，仅对风力作用在桥上或列车上的比例进行分配的现状。真正实现对风荷载能量的消散，采用蜂巢状结构，通过几乎100%的开孔率，降低风屏障对桥梁气动性能的影响；同时，六边形孔道通过流体动力学中的突扩回流和洞塞消能原理，使得风能得到有效耗散，从而降低风荷载对列车的动力效应。
Wind-resistant enclosure structure of long-span bridge
The invention relates to the field of barrier design, and in particular relates to a wind-resistant enclosure structure of a large-span bridge, which adopts a honeycomb wind barrier, and effectively dissipates wind energy through sudden expansion backflow and hole plug energy dissipation principles in fluid dynamics, so that the dynamic effect of wind load on a train is reduced. The current situation that an original wind barrier does not reduce the total influence of wind energy and only distributes the proportion of wind acting on the bridge or the train is changed. According to the wind-resistant enclosure structure, dissipation of wind load energy is truly achieved, the honeycomb-shaped structure is adopted, and the influence of the wind barrier on the aerodynamic performance of the bridge is reduced through almost 100% of the aperture ratio; meanwhile, hexagonal hole channels enable wind energy to be effectively dissipated through sudden expansion backflow and hole plug energy dissipation principles in fluid dynamics, and therefore the dynamic effect of wind load on the train is reduced.
本发明涉及屏障设计领域，具体涉及一种大跨度桥梁抗风围护结构，该抗风围护结构采用蜂巢体风屏障，通过流体动力学中的突扩回流和洞塞消能原理，使得风能得到有效耗散，从而降低风荷载对列车的动力效应。本发明改变原有风屏障不降低风能总影响，仅对风力作用在桥上或列车上的比例进行分配的现状。真正实现对风荷载能量的消散，采用蜂巢状结构，通过几乎100%的开孔率，降低风屏障对桥梁气动性能的影响；同时，六边形孔道通过流体动力学中的突扩回流和洞塞消能原理，使得风能得到有效耗散，从而降低风荷载对列车的动力效应。
Wind-resistant enclosure structure of long-span bridge
一种大跨度桥梁抗风围护结构
CHEN TIE (author) / HU XIAOJUAN (author)
2021-10-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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