To find out the effect of central slotting on the aerodynamic stability of long-span suspension bridges with closed box girders,a series of wind tunnel tests and theoretical analysis were carried out by adjusting the width of central slotting.
针对近流线型的闭口钢箱梁这种大跨悬索桥常用的加劲梁断面形式,采用风洞试验与理论分析相结合的方法研究不同宽度中央开槽的颤振控制作用与颤振控制机理。
To find out the effect of central slotting on the aerodynamic stability of long-span bridges with closed box girders, a series of wind tunnel tests were carried out by adjusting the width of central slotting.
针对近流线型的闭口钢箱梁这种大跨径桥梁常用的加劲梁断面形式,采用风洞试验方法对不同宽度中央开槽的颤振控制作用进行了系统性的研究,试验结果表明,适当宽度的中央开槽可以使颤振临界风速获得较大程度的提高。
Flutter control effect and mechanism of central-slotting for long-span bridges;
大跨度桥梁中央开槽颤振控制效果和机理研究
Experiments of vortex control for central-slotting on long-span bridges;
大跨度桥梁中央开槽断面的涡振控制试验
Based on Xihoumen Bridge,which will be the longest steel box girder suspension bridge in the world,the flutter performance of central-slotted box girder section was studied through sectional model wind tunnel test,CFD numerical simulation and theoretical calculation.
以建成后将成为世界最大跨径的钢箱梁悬索桥——西堠门大桥为例,通过节段模型风洞试验、CFD数值模拟和理论计算对中央开槽箱梁断面的颤振稳定性能进行研究,分析了开槽宽度和箱梁内外侧局部气动外形的改变对中央开槽箱梁断面颤振稳定性能的影响。