U形渡槽槽体结构风载体形系数的风洞试验研究

The wind tunnel test study on wind load shape coefficient of aqueduct body structure for U shape

本文对于U形渡槽槽体结构模型进行了风洞实验研究 ,得出了U形渡槽槽体结构的风压分布和风载体型系数。风洞试验结果表明U形渡槽槽体的风压分布和风载体形系数同槽体的高宽比和流场状况有关 ,在同一流场状况下槽体的风载体形系数随着槽体的高宽比变化。本文的试验结果为渡槽结构的抗风设计提供了参考依据。

In this paper, based on wind tunnel test study, the wind pressure distribution and wind load shape coefficient of the aqueduct body structure are obtained in smooth and turbulent flows. The result of the wind tunnel tests indicate that the wind pressure distribution and wind load shape coefficient of the U shape aqueduct body are affected not only by the depth width ratio of aqueduct body but also by the flowfield state, the variety of the wind load shape coefficient of the aqueduct body due to the depth width ratio of aqueduct body in same flowfield state. Furthermore, this paper also put sforward some suggestions for the design and construction of the wind aqueduct structure.