长扁圆形烟囱体型系数研究

Research on Shape Coefficients of Long and Oblate Chimney

风荷载是高耸结构的控制因素,对高耸结构必须先确定体型系数,才能进行设计.而外形特殊的高耸结构的体型系数在规范中查不到,这时需要单独作特殊研究.通过风洞实验及流体力学原理两种方法确定了长扁园形烟囱的体型系数,结果基本一致,此结果填补了这种体型结构体型系数的空白.

Wind load is a crucial controlling factor for high-rise structure. So, after confirming its shape coefficients, we can begin to design it. However, for shape coefficients of high-rise structures with special shape, they can＇t be referred to the norm of shape coefficients. Therefore, it＇s necessary to study in other particular methods. This paper ascertained shape coefficients of long and oblate chimney in two ways, which are wind tunnel tests and hydrodynamics theory. We found that the results are consistent, which filled the gaps in the filed of shape coefficient.