八边形风机基础基底脱开面积的计算

The Calculation on the Expansion of the Base of the Octagon Air-blower

扩展基础形式的风机基础设计计算,控制性指标一般是极端荷载工况下基底脱开面积不超过基底面积的25%。对于底面为四边形及圆形的风机基础基底脱开面积的计算,目前规范有明确的计算方法。对于底面为八边形的风机基础基底脱开面积的计算,目前规范尚没有明确的计算方法,本文利用微积分对该项指标提出一种计算方法。

The calculation of the base of the air-blower is usually calculated in the case of the extreme load and the expansion of the base does not exceed 25% of the basal area. For the bottom for the fan base in the shape of rectangular and circular, there is a defined way of calculation. However, as to the octagonal base of air blower, the current standard method of calculation is still not clear. This paper has proposed a calculation of the index calculus method.