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本文给出了在风压与热压共同作用下计算渗风量的新方法,提出了当量中和面上升高度的新概念和相应的计算公式,同时推导出了热压系数和建筑隔断系数计算公式。本方法与现行方法的区别在于能够具体考虑每一建筑物内部隔断时空气渗透的影响,解决了目前国内外渗风量计算中尚未解决的三个问题:①通过理论分析方法,并能较简单地计算建筑的热压系数;②较合理地进行风压与热压的叠加;③引入建筑隔断系数,解决了过去计算中未能考虑的建筑内部隔断对风压的影响而引起的计算上的不合理。
This paper presents a new method for calculating the amount of seepage under the combined action of wind pressure and hot pressure. It proposes a new concept of the height of equivalent neutralization surface and the corresponding calculation formula. At the same time, the calculation formulas of thermal pressure coefficient and building partition coefficient are deduced. . The difference between this method and the current method is that it can specifically consider the influence of air permeation during the partition of each building and solve the three problems that have not yet been solved in the calculation of the infiltration volume at home and abroad: 1 Through theoretical analysis methods, and can be relatively simple Calculate the thermal pressure coefficient of the building; 2 Perform a reasonable superposition of wind pressure and thermal pressure; 3 Introduce the building partition coefficient to solve the calculation failure caused by the influence of the internal partition of the building on the wind pressure that was not considered in the past calculations. reasonable.