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The floor area ratio (FAR) is the relationship between the total amount of usable floor area that a building has, or has been permitted to have and the total area of the lot on which the building stands. The ratio is determined by dividing the total or gross floor area of the building by the gross area of the lot.
Fast prediction method of secondary structure sound in buildings caused by rail transit
The application discloses a kind of secondary structure sound in building caused by rail transit fast prediction method, comprising: S1, establishing prediction model;S2, determine reference condition and calculate C (f i );S3, calculate T h (f i ) under different room height, T w (f i ) under different window area ratio, T a (f i ) under different room area, T r (f i ) under different room length-width ratio, T i (f i ) under different total number of layers of building, respectively obtain the adjustment value table of T h (f i ), T w (f i ), T a (f i ), T r (f i ) and T l (f i );S4, the secondary structure sound of room to be predicted is predicted;S5, repeat S4, complete the secondary structure sound prediction of other rooms in the same building or any room in different buildings.The method is simple and easy to operate, high efficiency, improve the accuracy and applicability of prediction.
Owner:CHINA RAILWAY DESIGN GRP CO LTD