The formula for wind load is F = A x P x Cd x Kz x Gh, where A is the projected area, P is wind pressure, Cd is the drag coefficient, Kz is the exposure coefficient, and Gh is the gust response factor. This formula takes a few more parameters into account for wind load. This formula is generally used to calculate wind load on antennas. In order to use an equation properly, you must first understand what each variable stands for and what its associated units are.   A, P, and Cd are the same variables used in the generic equation.  Kz is the exposure coefficient and it is calculated by taking into account the height from the ground to the midpoint of the object. The units of Kz are feet.  Gh is the gust response factor and it is calculated by taking into account the entire height of the object. The units of Gh are 1/feet or ft-1. The projected area of your object is dependent upon its shape and size. If the wind is hitting a flat wall, the projected area is easier to calculate than if the object is rounded. Projected area will be an approximation of the area that the wind comes in contact with. There is no one formula for calculating projected area, but you can estimate it with some basic calculations. Units for area are ft2.  For a flat wall, use the formula Area = length x width, measuring the length and width of the wall where the wind is hitting it. For a tube or column, you can also approximate the area using length and width. In this case, the width will be the diameter of the tube or column. Wind pressure is given by the equation P = 0.00256 x V2, where V is the speed of the wind in miles per hour (mph). The unit for wind pressure is pounds per square foot (psf).  For example, if the wind speed is 70 mph, the wind pressure is 0.00256 x 702 = 12.5 psf. An alternative to calculating wind pressure at a particular wind speed is to use the standard for various wind zones. For example, according to the Electronic Industries Association (EIA) most of the U.S. is in Zone A with 86.6 mph wind, but coastal areas...

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Write a summary of the previous text in Vietnamese:
Xác định công thức do Hiệp hội Doanh nghiệp Điện tử phát triển. Tìm hiểu các biến số trong công thức. Xác định diện tích hình chiếu. Tính áp lực gió. Xác định hệ số cản của vật đang xem xét. Tính hệ số tiếp xúc Kz. Tính hệ số giật của gió Gh. Tính tải trọng gió.