What is the meaning of (effective wind area)?

[Alaazaki]

Hi, please what is the meaning of (effective wind area) that mentioned in ASCE-7-05?

 

[spieng89]

From ASCE 7-05: "The area used to determine GCp. For component and cladding elements, the effective wind area in Figs. 6-11 through 6-17 and Fig. 6-19 is the span length multiplied by an effective width that need not be less than one-third the span length. For cladding fasteners, the effective wind area shall not be greater than the area that is tributary to an individual fastener."

 

[Antnyt23]

Components and Cladding is generally used as stated for a component say a window.... the window would be designed by means of components and cladding utilizing the window size as the effective area. 4'x8'=32ft2

It may be better if you define the component you are designing and we can better help you determine the associated effective area.

 

[Alaazaki]

Thank you guys, @Antnyt23 the component is side girt in factory repeated every 1.1meter horizontally

 

[ajh1]

The definition for "effective wind area" is found in Section 6.2. For a girt it is basically a minimum of the (span of girt) squared / 3. If the actual distance between girts is greater than span/3 then you can use span * spacing. Note, a continuous girt is figured the same as a simple span girt. You get no benefit for continuity.