## Minimum design wind load

## Minimum design wind load

(OP)

Greetings,

As per ASCE7-10 section28.4.4 , the minimum design wind load shall be 0.77 kN/m2 for wall and 0.38 KN/m2 for slab , my question, is the value of P=q *( GCpf - GCpi) shall calculate for each each wind exposed element ( leeward, windward , end zones , side pressure,…….etc) and then compare with the min. Values above and take the max.

For sure there are many values will be lesser than the above min. Values , because of this i feel there is another condition to use the above min. values, please see snap below and advise.

As per ASCE7-10 section28.4.4 , the minimum design wind load shall be 0.77 kN/m2 for wall and 0.38 KN/m2 for slab , my question, is the value of P=q *( GCpf - GCpi) shall calculate for each each wind exposed element ( leeward, windward , end zones , side pressure,…….etc) and then compare with the min. Values above and take the max.

For sure there are many values will be lesser than the above min. Values , because of this i feel there is another condition to use the above min. values, please see snap below and advise.

Thank you

## RE: Minimum design wind load

What other condition do you feel it's appropriate to use this? It sets a floor for the applied wind loading to ensure buildings aren't under-designed, since the formulas we use can under-predict loading at the low end.

## RE: Minimum design wind load

Thank you

## RE: Minimum design wind load

The minimum load provisions in chapter 28 are the same as those in 27. The application is explained in the commentary of chapter 27. They even give you a picture.