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Enlarged ASCE 7 Basic Wind Speed Map

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clandry

Structural
Apr 15, 2006
7
US
Does anyone know a source for a higher definition Basic Wind Speed Map for the ASCE 7. I have an electronic (.pdf) version of ASCE7-05, but when I zoom into the map, it gets really distorted. I am interested in the New Orleans, LA area.

Thanks in advance for your assistance.

TL
 
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The Louisiana building code should have the best maps. - but they might be based on ASCE-7 or, last I checked, with IBC 2000 (I think the LA code cites that version).

Is the information on Fig. 6-1a really that difficult to interpret? If you're right on the line, go with the higher value.
 
I'm not familar with that many Louisiana Building Codes, but a lot of the time the local building code will take the decision out of your hands and impose a design wind speed. Take a look at the city's website.
 
In Florida the state has been broken county by county for wind speed demarcation. They are very useful and I use them all the time.

Here is a link to the Florida county wind speed maps:


I also call the local building officials, for areas that I am not familiar with, and chat with them about their unique local requirements.

By the way, the ASCE wind speed map is an approximation that allows for interpolation between the lines. One must always call local building officials if they are not certain.




Regards,
Lutfi
 
Orleans Parish permits dept. requires a 130 mph wind speed for design.
 
The LSU website has the wind speed contours superimposed on a state map, so you can tell which zones specfic towns, parishes, highways etc. are.
 
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