Is it possible to run more than 4 wind load cases in a single model? I need to apply 1, 10, 100 year wind conditions, and Blast loading, in combination with acceleration loads. Thanks

Why you want to do something like this in a single model.
For 1 , 10, 100 years you have different velocity of the wind.

For blast No Comment.

Just look for this to see what is hapening if you do something stupid.
http://www.coade.com/ubbthreads/ubbthrea...=true#Post24059

Some information about blast you can find here:
http://www.civenv.unimelb.edu.au/ejse/Archives/Fulltext/2007/Special/200707.pdf
http://www.orbin.nl/presentations/OTC%202004%20paper%2016058.pdf
http://www.fabig.com/NR/rdonlyres/BDD27B...hnicalNote4.pdf

You can add a multiply factor at Load Case Editor instead of in the model itself.

For example, 1 year the wind speed is 20m/s. 10 year is 35m/s.
At the Load Case Editor, use 1.75 WIN 1, for the result of 10 year wind conditon.

Be careful with that "muliplier idea", wind loads increase as the square of the wind velocity.

So (35^2)/(20^2) = 3.06 for the multiplier.

Thanks for reminding Richard.

q= 0,5 * P * v^2

q = wind load
p = density of air
v = velocity

q1 = [ (v1^2)/(v2^2) ] q2

correct?

for uniform loads,how to load cases??

for uniform loads,how to build load cases in caesarII??