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Load Combinations for ASD 9th

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Hello,

The load combinations are referenced as ANSI 58.1 "Minimum Design Loads for
Buildings and Other Structures".  The oldest copy I have is the ASCE 7-95 that
gives the following combinations:

1. D
2. D+L+F+H+T+(Lr or S or R)
3. D+ (W or E)
4. D+L+(Lr or S or R) + (W or E)

What I am wondering about is how people handle the 4th combination with respect to
one story buildings?  It seems to me that it is highly unlikely that the roof of a
one story building will be fully loaded with its live load capacity at the same
time a hurricane comes through (I can see it being reroofed when a earthquake
hits).  How do others handle this?  Is there anything I am missing due to having a
newer ASCE manual?

Thanks,

Mike


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