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Re: Allowable Stress Design- Wind Loading

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The 1/3 allowable stress increase is taken into account in the loading
combinations in UBC and ASCE7.  The factors are changed depending
whether you're using LRFD or ASD, the the result is the same.  Be vary
careful, they changed from ANSI58, in that Dead+Wind allows no increase,
only when Dead, Wind, PLUS ONE OTHER TRANSIENT load is being
considered.  I have seen MANY designs by seemingly competent engineers
where this is misinterpreted.