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Long Term Effects in Strength Load Combinations

Long Term Effects in Strength Load Combinations

Long Term Effects in Strength Load Combinations

(OP)
Hello all,

AS1170.0 includes long term coefficient in one of strength load combinations as 1.2D+1.5*(FiLong)*Q.
What is the relations of long term effects with ultimate limit state? Should we use it for serviceability checks? But it is under the ultimate limit state section.

RE: Long Term Effects in Strength Load Combinations

I presume it covers materials that have lower capacity under sustained loads, and situations like creep buckling of slender concrete columns.

RE: Long Term Effects in Strength Load Combinations

Nodan,

The section defining that refers you to section 7.2.2 which talks about strength in terms of collapse, rupture or excessive deformation of a structure, so creep deflection under sustained loads as steveh49 suggested!

RE: Long Term Effects in Strength Load Combinations

(OP)
Thank you very much. So if there is no slender column there is no need to consider this combination right?

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