Self-straining force (T) in load combinations
Self-straining force (T) in load combinations
(OP)
Hello,
In ASCE 7-05, the self-straining force or temperature load (symbol T) was included only in load combination no. 2 of the LRFD and ASD combinations. It was not added to the earthquake and wind load combinations.
In ASCE 7-10, 'T' is not directly included in any load combination. But according to Section 2.3.5 'where applicable, the structural effects of load T shall be considered in combination with other loads'.
Could anyone shed some light on this topic?
Should the temperature load be considered in all the load combinations?
Regards,
Su
In ASCE 7-05, the self-straining force or temperature load (symbol T) was included only in load combination no. 2 of the LRFD and ASD combinations. It was not added to the earthquake and wind load combinations.
In ASCE 7-10, 'T' is not directly included in any load combination. But according to Section 2.3.5 'where applicable, the structural effects of load T shall be considered in combination with other loads'.
Could anyone shed some light on this topic?
Should the temperature load be considered in all the load combinations?
Regards,
Su
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RE: Self-straining force (T) in load combinations
Included? Depends on the consideration.
In most cases I wouldn't include daily temperature loads during design earthquake events (ergo the load combinations meant to capture those). For some structures, I wouldn't worry about them at all.
But in some cases I might; I'm just making things up here, but perhaps temperature load generated by mechanical equipment, or for other self-straining (e.g. shrinkage) when significant.
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The name is a long story -- just call me Lo.
RE: Self-straining force (T) in load combinations