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Important Note – These are descriptions to changes implemented in version 10 and may not reflect current program behaviour.
The Sustained live loads due to… section of Loads Input view had an option for Controlled fluids that has been changed to Liquids in tanks to reflect most common and recent terminology. The corresponding symbol in design results has also been changed from Lf to Lt.
The ULS companion load factor for from CSA O86 14 Table 5.2.4.1 combinations 2 and 3 changed to 1.0 from 0.5 in O86-09 4.2.4.2, however in Sizer the sustained live load due to liquids in tanks was not changed, but it should have been. It is still 0.5.
These load combinations involve live, dead and snow loads.
Note that SLS factors did not change, and the 0.5 used for sustained live load serviceability factor is still correct.
Note that the same factor is listed in NBC 2015 Table 4.1.3.2-A.
If the critical load combination for uplift loading was not the same as that for downward bearing, the program was using 1.0 as the self-weight component of the uplift load combination rather than the correct 0.6. This has been corrected.
The bending moment analysis diagram was showing results for the critical load combination, rather than the load combination selected, at user-entered points of interest. This has been corrected.