I just have to calculate an open hall with low roof loads and relatively high wind loads compared to it. In theory, a design of the bottom flange for buckling/toppling would have to be performed. Unfortunately, there is no combination of 1.0 * G +1.5 * W.

Answer

Additional combinations of reasonably stable actions can be considered in RSTAB / RFEM by using the Combination Expressions window (see Figure 1) and in RX-TIMBER with Window 1.4 (see Figure 2).

Keywords

favorable permanent actions favorable action

Reference

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