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Sway Effects
The program does not implement NBC 4.1.3.2(12) regarding sway effects, that is, the effect of vertical loading acting on the structure in its displaced configuration.
Rotational Deflection - Seismic
The program does not consider the effect of rotation, that is, the deflection that is caused by the fact that walls on upper floors are rotated due to the deflection on the floor below. This deflection is oultlined in CSA O86 A 11.7.1, Deflection in Multi-storey Buildings. We hope to implement this in a future version of the program
Sheds and Industrial Buildings - Wind
Sentence 4) of this NBC 4.1.3.5 for wind design exempts industrial buildings and sheds, however Shearwalls does not take this into account and outputs a storey drift table for all structures.