Vertical 1a and 1b irregularity checks are made automatically and detailed results are given in the Earthquake Regulation report.

Soft Story Irregularity, which is defined by dividing stifness in any i'th storey by the stifness of the upper story for any of the two earthquake directions perpendicular to each other, excluding basements. Where the coefficient is smaller than 0.7.

Extreme Soft Story Irregularity, which is defined by dividing stifness in any i'th storey by the stifness of the upper story for any of the two earthquake directions perpendicular to each other, excluding basements. Where the coefficient is smaller than 0.6.

In the Irregularity Report, Soft Story Irregularities are checked and necessary conditions are applied.

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ASCE Weight (Mass) Irregularity

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