Geometrical imperfection
When the member is from concrete material EN 1992-2 then geometrical imperfection is calculated in different way than standard EN 1992-1-1. Item αm is not considered and items αh is not limited by lower bound; see chapter 5.2(105). These changes have the influence on calculation of geometrical imperfection θi,y and θi,z.
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EN 1992-1-1 |
EN 1992-2 |
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θi = θ0∙αh∙αm 2/3 ≤ αh ≤ 1 |
θi = θ0∙αh αh ≤ 1 |
Implementation
The changes above affect the calculation of geometrical imperfection for column ( θi,y and θi,z). The results are visible for recalculated internal forces for columns; see the following figures for two columns from different material.
