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The ratio of the total vertical reinforcement area in each of the polygon wall end zones along the critical wall height is at least 0.002 to the gross cross-section area of ​​the polygon wall arm, except for this height, this ratio is automatically selected not less than 0.001.

The conditions that the longitudinal reinforcement amount should not be less than 4ϕ14 in each of the polygon wall end regions and the minimum longitudinal reinforcement ratio in the polygon wall end regions is 0.03 (0.06 in the overlap zone) are automatically applied.

The diameter of the transverse reinforcement to be used in the end regions is not taken less than 8 mm. And the stirrup arms and / or horizontal spacing between crossties, a , greater than the diameter of hoops and crossties 25 of the solid is not selected.

7.6.2.2 as defined in the critical wall height of the wall end zones along, for winding zones of columns 7.3.4.1 from Eq. (7.1) "in the second condition of at least the determined transverse reinforcement 2/3 condition at user discretion.

In the vertical direction, the stirrup and / or tie-dye spacing is not taken larger than 150 mm and smaller than 50 mm. This gap should not be more than 6 times the longitudinal reinforcement diameter and 1/3 of the wall thickness.

The transverse reinforcements in the polygon wall end zone are continued in the foundation along a height not less than 300 mm and wall thickness.

The stirrups and / or trousers spacing in vertical direction in the wall end regions outside the critical wall height shall not be taken larger than the wall thickness and 200 mm.