Columns

Mnogorjadnaja bandaging system at a laying of columns is forbidden, because it does not provide solidity and demanded durability of columns. The single-row system of bandaging, with shift of alternating numbers ¹ / ₄ a brick, is reached by packing of three-chetvertok that is unprofitable for a laying of columns as at such way it is necessary to apply a considerable quantity trehchetvertok. Therefore columns spread on three-row system of bandaging if bandaging drawing can be admitted on conditions of furnish of a surface of a laying. A laying carry out from the whole brick with addition of halves. At this system of a laying coincidence of external vertical seams in three numbers of a laying on height is supposed. A tychkovyj number stack through three lozhkovyh. For a laying the insignificant quantity of not half-number brick, for example, columns section 2X2 a brick (fig. is required 52, tie up the whole bricks, and in columns section 1 ¹ / ₂ or 2X2 a brick (fig. 52, in each four numbers of a laying stack on two halves. If columns are adjoined by thin walls, they are connected let out of a column shtraboj or steel cores which put in columns.

a Fig. 52. Three-row system of bandaging at a laying of columns section :
And - 2 x 2 bricks, - 1 ¹ / ₂ a brick, in - 2 x 1 ¹ / ₂ a brick

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