The Reinforced brick designs represent a laying strengthened by steel armature which stack on a solution in seams between bricks. Under the influence of compressing forces the armature is clamped in seams and thanks to forces of a friction and coupling with a solution works as a single whole with a laying.
Reinforcing can be cross-section, longitudinal and vertical.
Cross-section reinforcing carry out grids or cores. Steel cores perceive the cross-section stretching efforts arising at compression of a laying, interfere with brick destruction at a bend and a stretching and it increase bearing ability of the compressed element.
Columns, walls and piers reinforce cross-section mesh armature rectangular (fig. 54, or zigzag (fig. 54,6) forms (grids "чшучру"). Diameter of cores for cross-section reinforcing of a laying is supposed not less than 2,5 and no more 8мм. Diameter of armature in rectangular grids should be no more than 5, zigzag - no more 8мм. Application of armature of big diameters would cause inadmissible increase in a thickness of horizontal seams and decrease in durability of a laying.
To protect armaturnye grids from corrosion, from above and from below them protect a layer of a solution in the thickness not less 2мм. Therefore the general thickness of a seam in which the rectangular grid is laid, for example, from a wire in diameter 5мм, should be not less 14мм.
Prutki of grids weld or connect among themselves a knitting wire. The distance between prutkami in grids should be not less than 30 and no more 120мм. It is impossible to stack separate cores mutually perpendicularly in adjacent seams instead of grids. Grids should have such sizes that the ends prutkov acted on 2... 3мм for one of internal surfaces of a pier or a column. On these ends make sure that in a laying the armature is laid.
Armaturnye stack rectangular grids not less often than through five numbers of a laying, and at utolshchennom a brick - through four, zigzag - in pairs in two adjacent numbers so that the direction prutkov in them was mutually perpendicular. Longitudinal and vertical reinforcing of a laying ceramic and legkobetonnyh hollow stones, (penosilikatnyh stones) is applied by the facilitated layings in which a part of stones replace with easy concrete, zasypkami or teploizolirujushchimi layers.
Brick walls of the facilitated designs with horizontal brick diaphragms, and also walls kolodtsevoj layings are Most extended. Sometimes use also other types of the facilitated bricklayings, for example a laying with facing teploizoljatsionnymi plates, with the widened seams. Apply also layings on the warm solutions prepared on slag, perlitovom or other porous sand. At use of such solutions, especially at a laying with the widened longitudinal vertical seams, it is possible to reduce considerably a thickness of walls thanking their raised temperature constancy.
The Laying of walls of the facilitated design carry out with rasshivkoj seams of the front party. For protection against humidifying podokonnye sites of external walls, sites at a socle sawn-off shotgun spread in the top two numbers a continuous bricklaying.