For square foundations, sides dimensions from 130 to 210 cm at a height of 60 to 70 cm were adopted. Gradation in the size of square foundations for the columns of the Bezkrane buildings adopted 200 mm, which gives an increase in the area of the sole of the foundations adjacent to the variety of foundations in the range of 22-33%-
For large foundations, one height is 80 cm and dimensions: length from 210 to 290 cm and width from 190 to 270 cm. Gradation in size was adopted by 400 mm, while the area of the sole and the volume of concrete of foundations increase by about 35-40%. Further enlargement of gradation is inappropriate, since it leads to a significant revenge of materials. The weight of the foundation blocks is in the range from 1,400 to 7300 kg.
Blocks of basement walls from concrete of brand “100” can be made with voids and continuous. The catalog of typical industrial details for housing and cultural construction of Moscow contains 4 main and 4 additional sizes of blocks weighing up to 3 tons. Blocks have four thicknesses-38, 58, 78, 98 cm and one height-58 cm. For each thickness of the block, two lengths are installed – 238 cm (main block) and 38 cm (additional). Blocks can be used for the external and internal walls of the basements of residential and civilian buildings. To fill the vertical seam between the blocks on their end planes, there are grooves. 38 cm long blocks can be used as additional at a row height of 40 cm.
The design of wall blocks. Each block is equipped with two mounting loops. Loops are made of round steel with a diameter of 10-12 mm, brand st. 0.
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