Erection of solid columns of one-storey industrial buildings with bridge cranes made of high-strength sandy concrete and its economic efficiency

The use of high-strength sandy concrete (HSSC) is an alternative to crushed stone. Its profitable for those regions Russia in which stone imported building material. Thus, supplied the Republic Tatarstan (RT) from Ural, and local reserves sand are significant. Authors presented results studies determine economic efficiency solid columns’ erection one-story industrial buildings with bridge cranes according 1.424.1-5 series HSSC HSSC60 HSSC80 classes comparison heavy B20...B80 classes. Studies have shown that relation Kazan, B20...B40 classes, depending on size span, column spacing, floor height lifting capacity cranes, can reduce steel consumption by 43.2…71.5 %. At same time, total cost materials (steel concrete) when using 1.7 %...38.1 % lower than HSSC80. This due sharp rise Russian market third quarter 2002 continuing present (second 2021). When recalculated before indicated price increase, B20…B40 gives a decrease 1.9...34.5 obtained novel because scientific technical literature there no information about design these columns HSSC.