Patent UA-83444-U (UA)
Title: Pre-fabricated reinforced-concrete construction train
Inventor: KOROBKIN VIKTOR STANISLAVOVYCH
IPC: E04B1/16
Filed: 2013-03-26
Abstract: A pre-fabricated construction column includes a built-in with concrete mortar three-dimensional spatial frame of type of reinforcement net arranged of connected to each other elements of reinforcement placed in the body of the column in long and in cross directions, respectively, along and across its side facets, and embedded items placed on the side surfaces of the body of the column, this consists of the lower basement section – the lower level, and one or more upper bearing sections – the upper level. Each of the upper bearing sections of the column is placed with axial symmetry with respect to the long axis of the lower basement section. The body of the lower basement section and each of the upper bearing sections are arranged with placement of the side facets at right angle with formation in cross section of a square or rectangular shape in layout. The long and cross elements of reinforcement in three-dimensional spatial frame of the column are placed with respect to each other in plane of the facets of the body of the column at right angle, with formation of square of rectangular cells. The long and cross horizontal elements of reinforcement of the three-dimensional spatial frame of the column are placed in parallel to the facets of the body of the column and at same distances from the outer surfaces of those, those long elements of reinforcement of three-dimensional spatial frame of the column are placed in parallel to each other and to the long axis of the body of the column, the cross horizontal elements of reinforcement of three-dimensional spatial frame of the column are placed normally with respect to the long elements of reinforcement and with separation between those not larger than the half of width of the smallest of the facets of the column body. The cross horizontal elements of reinforcement of the three-dimensional spatial frame of the column are arranged with length smaller compared to the width of the facet of the column. The column includes supplementary connection elements, the lower basement section and the upper bearing sections of the column include additional long and cross elements of reinforcement of the three-dimensional spatial frame, the lower basement section and each of the upper bearing sections of the column include spiral steel elements, in the upper ends, respectively, of the lower basement section and the upper bearing sections of the column guide cylindrical depressions are provided, those with the long axis coincide with the long axis of the basic long elements of reinforcement and are parallel to the long axis of the body of the column, at that the lower basement section of the column and the upper bearing sections of the column are arranged mostly with discrete discontinuities, the discrete discontinuity is arranged with value not smaller than the width of the smallest facet of the column, additional long elements of reinforcement of the lower basement section and the upper bearing sections of the column are placed in the basic reinforcement net, the spiral steel elements are placed with axial symmetry with respect to the guide cylindrical depressions, additional long elements of reinforcement of the lower basement section of the column are arranged with length smaller compared to the length of the body of the part of the column named, and larger compared to the length of the basic long elements of reinforcement, the basic long elements of reinforcement of the upper bearing sections of the column are arranged with length larger compared to the length of the body of the section of the column named, and as going out of the lower end of the sections of the column named by value not smaller than the width of the facet of the column, the guide cylindrical depressions are arranged in number equal to the number of the basic long elements of reinforcement of the upper bearing sections if the column that go out, the guide cylindrical depressions are arranged with depth not smaller compared to the length of the free ends of the basic long elements of reinforcement that go out, the guide cylindrical depressions are arranged with inner diameter larger compared to the outer diameter of the free ends of the basic long elements of reinforcement that go out, though smaller compared to the inner diameter of the spiral steel elements, the supplementary connecting elements are placed at locations of discrete discontinuities, the supplementary connecting elements are made of steel reinforcement in Z-like form in projection, with angles in the bent region larger than 150°, the end bent sections of each of the supplementary connecting elements are placed in one plane with the middle section, and in parallel to each other, the end bent sections of the supplementary connecting elements named are made with lengths smaller compared to the middle section. Additional cross elements of reinforcement of the three-dimensional spatial frame of the lower basement section of the column and the upper bearing sections of the column are connected to each other, respectively, with basic cross elements of reinforcement, with additional long elements of reinforcement and with the spiral steel elements. The lower ends of the basic and the lower and the upper ends of the additional long elements of reinforcement of the lower basement section of the column are placed at distance from its lower and upper ends, respectively, not smaller than the thickness of reinforcement. The lower and the upper ends of additional long elements of reinforcement of the upper bearing section of the column are placed at distance from the lower and the upper ends, respectively, not smaller than thickness of reinforcement. The cross elements of reinforcement of the three-dimensional spatial frame in each of those sections of the column are placed in such way that in the lower zones of those the number of the cross elements of reinforcement at unit of the body length of part of the column is larger compared to that in the middle and the upper zones.