PREFABRICATED CIRCLE ELEMENT I. FIELD OF TECHNIQUE THE INVENTION REFERS TO Prefabricated circle element also relates to civil engineering area, particularly to the general structures, walls for buildings, which feature is that, by filling some of their cavities with reinforced concrete, supporting pillars are created. (MKP 6 E 04 B 02/38) 2. TF. CHNtCAL PROBLEM Known classic method of designing reinforced concrete pillars by using frames and setting in concrete on site ("in situ") or bu wins ready-made prefabricated reinforced concrete pillars, enable no organic structural whole with the wall. where they are buih into. which can resuh in cracks on those spots of contact with the wall. that is the elements of'the wall and concrete pillar.
@. STATUS OF TECHNIQUE Numerous prefabricated circle elements of various dimensions as well as the types of material they are made of. are knows. All previous familiar prefabricated circle elements are stand-alone and self-supporting components, which disable constructional organic compteteness with the wall they are built into.
4. PRESENTATION OF THE ESSENCE OF THE INVENTION The essence of the invention relates to design of prefabricated circle element of bal<ed terra cotta with or without addition of ground terra cotta in the mixture, which is extruded. The elements are produced in variants being of internal hollow profile of 22x22, and for each hollow profile the external dimensions of the element's height vary so that three elements are produced in total being of outward dimensions i4x25x38 cm, 19x25x38 cm, 24x25x38 cm. Each individual element has two mutually integrated parts (Drawing !), of which one is a hollow profile which is filled with reinforced concrete and the other part presents a structural connection with the standard elements of the wall on the left and on the right or at an angle of 90 degrees in relation to the axial line of the hollow profile for reinforced concrete filling. Method of building in the prefabricated circle elements is obvious from the Drawing 2. Three dimension variants of the elements ensure combination with all types of standard elements being used hl higll e construction. Besides obtaining of high level of construction strength of a chimney, savings in construction costs are achieved.
5. SHORT DESCRIPTION OF DRAWINGS The drawing) presents the ground plan of individual prefabricated circle element and the drawing 2 displays the method of buiidillg into the wall.
(,. DESCRIPTION OF THE METHOD OF INVENTION REALIZATION As for the industrial aspect. the invention can be completed on usual extruders (presses) for production of perforated brick products by using Special tools foi-dimensioning purposes and profiting necessary holes. In preparation of mixture for extrusion it is possiblc to combine grindabk terra cotta as a supplement to increase mechanical hardness. After the extrusion, drying and baking. n prefabricated circ ! e element as a product is palletized, packed and labeled in compliance with common procedures in brick industry.
7. METHOD OF INVENTION APPLICATION Ready made product. a prefabricated circle element, is built in'in situ', directly into a wall in a position ascertained by a design, in such a manner that those parts determined to serve as a bond with a whole wall, make a compact connection with the wall, as shown in the drawing No. 2. Various height dimensions of individual prefabricated circle elements give a possibility to build the element into, the walks, which are made of bricks (blocks, elements) of sundry standard dimensions. In the course of building-in the circle clemcrns. necessary holes for anchoring of wire framework.
