(57) Abstract:Usage: in ceilings and roofs of buildings and structures for various purposes. The inventive metal beam includes a belt, a flat perforated wall, cross-reference and longitudinal reinforcing ribs. The perforated wall is made on the zig-zag strips with the outer contour in the form of a parallelogram, is rigidly attached to the belts, and longitudinal reinforcing ribs made in the form of thin profiled sheets. This profiled sheets cover the perforated wall with two sides along the entire height of the beam and rigidly connected with the wall and with belts. 6 Il. The invention relates to the construction, in particular to metal beams, a wall of which is supported by the ribs, and can be used as the main structure in the ceilings and roofs of buildings and structures.Known metal beams of open profile, the wall of which is supported a vertical and horizontal ribs 
The disadvantages of this beam high intensity because of the increased wall thickness and a large number of reinforcing ribs gestorgui for the production of welding and cutting constructive details.The closest technical solution of the invention is a metal beam, consisting of belts, perforated walls and reinforcing ribs 
Its disadvantages are the increased intensity due to the large wall thickness (the ratio between the thickness of the belt tnand wall thickness t is equal to 16.5/11) and large energy consumption for cutting the original tee-zag line (metalwork Design: Spec. course. The textbook. manual for schools (Ed. by C. C. Berulava, I. I. Kochina, I. I. Krylov, A. C. Silvestrov. L. stroiizdat, 1990, S. 29 64, Fig. 2.28 2.32).The aim of the invention is to reduce the metal consumption and energy consumption per production.This objective is achieved in that the metal beam wall made of zigzag strips with the outer contour in the form of a parallelogram, is rigidly attached to the belts, and longitudinal reinforcing ribs made in the form of thin profiled sheets covering the perforated wall with two sides along the entire height of the beam and rigidly connected with its wall and belts.In Fig. 1 shows a beam in axonometric projection with belts of the Tauri, with the zigzag performtowin the data thin sheets; in Fig. 2 section A-A in Fig. 1; Fig. option 3 beams with belts of the pipe; Fig. 4 option beams with belts of channels; Fig. 5 a detail of the fastening of profiled sheets to the elements of the perforated wall and the belts of the Tauri rivets or spot welding, and Fig. 6 cutting steel strip standard sizes for elements of the perforated wall.Metal beam consists of zones 1, attached to the welding of elements of the perforated wall 2, a longitudinal reinforcing ribs 3 made in the form of thin profiled sheets, reference transverse ribs 4, 5 links, connecting the corrugated sheets 3 with the elements of the perforated wall 2 and zones 1 and made in the form of rivets, spot welding, etc.The beam is collected in the following order.Placed parallel to each other belts, between which is placed a flat perforated wall so that they form a triangular lattice and its beveled edges joined the zones. Then are welded to each other. It must be ensured strict focus bonded elements, i.e., the axis passing through the centers of gravity of cross-sections of the belts and the axis adjacent devout welded on the frame beams profiled sheet first with one hand and attach it to the frame elektroskripke, combined rivets or some other way. Percentual beam, it rightout, carry out the welding of the support ribs, the wall elements and zones on the opposite side, placed second profiled sheet and attach it above. In the case of use as a belt profiles Tauri section welding of elements of the wall and belts can be made with one hand with more welding of the root pass.Metal beam of this construction operates as follows.Under the action of vertical load frame beams starts to work as a farm with a triangular lattice, as the ratio of the beam height h to its span l is within 1/110 1/14. If the bearing runs will be performed over the points of intersection of the axial lines of the zones and wall elements, the appearance of the bending moments in the zones is only possible at the expense of display frame effect. When newslove transfer the vertical load of the upper belt will be extra work for local bending. Thus, the upper zone of the beam experience a longitudinally-transverse bending, and the lower belt tension with bending. The elements of the wall, forming a triangular lattice, feel, and tension and compression. RA is locoste impossible because of their loss of stability. Role relations that hold compressed elements from warping, perform hard to bend out of plane beams, corrugated sheets. When connecting stretched elements walls keep profiled sheets from moving out of plane beams and therefore can serve as an elastic retaining the supports for the flooring. Thus, profiled sheets in the composition of the beams are bending from its plane in multispan scheme with an estimated flight (h-height of the beam). Additionally profiled sheets can absorb the shearing forces, thereby unloading perforated wall beams. Welded seams, fastening elements wall with belts, should be sufficient for the perception of differences effort in adjacent panels.The proposed design of the metal beams with a span of 12 m with linear load 50 kN/m in comparison with the thin-walled beam, reinforced by transverse ribs, saves steel to 9% and a reduction of welding up to 50% of the same beam in comparison with the beam with a wavy wall gives the reduction of welding up to 50% savings in steel up to 1.5% Metal beam that includes a belt, a flat perforated wall, cross-reference and longitudinal reinforcing ribs gestede parallelogram, rigidly attached to the belts, and longitudinal reinforcing ribs made in the form of thin profiled sheets covering the perforated wall with two sides along the entire height of the beam and rigidly connected with the wall and with belts.
FIELD: building, particularly load-bearing structure of different buildings and building structures.
SUBSTANCE: beam comprises main frame composed of upper and lower belts and stiffening ribs arranged in-between, side walls of corrugated thin sheets connected with the frame so that corrugations of the sheets extend along longitudinal beam axis. Beam also has reinforcing ribs extending along longitudinal beam axis and arranged in side wall corrugations. The reinforcing ribs have flanges unconnected with stiffening ribs and belts along the full beam length or in beam zones characterized by maximal stresses.
EFFECT: increased load-bearing reliability, rigidity and stability in plane of flexure.
2 cl, 4 dwg
FIELD: technological processes.
SUBSTANCE: method for thermoprofile production involves strip feed to profile bending mill, sequential transit-wise element overcast by profile-bending mill rollers, perforation of slit row with deflanging in apron form, in checkered order on profile wall. Before feeding to profile-bending mill strip is unrolled from roll and shifted to form compensation loop. After perforation of slit row the profile surface is evened in leveling unit with further profile cutting at given length. Transfer line of cold shaping for thermoprofile production includes profile-bending mill with instrumental adjustments, device for perforation of checkered pattern of slits deflanged in apron form in wall of continuously moving profile. Unrolling and receiving units are positioned in series before profile-bending mill, and after slit perforation device a cutter is positioned. Slit perforation device features leveling unit.
EFFECT: extended functional capacities.
2 cl, 1 dwg
SUBSTANCE: invention pertains to construction, in particular to constructions of netted thermo profiles with C or U-shaped section, used as bearing frame elements of pre - fabricated buildings, roofs, fronts, balcony walls, where it is necessary to eliminate "cold joints" effect, and to the method of manufacture of netted thermo profiles. Set task is solved through consecutive vertical drawing of slots made in the central part of the blank symmetrical to the profiling axis from utter rows of the blank to the center in drawing cages forming a netted construction, and further in smoothing cages netted construction is displaced from the center to the edges by smoothing rollers with simultaneous leveling of the netted surface, whereat cells in internal rows of the netted construction acquire diamond shape, and lateral - triangle shape with rounded top, thereat excess of longitudinal draw of the metal on the bridges between the through cells are eliminated by knurling in the shape of buckles in the extension zone.
EFFECT: creation of netted thermo profile having smaller width of the initial blanks (strip) to save up material, retaining geometric characteristics and heat conduction of thermo profiles of identical cross section.
3 cl, 5 dwg
SUBSTANCE: shape comprises two shelves and a side wall between shelves with a groove in the central part. Shelves contain perpendicular bends directed towards each other. The groove forms ledges with height exceeding shape thickness. The shape is made as capable of coupling and joining of two shapes. Shelves are made of different width, with a difference equal to double thickness of the shape. Ledges are made of different height, with a difference equal to thickness of the shape. The large ledge is arranged at the side of the larger shelf. The composite element comprises a coupled pair of single-type shapes. Shapes are turned towards each other by inner surfaces and are matched to form a shape element of closed box-shaped cross section. The large shelf covers a smaller shelf coupled with it at the opposite sides of the element.
EFFECT: higher bearing capacity and reduced labour inputs in manufacturing.
8 cl, 4 dwg
SUBSTANCE: beam with a wall corrugated with an asymmetric profile comprises a compressed and an extended belt and a wall. The wall at least on some sections is traditionally or alternately corrugated with transverse corrugations. The profile of corrugations is asymmetric relative to the plane stretching via the corrugation top and normal to the longitudinal axis of the beam.
EFFECT: increased bearing capacity of a beam.
10 cl, 8 dwg
FIELD: machine building.
SUBSTANCE: invention is related to long-length hollow multisided profile. A long-length hollow multisided profile intended to be used in support structures of pipelines and cable conduits has at least three sides, and a bolt hole is provided on at least one side of the profile and a fixing hole is provided on at least one side of the profile. Two adjacent sides located in essence at a right angle to each other are fitted by bolt holes with the length of the latter in longitudinal profile direction being greater than that in transverse direction, the third profile side is fitted by a fixing hole that provides for passing of a bolt through the fixing hole to the bolt holes on both adjacent sides located in essence at a right angle to each other.
EFFECT: lower labour inputs for the connection of the profile to other components, reduced labour expenditures.
5 cl, 4 dwg
SUBSTANCE: biplastic beam consists of the upper and lower flanges, a vertical wavy wall, an adhesive composition and stiffening ribs, installed in bearing sections and places of the application of concentrated loads. The upper and lower flanges are made of carbon fibre channels, the walls of which form the upper and lower edges of the beam, at that the vertical wavy wall made of fibreglass plates is adjacent to inner horizontal surfaces of the upper and lower flanges by longitudinal edges, and glued to the inner vertical surfaces of the upper and lower flanges by ridges, at that the inner space of the channels is filled with the adhesive composition, and stiffening ribs are glued to the vertical wavy wall and to the upper and lower flanges.
EFFECT: increase of the load-bearing capacity of the beam, its torsional stiffness.
4 cl, 6 dwg
SUBSTANCE: beam with a continually retained wall comprises a compressed and an extended belts and a wall, besides, a flat wall in areas of action of transverse forces and/or torques of considerable intensity is reinforced by mostly transversely installed stiffening ribs in the form of preferably metal shapes adjoining each other with a gap providing for reliable connection of ribs to each other and to a wall, at the same time the shape and calibre of ribs may change along the length of the wall in accordance with variation of intensity of acting forces.
EFFECT: reduced material intensity of a beam and its increased bearing capacity.
9 cl, 5 dwg
SUBSTANCE: unit is made using additional elements of Z-shaped cross section, which are inserted one into the other under a run on a support and are connected to each other and to runs using bolts via oval holes in walls of elements. At the same time forces are transferred directly from an element to an element without loading of fastening elements in oval holes.
EFFECT: increased bearing capacity and reliability of a supporting unit.
SUBSTANCE: complete delivered building includes crossbars (or their parts) and stands (or their parts) of the framework, consisting of universal standard elements containing a variable and corrugated wall, or from the complex of universal standard elements one part of which, located on sections of intensive cross forces and/or torques, contains traditional or variable and corrugated wall, and another part of the elements located on the section with high intensity of bending moments and rather small intensity of cross forces and/or torques contains the flat wall. Stands and/or crossbars in the level, at least, of one of belts (most compressed) contain the rolling metal profile of the closed cross section, with filling of the cavity with the grout based on non-shrinking or expanding cement. Girders operate statically according to non-cutting design.
EFFECT: decrease of metal consumption of the building framework, reduction of nomenclature of bearing elements, improvement of technological effectiveness of production and installation of the building structures, building protection from progressing collapse at emergency impact.
12 cl, 11 dwg