Bent steel shape and composite building element on its basis

FIELD: construction.

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

 

The invention relates to the production of cold-roll formed sections made of galvanized sheet steel and can be used in construction for devices of different beam structures, including load-bearing.

Known bent metal profile C-shaped with a perpendicular bends at the ends of shelves facing each other, the side profile in the Central part is made with a hollow inside, forming ledges, in deepening performed corrugations, the height of the scarps and the corrugation depth exceeds the thickness of the profile (certificate of the Russian Federation No. 24483 U1, the priority date of 11.04.2002, date of publication, 10.08.2002, the authors Feofanov CENTURIES and others).

Known building element based on the specified curved metal profile, is made of two combined and stiffening profiles during construction element can be made of profiles, or rotated towards each other shelves and combined creases the shelves with the formation of a composite core construction of the box-shaped cross-section with longitudinal ribs or combined lateral sides with the formation of a composite core construction of I-beam section with longitudinal ribs (certificate of the Russian Federation No. 24483 U1, the priority date of 11.04.2002, date of publication, 10.08.2002, the authors Feofanov CENTURIES and others).

The disadvantages of the known an the log are increased labor costs in the manufacture of the construction element and the collaborative composite section, due to the difficulty of welding with thin sheet steel.

The closest in technical essence and the achieved result is a bent metal profile and the composite construction element on the basis of two roll-formed sections, one of which, taken as a prototype, made C-shaped with shelves of the same width and perpendicular to the limb at the ends of shelves facing each other, the side profile in the Central part is made with a hollow inside, forming ledges in excess of the thickness profile of the mating parts of the profile are made with the same radius value (certificate of the Russian Federation No. 33046 U1, the priority date of 30.06.2003, date of publication, 10.10.2003, author of Akhobadze became popular, prototype).

Known composite construction element on the basis of bent metal profile, is made of two bent C-shaped profile, turned to each other internal surfaces, one of which is arranged perpendicular to the limb shelves, the profiles are aligned and rigidly connected to each other with the formation of the core structure of box-section, with the inner surface of the corner portions of the lateral side and the inner surface of the shelves one profile combined respectively with the outer surface of the limb and the outer surface of the shelves the other is on profile the profiles are fixed by the hardware on the outside combined shelves and can be made with a thickness of 0.8-1.2 mm (certificate of the Russian Federation No. 33046 U1, the priority date of 30.06.2003, date of publication, 10.10.2003, author of Akhobadze became popular, prototype)

The disadvantages of the prototype are increased effort for the unification of bent profiles in the manufacture of a composite construction element box section and ensure the collaboration of the composite section due to the use of a large number of hardware and low bearing capacity due to the low profile thickness and attenuation section performing the holes for the hardware.

The objective of the invention is to increase the bearing capacity of bent metal profile and designs based on it and reduce labor costs in the manufacture of a composite construction element box section.

To solve the tasks bent steel profile open section contains two shelves perpendicular to the limb, facing each other, and the side wall between the shelves with a hollow in the Central part forming a shoulder height exceeding the thickness profile according to the invention made with the possibility of articulation, and pairing the two profiles, with shelves made of different width, with the difference equal to twice the thickness of the profile and the ledges done is have different heights, with the difference equal to the thickness of the profile, the greater the ledge is located on the higher shelves.

According to the invention bent steel profile is made thick, equal to 0.8-2 mm.

To solve the problem in a composite construction element on the basis of bent steel profile containing mating pair of bent profiles open section with two shelves and a side wall between them, turned to each other the internal surfaces and combined with the formation of the profile element of the closed box section, and the side wall of the profiles are made with a hollow in the Central part, forming ledges with a height exceeding the thickness profile according to the invention coupled pair is formed by the same type of profile, the shelves of which is provided perpendicular to the limb, facing each other and made of different width, with the difference equal to twice the thickness of the profile, and the ledges are made of different heights, with the difference equal to the thickness of the profile, the greater the ledge is located on the higher shelves, covering the outside mating with her lower shelf on the opposite sides of the element.

According to the invention associated profiles are fastened together by fasteners in places of contact of the limb shelves to the side wall.

According to the invention in-depth middle part of the side walls in p is re-coupled and can be fastened with fasteners.

According to the invention a composite construction element is docked along the length of forming his truncated profiles, and profiles on the one hand pair are offset along the length of the relatively profiles from the opposite side, and the joints on each side of the pair can be connected plates.

Figure 1 shows the bent steel profile, cross-section; figure 2 schematically shows a composite construction element box section on the basis of bent steel profile; figure 3 schematically shows a composite construction element of the I-beam on the basis of bent steel profile; figure 4 shows a scheme of the Assembly of the composite construction element with increasing length.

Bent steel profile open cross-section, depicted in figure 1, contains two shelves 1 and 2 of different widths, made perpendicular to the limb 3 facing each other, and the side wall 4 between the shelves with the recess 5 in the Central part, forming ledges 6 and 7 of different sizes exceeding the thickness of the profile. To enable coupling and pairing the two profiles shelves 1, 2 are made of different width, with the difference equal to twice the thickness of the profile and the ledges 6, 7 are made of different heights, with the difference equal to the thickness of the profile, the greater the ledge 7 is located on the higher shelves 2.

The composite construction element shown in figure 2, is made on the basis of bent steel profile with the geometry shown in figure 1, and contains a mating pair formed of similar bent profile open section contains two shelves 1 and 2 of different widths, provided perpendicular to the limb 3 facing each other, and the side wall 4 between the shelves with the recess 5 in the Central part, forming ledges 6 and 7 of different sizes exceeding the thickness of the profile. Profiles are rotated to each other by internal surfaces and combined with the formation of the profile element of the closed box section. For this mating shelf profiles made of different width, with the difference equal to twice the thickness of the profile and the ledges are made of different heights, with the difference equal to the thickness of the profile, the greater the ledge 7 is located on the higher shelves 2, covering the outside mating with her lower shelf on the opposite sides of the element.

For best collaboration and improving bearing capacity of conjugate profiles can be fastened by any known means, such as fasteners in places of contact of the limb shelves to the side wall (not shown conventionally).

According to the invention, as shown in figure 3, average depth cha is 5 the side walls in the pair can be coupled and fastened with fasteners to improve the bearing capacity due to the collaboration section.

According to the invention, as shown in figure 4, the composite construction element can be docked along the length of the forming its shorter profile to reduce labor costs during transportation and increasing the length. The profiles on the one hand pair are offset along the length of the relatively profiles from the opposite side. Increasing the length of the composite construction element in this case is less expensive, as the joining profiles are offset along the length of the use of overlays in the joints is optional.

The technical result is to reduce labor costs in the production of bent steel profile and join him in the composite construction element by reducing the amount of equipment and time consuming manufacturing process in connection with the use of the same profile, the increase in the carrying capacity building element through consolidation and collaboration of the walls of the box section in connection with the rational geometry of bent steel profile, as well as in capacity building element length at no extra cost and fixtures.

1. Bent steel profile, containing two shelves perpendicular to the limb, facing each other, and the side wall between the shelves with a hollow in the Central part, forming ledges h is the in excess of the thickness profile, characterized in that it is made with the possibility of articulation, and pairing the two profiles, with shelves made of different width, with the difference equal to twice the thickness of the profile and the ledges are made of different heights, with the difference equal to the thickness of the profile, the greater the ledge is located on the higher shelves.

2. Bent steel profile according to claim 1, characterized in that it is made with a thickness of 0.8-2 mm.

3. The composite construction element on the basis of bent steel profile containing mating pair of bent profiles open section with two shelves and a side wall between them, turned to each other the internal surfaces and combined with the formation of the profile element of the closed box section, and the side wall of the profiles are made with a hollow in the Central part, forming ledges with a height exceeding the thickness profile, wherein the coupled pair is formed by the same type of profile, the shelves of which is provided perpendicular to the limb, facing each other and made of different width, with the difference equal to twice the thickness of the profile and the ledges are made of different the height difference is equal to the thickness of the profile, the greater the ledge is located on the higher shelves, covering the outside mating with her lower shelf on the opposite with the Oron element.

4. The composite construction element according to claim 3, characterized in that the paired profiles bonded fasteners in places of contact of the limb shelves to the side wall.

5. The composite construction element according to claim 3, characterized in that the recessed middle part of the side walls in the pair are conjugate.

6. The composite construction element according to claim 5, characterized in that the paired middle part of the side walls are fastened together by fasteners.

7. The composite construction element according to claim 3, characterized in that it is docked along the length of forming his truncated profiles, and profiles on the one hand pair are offset along the length of the relatively profiles from the opposite side.

8. The composite construction element according to claim 7, characterized in that the joints on each side of a pair of connected plates.



 

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