Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C3/00—Structural elongated elements designed for load-supporting
  • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
  • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
  • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
  • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C3/00—Structural elongated elements designed for load-supporting
  • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
  • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
  • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
  • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
  • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C3/00—Structural elongated elements designed for load-supporting
  • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
  • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
  • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
  • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
  • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
  • E04C3/00—Structural elongated elements designed for load-supporting
  • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
  • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
  • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
  • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
  • E04C2003/0452—H- or I-shaped

Definitions

• the present invention relates to an H-beam, that is, to a beam comprising a central part or core, and two side- flanges, and which can be used for constructions, or restorations of buildings, etc.
• H-beams form solid, that is non-hollow monolithic elements, fabricated according to standardized sizes, and must be necessarily cut in certain cases, in order to adapt to the required span.
• the beam also has a disadvantageous ratio weight/load bearing capacity. This is seen as a drawback by the consumer, and moreover it complicates transport.
• the laying of the beam is particularly troublesome, because it is necessary to first introduce one end of the beam in a wall hole, and thereafter to move the whole beam body in the opposite direction, in order to introduce the other end of the beam inside the hole previously realized in the opposite wall.
• the conventional beam is moreover very bulky in certain specific applications in which civil buildings are to be restored, and it would be advisable to have available a kind of modular beam, and even a lighter beam, that is a beam with an advantageous ratio of weight to load bearing capacity.
• An object of the present invention is to realize an H- beam of a modular (sectional) kind, so as to eliminate size drawbacks.
• a further object is to optimize the ratio of weight to load bearing capacity.
• a third object of the present invention is to include the possibility to adapt the beam features, in the regions (flanges) which are more subject to bending stress, to particular situations or applications, in other words to the load, so as to increase the versatility of the beam.
• a fourth object of the present invention is to include the possibility of adapting the beam to a definite span, by assembling the same with the use of said modules.
• Fig. 1 is a perspective view of a single module of an H- beam of the present invention, in the assembled state;
• Fig. 2 is a perspective view of a half-structural which forms one component of the assembled module shown in Fig. 1;
• Fig. 3 is an exploded perspective view of the module shown in Fig. 1;
• Fig. 4 is a perspective view illustrating how several module components, which are connected to each other in a staggered way, give rise to an H-beam corresponding to a certain span (length).
• the same reference numbers are always used to indicate the same components of the module.
• the module 1 comprises two identical half-structurals, or half-parts of structural steel, denoted by 2a, 2b.
• Fig. 2 illustrates the configuration of the half-structural 2b. It can be seen that it comprises central stiffening beads 3, 3', 3" etc., and the same holds also for the half-structural 2a, as shown in Fig. 3.
• the half-structurals 2a, 2b are preferably obtained by means of a forming machine, even if the use of a moulding process should not be excluded. The forming machine performs the folding operations in order to obtain the half-flanges 4a, 4b - and 4c, 4d respectively -, of the half-structurals 2b and 2a.
• the half-flanges 4a, 4b, 4c and 4d are actually "hollow", that is, they enclose a gap 5 between two parts of the respective half-flange 4a, 4b, 4c and 4d, connected to each other by a bent portion 6.
• plates 7, 7' are respectively inserted inside the gaps 5.
• Plate 7 is introduced in the gaps 5 associated with the half-flanges 4a, 4c, whereas plate 7' is inserted inside the gaps 5 of the half- flanges 4b and 4d.
• the "filling" plates 7, 7' of the half-flanges are provided with a plurality of holes 8, 8' respectively, and the same is true for both half- structurals, which have holes 9 on their central part (or core) 10, and holes 9'on the flanges, these holes being provided on both parts of each half-flange 4a-4d, in aligned relationship, and also aligned to the holes 8, 8' of the plates 7, 7' (after assembling, as shown in Fig . 1 ) .
• the holes are used for the connection of all components 2a, 2b, 7, 7', which is obtained by riveting, and in the central part, they serve - in conjunction with the beads 3,3'- in order to avoid instability effects, like an enlargement of the central part and the concomitant detachment of the two parts 10, 10 which form the central part (core) of the beam. Rivets like those used in the aeronautical field are preferably introduced in the holes 8, 8', 9, 9', but the use of bolts or the like is obviously not excluded. The particular construction process allows to distribute the material in a more rational way, thereby reducing the amount of material employed.
• the lower flange formed by the half-flanges 4b, 4d which corresponds to the region more subject to bending stresses, may be strengthened by inserting a plate 7 ' having an increased thickness and/or an increased width. It will only be necessary to provide asymmetric half- structurals with "lower" half-flanges 4b, 4d having gaps 5 of increased thickness and/or width, with respect to the size of the gaps 5 of the "upper" half-flanges 4a,
• asymmetric structurals having flanges with different thicknesses and/or widths, to take into account - for the latter case - the greater bending stress of the lower flange 4b, 4d.
• Holes may be provided between the beads 3, 3', 3", etc. realized on the cores 10 of the half- structurals, said holes being adequately reinforced at their edges and being used as lightening holes or for providing a passage for a system (e.g. lighting system, water supply, etc.).
• the H-beam according to the present invention may be realized by moulding its components.
• a forming machine which, starting from a strip, is able to shape it (formation of the beads and the holes for the passage of the systems), and to cut it to the desired size.
• the advantage with respect to a foundry process is due to the fact that it is not necessary to modify the whole production plant in order to vary - for instance - the thicknesses of the half-flanges 4b, 4d if it is desired to insert a plate 7' with a larger thickness. It is obvious, therefore, that the structure of the H- beam according to the invention is also advantageous because it allows a greater "flexibility" of the production process as compared to the conventional processes.
• the span can be very easily adapted to various requirements, making use in particular applications of a cutting operation performed by grinding, due to the small thickness of the beam components;

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Rod-Shaped Construction Members (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)
• Variable-Direction Aerials And Aerial Arrays (AREA)
• Joining Of Building Structures In Genera (AREA)
• Aerials With Secondary Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=11406137

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (8)

• 1998
  • 1998-09-17 IT IT1998RM000598A patent/IT1302333B1/it active IP Right Grant
• 1999
  • 1999-09-02 AT AT99946427T patent/ATE239838T1/de not_active IP Right Cessation
  • 1999-09-02 EP EP99946427A patent/EP1114226B1/de not_active Expired - Lifetime
  • 1999-09-02 AU AU58833/99A patent/AU5883399A/en not_active Abandoned
  • 1999-09-02 WO PCT/IT1999/000279 patent/WO2000017463A1/en not_active Ceased
  • 1999-09-02 CA CA002343792A patent/CA2343792C/en not_active Expired - Fee Related
  • 1999-09-02 DE DE69907702T patent/DE69907702T2/de not_active Expired - Fee Related

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events