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
  • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B7/00—Roofs; Roof construction with regard to insulation
  • E04B7/08—Vaulted roofs
  • E04B7/10—Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B7/00—Roofs; Roof construction with regard to insulation
  • E04B7/14—Suspended roofs
• • 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
  • E04C2003/0443—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
  • E04C2003/0473—U- or C-shaped
• • 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
  • E04C2003/0482—Z- or S-shaped
• • 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
  • E04C2003/0486—Truss like structures composed of separate truss elements
  • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

• the present invention relates to a main truss beam configuration, and additional configurations in alternative truss beam embodiments.
• the present invention relates to the difficulties inherent in the lattice beam production process, depending on the prior knowledge of the spans and load requests to which the beams will be subjected.
• the present invention also relates to the difficulties inherent in installing and assembling lattice beams.
• Truss beams are therefore effectively used only in specific situations where there is no doubt about their benefits compared to solid beams.
• the present invention provides a novel and inventive solution to the limitations in the state of the art as it contemplates a new lattice beam connection configuration and fabrication process which allows for the easy industrialization, storage and assembly of component parts. in different configurations and shapes, without limitations of height and spans and loads, making their use more attractive, allowing substantial reduction of costs and lead times, ensuring the conformity of the finished beam with the design, and allowing the easy replacement of parts and beam parts more easily, faster and at lower costs.
• the parts that make up the beam resulting from the present invention have the same structural integrity and load capacity currently verified for existing lattice beams, with the obvious advantage of being produced in series and stored prior to their use without defined design for the application of the beams. same.
• Figures 2 to 9 Description of the Figures The present invention is illustrated by Figures 2 to 9 in which: Figure 1 and 1A represent prior art representations; Figures 2, 2A, 2B, 3 and 3A comprise representations of one embodiment of the present invention; Figures 4, 4A, 4B, 5, 5A and 5B comprise representations of a second embodiment of the present invention comprising a "Z"flange; Figures 6, 6A and 6B comprise representations of the "Z"banzo; Figure 7 comprises a representation of one embodiment of the present invention; Figures 8 and 8A comprise a representation of another embodiment of the present invention; and Figure 9 represents another embodiment of the present invention.
• Figures 1 and 1A represent prior art representations showing a banzo (10 and diagonals (2), and the detail technique is shown in detail IA, comprising fixing the diagonals through two angularly arranged holes ( ⁇ ) in the banzo, referred to in Figure 1. further showing step (P) between the nodes:
• Figures 2, 2A, 2B, 3 and 3A comprise representations of one embodiment of the present invention, and
• Figure 2 illustrates the use of two diagonals in parallel with horizontally fixed holes. in relation to the flange, showing step (P),
• Figure 2A details the sets of diagonals (12) fixed knots to the flange (ll), at fixing points or holes (14);
• Figure 2B details section xx, showing the fastening elements in relation to the flanges (11) and diagonals (12);
• Figures 3 and 3A represent schematically the advantages of the present invention over the possibility of different heights and spans using the same drilling arrangements and distance between holes in the flange.
• Figures 4, 4 ⁇ , 4B, 5, 5A and 5B comprise representations of a second embodiment of the present invention comprising a "Z" banzo, while Figures 4, 4A, 4B show a first embodiment of the "Z” banzo. ; and Figures 5, 5A and 5B show a second embodiment of the "Z" flange.
• Figures 4, 4A, 4B show a metal structure with upper and lower flanges (21) and diagonals (26) with fixing holes (25), said flange having upper (22) and lower flaps (23), and an intermediate body. (24), as shown in Figure 4A, and in Figure 4B, the fixing of the flange (21) and diagonals (26) by means of fastening element (25A) is shown.
• Figures 5, 5A and 5B show a second embodiment of the "Z" flange, in a metal frame with upper and lower flanges (31) and diagonals (36) with fixing holes (35), said flange having upper flaps (32). ) and lower part (33), and a two-part partitioned body (34 and 34a) and as shown in Figure 5A, the figure showing the fixing of the flange (31) and diagonals (36) by means of a fastener (35A) ).
• Figures 6, 6A and 6B comprise flange representations in ⁇ ⁇ ", indicating Figure 6 the possibility, once rotated and inverted to be said flange engagable in itself, thus enabling its storage and further use enhanced, e.g. extension, connecting or structural reinforcement element (Figures 6A and 6B);
• Figure 7 comprises a representation of one embodiment of the present invention.
• Figures 8 and 8A comprise a representation of another embodiment of the present invention, with diagonally fastening holes in the flange arranged vertically with respect to said flange, Figure 8 further comprising applying an additional structural element between the diagonals;
• Figure 9 represents another embodiment of the present invention, with diagonally fixed holes in the flange arranged vertically with respect to said flange, with only two holes per knot.
• the traditional lattice beams are basically made up of two main parts: the flanges (1), long length longitudinal pieces, and the diagonals (2), shortest transverse pieces, usually positioned between two flanges, with their ends each attached to each other.
• a flange by conventional bolts and nuts, and may further comprise one or more plumbs vertically positioned between the flanges.
• the constructive shape of the beams is determined by the length of the diagonals (2) and pitch (P - distance between nodes or connection points between the flange and diagonal) required to obtain the desired span, height and load capacity.
• Detailing therefore consists of defining the sections of the pieces, flanges and diagonals, the pitch (or distance) between the nodes and the shape of the joints, which in turn define the diagonal length and the height of the beam.
• an angle ( ⁇ ) shall be defined in relation to the flange (1). and, for a beam height, the step (P) for arranging said fixing holes.
• the largest and most laborious main part namely the banzo (11), can be prefabricated and consequently stored for later use; and the diagonals (12), simpler and quicker and easier to produce, can also be prefabricated and stocked, with only one spindle (14) at each end, and in varying lengths.
• the present invention comprises lattice beams which can be constructed in different ways, the configuration following the preferred mode, not restrictive of the concept claimed for protection.
• two diagonals (12) are used in parallel in each section of the beam, each capable of meeting half of the intended request, fixed to the flange by one. bolt at each end, allowing height to be variable, making the truss competent to meet different demands.
• a banzo (11) may be manufactured and stored for use with any truss height, which height will be defined by the need of the verified demand.
• Flanges (11) and diagonals (12) can be calculated taking into account material thickness constraints, maximizing the capacity of the joints and intervening parts with one axis.
• the present invention therefore provides a beam comprising a longitudinal main part, or flange (21, 31), with characteristic "Z" profile as Figures 4 to 5B, comprising holes (25, 35) spaced apart and located at specific points called nodes, such specific points comprising at least four holes, two holes for each pair of diagonals (26, 36), such diagonals (26 36) being attached to the flange (21, 31) by fasteners (25A, 35A), most commonly axle fastening screws, at their ends, the diagonal (26, 36) in double being angled according to specifications from the project.
• Said "Z" piece as shown in Figures 4 to 5B, comprises a profiled steel plate (21, 31) with two upper (22, 32) and lower (23, 33) tabs disposed on the vertical ends of the flange, further comprising an intermediate surface or body (2, 34) between the two flaps, said surface comprising four or more fixing holes (25, 35) of the diagonals (26, 36), said holes being disposed in the central, upper and / or lower part of the intermediate body.
• said "Z" piece comprises a two-flap upper (32) and lower (33) profiled steel plate disposed at the vertical ends of the banzo (31), further comprising an upper section (34a) , an intermediate section (34b) and a lower section (34c) between the two flaps, the upper section (34a) being between the upper flap (32) and the intermediate section (34b) and the lower section (34c) being between the lower flap (33) and the intermediate section (34b).
• the intermediate section (34b) comprised between the upper (34a) and lower (34c) sections has characteristic angulation with respect to both upper and lower sections, said angulation being sufficient to impart greater strength to the assembly, and giving greater structural resistance to the part.
• said upper (34a) and lower (34c) surfaces comprise four or more diagonal fixing holes (35).
• the truss beam resulting from the present invention comprises two parallel flanges (11, 21, 31) connected by diagonals (12, 22, 32), said diagonals being fixed to the flanges by fastening elements (14, 25A, 35A), in their ends.
• the fixing holes (14, 25, 35) of the diagonals of the present invention are arranged side by side and sufficiently spaced to allow the angulation of the diagonals.
• each set of fixing holes of each node comprises an additional hole, centrally positioned between the other holes, for fixing an additional structural element vertically arranged and fixed by a fixing element to the flanges in their ends.
• V profile Z "or flange (31) may constitute a structural reinforcement element (Fig. 6B) or amendment (Fig. 6A) in the node section.
• Fig. 6B structural reinforcement element
• Fig. 6A amendment
• the section of said flange (31), containing all or part of the holes (35), is superimposed on an existing flange (31) and bolted to it together with the diagonals (36), thereby constituting a reinforcement element of the knot.
• two flanges (31) may be interconnected in their holes (35) or knots and fixed by overlapping a section of said flange (31), containing all or part of the holes.
• banzo (21, 31) has characteristic geometry that allows its conformation, overlapping and after rotation, to another banzo, as illustrated in Fig. 6.
• the present invention provides, alternatively, for the arrangement of holes in the flange vertically, as illustrated by Figures 8, 8A and 9, and one of these alternative embodiments the fixing hole of the diagonals is shared by two opposite diagonals. , as illustrated by Figure 9, such a configuration being in accordance with the scope of the present invention in banzo / diagonal ratio.
• the present invention provides a process for the fabrication of lattice beam structures comprising, in their basic configuration: a) the manufacture of profiled beams with determined longitudinal spacing and spacing therebetween; b) determining the distance between the flanges and the angle required for the diagonals; c) the manufacture of diagonals in specific size and thickness; d) the fixing of at least two diagonals, in parallel and at predetermined angulation, in one of the beam sections and between the flanges, by the use of fastening elements; ee) the fixing, in the beam section adjacent to the first diagonal fixing section, of at least two diagonals between the flanges, in parallel and at a predetermined angle and opposite to the angle of the immediately preceding section, by truss effect, by means of the use of fasteners; and f) repeating the previous steps d) and e), as often as necessary for the conformation of the desired lattice beam.
• the present invention depending on the load and span determined for the beam, only one diagonal per section of the truss beam can be fixed.
• the present invention is characterized in that it permits the anticipated production of the main profile (flanges) for storage and immediate delivery since the profile is perforated such that transverse elements (diagonals, or plumbs, etc.) can be connected. lengths, forming trusses and the like with different heights and load capacities, suitable for different spans and loads, regardless of the gap determination and the requests to be applied.
• the present invention is further characterized by the manner in which each transverse element which is joined to the longitudinal elements, each connected by one or a pair of screws (or the like), constituting axes in number of transverse elements compatible with each other. structural demands of the desired transverse beam.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Rod-Shaped Construction Members (AREA)
• Joining Of Building Structures In Genera (AREA)
• Supports For Plants (AREA)
• Display Racks (AREA)

Applications Claiming Priority (2)

Publications (1)

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Cited By (4)

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Citations (7)

• 2009
  • 2009-03-23 BR BRPI0902183-3A patent/BRPI0902183B1/pt active IP Right Grant
• 2010
  • 2010-03-23 AR ARP100100933A patent/AR075930A1/es unknown
  • 2010-03-23 WO PCT/BR2010/000084 patent/WO2011116437A1/pt active Application Filing

Patent Citations (7)

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