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
  • E04C2003/023—Lintels
• • 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
  • E04C2003/0421—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 comprising one single unitary part
• • 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

Definitions

• a typical channel lintel comprises a horizontal base with upright side legs along both sides of the horizontal base. Masonry being supported sits within the channel i.e. between the side legs and on the horizontal base. However, such an arrangement is structurally not efficient.
• the protrusions may be spaced apart from each other and disposed along the lintel body's length. Some of the plurality of protrusions may be disposed on the base member and the others on the side legs. Preferably, each of the protrusions may be elongate and may have a protrusion longitudinal axis which traverses a longitudinal axis of the lintel body.
• each of the protrusions may be arranged to face inwardly towards the channel.
• the load bearing element may include lip members projecting from respective edges of the side legs and along the longitudinal axis of the channel, with the lip members arranged to support the masonry elements.
• the lintel may include a plurality of perforations and the plurality of perforations may be interleaved with respective ones of the plurality of protrusions.
• the perforations may be circular or other shapes.
• Figure 2 is an closed up perspective view of part A of Figure 1 to show a section of the lintel more closely;
• Figure 3 is perspective view of the section of the lintel of Figure 2 without showing the masonry;
• Figure 4 is a cross-sectional view of the lintel of Figure 3 in a direction B- B, and
• Figure 5 is a partial sectional view of the lintel of Figure 3 in a direction C.
• Figure 1 show a lintel 100 according to a preferred embodiment for spanning an opening 200.
• the lintel 100 has end portions 102,104 which are supported by support structures 202,204 defining the opening 200.
• the lintel 100 is arranged to bear load 206 above the opening 200 and in this embodiment, the load 206 and the support structures 202,204 are formed from masonry such as bricks, concrete units, building stones etc.
• Figure 2 is a closed up view of part A of Figure 1 to show a section of the lintel 100 more closely and Figure 3 is a perspective view of the section of Figure 2 without showing the support structures.
• Figure 4 is a cross-sectional view of the lintel of Figure 3 in the direction B-B, whereas Figure 5 is a partial sectional view of the lintel 100 in the direction C of Figure 3.
• the lintel 100 is normally prefabricated and preferably made of steel or other metal.
• the lintel 100 comprises an elongate lintel body 106 having a longitudinal axis 108 which spans the opening 200 and the lintel body 106 includes an elongate base member 110 which is generally flat.
• the lintel body 106 further includes side legs 112,114 projecting uprightly along respective sides of the base member 110 to define a generally U-shaped channel 116 (see Figure 4).
• the lintel 100 further includes a load bearing element for supporting masonry and the load bearing element is arranged to project from at least one of the side legs 112,114.
• the load bearing element includes lip members 118,120 projecting inwardly and toward each other at approximately right angles to the side legs 112,114.
• Each of the opposing lip members 118,120 has a width W of about 10mm.
• the lintel 100 further comprises a plurality of protrusions 122 arranged to strengthen or reinforce the structural strength of the lintel body 106.
• the protrusions 122 are formed on the lintel body 106 and regularly spaced along the longitudinal axis 108 of the lintel body 106 and centre-to-centre distance between adjacent protrusions is about 30mm.
• the protrusions 122 are formed on the base member 100 as well as the side legs 112,114 to form sets of protrusions with each set 122a having one protrusion 122 on each of the base member 100 and side legs 112,114 aligned along a common plane.
• the lintel body 106 further includes a series of perforations and in this embodiment, the perforations are circular apertures 126 arranged as rows and interleaved between the plurality of elongate perforations. Each row has two circular apertures 126 on each of the base member 110 and the side legs 112,114. These circular apertures 126 are arranged to receive mortar to allow greater bonding between the lintel 100 and sand-cement plaster finish applied to the lintel 100.
• the lintel 100 is arranged to span the opening 200 as shown in Figure 1.
• the masonry (or load) 206 rests on the lip members 118,120 and thus, the lip members 118,120 are arranged to support the weight of the load 206 on top of the lintel 100.
• the load 206 acting on the lip members 118,120 is progressively transferred to the support structures 202,204 via the lintel body 106 (via the side legs 112,114 and the base member 110) and the ends 102,104 of the lintel body.
• the protrusions 122 enable the lintel 100 to support more load, especially in situations with narrower openings 200 (and thus, the lintel 100 would be correspondingly shorter).
• plaster as thin as 3mm may be used for the masonry units. This is not possible with conventional channel lintels because side legs of such lintels would be located outside of the masonry.
• the lip members 118,120 may increase the load capacity of the lintel 100.
• the stiffness of a 60mm by 60mm (i.e. width and height) lintel 100 with the 10mm lip members 118,120 is about 30% greater than a similarly sized lintel with no lip members.
• the protrusions 122 on the side legs 112,114 helps to increase the load capacity for shorter spans, and also help in plaster keying or bonding.
• the protrusions 122 may not be as superior as the perforations 126 (since the protrusions 122 are "blind holes” and not through holes) which allow more mortar to penetrate and bond better but the protrusions still helps in the bonding process since mortar can fill (outside of) the protrusions 122.
• the described embodiment should not be construed as limitative.
• the protrusions 122 are shaped as elongate finite strips but other shapes are envisaged.
• the protrusions 122 are arranged with their longitudinal protrusion axis 124 running across the width of the base member 110 and up the side legs 112,114 to obtain maximum benefit, but the protrusions 122 may be arranged in other orientations or directions, such as parallel to the length or longitudinal axis 108 of the lintel body 106, although this is not preferred.
• the protrusions 122 are spaced from each other and are disposed along the entire length of the lintel body 106 for ease of manufacturing. This is also beneficial since the amount of end portions 102,104 of the lintel 100 which bear or rest on the support structures 202,204 is usually determined on site, based on the length of the lintel and the opening 200 etc. However, it is envisaged that the protrusions 122 need only be formed at or near the end portions 102,104 of lintel body 106 which rest on the support structures 202,204 to achieve the advantage of load transfer efficiency and thus, the protrusions 122 may not be formed throughout the entire length of the lintel body 106.
• the protrusions 122 may only be formed on just one of the side legs 122,144 or not on the side legs 122,144 and just at the base member 110.
• the lip member's 118,120 shape and dimensions may change.
• the described embodiment illustrates continuous lip members 118,120 extending along the length of the lintel body which makes manufacturing easier, it is envisaged that the lip members 118,120 may include a series of discrete members spaced from each other.
• the dimension of the lip members 118,120 may vary depending on size of the lintel 100 and application. There is no specific limit on the lip member dimensions but if the lip members 118,120 are too small, the effect and benefit may be limited, whereas if the lip members 118,120 are too large, the load transfer may not be efficient.
• the lip members 118,120 project towards each other in the described embodiment, but it is envisaged that the lip members 118,120 may face outwards and away from each other.
• the lintel 100 of the described embodiment includes the generally U-shaped channel 116 but the shape of the channel 116 may vary. Indeed, it is envisaged that aspects of the described embodiment may also be used for a "box lintel" where the load bearing element may occlude the channel 116.
• the load bearing element may project from one edge of one of the side legs 112,114 and extend across to the other side leg 112,114 to create a box-like lintel where load would still rest on the load bearing element.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Joining Of Building Structures In Genera (AREA)
• Supports For Plants (AREA)
• Reinforcement Elements For Buildings (AREA)
• Installation Of Indoor Wiring (AREA)
• Connections Arranged To Contact A Plurality Of Conductors (AREA)
• Insulators (AREA)
• Details Of Indoor Wiring (AREA)
• Bridges Or Land Bridges (AREA)
• Floor Finish (AREA)
• Revetment (AREA)

Priority Applications (13)

Applications Claiming Priority (2)

Publications (1)

Family

ID=61562230

Family Applications (1)

Country Status (23)

Families Citing this family (1)

Citations (5)

Family Cites Families (6)

• 2016
  • 2016-09-09 SG SG10201607534SA patent/SG10201607534SA/en unknown
• 2017
  • 2017-08-29 EP EP17849204.7A patent/EP3510213B1/en active Active
  • 2017-08-29 JO JOP/2017/0171A patent/JOP20170171B1/ar active
  • 2017-08-29 EA EA201990662A patent/EA037062B1/ru not_active IP Right Cessation
  • 2017-08-29 BR BR112019004453A patent/BR112019004453A2/pt not_active Application Discontinuation
  • 2017-08-29 MA MA046201A patent/MA46201A/fr unknown
  • 2017-08-29 CN CN201780054905.9A patent/CN109790714A/zh active Pending
  • 2017-08-29 PE PE2019000484A patent/PE20190772A1/es not_active Application Discontinuation
  • 2017-08-29 MX MX2019002721A patent/MX2019002721A/es unknown
  • 2017-08-29 AU AU2017325512A patent/AU2017325512A1/en not_active Abandoned
  • 2017-08-29 CA CA3036210A patent/CA3036210A1/en not_active Abandoned
  • 2017-08-29 WO PCT/SG2017/050425 patent/WO2018048347A1/en active Search and Examination
  • 2017-08-29 KR KR1020197009183A patent/KR102470434B1/ko active IP Right Grant
  • 2017-08-31 TW TW106129752A patent/TW201812162A/zh unknown
  • 2017-09-05 UY UY0001037395A patent/UY37395A/es not_active Application Discontinuation
  • 2017-09-08 AR ARP170102498A patent/AR109601A1/es unknown
• 2019
  • 2019-03-04 IL IL265161A patent/IL265161A/en unknown
  • 2019-03-06 PH PH12019500490A patent/PH12019500490A1/en unknown
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  • 2019-03-06 DO DO2019000054A patent/DOP2019000054A/es unknown
  • 2019-03-19 ZA ZA201901715A patent/ZA201901715B/en unknown
  • 2019-03-28 CO CONC2019/0003106A patent/CO2019003106A2/es unknown
  • 2019-04-05 EC ECSENADI201924061A patent/ECSP19024061A/es unknown

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