EP2698484A1 - Construction en béton avec un support à point - Google Patents

Construction en béton avec un support à point Download PDF

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Publication number
EP2698484A1
EP2698484A1 EP12005851.6A EP12005851A EP2698484A1 EP 2698484 A1 EP2698484 A1 EP 2698484A1 EP 12005851 A EP12005851 A EP 12005851A EP 2698484 A1 EP2698484 A1 EP 2698484A1
Authority
EP
European Patent Office
Prior art keywords
concrete
point
anchoring zone
diagonal
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12005851.6A
Other languages
German (de)
English (en)
Other versions
EP2698484B1 (fr
Inventor
Ulrich Dipl.-Ing. Bauermeister
Johannes Dr.-Ing. Furche
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Filigran Tragersysteme & Co KG GmbH
Original Assignee
Filigran Tragersysteme & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to PL12005851T priority Critical patent/PL2698484T3/pl
Application filed by Filigran Tragersysteme & Co KG GmbH filed Critical Filigran Tragersysteme & Co KG GmbH
Priority to PT120058516T priority patent/PT2698484E/pt
Priority to ES12005851.6T priority patent/ES2528486T3/es
Priority to EP12005851.6A priority patent/EP2698484B1/fr
Priority to DK12005851.6T priority patent/DK2698484T3/en
Priority to JP2015525788A priority patent/JP5943332B2/ja
Priority to KR1020157006333A priority patent/KR101694361B1/ko
Priority to RU2015102734/03A priority patent/RU2598950C1/ru
Priority to IN722DEN2015 priority patent/IN2015DN00722A/en
Priority to US14/420,891 priority patent/US9469993B2/en
Priority to CN201380047383.1A priority patent/CN104619935B/zh
Priority to CA2879904A priority patent/CA2879904C/fr
Priority to PCT/EP2013/062555 priority patent/WO2014026781A1/fr
Publication of EP2698484A1 publication Critical patent/EP2698484A1/fr
Application granted granted Critical
Publication of EP2698484B1 publication Critical patent/EP2698484B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • 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
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • E04C5/065—Light-weight girders, e.g. with precast parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
    • E04C5/065—Light-weight girders, e.g. with precast parts
    • E04C5/0653—Light-weight girders, e.g. with precast parts with precast parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2103/00—Material constitution of slabs, sheets or the like
    • E04B2103/02—Material constitution of slabs, sheets or the like of ceramics, concrete or other stone-like material

Definitions

  • the invention relates to a point-based element or flat concrete pavement according to the preamble of patent claim 1.
  • 2c are each two adjacent diagonal struts in the same direction and shown inclined substantially parallel to each other at about 45 ° relative to the lower chords, so that the upper concrete anchoring zone to a considerable extent in the longitudinal direction of the lattice girder over the lower concrete anchoring zone of the same diagonal strut to a very large degree offset, which corresponds approximately to the lattice girder height.
  • the invention has for its object to provide a point-based element or flat concrete pavement with even better effectiveness of the reinforcement and larger increase factors against punching.
  • This training is achieved not only by the special angle of at least the supporting next and the following diagonal struts, but may optionally be created by special cutting pre-fabricated lattice girder at different locations in the longitudinal direction, or resulting from a combination of these structural measures.
  • the steeper angle of inclination of at least the nearest supporting diagonal strut should be between about 70 ° to 85 ° relative to the lower chords, while the shallow angle of inclination of at least the next offshore diagonal strut should be between 45 ° to 75 °.
  • the steeper the angle of the supporting diagonal strut, the steeper the angle of the diagonal strut away from the support can be, but in any case about 10 ° flatter than the steeper angle.
  • the improved efficiency of the reinforcement and particular high increase factors can also be achieved if the surface of the diagonal brace and / or straps is ribbed. This results in an even better toothing with the concrete.
  • the diameter of at least the lower chords is greater than the diameter of the diagonal strut snake.
  • the diameter of the lower chords should be at least 10 mm, the diagonal struts then being e.g. have a diameter of about 9 mm.
  • the projection of the upper concrete anchoring zone over the lower concrete anchoring zone of the supporting diagonal strut should be at least approximately equal to the distance of the lower concrete anchoring zone from the vertical projection of the support side surface, plus at least one Part of the measure of a concrete cover of the reinforcement in the support corresponds.
  • the element or flat concrete ceiling is made of prefabricated concrete slabs with a concrete layer, wherein the respective lattice girder is embedded in the concrete slab.
  • the supernatant of the upper concrete anchoring zone of the supporting diagonal next strut should correspond relatively closely to the distance of an edge of the concrete slab from the vertical projection of the support side surface and / or at most the distance of the edge of the concrete slab from a near-edge reinforcement in the support.
  • the supernatant should maximally correspond to approximately half the width of a joint between two adjacent concrete slabs.
  • this should be prefabricated molded parts or pieces of chord, which protrude at both ends in the longitudinal direction of the lattice girder over the upper bends and thus contribute to the creation of each upper concrete anchoring zone.
  • the Fig. 1 and 2 show a lattice girder 1 in a side view and in a vertical section as it forms part of a shear force and punching shear reinforcement in an element or flat concrete pavement BD (FIG. Fig. 5 ) can be embedded.
  • the lattice girder 1 has two straight, continuous and parallel lower chords U, two diagonal strut snakes D (alternatively and not shown only a diagonal strut snake) and a straight, continuous upper flange O.
  • the cross section of the lattice girder 1 is triangular, for example.
  • diagonal strut snakes D are eg down below on the lower chords U and above the outside of the upper flange O in upper and lower fixing points (welds) SU, SO set.
  • Each diagonal strut snake D is for example regularly bent so that largely similar diagonal struts S1, S2 arise, which are connected to each other via upper and lower bends 11, 12 and in the same direction upwards and in the direction of one end of the lattice girder 1 different obliquely inclined, the in Fig. 1 shown on the right.
  • This end area is located in the concrete floor BD ( Fig. 5 ) associated with a support T of the point support of the ceiling, such that the diagonal struts S1, S2 are inclined in the same direction upwards and in the direction of the column vertical axis A.
  • At least the next closest diagonal strut S1 (assuming that the lattice girder 1 is tapered towards the support with its end portion shown) is inclined at an angle ⁇ 1 to the lower and upper girths U, O towards the support T, which is less than 90 ° and between about 70 ° to 85 °.
  • the next following diagonal brace S2 is inclined in the same direction but at a shallower angle ⁇ 2 relative to the straps O, U up to the support T, which is between about 45 ° and 75 ° but at least 10 ° flatter than the latter steeper angles ⁇ 1.
  • the upper bends 11 between the diagonal struts S1, S2 project significantly above the upper flange O, while the lower bends 12 either terminate with the lower straps U or protrude slightly downward beyond them (as shown). It should be understood that the angles ⁇ 1, ⁇ 2 ⁇ 90 ° and ⁇ 45 °, but different from one another, ie. both diagonal struts S1, S2 incline upward and to the same lattice girder end.
  • the surface of the diagonal strut snakes D and / or the straps U, O may still have a rib structure 9 or 8 for better anchoring in the concrete.
  • the upper concrete anchoring zone VO is in the longitudinal direction of the lattice girder 1 lower concrete anchoring zone VU in Fig. 1 with a supernatant UV over.
  • the distance between the fixing points SO on the upper flange O and SU on the lower flange U for the support closest diagonal strut S1 to the supernatant UV if (as a theoretical assumption) as the upper concrete anchoring zone VO and lower concrete anchoring zone VU respectively the fixing point SO, SU the diagonal strut S1 with the respective belt O, U applies.
  • the diagonal strut combination with S1, S2 and ⁇ 1, ⁇ 2 is repeated at least once more in the longitudinal direction of the lattice girder, preferably regularly over the entire lattice girder length.
  • the diameters of the belts U, O and the diagonal struts D are highlighted with d1 and d2.
  • the diameter d1 should be greater than the diameter d2, wherein, preferably, the diameter d1 of the lower chords U should be at least 10 mm and that of the diagonal strut snake D should be about 9 mm.
  • the lattice girder 1 in the 3 and 4 are essentially the same angles ⁇ 1., ⁇ 2 provided for the diagonal struts S1, S2, as explained above. However, the upper bends 11 of the diagonal strut snakes D terminate substantially flush with the top of the top flange O here.
  • FIGS. 5 and 6 show a lattice girder 1 as part of a shear force and punching reinforcement B a concrete pavement BD (element or flat ceiling) with assignment of the lattice girder 1 to the support T.
  • a lattice girder 1 is shown, a plurality of lattice girders 1 in the concrete floor BD may be associated with the support T.
  • the support T in the embodiment shown has a square cross section with side surfaces 3 and a vertical axis A, but could also have a rectangular cross section or a polygonal cross section or a circular cross section and (not shown) with a reinforcement (FIG. FIGS. 9 and 10 ).
  • Similar lattice girders 1 could also be arranged in parallel and installed laterally and parallel to another support edge 3 and extend into the region of the support T or beyond.
  • the lattice girder 1 runs perpendicularly to the vertical projection of the support side surface 3 and essentially to the support vertical axis A.
  • the distance AS of the upper concrete anchoring zone VO from the vertical projection of the column side surface 3 is smaller than the distance of the lower concrete anchoring zone VU of the nearest diagonal brace S1 from the vertical projection of the column side surface 3.
  • Fig. 6 is the clear distance AS measured.
  • FIGS. 7 and 8 show a preferred embodiment of a concrete pavement BD.
  • the upper concrete anchoring zone VO here concludes relatively accurately with the vertical projection of the support side surface 3.
  • the distance AS is substantially equal to zero.
  • the distance of the lower concrete anchoring zone VU from the vertical projection of the support side surface 3 corresponds to the supernatant UV, for example Fig. 1 and 3 ,
  • a dashed line 4 indicates the outer edge of a prefabricated concrete slab 6, in which the lattice girder 1 is embedded in concrete, so that the lower concrete anchoring zone VU of the supporting diagonal strut S1 lies within the concrete slab 6.
  • the supernatant UV can correspond to the distance between the edge 4 of the concrete slab 6 and the vertical projection of the support side surface 3.
  • the arrangement of the lower concrete anchoring zone VU in Fig. 7 is preferably for a design of a reinforced concrete slab with prefabricated thin reinforced concrete slabs 6, in which the lower part of the punching reinforcement B has already been concreted, and which are installed at a distance (see the edge 4) for vertical projection of the side surface 3 of the support T.
  • the lower chord U of the lattice girder 1 can extend beyond the lower concrete anchoring zone VU to the vertical projection of the support side surface 3 or even further up to above the support T. be guided.
  • FIGS. 9 and 10 show another embodiment in which the upper concrete anchoring zone VO of the nearest diagonal strut S1 of the lattice girder 1 lies above the support T, ie within the vertical projection of the support side surface 3.
  • the distance AS of the upper concrete anchoring zone VO from the vertical projection of the support side surface 3 is thus negative.
  • FIGS. 9 and 10 5 also show a reinforcement 5 of the support T.
  • This reinforcement 5 or its vertical bars 5a and / or indicated brackets 5b have a predetermined distance, ie a so-called concrete cover 7 from the support side surface 3.
  • the upper concrete anchoring zone VO of the support-closest diagonal brace S1 engages in the FIGS. 9 and 10
  • the projection shown above may be a maximum value of a preferred embodiment, ie, the upper concrete anchoring zone VO should be within the vertical projection of the concrete cover 7 be placed.
  • the supernatant UV should be limited to about half the joint width.
  • the joint width is often 4 cm, but other joint widths are possible. Then the supernatant should be about 2.0 cm with a joint width of 4 cm.
  • the design of the lattice girder in the punching shear reinforcement B effectively reinforces the concrete pressure zone of the concrete slab and thus prevents premature failure.
  • the nominal yield strength of the reinforcement components used may preferably be 500 N / mm 2 .
  • Further material properties correspond to those of conventional reinforcing bars. But also reinforcing bars with other and better material properties can be used.
  • a combination of the novel lattice girder with other reinforcement elements and the same lattice girders with a different arrangement to the load introduction surface or support is possible, for example in a case in which further lattice girders are arranged parallel to the support edge or vertical projection of the support side surface 3.
  • the embodiment of the lattice girder 1 in the FIGS. 11 and 12 has no continuous upper flange, but instead of a continuous upper belt with free spaces Z in the longitudinal direction one behind the other anchoring elements 10, which are formed as moldings or Gurtabroughe, and where the upper bends 11 each of the two diagonal struts S1, S2 welded (Festlegungsstelle SU) or set in another way, for example, are latched.
  • Each anchor element 10 protrudes in the longitudinal direction of the lattice girder 1 via the bend 11, so that the upper concrete anchoring zone VO formed in the area of, for example, the welding point SO of the diagonal strut S1 closest to the support has the supernatant UV opposite the lower concrete anchoring zone VU on each lower chord U.
  • the lattice girder 1 in the FIGS. 11 and 12 can be installed like those of the previous embodiments of the concrete deck BD with respect to the support T of the point support.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)
EP12005851.6A 2012-08-13 2012-08-13 Construction en béton avec un support à point Active EP2698484B1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
PT120058516T PT2698484E (pt) 2012-08-13 2012-08-13 Laje de betão treliçada ou plana apoiada em pontos
ES12005851.6T ES2528486T3 (es) 2012-08-13 2012-08-13 Losa de hormigón plana o en elementos soportada por puntos
EP12005851.6A EP2698484B1 (fr) 2012-08-13 2012-08-13 Construction en béton avec un support à point
DK12005851.6T DK2698484T3 (en) 2012-08-13 2012-08-13 Point-supported element or flat concrete
PL12005851T PL2698484T3 (pl) 2012-08-13 2012-08-13 Podparty punktowo strop betonowy płaski lub z elementów
KR1020157006333A KR101694361B1 (ko) 2012-08-13 2013-06-18 평탄 콘크리트 천장
JP2015525788A JP5943332B2 (ja) 2012-08-13 2013-06-18 点支持されたコンクリート天井
RU2015102734/03A RU2598950C1 (ru) 2012-08-13 2013-06-18 Точечно опирающееся элементное или плоское бетонное перекрытие
IN722DEN2015 IN2015DN00722A (fr) 2012-08-13 2013-06-18
US14/420,891 US9469993B2 (en) 2012-08-13 2013-06-18 Point-supported element or flat concrete ceiling
CN201380047383.1A CN104619935B (zh) 2012-08-13 2013-06-18 点支撑构件或混凝土平顶棚
CA2879904A CA2879904C (fr) 2012-08-13 2013-06-18 Dalle en beton plate ou a elements soutenue par points
PCT/EP2013/062555 WO2014026781A1 (fr) 2012-08-13 2013-06-18 Dalle en béton plate ou à éléments soutenue par points

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12005851.6A EP2698484B1 (fr) 2012-08-13 2012-08-13 Construction en béton avec un support à point

Publications (2)

Publication Number Publication Date
EP2698484A1 true EP2698484A1 (fr) 2014-02-19
EP2698484B1 EP2698484B1 (fr) 2014-11-19

Family

ID=46969920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12005851.6A Active EP2698484B1 (fr) 2012-08-13 2012-08-13 Construction en béton avec un support à point

Country Status (13)

Country Link
US (1) US9469993B2 (fr)
EP (1) EP2698484B1 (fr)
JP (1) JP5943332B2 (fr)
KR (1) KR101694361B1 (fr)
CN (1) CN104619935B (fr)
CA (1) CA2879904C (fr)
DK (1) DK2698484T3 (fr)
ES (1) ES2528486T3 (fr)
IN (1) IN2015DN00722A (fr)
PL (1) PL2698484T3 (fr)
PT (1) PT2698484E (fr)
RU (1) RU2598950C1 (fr)
WO (1) WO2014026781A1 (fr)

Cited By (1)

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BE1025767B1 (nl) * 2018-03-01 2019-07-03 Intersig Nv Versterkingselement

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HUE057759T2 (hu) 2015-03-17 2022-06-28 Leviat GmbH Átszúródási vasalatelem és egy átszúródási vasalatelemmel ellátott lemezzel rendelkezõ építmény
US11220822B2 (en) * 2016-07-15 2022-01-11 Conbar Systems Llc Reinforcing assemblies having downwardly-extending working members on structurally reinforcing bars for concrete slabs or other structures
WO2018107235A1 (fr) * 2016-12-14 2018-06-21 Starpartner Pty Ltd Raidisseur, élément de coffrage permanent et dalle
KR102000534B1 (ko) * 2017-11-03 2019-07-17 한국건설기술연구원 거푸집 겸용 고내구성 텍스타일 보강 패널을 이용한 철근콘크리트 구조물 시공방법
AU2019338428A1 (en) * 2018-09-10 2021-04-15 Hcsl Pty Ltd Building panel

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BE1025767B1 (nl) * 2018-03-01 2019-07-03 Intersig Nv Versterkingselement
EP3533946A1 (fr) * 2018-03-01 2019-09-04 Intersig NV Élément d'armature
BE1026060B1 (nl) * 2018-03-01 2019-10-01 Intersig Nv Versterkingselement

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PT2698484E (pt) 2015-02-04
JP2015528533A (ja) 2015-09-28
US9469993B2 (en) 2016-10-18
RU2598950C1 (ru) 2016-10-10
US20150204074A1 (en) 2015-07-23
WO2014026781A1 (fr) 2014-02-20
DK2698484T3 (en) 2015-02-02
KR20150042267A (ko) 2015-04-20
CN104619935A (zh) 2015-05-13
CN104619935B (zh) 2016-08-24
CA2879904A1 (fr) 2014-02-20
JP5943332B2 (ja) 2016-07-05
ES2528486T3 (es) 2015-02-10
CA2879904C (fr) 2017-02-14
EP2698484B1 (fr) 2014-11-19
PL2698484T3 (pl) 2015-03-31
IN2015DN00722A (fr) 2015-07-10
KR101694361B1 (ko) 2017-01-09

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