WO1994015037A1 - Element de plancher et son procede de fabrication - Google Patents

Element de plancher et son procede de fabrication Download PDF

Info

Publication number
WO1994015037A1
WO1994015037A1 PCT/SE1993/001084 SE9301084W WO9415037A1 WO 1994015037 A1 WO1994015037 A1 WO 1994015037A1 SE 9301084 W SE9301084 W SE 9301084W WO 9415037 A1 WO9415037 A1 WO 9415037A1
Authority
WO
WIPO (PCT)
Prior art keywords
floor element
elements
concrete
radius
cumbering
Prior art date
Application number
PCT/SE1993/001084
Other languages
English (en)
Inventor
Jörgen Thor
Original Assignee
Thor Joergen
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
Application filed by Thor Joergen filed Critical Thor Joergen
Priority to EP94903210A priority Critical patent/EP0678140A1/fr
Publication of WO1994015037A1 publication Critical patent/WO1994015037A1/fr
Priority to NO952430A priority patent/NO301433B1/no

Links

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
    • E04C3/20—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
    • E04C3/26—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 prestressed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0068—Embedding lost cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement

Definitions

  • Floor structures to multy story buildings like offices, appartment houses etc are normally made of concrete eithe as on site cast floors or as prefabricated floor elements
  • the casting is done in two steps. First the load bearing deck is casted. Later on when the building has go roof and walls a top casting is done which is needed as a base for the flooring. Sometimes the casting to a finishe surface can be done in one and the same casting (one step casting). This, however, put big requirements on planning workmanship and the weather conditions. A rain can com ⁇ pletely destroy the surface.
  • hollow cor elements consist of concrete elements of some lenght with longitudinal holes in the middle of the ele ⁇ ment height. The function of the holes is primarily to save material and limit the weight with a preserved total structural height and thereby keeping mainly the same loa bearing capacity and stiffness.
  • the hollow core concrete elements are produced very ra ⁇ tional in a longish continuous casting process where a wagon automatically is moved forwards on a casting bed. The wagon delivers concrete, forms the elements and creat es the holes. Afterwards a cutting to desired element lengths is done.
  • Lately information also have been brought forward which indicate that the elements .in certain applications can get a large reduction of the shear force capacity with a reduced safety against shear collaps as a consequence.
  • the present invention consists of a prefabricated floor element of concrete with all the advantages of element construction but without the drawbacks pointed out above for hollow core elements. More over the design of the element and the joint procedure imply that the same tough ⁇ ness and continuity as for a conventionally on site casted floor can be obtained.
  • Fig. 1 shows a plane section, cross sections and a long ⁇ itudinal section of a finished element.
  • Fig. 2 shows the principle for the casting and the mould design
  • Fig. 3 shows the design of the longitudinal joints bet ⁇ ween two elements
  • Fig. 4 shows the design of the end joint of the element
  • Fig. 5 shows how a static composite function with a steel beam can be obtained
  • Fig. 6 shows a division of a long mould in parts.
  • Fig. 7 shows an example how the flexibilitying of the mould can be obtained
  • Fig. 8 shows examples of the design of the mould sides
  • Fig. 9 shows examples of the design of the end stop
  • Fig. 10 describes the principle for the production of an element.
  • the element is not produced a ⁇ a hollow core element in a continuous casting process but is casted according to fig.
  • the choice of radius is adapted so that the shownuringbering roughly corresponds to the estimated deflection for the span in question due to the dead load of the elements. This results in that the ele ⁇ ments after erection become mainly plane.
  • the described adjustment arrangement is simple to obtain when producing the elements by casting in a fix mould but impossible or very difficult to obtain by the continuously hollow core element production.
  • the arrangement can also be used to fix the elements to each other before the casting of the joints is done. This results in the elements, in contrary to hollow core elements, will act as a stabilizing slab even without the joints being casted. The casting of the joints thereby can be done in a later stage if wished.
  • the design of the joints in the end 15 of the element can be seen in fig. 4.
  • the design implies that a bare reinforcement mesh 16 which is ancored in the element will be covered in concrete when casting the joints. This makes it possible to easily obtain a continuity with negative moment ⁇ and thereby an increased load bearing capacity and stiffne ⁇ s by adding a rein- forcement 17 above the support which is covered in concrete together with the bare mesh. Thereby an effi ⁇ cient ancoring to the elements is obtained. For hollow core elements this possibility to obtain a continuity over the support is lacking.
  • the design of the end joints also implies that a very efficient static composite function easily can be obtained if the support is a composite beam by the element end joints 15 and the reinforcement mesh 16 and the reinforcement 17 respec ⁇ tively being efficiently casted together.
  • the spare bodies are arranged in such a way that a "cross beam system” is created (beams as well along as across the element).
  • the transverse beams 18 add to an increased stiffness across the element which is of value espe ⁇ cially for the impact sound insolation.
  • the longitudinal beams 19 also have a pure static function by transferring shear forces from the tensile reinforcement in the bottom to the compressed plate in the top. To be able to transfer these shear forces a hoope reinforcement, or similar is needed in the lon ⁇ gitudinal beams.
  • the "check pattern" created by the joints can be used for putting in cables and smaller pipes.
  • a convenient way to produce the elements is in a elon ⁇ gated mould 40-80 m with a bottom of steel on a vib ⁇ rator table.
  • the length is devided into a number of parts, where each part contains the before mentioned bending radius of 200-300 m (fig. 6).
  • a convenient lenght of one part can be 20-30 m. This gives a difference in level of about 200 and 450 mm respectively.
  • the bending can for instance be obtained by making the legs 20, which support the mould bottom 8, with dif ⁇ ferent heights corresponding to the bending radius (fig. 7).
  • a suitably normal element width is 1200 mm and the height 300 mm.
  • the mould sides can be made of steel profile ⁇ 21 composed according to fig. 8. In the mould sides holes 22 are made for casting the previous men ⁇ tioned adjustment bars 12 into the element.
  • the end stops can be made up of steel profiles 23 according to fig. 9.
  • Reinforcement mesh 28 is put above the cell plas ⁇ tic blocks 6 and the remaining concrete 28 is casted.
  • the upper surface (the finished elements bottom surface) is drawn to the desired smooth ⁇ ness. If possible the elements are heated for a quicker hardening.
  • the elements are taken out from the mould 7 by lift hokes 30 in the end stops 23.
  • fig. 11 a simplified alternative to conventionally shearforce reinforcement is shown in the form of rein ⁇ forcement hoopes (compare 25 in fig. 10b). Instead the reinforcement mesh 16 is being made wider and bent up along its longitudinal sides whereafter the reinforce ⁇ ment mesh 28 is connected to the bent mesh 16. In fig. 11 a is shown the proceedings at casting and in fig. 11 b the finished element in the turned right way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Floor Finish (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

Elément de plancher (1) en béton (2) conçu pour être préfabriqué et dont les parties internes contiennent des corps (6) réalisés dans un matériau considérablement plus léger que le béton. L'élément (1) en comprend un dans le sens longitudinal, sur la surface inférieure (4) et sur la surface supérieure (3), ayant un encombrement identique et orienté vers le haut qui est déterminé par un rayon (10) d'encombrement constant.
PCT/SE1993/001084 1992-12-18 1993-12-17 Element de plancher et son procede de fabrication WO1994015037A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94903210A EP0678140A1 (fr) 1992-12-18 1993-12-17 Element de plancher et son procede de fabrication
NO952430A NO301433B1 (no) 1992-12-18 1995-06-16 Bjelkelagelement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203816-5 1992-12-18
SE9203816A SE500785C2 (sv) 1992-12-18 1992-12-18 Bjälklagselement och förfarande för dess framställning

Publications (1)

Publication Number Publication Date
WO1994015037A1 true WO1994015037A1 (fr) 1994-07-07

Family

ID=20388167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/001084 WO1994015037A1 (fr) 1992-12-18 1993-12-17 Element de plancher et son procede de fabrication

Country Status (4)

Country Link
EP (1) EP0678140A1 (fr)
NO (1) NO301433B1 (fr)
SE (1) SE500785C2 (fr)
WO (1) WO1994015037A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0924360A3 (fr) * 1997-12-15 2000-10-25 Peab Ab Structure de plancher en béton
WO2002057572A3 (fr) * 2001-01-22 2003-07-17 Mara D O O Tvornica Kuca I Hal Systeme de construction industrielle a grande portee a soffites plats
EP1456485A1 (fr) * 2001-12-20 2004-09-15 Fabcon, Inc. Procede pour fabriquer des panneaux uniques en beton a noyau creux
NL1027296C2 (nl) * 2004-10-19 2006-04-20 Betonson B V Vloerplaat voorzien van een beloopbaar spiegelvlak.
EP1660732A2 (fr) * 2003-07-21 2006-05-31 Ecolite International, Inc. Panneau de construction composite et procede de fabrication correspondant
CN104005515A (zh) * 2014-06-11 2014-08-27 朱彤 钢筋混凝土预制空腹梁及其施工方法
CN104314218A (zh) * 2013-07-26 2015-01-28 王本淼 一种现浇空心楼盖成孔用网状箱形构件
CN110900785A (zh) * 2019-12-11 2020-03-24 威海利东建筑科技有限公司 一种预制过梁的制作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE803427C (de) * 1951-02-01 Bimsbetonwerk Volklmgen G.mb.H., Weißenthurm (Kr. Koblenz) Bewehrte Betonplatte
US3372519A (en) * 1965-10-23 1968-03-12 Lockheed Aircraft Corp Intersecting, modular barrier clamp joint
US4030262A (en) * 1973-07-09 1977-06-21 Dean Almeta C Building panel connector assembly and the like
EP0000837A1 (fr) * 1977-08-15 1979-02-21 Graeme John Tilly Panneaux muraux portants et procédé pour leur fabrication
US4219978A (en) * 1978-08-03 1980-09-02 Brown Billy R Pre-cast reinforced concrete building panel wall structure
DE3031276A1 (de) * 1980-08-19 1982-03-04 Koch Gmbh Bau + Beton Kg, 7800 Freiburg Fertigteilhohldeckenelement und verfahren zu seiner herstellung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE803427C (de) * 1951-02-01 Bimsbetonwerk Volklmgen G.mb.H., Weißenthurm (Kr. Koblenz) Bewehrte Betonplatte
US3372519A (en) * 1965-10-23 1968-03-12 Lockheed Aircraft Corp Intersecting, modular barrier clamp joint
US4030262A (en) * 1973-07-09 1977-06-21 Dean Almeta C Building panel connector assembly and the like
EP0000837A1 (fr) * 1977-08-15 1979-02-21 Graeme John Tilly Panneaux muraux portants et procédé pour leur fabrication
US4219978A (en) * 1978-08-03 1980-09-02 Brown Billy R Pre-cast reinforced concrete building panel wall structure
DE3031276A1 (de) * 1980-08-19 1982-03-04 Koch Gmbh Bau + Beton Kg, 7800 Freiburg Fertigteilhohldeckenelement und verfahren zu seiner herstellung

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0924360A3 (fr) * 1997-12-15 2000-10-25 Peab Ab Structure de plancher en béton
WO2002057572A3 (fr) * 2001-01-22 2003-07-17 Mara D O O Tvornica Kuca I Hal Systeme de construction industrielle a grande portee a soffites plats
EP1456485A1 (fr) * 2001-12-20 2004-09-15 Fabcon, Inc. Procede pour fabriquer des panneaux uniques en beton a noyau creux
EP1456485A4 (fr) * 2001-12-20 2006-05-17 Fabcon Inc Procede pour fabriquer des panneaux uniques en beton a noyau creux
EP1660732A2 (fr) * 2003-07-21 2006-05-31 Ecolite International, Inc. Panneau de construction composite et procede de fabrication correspondant
EP1660732A4 (fr) * 2003-07-21 2010-02-10 Ecolite International Inc Panneau de construction composite et procede de fabrication correspondant
US7757454B2 (en) 2003-07-21 2010-07-20 Ecolite International, Inc. Composite building panel and method of making composite building panel
NL1027296C2 (nl) * 2004-10-19 2006-04-20 Betonson B V Vloerplaat voorzien van een beloopbaar spiegelvlak.
EP1655120A1 (fr) * 2004-10-19 2006-05-10 Betonson B.V. Panneau de plancher avec une surface de miroir circulable
CN104314218A (zh) * 2013-07-26 2015-01-28 王本淼 一种现浇空心楼盖成孔用网状箱形构件
CN104005515A (zh) * 2014-06-11 2014-08-27 朱彤 钢筋混凝土预制空腹梁及其施工方法
CN110900785A (zh) * 2019-12-11 2020-03-24 威海利东建筑科技有限公司 一种预制过梁的制作方法

Also Published As

Publication number Publication date
NO952430L (no) 1995-08-10
EP0678140A1 (fr) 1995-10-25
NO952430D0 (no) 1995-06-16
SE9203816L (sv) 1994-06-19
SE500785C2 (sv) 1994-09-05
NO301433B1 (no) 1997-10-27
SE9203816D0 (sv) 1992-12-18

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