WO1988001330A1 - Method for making a casting on a profile sheet, and profile sheet for the application of the method - Google Patents

Method for making a casting on a profile sheet, and profile sheet for the application of the method Download PDF

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Publication number
WO1988001330A1
WO1988001330A1 PCT/FI1987/000105 FI8700105W WO8801330A1 WO 1988001330 A1 WO1988001330 A1 WO 1988001330A1 FI 8700105 W FI8700105 W FI 8700105W WO 8801330 A1 WO8801330 A1 WO 8801330A1
Authority
WO
WIPO (PCT)
Prior art keywords
profile sheet
prestressing
casting
profile
sheet
Prior art date
Application number
PCT/FI1987/000105
Other languages
French (fr)
Inventor
Pentti Wilhelm VAINIONPÄÄ
Original Assignee
Vainionpaeae Pentti W
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 Vainionpaeae Pentti W filed Critical Vainionpaeae Pentti W
Publication of WO1988001330A1 publication Critical patent/WO1988001330A1/en

Links

Classifications

    • 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
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • 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
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/28—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups combinations of materials fully covered by groups E04C2/04 and E04C2/08
    • 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
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing

Definitions

  • This invention is related to a method -for making a casting on a profile sheet used on roofs or floors and base floors, and to a profile sheet for the application of the method.
  • the object of this invention is to create a method for prestressing the profile sheet itself, so that steel bars be not necessarily needed.
  • the object of the invention is furthermore to create a profile sheet for the application of the method.
  • a method according to the invention is characterized by that before, during or after the casting the profile sheet is prestressed by directing essentially onto the underside of the profile sheet a force that has a contractive effect on the profile sheet.
  • An advantageous application of a method according to the invention is characterized by that the prestressing is effected with a prestressing wire fitted on the underside of the profile sheet, which prestressing wire is before the commencement of the prestressing anchored at one end on one edge of the profile sheet, and on completion of the prestressing, in tightened condition, at the other end on the opposite edge of the profile sheet.
  • Another advantageous application of a method according to the invention is characterized by that the prestressing wire is tensioned with a separate tensio ⁇ ing device, at a force of about 30-50 kN.
  • a profile sheet for the application of the method is characterized by that on the longitudinal lower planes of the profile sheet are formed protruding parts through which a metal wire, such as prestressing wire, can be slipped.
  • the profile sheet is characterized by that the protruding parts are essentially triangular in cross-section, that they are arranged at essentially regular intervals, and that their direction of protrusion alternates so that some, of them are open upward and the others downward.
  • Fig. 1 shows in perspective a profile sheet according to the invention.
  • Fig. 2 shows from the side a prestressed profile sheet.
  • Figure 1 shows a profile sheet 1 used in buildings on roofs or floors and base floors, which profile sheet is essentially trapezoidal in cross-section and has alternating, longitudinal lower and upper planes 2,3.
  • protruding parts 4 which are essentially triangular in cross-section and whose direction of protrusion alternates so that some of them are open upward and the others downward.
  • prestressing wires 5 of metal which are before the commencement of the prestressing fastened with locking elements 6, such as suitable nuts, on one edge of the profile sheet 1. After this, the prestressing wire is pulled with a separate tensioning device on the other edge of the sheet in such a way that the wire stretches.
  • the tensioning force is most advantageously about 30-50 kN (3-5 kp).
  • the wires After the wires have been tensioned, they are locked with locking elements 7, such as nuts, at the ends at which they were pulled. Thereupon the wire tries to contract to its original length and bends the sheet 1 slightly upward (Fig. 2). When after this a concrete casing is cast on the sheet, its weight straightens the sheet.
  • the protruding parts 4 can be constructed in any thinkable way. The purpose is only to get the wire 5 easily slipped onto the underside of the sheet 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

Method for making a casting on a profile sheet (1) used on roofs or floors and base floors. At present, when casting a concrete layer on profile sheets, inside the upward opening longitudinal recesses of the profile sheet are placed separate steel bars. To bring about the prestressing, the steel bars are stretched by pulling them at the ends. This can be done before or after the casting. When the concrete is dry, the tension on the steel bars is relieved, whereupon they try to bend the concrete upward in the middle. With a method according to the invention, however, the need for steel bars is eliminated by that before, during or after the casting the profile sheet (1) is prestressed by directing essentially onto the underside of the profile sheet a force that has a contractive effect on the profile sheet.

Description

METHOD FOR MAKING A CASTING ON A PROFILE SHEET, AND PROFILE SHEET FOR THE APPLICATION OF THE METHOD
This invention is related to a method -for making a casting on a profile sheet used on roofs or floors and base floors, and to a profile sheet for the application of the method.
At present, when casting a concrete layer on profile sheets, in the upward opening longitudinal recesses of the profile sheet are placed separate steel bars. To bring about the prestressing, the steel bars are stretched by pulling them at the ends. This can be done before or after the casting. When the concrete is dry, the tension on the steel bars is released, whereupon they try to bend the concrete upward in the middle, which brings a number of advantages known to a person skilled in the art.
The object of this invention is to create a method for prestressing the profile sheet itself, so that steel bars be not necessarily needed. The object of the invention is furthermore to create a profile sheet for the application of the method. A method according to the invention is characterized by that before, during or after the casting the profile sheet is prestressed by directing essentially onto the underside of the profile sheet a force that has a contractive effect on the profile sheet. An advantageous application of a method according to the invention is characterized by that the prestressing is effected with a prestressing wire fitted on the underside of the profile sheet, which prestressing wire is before the commencement of the prestressing anchored at one end on one edge of the profile sheet, and on completion of the prestressing, in tightened condition, at the other end on the opposite edge of the profile sheet.
Another advantageous application of a method according to the invention is characterized by that the prestressing wire is tensioned with a separate tensioπing device, at a force of about 30-50 kN.
A profile sheet for the application of the method is characterized by that on the longitudinal lower planes of the profile sheet are formed protruding parts through which a metal wire, such as prestressing wire, can be slipped.
An advantageous application of the profile sheet is characterized by that the protruding parts are essentially triangular in cross-section, that they are arranged at essentially regular intervals, and that their direction of protrusion alternates so that some, of them are open upward and the others downward. With a method and a profile sheet according to the invention, many advantages are reached as compared to prior art. The casting of a concrete casing under utilization of prestressing becomes considerably less expensive because separate steel bars over the profile sheet are not needed. Besides, the construction is more simple and the prestressing easier to achieve.
In the following, the invention is explained in detail by referring to the enclosed drawing, in which
Fig. 1 shows in perspective a profile sheet according to the invention.
Fig. 2 shows from the side a prestressed profile sheet.
Figure 1 shows a profile sheet 1 used in buildings on roofs or floors and base floors, which profile sheet is essentially trapezoidal in cross-section and has alternating, longitudinal lower and upper planes 2,3. As is seen in Figure 1, on the lower planes of the profile sheet are at regular intervals formed protruding parts 4 which are essentially triangular in cross-section and whose direction of protrusion alternates so that some of them are open upward and the others downward. Through the protruding parts can be slipped prestressing wires 5 of metal, which are before the commencement of the prestressing fastened with locking elements 6, such as suitable nuts, on one edge of the profile sheet 1. After this, the prestressing wire is pulled with a separate tensioning device on the other edge of the sheet in such a way that the wire stretches. The tensioning force is most advantageously about 30-50 kN (3-5 kp). After the wires have been tensioned, they are locked with locking elements 7, such as nuts, at the ends at which they were pulled. Thereupon the wire tries to contract to its original length and bends the sheet 1 slightly upward (Fig. 2). When after this a concrete casing is cast on the sheet, its weight straightens the sheet. By this means, the advantages mentioned above are attained and the construction of the base floor is improved in an advantageous way.
It is obvious to a person skilled in the art that the invention is not restricted to the embodiments described above, but can be varied within the scope of the following patent claims. Thus for instance the protruding parts 4 can be constructed in any thinkable way. The purpose is only to get the wire 5 easily slipped onto the underside of the sheet 1.

Claims

1. Method for making a casting on a profile sheet (i) used on roofs or floors and base floors, c h a r a c t e r i z e d by that before, during or after the casting the profile sheet (1) is prestressed by directing essentially onto the underside of the profile sheet a force that has a contractive effect on the profile sheet.
2. Method according to Claim 1, c h a r a c t e r i z e d by that the prestressing is effected with a prestressing wire (5) fitted on the underside of the profile sheet (1), which prestressing wire is before the commencement of the prestressing anchored at one end on one edge of the profile sheet,and on completion of the prestressing, in tightened condition, at the other end on the opposite edge of the profile sheet.
3. Method according to any of Claims 1 and 2, c h a r a c t e r i z e d by that the prestressing wire (5) is tensioned with a separate tensioning device, at a force of about 30-50 kN.
4. Profile sheet (1) for the application of a method according to Claim 1, which profile sheet is essentially trapezoidal in cross-section and has longitudinal lower and upper planes (2, 3), c h a r a c t e r i z e d by that on the longitudinal lower planes (2) of the profile sheet (1) are formed protruding parts (4) through which a metal wire (5), such as prestressing wire, is slipped.
5. Profile sheet according to Claim 4, c h a r a c t e r i z e d by that the protruding parts (4) are essentially triangular in cross-section, that they are arranged at essentially regular intervals, and that their direction of protrusion alternates so that some of them are open upward and the others downward.
PCT/FI1987/000105 1986-08-22 1987-08-19 Method for making a casting on a profile sheet, and profile sheet for the application of the method WO1988001330A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI863396 1986-08-22
FI863396A FI863396A (en) 1986-08-22 1986-08-22 FOERFARANDE FOER UTFOERING AV EN GJUTNING PAO EN PROFILSKIVA SAMT EN PROFILSKIVA, DAER FOERFARANDET TILLAEMPATS.

Publications (1)

Publication Number Publication Date
WO1988001330A1 true WO1988001330A1 (en) 1988-02-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1987/000105 WO1988001330A1 (en) 1986-08-22 1987-08-19 Method for making a casting on a profile sheet, and profile sheet for the application of the method

Country Status (3)

Country Link
AU (1) AU7859287A (en)
FI (1) FI863396A (en)
WO (1) WO1988001330A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474310A1 (en) * 1990-09-06 1992-03-11 Hollandsche Beton Groep N.V. Method for the production of a steel plate concrete floor
WO2003100184A1 (en) * 2002-05-27 2003-12-04 University Of Western Sydney Reinforced structural steel decking
KR20040018808A (en) * 2002-08-27 2004-03-04 전찬진 Deck panel of reinforced concrete slab
WO2004101906A1 (en) * 2003-05-13 2004-11-25 Offshield Limited Flooring
WO2007110136A1 (en) * 2006-03-29 2007-10-04 Corus Uk Ltd. Method for producing a composite floor deck, and kit of parts therefor
WO2007141380A1 (en) * 2006-06-02 2007-12-13 Rautaruukki Oyj Intermediate floor
CN100356014C (en) * 2003-05-13 2007-12-19 奥弗西尔德有限公司 Flooring
WO2008152197A1 (en) * 2007-06-13 2008-12-18 Rautaruukki Oyj Profile plate and method of manufacturing the same
KR101106699B1 (en) * 2011-05-03 2012-01-18 (주)에이비엠그린텍 Structure of reinforced deck plate for roof
RU2734511C1 (en) * 2020-05-26 2020-10-19 Сергей Михайлович Анпилов Method of erecting large-span ceilings and coatings
RU2767308C1 (en) * 2021-04-13 2022-03-17 Сергей Михайлович Анпилов Nuclear power plant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH469883A (en) * 1961-12-22 1969-03-15 Reising Wolfgang Panel-shaped construction element for the production of permanent or permanent formwork
US3712010A (en) * 1970-08-17 1973-01-23 Univ Iowa State Res Found Prestressed metal and concrete composite structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH469883A (en) * 1961-12-22 1969-03-15 Reising Wolfgang Panel-shaped construction element for the production of permanent or permanent formwork
US3712010A (en) * 1970-08-17 1973-01-23 Univ Iowa State Res Found Prestressed metal and concrete composite structure

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474310A1 (en) * 1990-09-06 1992-03-11 Hollandsche Beton Groep N.V. Method for the production of a steel plate concrete floor
WO2003100184A1 (en) * 2002-05-27 2003-12-04 University Of Western Sydney Reinforced structural steel decking
AU2003229379B2 (en) * 2002-05-27 2009-05-07 University Of Western Sydney Reinforced structural steel decking
KR20040018808A (en) * 2002-08-27 2004-03-04 전찬진 Deck panel of reinforced concrete slab
CN100356014C (en) * 2003-05-13 2007-12-19 奥弗西尔德有限公司 Flooring
WO2004101906A1 (en) * 2003-05-13 2004-11-25 Offshield Limited Flooring
US7571580B2 (en) 2003-05-13 2009-08-11 Offshield Limited Flooring
AU2004239057B2 (en) * 2003-05-13 2010-01-21 Offshield Limited Flooring
WO2007110136A1 (en) * 2006-03-29 2007-10-04 Corus Uk Ltd. Method for producing a composite floor deck, and kit of parts therefor
WO2007141380A1 (en) * 2006-06-02 2007-12-13 Rautaruukki Oyj Intermediate floor
WO2008152197A1 (en) * 2007-06-13 2008-12-18 Rautaruukki Oyj Profile plate and method of manufacturing the same
KR101106699B1 (en) * 2011-05-03 2012-01-18 (주)에이비엠그린텍 Structure of reinforced deck plate for roof
RU2734511C1 (en) * 2020-05-26 2020-10-19 Сергей Михайлович Анпилов Method of erecting large-span ceilings and coatings
RU2767308C1 (en) * 2021-04-13 2022-03-17 Сергей Михайлович Анпилов Nuclear power plant

Also Published As

Publication number Publication date
FI863396A0 (en) 1986-08-22
FI863396A (en) 1988-02-23
AU7859287A (en) 1988-03-08

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