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SE506735C2 - Collaboration joists, in which a sandwich element was used as a lost form - Google Patents

Collaboration joists, in which a sandwich element was used as a lost form

Info

Publication number
SE506735C2
SE506735C2 SE9402465A SE9402465A SE506735C2 SE 506735 C2 SE506735 C2 SE 506735C2 SE 9402465 A SE9402465 A SE 9402465A SE 9402465 A SE9402465 A SE 9402465A SE 506735 C2 SE506735 C2 SE 506735C2
Authority
SE
Sweden
Prior art keywords
sheet
collaborative
sub
concrete
projecting
Prior art date
Application number
SE9402465A
Other languages
Swedish (sv)
Other versions
SE9402465D0 (en
SE9402465L (en
Inventor
Jan Stroemberg
Original Assignee
Plannja Ab
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 Plannja Ab filed Critical Plannja Ab
Priority to SE9402465A priority Critical patent/SE506735C2/en
Publication of SE9402465D0 publication Critical patent/SE9402465D0/en
Priority to AU29942/95A priority patent/AU2994295A/en
Priority to PCT/SE1995/000756 priority patent/WO1996002711A1/en
Publication of SE9402465L publication Critical patent/SE9402465L/en
Priority to NO970121A priority patent/NO308144B1/en
Priority to DK199700035A priority patent/DK174207B1/en
Publication of SE506735C2 publication Critical patent/SE506735C2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The present invention relates to a composite floor structure which includes a permanent mould and concrete (90) cast thereon, wherein the mould is comprised of a plurality of sandwich elements (1). Each sandwich element (1) includes a top sheet (2), a core (3) and a bottom sheet (4). The bottom sheet (4) has a part (11) which projects out from the core (3) along the longitudinal side-edges of the sheet and the outwardly projecting part (11) includes means (13) for engagement with the cast concrete (90).

Description

506 735 2 10 15 20 25 30 35 alternativa utföringsformer av det uppfinningsenliga samverkansbjälklaget. 506 735 2 10 15 20 25 30 35 alternative embodiments of the cooperating floor according to the invention.

Uppfinningen innebär att man först bygger upp ett bjälklag av prefabricerade sandwichelement som tjänstgör som gjutform, samtidigt som sandwichelementen är utformade för att samverka med betongen så att ett idealt samverkansbjälklag uppnås. Sandwichelement är starka och styva för korttidslaster men för laster som varar i månader kryper emellertid elementets kärnmaterial så att sandwichelementen i sig är olämpliga som bjälklag.The invention means that one first builds up a floor of prefabricated sandwich elements that serve as a mold, at the same time as the sandwich elements are designed to cooperate with the concrete so that an ideal cooperative floor layer is achieved. Sandwich elements are strong and rigid for short-term loads, but for loads that last for months, however, the core material of the element creeps so that the sandwich elements themselves are unsuitable as floors.

Fig. 1 visar två intill varandra anordnade sandwichelement 1 vilka element 1 exempelvis är placerade ovanpå ett antal primärbalkar (ej visade) och är inbördes förbundna vid sina långsidokanter så att en plattform for gjutning bildas.Fig. 1 shows two adjacent sandwich elements 1 which elements 1 are for example placed on top of a number of primary beams (not shown) and are interconnected at their longitudinal side edges so that a platform for casting is formed.

Sandwichelementet 1, såsom exempelvis är prefabricerat i fabrik, uppvisar ett överark 2 av exempelvis metall- eller stålplåt, ett kärnparti 3 av ett lätt material sasom exempelvis expanderad polystyren, polyuretan eller mineralull, och ett underark 4 av exempelvis metall- eller stålplàt. Arken 2 och 4 är förbundna med kärnpartiet 3 genom exempelvis limning, sammansmältning eller vidhäftning.The sandwich element 1, as for example is prefabricated in a factory, has a topsheet 2 of, for example, metal or steel sheet, a core portion 3 of a light material such as expanded polystyrene, polyurethane or mineral wool, and a backsheet 4 of, for example, metal or steel sheet. The sheets 2 and 4 are connected to the core portion 3 by, for example, gluing, fusing or adhering.

Kärnpartiet 3 uppvisar utefter sina långsidokanter en underskärning 10. Underarket 4 uppvisar utefter sina långsidokanter ett utskjutande parti ll som avslutas med ett vinkelformigt ändparti 12 som för att erhålla bästa möjliga betongingrepp är försedda med ingreppsorgan i form av hål 13. Överarket 2 uppvisar utefter sina långsidokanter ett utskjutande parti 14 som är något nedåtvinklat och uppvisar ingreppsorgan i form av hål 15 för erhållande av bästa möjliga betongingrepp.The core portion 3 has a undercut along its long side edges 10. The backsheet 4 has along its long side edges a projecting portion 11 which terminates with an angular end portion 12 which in order to obtain the best possible concrete engagement is provided with engaging means in the form of holes 13. The top sheet 2 has longitudinal edges a projecting portion 14 which is slightly downwardly angled and has engaging means in the form of holes 15 for obtaining the best possible concrete engagement.

När sandwichelementen 1 uppläggs på primärbalkarna sker inbördes sammanbindning av elementen 1 genom en förbindningslist 20 som fastskruvas vid de utskjutande partierna 11 hos intill varandra belägna sandwichelement 1 såsom framgår av fig. l och 2. Genom att sandwichelementen via förbindningslisten eller direkt skruvas samman kommer 10 15 20 25 30 506 735 sanwichelementen att förenas till en styv skiva som stabiliserar hela stommen till dess att därefter pàgjuten betong uppnått tillräcklig styrka.When the sandwich elements 1 are laid on the primary beams, the elements 1 are interconnected by a connecting strip 20 which is screwed to the projecting portions 11 of adjacent sandwich elements 1 as shown in Figs. 1 and 2. By sandwiching the sandwich elements via the connecting strip or directly The sandwich elements to be joined to a rigid board which stabilizes the whole frame until subsequently cast concrete has reached sufficient strength.

De pà nyssnämnt sätt med varandra förbundna sandwichelementen l är efter utläggning av eventuell ytterligare armering (ej visad) klara för pàgjutning av betong 90 som utfyller spalten mellan kärnpartierna 3 hos intill varandra belägna sandwichelement 1 och en slutlig betongnivà 91 är indikerad med streck-prickad linje i fig. 1. utomordentligt effektivt samverkansbjälklag där betongen 90 I och med pàgjutningen av betongen 90 uppstàr ett är i ingrepp med de utskjutande partierna ll hos underarken 4 och där betongen 90 även är i ingrepp med de utskjutande partierna 14 hos överarken 2. Underarken upptar dragkrafter av böjmoment, den överliggande betongen upptar tryckkrafter av böjmoment, och betongen mellan sandwichelementen överför, eventuellt förstärkt av skjuvarmering, skjuvkrafter mellan underark och överliggande betong.The sandwich elements 1 interconnected in the manner just mentioned are, after laying any further reinforcement (not shown), ready for pouring concrete 90 which fills the gap between the core portions 3 of adjacent sandwich elements 1 and a final concrete level 91 is indicated by a dotted line. in Fig. 1. extremely effective cooperating floor where the concrete 90 arises as a result of the pouring of the concrete 90, one is in engagement with the projecting portions 11 of the sub-sheet 4 and where the concrete 90 also engages with the projecting portions 14 of the top sheet 2. The sub-sheet occupies tensile forces of bending moment, the overlying concrete absorbs compressive forces of bending moment, and the concrete between the sandwich elements transmits, possibly reinforced by shear reinforcement, shear forces between sub-sheets and overlying concrete.

Betongens 90 anliggning mot kärnpartiernas 3 underskärningar 10 medför att sättningstendenser hos kärnpartiet 3 motverkas.The abutment of the concrete 90 against the undercuts 10 of the core portions 3 means that settling tendencies of the core portion 3 are counteracted.

I fig. 3 visas en alternativ utföringsform där underarkens 4' utskjutande partier ll' är vinklade pà sa sätt att sammanskruvning av intill varandra anordnade sandwichelement l' kan ske utan användning av separat förbindningslist. Även i denna utföringsform är de och 14' ingreppsorgan i form av häl 13' och l5'. utskjutande partierna ll' försedda med Betongnivan 91 är markerad med streck-prickad linje.Fig. 3 shows an alternative embodiment where the projecting portions 11 'of the sub-sheets 4' are angled in such a way that screwing together of sandwich elements 1 'arranged next to each other can take place without the use of a separate connecting strip. Also in this embodiment they and 14 'are engaging means in the form of heels 13' and 15 '. the projecting portions ll 'provided with the Concrete Level 91 are marked with a dash-dotted line.

I fig. 4 visas en alternativ utföringsform där underarkens 4" utskjutande partier ll" är sa uppvinklade att betongingreppsorganen/hälen 13" är belägna ovanför överarkets 2" höjdnivà. Även överarkens 2" utskjutande partier 14" är sä uppvinklade att betongingreppsorganen/hälen 15" är belägna ovanför överarkets 2" höjdnivà. Denna utföringsform medger en tät anliggning mellan sandwichelementens 1" làngsidokanter, varvid sammanskruvning av intill varandra belägna 506 735 10 15 20 25 30 35 sandwichelement 1" exempelvis kan ske vid de utskjutande partierna ll" i ett område där dessa anligger mot varandra.Fig. 4 shows an alternative embodiment where the "projecting portions 11" of the backsheet 4 are so angled that the concrete engaging means / heel 13 "are located above the height level of the topsheet 2". The projecting portions 14 "of the topsheet 2" are also so angled that the concrete engaging means / heel 15 "are located above the height level of the topsheet 2". This embodiment allows a tight abutment between the longitudinal side edges of the sandwich elements 1 ", whereby screwing together of adjacent 506 735 10 15 sandwich elements 1" can take place, for example, at the projecting portions 11 "in an area where they abut each other.

Betongnivàn 91 är markerad med streck-prickad linje.Concrete level 91 is marked with a dotted line.

Armeringsjärn 80 som sträcker sig genom hälen 13" är visade i figuren. Vid denna utföringsform upptas skjuvkrafterna mellan underark och pàgjuten betong av det uppvikta underarket.Reinforcing bars 80 extending through the heel 13 "are shown in the figure. In this embodiment, the shear forces between the backsheet and the cast concrete are absorbed by the folded backsheet.

Enligt uppfinningen uppnás ett idealt samverkansbjälklag där den ovanpàliggande betongen upptar tryckkrafter och underarket hos sandwichelementet upptar dragkrafter. Kärnpartiet tjänstgör i princip som en lätt sparkropp sà att lämplig bjälklagstjocklek med hänsyn till styvhet och styrka kan uppnàs utan att vikten blir onödigt stor.According to the invention, an ideal cooperating floor layer is achieved where the superimposed concrete absorbs compressive forces and the substrate of the sandwich element absorbs tensile forces. The core portion serves in principle as a light savings body so that a suitable floor thickness with regard to rigidity and strength can be achieved without the weight becoming unnecessarily large.

Det skall inses att man inom ramen för uppfinningsidén kan utelämna överarkets utskjutande partier och ingreppsorgan.It will be appreciated that within the scope of the inventive idea, the protruding portions and engaging means of the topsheet may be omitted.

Materialvariationer i sandwichelementets överark, kärnparti och underark utöver de tidigare nämnda materialexemplen är naturligtvis möjliga inom ramen för uppfinningen.Material variations in the top sheet, core portion and bottom sheet of the sandwich element in addition to the previously mentioned material examples are of course possible within the scope of the invention.

Det skall vidare inses att man inom ramen för uppfinningen naturligtvis kan variera utformningen av de utskjutande partierna bàde hos underarket och överarket. Även ingreppsorganens utformning kan naturligtvis varieras och de visade hälen kan exempelvis ersättas med tungor, flikar, Vidare bör nämnas att överarket kan uppvisa en embosseringar, omvikningar eller dylikt. profilering som ökar dess tryckkraftsupptagande förmàga i samband med betongpàgjutning. överarket kan också om man sà önskar uppvisa samverkansbefrämjande embosseringar över hela sin yta. Även underarket kan om man sà önskar uppvisa profileringar och embosseringar utöver vad som är exemplifierat i figurerna.It is further to be understood that within the scope of the invention it is of course possible to vary the design of the protruding portions of both the bottom sheet and the top sheet. The design of the engaging means can of course also be varied and the heel shown can for instance be replaced with tongues, flaps. Furthermore, it should be mentioned that the top sheet can have embossments, folds or the like. profiling that increases its compressive strength absorbing ability in connection with concrete pouring. The topsheet can also, if you so wish, have collaboration-promoting embossments over its entire surface. The sub-sheet can also, if desired, have profiling and embossing in addition to what is exemplified in the figures.

Det uppfinningsenliga samverkansbjälklaget kan naturligtvis vid behov ytterligare förstärkas genom applicering av armeringsjärn eller annan lämplig armering. 506 735 Uppfinningen är således inte begränsad till det visade och beskrivna utan ändringar och modifikationer är möjliga inom ramen för efterföljande patentkrav.The co-operative floor according to the invention can, of course, be further strengthened if necessary by the application of rebar or other suitable reinforcement. 506 735 The invention is thus not limited to what is shown and described, but changes and modifications are possible within the scope of the appended claims.

Claims (7)

soa 755 6 i. PATENTKRAVsoa 755 6 i. PATENT REQUIREMENTS 1. l. Samverkansbjälklag innefattande en permanent gjutform och en pa gjutformen pagjuten gjutmassa (90) , k ä n n e t e c k n a t av att gjutformen är uppbyggd av ett 5 antal sandwichelement (l;1';l") , som innefattar med varandra förbundna ett överark (2;2';2"), ett kärnparti (3;3';3") och ett underark (4;4';4”), varvid underarket (4;4';4") utefter sina langsidokanter uppvisar ett fran kärnpartiet (3;3',-3”) utskjutande parti (l1;ll';l1") som uppvisar organ (l3;13';l3”) 10 för samverkansingrepp med den pagjutna gjutmassan (90) .Collaborative flooring comprising a permanent mold and a molding compound (90) cast on the mold, characterized in that the mold is made up of a number of sandwich elements (1; 1 '; 1 "), which comprise an interconnected top sheet ( 2; 2 '; 2 "), a core portion (3; 3'; 3") and a sub-sheet (4; 4 '; 4 "), the sub-sheet (4; 4'; 4") having a longitudinal side edge the core portion (3; 3 ', - 3 ") projecting portion (l1; ll'; l1") having means (l3; 13 '; l3 ") for cooperating engagement with the pagjott casting mass (90). 2. . Samverkansbjälklag enligt krav 1, k ä n n e t e c k n a t av att överarket (2;2';2") utefter sina--langsidokanter uppvisar ett fran kärnpartiet (3;3';3") utskjutande parti (l4;14';l4”) och att det utskjutande partiet uppvisar organ 15 (l5;15';l5") för att ingreppgöra den pagjutna gjutmassan (90) .2.. Collaborative flooring according to Claim 1, characterized in that the topsheet (2; 2 '; 2 ") along its longitudinal edges has a portion projecting from the core portion (3; 3'; 3") (14; 14 '; 14 ") and that the protruding portion has means 15 (15; 15 '; 15 ") for engaging the cast casting mass (90). 3. Samverkansbjälklag enligt krav 1 eller 2, k ä n n e t e c k n a t av att underarken (4;4';4") hos intill varandra belägna sandwichelement (l;l';l") är inbördes förbundna medelst fästelement. 20Collaborative flooring according to Claim 1 or 2, characterized in that the sub-sheets (4; 4 '; 4 ") of adjacent sandwich elements (1; 1'; 1") are interconnected by means of fastening elements. 20 4. Samverkansbjälklag enligt nagot av krav 1-3, k ä n n e t e c k n a t av att kärnpartiet (3;3') vid sina langsidokanter uppvisar en underskärning (l0;10').Collaborative flooring according to one of Claims 1 to 3, characterized in that the core portion (3; 3 ') has an undercut at its longitudinal edge edges (10; 10'). 5. Samverkansbjälklag enligt nagot av krav 1-4, k ä n n e t e c k n a t av att underarkets (4;4') utskjutande 25 parti (l1;ll') är avslutat med ett vinkelformigt ändparti (l2;l2' ) .Collaborative flooring according to one of Claims 1 to 4, characterized in that the projecting portion (l1; ll ') projecting of the sub-sheet (4; 4') is terminated by an angular end portion (l2; l2 '). 6. Samverkansbjälklag enligt nagot av krav 1-5, k ä nn e t e c k n a t av att underarkets (4;4';4”á) ingreppsorgan utgöres av hal (l3;l3' ;l3”) . 30Collaborative flooring according to one of Claims 1 to 5, characterized in that the engaging means of the sub-sheet (4; 4 '; 4 "á) consist of slippery (l3; l3'; l3"). 30 7. Samverkansbjälklag enligt nagot av krav 2-6, k ä nn e t e c k n a t av att överarkets (2;2';2") ingreppsorgan utgöres av hal (l5;l5' ;l5").Collaborative joists according to any one of claims 2-6, characterized in that the engaging means of the topsheet (2; 2 '; 2 ") consist of slippery (l5; l5'; l5").
SE9402465A 1994-07-13 1994-07-13 Collaboration joists, in which a sandwich element was used as a lost form SE506735C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9402465A SE506735C2 (en) 1994-07-13 1994-07-13 Collaboration joists, in which a sandwich element was used as a lost form
AU29942/95A AU2994295A (en) 1994-07-13 1995-06-21 Deck with composite action
PCT/SE1995/000756 WO1996002711A1 (en) 1994-07-13 1995-06-21 Deck with composite action
NO970121A NO308144B1 (en) 1994-07-13 1997-01-10 Composite floor construction
DK199700035A DK174207B1 (en) 1994-07-13 1997-01-10 Tires with the effect of a composite construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402465A SE506735C2 (en) 1994-07-13 1994-07-13 Collaboration joists, in which a sandwich element was used as a lost form

Publications (3)

Publication Number Publication Date
SE9402465D0 SE9402465D0 (en) 1994-07-13
SE9402465L SE9402465L (en) 1996-01-14
SE506735C2 true SE506735C2 (en) 1998-02-02

Family

ID=20394714

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402465A SE506735C2 (en) 1994-07-13 1994-07-13 Collaboration joists, in which a sandwich element was used as a lost form

Country Status (5)

Country Link
AU (1) AU2994295A (en)
DK (1) DK174207B1 (en)
NO (1) NO308144B1 (en)
SE (1) SE506735C2 (en)
WO (1) WO1996002711A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9700996D0 (en) * 1996-05-30 1997-03-18 Plannja Ab Beam flooring cassette and collaboration flooring
AU782222B2 (en) * 2000-04-06 2005-07-14 Stramit Corporation Pty Limited Improved structural decking
NL1026388C2 (en) 2004-06-11 2005-12-15 O & P Res And Dev Method for manufacturing a building construction, as well as formwork therefor.
WO2007056833A1 (en) * 2005-11-21 2007-05-24 Bluescope Steel Limited Cast in situ concrete slab
WO2009010994A1 (en) * 2007-07-16 2009-01-22 Metecno S.P.A. Self-supporting panel for building floors, and floor resulting therefrom
CN104032741B (en) * 2014-06-30 2016-03-02 河北省水利工程局 The rapid constructing method of a kind of hydraulic engineering large volume temperature control
CN111851829A (en) * 2020-08-17 2020-10-30 天津竟盛新型建材有限公司 Prefabricated anti-cracking formwork, floor slab and cast-in-place formwork-free slab
CN112211197A (en) * 2020-11-11 2021-01-12 山东省水利科学研究院 Large-volume temperature control rapid construction method for hydraulic engineering

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256387B (en) * 1959-11-20 1967-12-14 Fond S Batiments Et Travaux Pu Solid ceiling
FR2098568A5 (en) * 1970-07-10 1972-03-10 Catesson Claude
DE2339638C3 (en) * 1973-08-04 1979-02-22 Walter Dr.-Ing. 6101 Rossdorf Sowa Sheet metal shuttering sheet used as reinforcement for a composite concrete ceiling
SE445569B (en) * 1983-01-03 1986-06-30 Dobel Ab CASSET ON CASTING OF BEAM LAY

Also Published As

Publication number Publication date
SE9402465D0 (en) 1994-07-13
WO1996002711A1 (en) 1996-02-01
NO308144B1 (en) 2000-07-31
NO970121D0 (en) 1997-01-10
SE9402465L (en) 1996-01-14
NO970121L (en) 1997-01-10
DK174207B1 (en) 2002-09-23
DK3597A (en) 1997-01-10
AU2994295A (en) 1996-02-16

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