NO129584B - - Google Patents
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- Publication number
- NO129584B NO129584B NO23769A NO23769A NO129584B NO 129584 B NO129584 B NO 129584B NO 23769 A NO23769 A NO 23769A NO 23769 A NO23769 A NO 23769A NO 129584 B NO129584 B NO 129584B
- Authority
- NO
- Norway
- Prior art keywords
- flanges
- support
- formwork
- concrete
- beams
- Prior art date
Links
- 238000009415 formwork Methods 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
- E04G11/46—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings of hat-like or trough-like shape encasing a rib or the section between two ribs or encasing one rib and its adjacent flat floor or ceiling section
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Description
Anordning for understøttelse av forskalingen Device for supporting the formwork
for støping av etasjeskillere av betong. for casting concrete floor dividers.
Foreliggende oppfinnelse vedrorer en anordning for understbttelse av forskalingen for stoping av etasjeskillere av.betong med bjelkeaktige forsterkningsribber eller lignende på undersiden, hvor der som forskaling anvendes formskall med omvendt U-formet tverrsnitt for tilveiebringelse av hulrommene mellom forsterkningsribbene og formskallenes nedadrettede flenser hviler i U-formede kanaler. The present invention relates to a device for supporting the formwork for stopping floor separators made of concrete with beam-like reinforcement ribs or the like on the underside, where formwork is used as formwork with an inverted U-shaped cross-section to provide the cavities between the reinforcement ribs and the downward-facing flanges of the formwork rest in the U- shaped channels.
Ved fremstilling av former for monolitiske betongkonstruksjoner, særlig bjelkelag, har man tidligere bl.a. anvendt formskall som i noen tilfelle har vært utfort i metall og i andre tilfelle av plast-materiale som er armert på passende måte, såsom med glassfibere. When producing forms for monolithic concrete constructions, especially beams, in the past, e.g. used mold shell which in some cases has been made of metal and in other cases of plastic material which is reinforced in a suitable way, such as with glass fibres.
Det har vært onskelig å gjore disse formskall så lette;'".å.-hånd-tere som mulig, særlig med; tanke på stablihg: og transport', hvorfor It has been desirable to make these form shells as easy to handle as possible, especially with regard to stability and transport, why
formskallene har vært utfort så tynnvegget som mulig. Vanligvis ut-fores formskallene med hvelvet tverrsnitt, hvilket som folge .av hvelv-virkningen gir formskallene'hoy bæreevne, trien samtidig gjor at flensene, såsom ved formskall med. omvendt.U-formet tverrsnitt,; lett vil the mold shells have been made as thin-walled as possible. Usually, the form shells are lined with a vaulted cross-section, which, as a result of the vaulting effect, gives the form shells a high load-bearing capacity, which at the same time means that the flanges, as in the case of form shells with reverse.U-shaped cross-section,; easy will
bli boyet under den istppte .betongmasseSv/trykk. be buoyed under the iced .concrete massSv/pressure.
For å soke å unngå dette ^tiar mari'"vært1 tvunget til å innsette tverrstag mellom ■ stotteflenséhé på hvert-formskall, men monteringen av sådanne stag har forårsaket 'både' ek'stra<:>'bésvær og vesentlig tids-spille som driftsokonomisk er blitt et problem. In order to avoid this, we have been forced to insert transverse braces between the support flanges on each form shell, but the installation of such braces has caused both extra trouble and significant time-wasting, which is operationally economical. has become a problem.
Det har også vært- foreslått å understotte formskallene ved å la flensene hvile i U-formede, kanaljern, men .heller.. ikke., dette, har eli-.. minert ulempene. It has also been suggested to support the form shells by letting the flanges rest in U-shaped, channel iron, but .neither.. not., this, has eli-.. eliminated the disadvantages.
Disse og andre ulemper eliminertes imidlertid ved hjelp av oppfinnelsen, hvis hovedtrekk består i at de U-formede kanalers oppad-, rettede flenser har en sådan hoyde at de formsluttende stotter fp.rm-skallenes flenser i disses mest kritiske sone for utboyning under virkningen åv- betongmassens sidetrykk. Hensiktsmessig' er' s totte f lensene utfort i ett stykke med.støttebjelken og over sin frie■del"utfort i ett stykke med partier som rager ut fra samme. However, these and other disadvantages were eliminated with the help of the invention, the main feature of which is that the upwardly directed flanges of the U-shaped channels have such a height that the form-closing supports fp.rm shells' flanges in their most critical zone for buckling under the action of - the lateral pressure of the concrete mass. Appropriately, the two flanges are extended in one piece with the support beam and over its free part are extended in one piece with parts projecting from the same.
Oppfinnelsen skal forklares nærmere i det folgende under henvis-ning til tegningene, hvis fig. 1 viser et perspektivriss av et eksempel på en formoppbygning ifolge oppfinnelsen for stoping av en mono-litisk etasjeskiller av betong med bjelkeaktige forsterkningsribber, fig. 2 viser i forstorret målestokk en formbunn nedlagt i formhul-rommet i'fig. 1, fig. 3 viser i perspektiv en utforelse ifolge oppfinnelsen med den av soyler understøttede bjelke sammensatt av et an-., tall langsgående' deler, hvorav noen kan f jernes for frigjoring. av -; ,,. flensene, fig. *+ viser' i perspektiv en utforelse ifolge oppfinnelsen,, hvor der anvendes stottef lenser. i form av separate f lensorganer an-ordnet med''mellomrom langs selve støttebjelken, fig. 5 er et sideriss av utforels.en ifolge' fig..■ ■'+., bg fig. 6 viser-en ytterligere utforelse av oppfinnelsen, hvor der 'som St-ottefienser anvendes metallprofiler ;som- er festet'-til s<e>lvé'<:s>'tbt-tébjelk<e>n.- ;Ved den på fig. 1 .viste utforelse anvendes et . antall i -snitt hvelv- .eller omvendt U-formede, formskall-10 som kan være utfort av metall, armert plast eller,.-lignende. Disse formskall er:vanligvis meget tynnvegget og deres,flenser 11 er derfor i og for seg. folsomme. for utbbyninger under trykket av den betongmasse .som stopes inn mellom tilgrensende par av flenser 11 på de med avstand i tverretningen ved siden av hverandre anbragte profilbjelker.10.- Flensene' 11 hviler med sine frie, langsgående endekanter. 12 mot stotter. eller bære- ■■ bjelker 13 som.ved denne utforelse hovedsakelig,utgjores av en plan formbunn, f.eks., et langt bord, som understbttes av sbyler lh eller liknende av kjent art. Ifolge oppfinnelsen lbper der langs form-bunnens 13 lengdekanter såkalte stotteflenser 15 som kan utgjore integrerende deler av selve bordet eller være limt sammen med dette eller eventuelt være festet på annen egnet måte.. Stotteflensene lbper ved denne utforelse helt ubrutte langs hele støttebjelken 13. ;Som det fremgår av fig. 1 ligger formskallen.es 10 flenser 11 med-i det minste sine for utbbyning mest kritiske soner an mot stbtte-flensene 15 som ved beregning kan gis et sådant treghetsmoment at der fåes en kompensasjon for formskallénes lave styrke. ;Ved utfbrelseseksetnplet ifolge fig. 1 er det forutsatt at flensene 1.1 skal komme til fullstendig anlegg mot stottef lensene .15 bare "ved den ifylté betongmasses trykk. Ujevnheter i disse flenser og eventuelt andre omstendigheter kan imidlertid ofte bidra til- at formskallene ikke blir opplagret nbyaktig. Derved kan det være onskelig på en enkel måte å kunne- foreta en korrigering av stillingene', således at delingen blir nbyaktig og samtidige flenser kommer til å ligge nbyaktig . an mo.t ' stottef lensene. ;Et forslag ifolge oppfinnelsen for å oppnå dette er vist på ;fig. 2,' hvor man gjenfinner sbylene l*f, støttebjelken 13, stotteflensene 15 og formskallets 10 flenser 11. Her er vist et kombinert avstands- og formbunnorgan som er presset ned mellom flensene 11. Dette organ kan f.eks. utgjores av et bord.16, hvis tverrdimensjon er således valgt at flensenes 11 frie lengdekanter trykkes fast til anlegg mot stotteflensene 15 ved at bordet presses ned mellom flensene til den viste bunnstilling. The invention will be explained in more detail in the following with reference to the drawings, if fig. 1 shows a perspective view of an example of a mold structure according to the invention for stopping a monolithic floor separator made of concrete with beam-like reinforcement ribs, fig. 2 shows on an enlarged scale a mold base laid down in the mold cavity in fig. 1, fig. 3 shows in perspective an embodiment according to the invention with the beam supported by pillars composed of a number of longitudinal parts, some of which can be removed for release. of -; ,,. the flanges, fig. *+ shows' in perspective an embodiment according to the invention, where support flanges are used. in the form of separate flange members arranged with 'spaces' along the support beam itself, fig. 5 is a side view of an embodiment according to fig. 6 shows a further embodiment of the invention, where metal profiles are used as St-otte fences, which are attached to the s<e>lvé'<:s>'tbt-tébjelk<e>n.- ;By the on fig. 1 .shown embodiment is used a . number of in -section vault- .or reverse U-shaped, shaped shell-10 which can be made of metal, reinforced plastic or similar. These form shells are: usually very thin-walled and their flanges 11 are therefore in and of themselves. sensible. for deflections under the pressure of the concrete mass which is stuffed between adjacent pairs of flanges 11 on the profile beams placed next to each other with a distance in the transverse direction. 10.- The flanges' 11 rest with their free, longitudinal end edges. 12 against supports. or support beams 13 which, in this embodiment, mainly consist of a flat shaped base, e.g. a long table, which is supported by beams lh or the like of a known kind. According to the invention, so-called support flanges 15 run along the longitudinal edges of the mold base 13, which can form integral parts of the table itself or be glued together with it or possibly be attached in another suitable way. In this embodiment, the support flanges run completely unbroken along the entire support beam 13; As can be seen from fig. 1, the form shell's 10 flanges 11 with at least their most critical zones for expansion are located against the stiffened flanges 15 which, by calculation, can be given such a moment of inertia that a compensation is obtained for the low strength of the form shells. ;In the case of the execution example according to fig. 1, it is assumed that the flanges 1.1 must come into complete contact with the support flanges .15 only "by the pressure of the filled concrete mass. However, unevenness in these flanges and possibly other circumstances can often contribute to the form shells not being stored closely. Thereby it can be desirable in a simple way to be able to make a correction of the positions, so that the division becomes close and simultaneous flanges come to lie close to the support flanges. A proposal according to the invention to achieve this is shown in ; Fig. 2,' where you can find the spigots 1*f, the support beam 13, the support flanges 15 and the flanges 11 of the mold shell 10. Here is shown a combined spacer and mold bottom member which is pressed down between the flanges 11. This member can, for example, be made of a table 16, whose transverse dimension is chosen so that the free longitudinal edges of the flanges 11 are pressed firmly into contact with the support flanges 15 by the table being pressed down between the flanges to the bottom position shown.
Anordningen vist på fig. 1 og 2 er i og for seg fullt tilfreds-stillende til å beherske de 'ved• be'tongstopning oppstående problemer, når det gjelder den tid et stopt betonghvelv må stå og herde. Hvis der ikke treffes spesielle forholdsregler kan det være nødvendig å la profilbjelkene■bli.stående i anvendelsesstilling i- en' betydelig tid. Dette innebærer at man må vente relativt lengde, innen man på nytt kan utnytte dé i og for seg forholdsvis kostbare profilbjelker for nye stopeoyemed. Det er imidlertid nødvendig at'selve'oppstottingen av den.stopte konstruksjon-holdes vedlike under hele den tid som er nodvendig og foreskreven. Fer å muliggjøre1at profilbjelkene skal bli tilgjengelige så hurtig som mulig,'kan man ihenhold tilfig. 3 bygge■opp" støttebjelken av flere langsgående, innbyrdes løsbare'deler. Således kan;støttebjelken være bygget opp av en midtre stottedel 17 som kan være fremstilt av'-sammensatte bord eller også utgjores av en firkantbjelke eller lignende; Til denne bjelke 17 festes særskilte bjelker. 18 og 19, f.eks. ved spikririg eller skruing, idet man ved utnyttelse av f.eks. Z-metallprofiler.20, 21 klemmer disse fast mellom den midtre „del 17,og -støttebjelkene 1-8 hhv.. 19. Etter ferdig-stoping og såsnart selve hvelvet har fått en tilstrekkelig bærende konsistens, kan man fjerne de to bjelker 18 og. 1.9 og ■ metallprof ilene The device shown in fig. 1 and 2 are, in and of themselves, fully satisfactory for controlling the problems arising from concrete filling, when it comes to the time a filled concrete vault has to stand and harden. If special precautions are not taken, it may be necessary to leave the profile beams in the application position for a considerable time. This means that you have to wait a relatively long time before you can again use the relatively expensive profile beams for new stopeyes. However, it is necessary that the 'property' itself of the 'stopped construction' is maintained for the entire time that is necessary and prescribed. In order to make it possible for the profile beams to become available as quickly as possible, one can according to fig. 3 build up the support beam from several longitudinal, mutually detachable parts. Thus, the support beam can be built up from a middle support part 17 which can be made of composite tables or also made of a square beam or the like; To this beam 17 is attached separate beams 18 and 19, e.g. by nailing or screwing, using e.g. Z-metal profiles 20, 21 to clamp these firmly between the middle part 17 and the support beams 1-8 respectively. 19. After finishing stuffing and as soon as the vault itself has acquired a sufficient load-bearing consistency, you can remove the two beams 18 and 1.9 and ■ the metal profiles
.20 og 21, mens den midtre del 17 fortsatt blir ,stående, oppstottet .20 and 21, while the middle part 17 will still be, standing, propped up
for å bære hele den stopte monolitiske konstruksjon. Etter at de los-bare deler er fjernet, kan flensene frigj.ores fra den stopte konstruksjon, hvoretter profilbjelkene igjen kan utnyttes på andre steder-for-- to carry the entire suspended monolithic construction. After the removable parts have been removed, the flanges can be released from the stopped construction, after which the profile beams can again be used in other places - for -
videre stopearbeider".' Fig. '+ viser et eksempel-,, hvor støttebjelken .består av to separate, langsgående deler 22 hhv.- 23 som-holdes, fra hinannen i et for tilfellet passende mellomrom 2k. Disse tp deler 22: og 23 er frem-., deles å regne som en bjelke da de forutsettes å være festet eller innstillbart festet til tverrgående stotteorganer 25. som direkte bæres av soylene 1^. Disse tverrgående organer 25 kan også, selv om. de på tegningen er vist korte, eventuelt være utfort lange, og felles for samtlige støttebjelker eller for .et antall støttebjelker i en formkonstruksjon for et bjelkelag. Fig.- '-i- viser også det. alternativ. at: de på fig..1, 2 og 3 viste-stotteflenser 15 hhv. 20 og 21 ikke nødvendigvis;behøver å. forlope ubrutt langs støttebjelkene, men som vist kan være delt i et antall separate stotteflensdeler, såsom de med 26 og 27 betegnede. Dette er også forholdet med selve støttebjelkene 22 og 23 som også eventuelt kan være delt i separate lengdeavsnitt. Dette fremgår av fig. 5 som i hovedsaken viser konstruksjonen ifolge fig. h i et sideriss. further stop work".' Fig. '+ shows an example where the support beam consists of two separate, longitudinal parts 22 and 23 which are held apart from each other in a space 2k suitable for the case. These tp parts 22: and 23 are forward-. , are considered to be a beam as they are assumed to be attached or adjustably attached to transverse support members 25 which are directly supported by the pillars 1. These transverse members 25 can also, although they are shown short in the drawing, possibly be extremely long , and common for all support beams or for a number of support beams in a form construction for a beam layer. Fig.-'-i- also shows the alternative that: the support flanges 15 and 3 shown in fig..1, 2 and 3 respectively. 20 and 21 do not necessarily; need to run unbroken along the support beams, but as shown can be divided into a number of separate support flange parts, such as those designated by 26 and 27. This is also the relationship with the support beams 22 and 23 themselves which can also optionally be divided in separate longitudinal sections.This can be seen from Fig. 5 as in the main case n shows the construction according to fig. h in a side view.
Ifolge oppfinnelsen foreligger en meget stor frihet med hensyn til oppbygningen av stotteflensene og som et foretrukket utforelses-eksempel viser fig. 6 en anordning ved hvilken der anvendes metallprofiler 28 og 29 som ved hjelp av skruer eller liknende 30 skrues According to the invention, there is a great deal of freedom with regard to the construction of the support flanges, and as a preferred embodiment example, fig. 6 a device in which metal profiles 28 and 29 are used which are screwed by means of screws or the like 30
fast f.eks. til en bordformet stbttebjelke 31. fixed e.g. to a table-shaped support beam 31.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE95968A SE327808B (en) | 1968-01-24 | 1968-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO129584B true NO129584B (en) | 1974-04-29 |
Family
ID=20257370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO23769A NO129584B (en) | 1968-01-24 | 1969-01-22 |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5011690B1 (en) |
BE (1) | BE727351A (en) |
CH (1) | CH494332A (en) |
DE (1) | DE1904171C3 (en) |
DK (1) | DK125486B (en) |
FR (1) | FR2000683A1 (en) |
GB (1) | GB1260744A (en) |
NL (1) | NL6901242A (en) |
NO (1) | NO129584B (en) |
SE (1) | SE327808B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114704028B (en) * | 2022-05-20 | 2023-07-18 | 中建八局发展建设有限公司 | Construction method for improving molding quality of bare concrete inverted trapezoid multi-ribbed beam |
-
1968
- 1968-01-24 SE SE95968A patent/SE327808B/xx unknown
-
1969
- 1969-01-22 NO NO23769A patent/NO129584B/no unknown
- 1969-01-23 DK DK37869A patent/DK125486B/en unknown
- 1969-01-24 FR FR6901398A patent/FR2000683A1/fr not_active Withdrawn
- 1969-01-24 NL NL6901242A patent/NL6901242A/xx unknown
- 1969-01-24 GB GB409469A patent/GB1260744A/en not_active Expired
- 1969-01-24 BE BE727351D patent/BE727351A/xx unknown
- 1969-01-24 CH CH111469A patent/CH494332A/en not_active IP Right Cessation
- 1969-01-24 DE DE19691904171 patent/DE1904171C3/en not_active Expired
- 1969-01-24 JP JP521269A patent/JPS5011690B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
NL6901242A (en) | 1969-07-28 |
BE727351A (en) | 1969-07-01 |
JPS5011690B1 (en) | 1975-05-06 |
SE327808B (en) | 1970-08-31 |
DE1904171C3 (en) | 1975-07-10 |
CH494332A (en) | 1970-07-31 |
DK125486B (en) | 1973-02-26 |
GB1260744A (en) | 1972-01-19 |
DE1904171A1 (en) | 1969-09-04 |
DE1904171B2 (en) | 1974-11-21 |
FR2000683A1 (en) | 1969-09-12 |
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