Sisteme de cofraje
 

MevaDec

 

Cofrajul pentru planşee

Sistemul de cofraje pentru planşee cu tact de 3 zile

Avantajul sistemului
componentele identice pot fi utilizate în situaţii diferite iar poziţia şi numărul popilor sunt întotdeauna indicate. Astfel, pot fi realizate în mod flexibil cele mai importante cerinţe ale obiectivului de construcţie:

  • plan
  • tipul de clădire / dimensiuni
  • grosimea planşeului
  • înălţimile de nivel
  • calitate ridicată a suprafeţei betonului etc.

Sistemul MevaDec este cel mai modern, flexibil şi profitabil cofraj de planşeu existent. Capul căzător face posibilă decofrarea timpurie şi montarea şi demontarea rapidă de ex.

  • număr mare de etaje
  • la aceeaşi geometrie a spaţiilor
  • la repetări foarte multe
  • tacturi rapide de betonare

S-a demonstrat faptul că este posibilă executarea tacturilor de betonare în 3 zile cu ajutorul sistemului MevaDec. 

 

Componentele sistemului

CARACTERISTICI

AVANTAJE

  • Panouri cu lăţimi de 40, 60, 80 cm şi lungimi de 80 şi 160 cm; rame din profile de aluminiu închise cu 2 compartimente; vopsire în câmp electrostatic, rezistentă la zgârieturi şi lovituri
  1. ajustare în pas (modul) de 20 cm – astfel, compensările sunt proiectate întotdeauna sub 20cm
  2. rigiditate sporită la torsiune, durată de viaţă sporită, greutate mică
  3. aderenţa scăzută a betonului reduce necesitatea de curăţare
  • grinzi principale şi secundare
  1. stabil şi rigid la torsiune, pentru schimb de direcţie continuu
  • popul cu cap căzător permite decofrarea timpurie
  1. reutilizarea la intervale mici reduce stocul de componente
 

3 metode într-un singur sistem

 CARACTERISTICI

AVANTAJE

Metoda cap căzător – grindă – panou (FTE)

  • sistem portant din grinzi principale şi popi cu capete căzătoare
  • cofrare fără decalaje şi mişcare liberă a elementelor pe grindă şi peste capetele căzătoare
  • schimbare fără decalaje a direcţiei de cofrare
  • indicare exactă a numărului de popi din sistem 


  1. cofrare şi decofrare uşoare, intervale scurte pentru indicaţii şi montare
  2. adaptare uşoară la geometria clădirilor
  3. siguranţă sporită, evitarea greşelilor de montaj, fără popi de susţinere suplimentari, mai puţine elemente de asamblare
  4. număr foarte mic de popi

Metoda grinzilor principale şi secundare (HN)

  • sistem portant din grinzi principale şi popi cu capete căzătoare
  • foaie cofrantă fixată liber pe grinzile principale şi secundare
  • cofrare fără decalaje şi mişcare liberă a grinzilor principale şi secundare

 

  1. adaptare flexibilă în cazul geometriilor neregulate ale planşeelor
  2. selectare liberă a foii cofrante
  3. număr foarte mic de popi

Metoda panourilor

  • fără grinzi principale şi secundare
  • numai 2 componente: panou şi pop cu cap pop pentru fixarea pe panou
  • panourile autoportante sunt sprijinite direct în punctul de intersecţie

 

  1. optim pentru planurile cu suprafeţe mici, unde decofrarea timpurie nu este avantajoasă
  2. logistică simplă
 

Decofrare timpurie

CARACTERISTICI

AVANTAJE

  • coborârea grinzilor secundare şi principale prin intermediul sistemului patentat cu cap căzător, cu siguranţă integrată a grinzii principale
  1. sigur, rapid, se evită greşelile de montaj
  2. grinzile sunt ghidate şi nu pot cădea
  3. fără risipă de material şi în cele mai sigure condiţii de muncă
  • înălţime de coborâre 19cm
  1. decofrare rapidă şi comodă
  • popii rămân nemişcaţi pentru sprijinire adiţională
  1. siguranţă la intervale foarte scurte de decofrare
  • panourile şi popii sunt refolosite rapid pentru un nou tact
  1. număr redus de componente pe şantier, logistică simplă, eficient din punct de vedere al costurilor
 

Capacitate portantă

CARACTERISTICI

AVANTAJE

  • planşee cu o grosime de până la 34 cm cu grindă principală 210
  • planşee cu o grosime de până la 44 cm cu grindă principală 160
  1. numărul redus de popi oferă spaţiu mare de lucru
  2. număr de popi per planşeu 0,27 buc./m², la grindă principală 210
  3. număr de popi per planşeu 0,35 buc./m², la  grindă principală 160
  4. intervale scurte de decofrare
 
 

MD-primary beam

MD-primary beamZoom
plastic-coated aluminium profile, MD-primary beams and MD-drop heads build the load-bearing system of MevaDec. The grooves are punched to reduce the cleaning effort.

MD-secondary beam

MD-secondary beamZoom
aluminium profile with plastic nailing strips on top and at the bottom, can be used in two ways: brown strip on top = secondary beam is hooked in between two primary beams (flush), grey strip on top = secondary beam is 21 mm below primary beams and panels.

MD-drop head

MD-drop headZoom
galvanized and partly powder-coated, with uplift protection. To lower MD-primary and secondary beams as well as panels by 19 cm, these can be stripped and re-used for the next pouring cycle. The slab remains supported by props with drop-heads (\"early stripping\"). Mounting to props: The MD-drop head is mounted to steel props (MD/ME) by means of two (2) bolts M12x35 and locking nuts M12, or to the aluminium outer tube of MEP-props by means of two (2) bolts M16x40 and locking nuts M16. The MD-drop head (pluggable) is attached to steel props (MD/ME) by means of a pin 14/90, or to the aluminium outer tube of MEP-props by means of a pin 14/135.

MD-prop head

MD-prop headZoom
galvanized and powder-coated, to support panels and secure them automatically against unhooking. The panels can be assembled from beneath or above the slab. Attachment to props: The MD-prop head is mounted to steel props (MD/ME) by means of two (2) bolts M12x35 and locking nuts M12, or with two (2) bolts M16x40 and locking nuts M16 to the aluminium outer tube of MEP-props. The pluggable MD-prop head is secured to steel props (MD/ME) with a pin 14/90, or with a pin 14/135 to the aluminium outer tube of MEP-props.

MD-panels

MD-panelsZoom
The frames of MD-panels are made of powder-coated, closed aluminium profiles, torsion-proof and easy to clean. Construction height 14 cm, frame profile width 22 mm. The MD-panels are standardly fitted with alkus GM 10 all-plastic forming face.

MD-compensation beam

MD-compensation beamZoom
plastic-coated aluminium profile with nailing strip, to support filler areas, suited for 21 mm forming face, for 27 mm forming face available upon request.

MD-assembly lock

MD-assembly lockZoom
galvanized, to tightly connect and align MD-panels and to clamp MD-compensation beams to MD-panels. Clamping length 4,4 cm.

MD-beam stiffener

MD-beam stiffenerZoom
galvanized, to secure cantilevering MD-primary beams against uplift (e.g. at slab edges).

MD-prop connector

MD-prop connectorZoom
galvanized, to support primary beams where no drop-head is used, e.g. for intermediate support, at walls and with cantilevering primary beams. Its integrated hammerhead screw permits attachment at the bottom of primary beams, the prop connector is provided with an eye to attach a tensioning chain for anchoring the slab formwork to the ground (e.g. at free slab edges).

MD-safety claw

MD-safety clawZoom
galvanized, to clamp planks to the bottom side of MD-primary beams. It also allows to attach a tripod to the aluminium outer tube of a MEP-prop.

MD-assembly stick 340

MD-assembly stick 340Zoom
galvanized, facilitates the assembly when applying the panel method, the panels are simply swung up and temporarily supported by the stick, we recommend to use two (2) sticks for a smooth assembly sequence, the stick has an adjustment range from 1,95-3,40 m.

MD-dismantling auxiliary

MD-dismantling auxiliaryZoom
galvanized, facilitates the stripping of MD-primary beams if these stick to the slab due to an increased concrete adhesion or inclined props.

Cleaning scraper

Cleaning scraperZoom
galvanized, with chisel. To clean the groove of MD-primary beams.

Spare blade for cleaning scraper

Spare blade for cleaning scraper
spare part (w/out illustration).

MD-cover profile 10

MD-cover profile 10Zoom
plastic cover, closes the gap between two MD-panels (only for drop-head-beam-panel [FTE] method). Length 1,50 m, packing unit: 10 pcs.

MD-support for guard-railing post / panel

MD-support for guard-railing post / panelZoom
galvanized, permits attachment of a guard-railing post at MD-panels and serves to form a stop end at the slab edge.

MD-support for guard-railing post / beam

MD-support for guard-railing post / beamZoom
galvanized, permits attachment of a guard-railing post at MD-primary and MD-secondary beams and serves to form a stop end at the slab edge.

Guard-railing post

Guard-railing postZoom
galvanized, is attached to the MD-support for panel or beam.

Railing clamp

Railing clampZoom
coated, can be clamped to all kind of beams or free slab edges. Railing height 100, h = 100 cm, clamping length 45 cm. Railing height 140, h = 140 cm, clamping length 50 cm.

MD-laser support

MD-laser supportZoom
aluminium, is attached at the bottom of MD-primary beams and allows levelling the slab formwork by one person.

Transport angle 14

Transport angle 14Zoom
galvanized, to stack and transport 5-12 MD-panels. Distance between holes 14 cm, max. load capacity = 10 kN per angle, for safety reasons consider 20 kN as maximum capacity for the whole stack. It is recommended to use two (2) foldable angles and two (2) angles of the rigid type for each stack.

Swivel-type castor 100

Swivel-type castor 100Zoom
Four (4) swivel-type castors 100 are required to move a stack of MevaDec- panels either with four (4) transport angles 14 or with the MD-transport rack. Load capacity per castor: 1 kN Total height of stack incl. castors: with transport angles 14 = 2,10 m with MD-transport rack = 2,45 m.

MD-piling rack on wheels

MD-piling rack on wheelsZoom
coated, stackable, to stack and transport MD-primary or MD-secondary beams. One piling rack can hold: 30 MD-primary beams 210 or 30 MD-primary beams 160 or 50 MD-secondary beams 160.

MD-transport rack

MD-transport rackZoom
galvanized, to stack and transport up to 14 MD-panels 160 x 80 cm. Two (2) transport racks can be stacked one upon the other (length/width/height: 175x82x232 cm).

ME-prop

ME-propZoom
galvanized, complying with the European standard EN 1065 (class E). The adm. load capacity is 30 kN at all extensions. Depending on their application with MEVA systems the load capacity varies (see Technical Instruction Manual for MevaDec).

MEP-prop with SAS

MEP-prop with SASZoom
The MEP-prop is a combination of steel inner tube and aluminium outer tube with T-groove to attach reinforcing frames. The SAS quick-lowering system allows the stress in the prop to be released with one strike of a hammer. After stripping the prop automatically resets and locks in the original position. According to the European Standard EN 1065 /class E) the props have a load capacity of: MEP 300: 40 kN independent from the assembly position. MEP 450: 20 kN independent from the assembly position, if assembled with the inner tube downwards the load capacity increases to 30 kN. Depending on their application the load capacity varies (refer to Technical Instruction Manual for MevaDec).

MD-prop

MD-propZoom
galvanized, complying with the European standard EN 1065 (class E). The adm. load capacity is 20 kN at all extensions. Depending on their application with MEVA systems the load capacity varies (see Technical Instruction Manual for MevaDec).

Forked prop head

Forked prop headZoom
galvanized, the forked prop head can be used instead of a drop-head to support a MD-primary beam at the beginning or the end of a beam row. The forked prop head 20 is also applied with formwork girders H20, the forked prop head 16 with MD-beams and formwork girders H16.

Pins

PinsZoom
galvanized, to attach MD-drop heads, MD-prop heads, forked prop heads etc. to props. The pin 14/90 is used if connected to steel tubes (up to Ø 63 mm), the pin 14/135, if connected to aluminium outer tube of MEP-props or -extensions.

Tripod

TripodZoom
galvanized, auxiliary to stabilize props of Ø 48-80 mm. The revolving legs of the tripod allow using it right in the middle of a room as well as along the wall or in a corner. It is attached to the aluminium profile of MEP props by means of a MD-safety claw.

Accessories for attaching

Accessories for attaching
to attach MD-prop heads or MD-drop heads to the props (w/out illustration).
 
 
 © MEVA Schalungs-Systeme GmbH