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Formwork mechanism for casting and moulding concrete which comprises a coffer with a sheet and four plates disposed on the perimeter of the sheet

a technology of concrete and formwork, which is applied in the direction of form/shuttering/falseworks, forms/shuttering/falseworks, and building parts. it can solve the problems of increasing the weight changing the thickness of the structural element to be hardened, and the set-up of the formwork system that does not permit the formation of reticular slab coffers. it achieves the effect of increasing the thickness of the slab

Pending Publication Date: 2020-01-16
CLARO CARRASCAL DOMINGO DE GUZMAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a mechanism for constructing formworks for casting concrete. It includes a coffer with a sheet and four plates around the perimeter of the sheet. Each plate has holes on its front face. Structural elements connected to one of the plates by fixing means are also included. These fixing means pass through the holes and side perforations. The structural elements can be beams, T-beams, or combinations of these. The invention also provides various coffers interconnected with the structural elements for creating formworks for flat and curved reticular slabs with different thicknesses near the beams. The technical effects of the invention allow for improved formwork construction and enable the creation of stronger and more stable concrete structures.

Problems solved by technology

However, the possible setups of the formwork system do not permit the formation of coffers for the setting of reticular slabs.
In addition, aligners must be used for the panels to form a flat wall, which increases the weight of the formwork system.
On the other hand, although the spacers prevent the plates from moving outwards, due to the pressure exerted by the concrete, they do not prevent the plates from moving towards the concrete when the nuts are tightened, which would change the thickness of the structural element to be hardened.
Therefore, it is understood that prior art does not disclose a formwork mechanism easy to install, transport and handle, and that adapts to molding and setting of reticular slabs.

Method used

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  • Formwork mechanism for casting and moulding concrete which comprises a coffer with a sheet and four plates disposed on the perimeter of the sheet
  • Formwork mechanism for casting and moulding concrete which comprises a coffer with a sheet and four plates disposed on the perimeter of the sheet
  • Formwork mechanism for casting and moulding concrete which comprises a coffer with a sheet and four plates disposed on the perimeter of the sheet

Examples

Experimental program
Comparison scheme
Effect test

example 1

Coffer

[0383]A straight coffer (1) was designed and built according to the following features:[0384]four plates (3) with the following features:[0385]length: 100 cm;[0386]height: 50 cm;[0387]thickness of punctured tabs (6): 3.18 mm;[0388]diameter of the holes on the punctured tabs (6): 11.11 mm;[0389]material: ASTM A36 carbon steel sheet of ⅛″ (3.18 mm);[0390]two diagonal ribs (49);[0391]three stiffening profiles (48) arranged vertically, the stiffening profiles (48) located near the punctured tabs (6) on the sides are separated from these 10 mm; the other stiffening profile (48) is located in the center of the plate (3);[0392]holes (5) of 17 mm diameter that cross the plate (3) and stiffening profiles[0393](48);[0394]sheet type (2): convex;[0395]sheet height (2): 200 mm;[0396]curvature radius: 350 mm;[0397]base shape: square having 100 cm sides;[0398]four corner profiles (11) with the following dimensions:[0399]height: 50 cm[0400]film thickness: 8 mm[0401]length of truncated sides: ...

example 2

Coffer

[0405]An inclined coffer (1) with the following features was designed and constructed[0406]four plates (3) with the following features:[0407]length: 100 cm;[0408]height: 50 cm;[0409]thickness of punctured tabs (6): 3.18 mm;[0410]diameter of the holes on the punctured tabs (6): 11.11 mm;[0411]material: ASTM A36 carbon steel sheet of ⅛″ (3.18 mm);[0412]three stiffening profiles (48) arranged vertically, the stiffening profiles (48) located near the punctured tabs (6) on the sides are separated from these 10 mm; the other stiffening profile (48) is located in the center of the plate (3);[0413]holes (5) of 17 mm diameter that cross the plate (3) and stiffening profiles (48);[0414]sheet type (2): convex;[0415]sheet height (2): 200 mm;[0416]curvature radius: 350 mm;[0417]base shape: square having 100 cm sides;[0418]angle of punctured tabs (17): 90.14° to horizontal;[0419]four inclined corner profiles (11) with the following dimensions:[0420]height: 500 cm[0421]film thickness: 8 mm[0...

example 3

for Reticular Slab

[0427]A formwork for a reticular slab was designed and built (hereinafter slab formwork). The slab formwork is rectangular and rests on four structural columns (67) of concrete interconnected by concrete structural beams (68).

[0428]The coffers (1) on the slab formwork corners are L-type coffers (1) with the following features:[0429]maximum width and length: 100 cm;[0430]maximum height: 70 cm;[0431]a lid (53) with the following features:[0432]height: 200 mm;[0433]curvature radius of the rounded lateral faces: 350 mm;[0434]material: phenolic wood;[0435]base shape: square having 100 cm sides with a rectangular cut (54) square having 50 cm sides;[0436]two external L-plates (55) with the following features:[0437]panels width: a panel 30 cm wide and another 60 cm wide;[0438]panel height: 50 cm[0439]material: ASTM A36 carbon steel sheet of ⅛″ (3.18 mm);[0440]thickness of punctured tabs (17): 3.18 mm;[0441]diameter of holes on the punctured tabs (7): 11.11 mm; and[0442]dia...

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Abstract

The present invention corresponds to a formwork mechanism for casting and molding concrete, comprising a coffer having a sheet and four plates arranged around the sheet perimeter. Each plate has holes arranged on its front face. Also, the formwork mechanism includes a structural element, connected to one of the plates by fixing means. On the other hand, the structural element has lateral perforations that are aligned with the holes of one of the coffer plates. Fixing means pass through the holes and side holes. The structural element may be a beam, a three or four-beam T, and combinations thereof. On the other hand, using several coffers interconnected with structural elements, formworks are constructed for casting flat reticular slabs; and also for curved reticular slabs with greater slab thickness near the beams supporting the slabs in comparison to the span of the slabs.

Description

FIELD OF THE INVENTION[0001]The present invention relates to formwork structures and mechanisms for casting and molding of concrete, particularly with formworks for casting and molding of reticular slabs.PRIOR ART DESCRIPTION[0002]Prior art discloses formwork systems for molded concrete structures, such as the system disclosed in U.S. Pat. No. 9,068,363 B2.[0003]U.S. Pat. No. 9,068,363 B2 discloses a metal formwork system for molded concrete structures. The system comprises a metal panel, and connection accessories such as an adjustable corner, a right angle laminated profile, a profile with welded pins, plates, spacers, aligners, liner holders and pins (e.g. wedge pin). The accessories allow different forms to be formed with the panels. Each panel has perforations in which the accessories are connected. In the flat part of the panels there are perforations in which spacers are connected graduating the distance between two plates facing each other; each spacer has a rod with a threa...

Claims

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Application Information

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IPC IPC(8): E04G11/46E04G9/10E04G11/08E04G17/00E04G17/04E04B1/16E04B1/32
CPCE04G11/08E04G11/46E04G17/001E04B1/3205E04B1/166E04B2001/3294E04G9/10E04G17/042E04G17/14E04G9/02E04G11/36E04G11/38E04G11/40E04B5/326E04G21/26E04G11/48E04G13/04
Inventor CLARO CARRASCAL, DOMINGO DE GUZMAN
Owner CLARO CARRASCAL DOMINGO DE GUZMAN