FR2480332A1 - Building construction using concrete components - has lightweight and hollow wall panels infilled on site with sound insulation - Google Patents

Abstract

The walls are made of inner and outer skin panels held together by stiffeners and all prefabricated at a permanent or temporary factory. The panels are infilled with RC cast in situ columns and with insulating concrete which maintains an acoustic mass. The RC slab ceiling and floor slab are thin and are supported on load bearing beams the space between the slabs being filled with sound insulating incompressible polystyrene. All doors, windows and recesses are preformed so that frames are not needed and secondary work can procede simulataneouly with the main work.

Description

DESCRIPTION
Process for the construction of buildings using concrete components from flat slabs of the floor slab type produced in the factory in series without the use of molds.

The process is applicable to the construction of structural elements (walls, facades, gables, slits, partitions, floors) regardless of the number of floors and allows the simultaneous execution of structural work and finishing work.

 In the current state of the art, the walls are made using molds. This system is expensive for the price of manufacturing molds, the trance carrying heavy elements and for the implementation which requires large lifting devices.

 The floors currently on the market are of three categories: type slabs, type joists and slabs, Nicols type with solid floor and ceiling.

The first two types of floor require for the implementation a quantity of manpower (M.O.) not less than the traditional system of the floor flows on the spot. In fact, any floor requires a three-day cycle: laying and shoring, reinforcement and formwork, laying, during which the workforce is always present.

 The third type of floor, easy to install, is too heavy and expensive from the factory.

Finally, no type of structural components solves the basic problem which is the reduction in the overall price of the T.C.E. (all trades). The second work components continue to be laid in an artisanal way with laborious development during the coordination meetings during the works. The savings made in perfecting the wall and floor components are not interesting because the said components come into the overall price only for the 20%.

 The method according to the invention makes it possible to avoid the above drawbacks and allows a reduction in the overall price T.C.E.

 The factory supplies the site with flat and smooth slabs on one side, cut to size according to a plan of hedging, which locates the reservations for electric pots, joinery and finishing equipment.

The slabs are made of B.A. (reinforced concrete) for the walls, prestressed for the floors. They are transported and stored flat on the site.

 The maximum dimension will be 2.5 x 6 t 7 meters. Their thickness of 4 or 6 centimeters. Their weight per square meter 100 t 150 kgs. The maximum size plates will be used for split walls and gables and for ceilings.

The plates of lower dimension could be used for the trumeaux, lighters and possibly for the floor slabs. Wall thickness slabs form the bay tables, the lost formwork of the lenses and the rectifiers.

 The B.A. slabs intended for the walls are lifted vertically and in order to form the lost formwork of an insulating white concrete wall and B.A. pillars. The split walls are, pending pouring, joined to the front walls by hooks.

 The walls thus obtained are insulating and acoustic for their mass.

No patching is necessary. The joints are finished with mortar.

The slabs intended for floors, prestressed for floors, in B.A. for ceilings are raised flat. The ceiling slab is suspended from the prestressed load-bearing beams and the floor slab is placed on neoprene cal. The shoring for the installation of the ceiling slab is removed after the attachment to the beams.

 A partial filling of sand insulates against air noise. The floating slab and the suspended ceiling limit impact noise.

An insulator ensures possible thermal insulation.

The floor tiles can be laid on the terrace with a slope. This avoids the screeds.

B.A. ears attached to the walls below the attic, can be used to support crossbowmen from traditional farms; They have simple custom cut pieces, planed and treated, bolted to concrete. The cost price per cubic meter will be much lower than the current price of the frame.

 The concrete pouring of the walls and the floor belt is poured after the floors have been laid (single pouring operation).

In the cavities of the walls and floors will be housed before pouring by labor / specialized, octopus equipment components for electricity and electric heating, minitube type for gas heating. The same applies to the installation of controlled ventilation, ducts, etc. The specialized M.O. will only intervene for the exercise of the equipment. The joinery will fit directly into the reserved bays.

 The method as described, eliminates the manufacture of molds for the walls, any shoring, reinforcement, concrete pouring for the floor, and any leveling and surfacing. M.0. is therefore reduced in all trades and so is the overall price of construction.

The construction thus produced is insulating and acoustic and complies with the various D.T.U. (uniform technical documents).

 The accompanying drawings (plate 1/1 represents a detail of the structure (plan view and two sections).

As shown, the structure includes; 1. Concrete panels 2. Rectifiers, 3. BA poured on site, 4. Insulating concrete poured on site, 5. Thresholds, 6. Assembly hooks, 7. BA ceiling slab, 8. Pre-stressed beams, 9. Floor slab, 10. Ceiling slab suspension hook, 11.

Possible insulation, 12. Sand, 13. Ear B.A. frame support, 14. Bays reservation, 15. Equipment reservations (electric or gas heaters and technical benches).

 The drawing for the abstract is an exploded assonometry of part of the structure. The reference numbers are the same as in sheet 1/1.

 The process which is the subject of the invention, taking into account that the components.

basic are slabs currently produced by many factories, is already naturally on the industrial level.

 A competitive manufacturing price may be established by competition between the various producers.

Claims (1)

CLAIM  ì. çtructure of construction by concrete components characterized by the fact that from thin panels or slabs manufactured in a stable or fairground factory, walls can be made  and floors. The structure includes: Concrete panels for azures (1) - lifters (2) - pillars B.A. cast on site (3) - Insulating concrete (4) - Slab B.A. ceiling (7) - Support beams (8) - Floor slab (9) Frame support ears (13) - Cabinet reservations (14) equipment reservations (15).  The insulating Breton (4) maintains the acoustic mass and replaces the doubling. The possible replacement of the exterior panels (1) of the walls with a recoverable formwork eliminates the visible facade joints. The frame support ears (13) avoid the trusses.  The reservations for the bays (14) and equipment (15) allow the simultaneous execution of gorseuvre and second work and consequently reduction of manpower and the overall price of construction.  The supporting beams of the floor (8) avoid the shoring.  The void between the ceiling tile (7) and the floor tile (9) filled with incompressible polystirene gives rise to a floating floor tile which reduces footstep noise.  The ceiling slab (9) can be the dimensions of the part or cast on site on recoverable formwork suspended from the beams. (8). In both cases we avoid the apprentices joints of the ceiling.