Abstract:
Se describe un método para construir un piso suspendido, en que una pluralidad de conjuntos de armazon (10), que forman vigas, se colocan en un alineamiento substancialmente paralelo, estos conjuntos de armazon, que forman vigas, están soportados en conjuntos de soporte (26) sobre una base de soporte (60) en equilibrio estable, una pluralidad de conjuntos de armazon (54) que forman pisos, se colocan entre los conjuntos de armazon, que forman vigas, para su soporte ahí, se vacía concreto (56) dentro de los conjuntos de armazon, el concreto se deja fraguar y los conjuntos de armazon se remueven desde el concreto fraguado para su reutilizacion.
Abstract:
Die rasterartig angeordneten Säulen (1) sind mit einem Stahlmantel (14) versehen und in ihrem Hohlraum mit Beton (13) gefüllt. Direkt übereinanderliegende Säulen sind durch eine Verbindungsmuffe (3) verbunden, die unten auf einem Auflagering (2) der Säule (1) aufliegt. Horizontalträger (5) werden von den Säulen (1) und der Verbindungsmuffe (3) durchdrungen. Die Horizontalträger (5) enthalten Winkelei sen (4), auf deren Horizontalschultern (4a) Decken- Profilbleche (10) mit Nuten aufliegen. An den Enden der Horizontalträger sind Z-förmige Profilschienen (9) starr befe stigt, die als Auflager für quer zu den ersten verlaufende zweite Decken-Profilbleche (11) dienen. Die Decken- Profilbleche (10, 11) werden durch eine Ortsbetonschicht überdeckt. Eine solche Trägerdecke hat eine im Vergleich zu ihrem Gewicht relativ hohe Tragfähigkeit und zudem bilden die Decken-Profilbleche (10, 11) eine verlorene Schalung.
Abstract:
A number of module molds (1,9) comprising a web (2,2'), a plurality of reinforcing ribs (5,5'), an insert piece (7) at one end of the web, a deposit margin (6) at the other end of the web, and abutments (8,8') at both side ends of the web, are arranged in line and in file along beams (11) and concrete is placed over the arranged molds.
Abstract:
An arrangement for use when casting concrete floors, particularly in locales having pillars, floor drains or the like. The arrangement includes straight concrete beams (1) and sections of ring-like concrete beams (8), which are intended to be incorporated in the resultant floor. The ring sections are arranged to co-act in order to completely encircle a free-standing pillar or the like, or to partially encircle a pillar located adjacent a wall. The sections are provided with a lower support flange (10) intended to support the ends of the straight beams. The height of the straight beams (1) is so selected in relation to the height of the ring-like beams (8) that when the straight beams rest on the aforementioned support flange, the upper surfaces of both kinds of beams are located in a common plane, on a level with the resultant floor surface, in order to be able to serve as support paths for concrete smoothing devices. The application also relates to a method for manufacturing beams intended for use with the arrangement.
Abstract:
A ceiling structure with a reinforced cast concrete ceiling slab (1), a plurality of cast concrete stiffening ribs (2) reinforced by lattice beams (7) and filling components (3) fitted between the stiffening ribs, each of which has a self-supporting three-dimensional lattice body having an upper (13) and a lower lattice (14), web wires (19) binding the lattices (13, 14) together at predetermined intervals and a displacement body (20) irremovably secured by the web wires (19) between the lattices, in which the displacement body (20) of the filling component lies flush against a cast-on base strip (12) in a lattice beam (7) having such a strip or, in a lattice beam cast in situ, its underside lies flush against the side-members of a shuttering plate.
Abstract:
A building structure comprises two parallel plates (2, 3) attached to means (4) therebetween forming channels (5, 6). Some of these channels are filled with concrete so that concrete ribs (10, 11) are formed, which preferably are provided with reinforcement (12). This building structure will in many cases be provided with a cover (9) of concrete. In order to form a connection between the cover and the concrete ribs (10, 11), holes (13) are made in one of the plates (3) in order for a monolithic connection to be formed between the ribs and the concrete. A shear force reinforcement (15) may be placed into the ribs (10) through the holes (13). The plates (2, 3) with the channel forming means (4) constitute a prefabricated element (1) which is brought to the building site without holes (13) in said one plate. However, the plate is provided with hole markings (8), but the holes are only made at the building site when it has been determined which of the channels (5) are to be filled with concrete in the particular use at hand. Since the plate (3) in this manner is not provided with more holes than necessary, the plate (3) retains sufficient strength in order for the element (1) to have sufficient rigidity and strength to withstand traffic loads and the weight of the concrete before it has hardened.
Abstract:
Arrangement for casting concrete floors against a hardened base with the aid of surface vibrators for levelling and vibrating the concrete. The arrangement consists of screed guides for these surface vibrators. The screed guides are designed in such a way that their cross-section is I-shaped. The upper horizontal surface serves as a slide face for surface vibrators (1). The lower horizontal surface series as a support against the base material (2). The beam web is provided with holes for dowels or other connecting devices (4). The beam web is also provided with brackets which can carry the reinforcement material for the concrete (3). The invention also includes reinforcing the above-mentioned beams by means of welded mesh reinforcement of metal and/or glass fibres. The latter can, but need not necessarily be, of alkali-resistent glass. The invention also embraces a method for using the above mentioned arrangement. This method entails using the beams as permanent formwork, i.e. the beam is not removed after the concrete has hardened.
Abstract:
The invention relates to a method in concreting a floor structure slab (10) wherein the lower side of the floor structure slab is concreted against a heat and sound insulating rigid panel (11) provided as a formwork element, which is allowed to remain at the lower side of the floor structure slab after setting of the concrete. The invention also relates to an intermediate floor structure having a floor structure slab (10) of concrete with underfloor heating elements (13) embedded therein, a heat and sound insulation panel (11) being provided at the lower side of the slab.
Abstract:
A method of constructing a suspended floor is described in which a plurality of beam-forming formwork assemblies (10) are located in substantially parallel alignment, the beam-forming formwork assemblies are supported in support assemblies (26) on a support base (60) in stable equilibrium, a plurality of floor-forming formwork assemblies (54) are located between the beam-forming formwork assemblies for support thereon, concrete (56) is poured in said formwork assemblies, the concrete is allowed to set, and the formwork assemblies are removed from the set concrete for re-use.