SU850844A1 - Method of erecting monolithic structures in pneumatic form - Google Patents

Description

(54) METHOD OF USING MONOLITHIC STRUCTURES IN PNEUMATIC FORMWORK

The invention relates to the construction and can be used for the construction of monolithic structures for various purposes. There is a method of erecting structures in pneumatic formwork, which includes laying and fixing the formwork on the foundation, attaching petals above the formwork corresponding to the pattern of sweep of the structure being erected, laying the concrete mix and supplying air to the pneumatic formwork 1. The disadvantage of this method is the high complexity of its implementation the duration of the seal of numerous joints between the petals. The closest to the proposed technical essence and the achieved result is a method of erecting monolithic structures in a pneumatic formwork, including fixing the pneumatic deck on a horizontal base, concreting the concrete, keeping the concrete to a set strength, laying the concrete mix on the pneumatic deck, lifting the pneumatic deck to the design position, setting walling up to the design position and the subsequent sealing of the joints 2. However, this method of construction also requires considerable labor its implementation. The purpose of the invention is to reduce labor costs during the construction of buildings. The goal is achieved by the fact that in the method of building myolithic structures in pneumatic formwork, including fixing the pneumatic deck on a horizontal base, concrete walls, holding the concrete to a set strength, laying the concrete mix on the pneumatic deck, lifting the pneumatic deck to the design position, lifting the walls to the design position and the subsequent sealing of the joints, after lifting the wall to the pylevmoopal and to the design position, is lifted by lifting mechanisms, highlighting the teachings adjacent to them The walls of the roof of the walls are torn out by the pneumatic demolition, sharnirto attach the bottom of the walls to the foundations, after which the walls are disconnected from the lifting mechanisms and leveled by changing the pressure in the pneumatic demoulding. In this case, the angle of inclination to the horizontal of the suspended portions of the vault is chosen to be no more than 50 °.

FIG. Figure 1 shows the pneumatic formwork before laying the concrete mix on it; in fig. 2 - the same, after the end of the inflation of the perforation deck; Fig. 3 - the same, after the walls are raised and adjacent to them.

sections of the vault with lifting mechanisms; in fig. 4 - the same, after the final fixation of the walls and disconnection of the lifting mechanisms (design position)

Reinforced concrete walls 3 are made on the soft, non-hollow, cylindrical foam-fillet 1 attached to the base with fastening elements 2, concrete walls 3 are laid and the concrete mixture is flexible and the reinforcement is flexible in the middle part 4. These elements are located above the foundations 5. The ha 6 of the lifting mechanism is connected to the wall, the bottom of the walls 3 is attached to the foundations 5 by means of fasteners 7. The portions of the roof 8, adjacent to the walls 3, hang over the pneumatic wall 1 on the walls 3 and in the middle part of the roof, backed by the pneumatic wall 1.

Monolithic reinforced concrete structures are erected as follows.

Initially, a soft, non-compressed cylindrical pneumatic form 1 attached to the base with the help of mounting devices 2, on top of layers of the area, insulation and waterproofing, reinforced concrete walls 3 are concreted. Reinforced concrete walls 3 are maintained until the required strength is established. The reinforcement of the middle section is connected to the reinforcement of the walls, after which the concrete mixture is placed in the middle section 4. Before the concrete mix begins to start, air is pressurized into the pneumatic deck, it is inflated, the middle part 4 is bent and the walls 3 are reinforced to the foundations S, and the walls, due to their long length, assume an inclined position and cannot hang vertically.

Then, the lifting parts of the 6 lifting mechanisms are attached to the upper part of the walls 3, and with their help they lift the walls and adjacent to them parts of the roof 8, bringing the foam to a vertical position. The portions of the molded arch 8, adjacent to the walls, podsohtat between the walls and the middle portion of the arch above the pneumatic formwork 1.

The angle of inclination of the portions of the roof 8 to the metasoital is chosen such that it is possible to slip concrete from the outer protective layer. As research has shown, the concrete mixture does not slip from the outer protective layer.

formable shell, if its angle of inclination to the horizon is less than or equal to 50 °.

The bottoms of the walls 3 are attached to the foundations 5 by means of fasteners 7. The fasteners 7 allow the walls 3 to rotate relative to the foundations 5, but exclude mixing both vertically and horizontally. The flexible rods 6 are disconnected from the walls 3, after which the walls 3 are returned to the vertical position, for which purpose the pressure in the pneumatic wall is adjusted accordingly.

The arch can be erected without cladding, insulation and waterproofing performed by this method before concreting the walls and the middle section. In this case, under the reinforced concrete shell, before installation of the reinforcement, lining mats are put; it is a pity1, and artler film or paper.

The economic efficiency of labor is estimated by reducing labor costs by eliminating the re-plastering of steep sections of the roof and by reducing useless areas and useless building volumes.

Claims (2)

1.Sposob erecting monolithic structures in pneumatic formwork comprising fastening inflated forms on a horizontal base, concrete walls, maintaining the concrete to set zadashyuy strength, laying the mixture on FHT ioy pievmoopalubku, inflated forms a rise in the design position, Ack g vanie walls to the project position and terminations nocneuytoaym The joints, characterized in that, in order to reduce labor costs during the erection of structures, after lifting the plasterboards to the design position, walls are fed with lifting mechanisms, odveshivayut the adjacent arch portions on the walls vpie pnevmoopalubkn, scharni Ya1o {n {N1kresh1 dissolved bottom walls ndamentam to 4, after which the wall is detached from lifting mechanisms and level by varying the pressure in the inflated forms. 2. A method of erecting monolithic structures according to claim 1, characterized in that the angle of inclination to the go {zoitali of the arch of the sections of the arch is chosen not more than 50 °. Sources of information, iqmHHTH into account when examining 1. USSR author's certificate number 383817, cl. E 04 G 11/04. 1971. 2. USSR author's certificate N 502103, zhl. E 04 B 7/08, 1972.