SU1430481A1 - Apparatus for erecting solid skeleton of buildings and structures - Google Patents

Abstract

The invention relates to construction and is intended for the construction of a vane frame of buildings and structures by the method of lifting. The purpose of the invention is to reduce the time required to erect a building, reduce material consumption and increase the strength of concrete structures. The device is. Hold jack 1, which can be stepper with a small piston stroke, or telescopic. In the upper part of the jack 1 there is a pressure chamber 3, made in the form of a holder 5, encompassing a push rod, and a rod 4 of a jack. Along the upper edge of the casing 5 of the pressure chamber 3 there are slots 9 with anchoring devices 11 designed to grip and hold the reinforcement 10. Formwork 12 tightly encloses the cage 5 of the pressure chamber 3. In the upper part of the formwork racks 13 there are folding stops 16 connected to the mechanism 17 return to working position. When re-braking the raised column 18, the folding stops are inside the formwork 12. The upper bearing surface of the stops 16 corresponds to the rounding of the upper bearing edge of the pressure casing 5, which makes it possible to create a more uniform transfer of load to the mounting stops during the re-drawing process. 1 hp f-ly, 11 ill. to (L

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The invention relates to the construction and can be used for the construction of frames of high-rise buildings of reinforced concrete.

The aim of the invention is to reduce the time needed to erect a building, reduce material consumption and improve the strength of concrete structures.

FIG. 1 shows a device with a njararaiuHM jack, general view, vertical section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 - nest with fittings for gripping rebar; in fig. 5 - device with a telescopic jack, vertical section; in fig. 6,

7- variants of section B - B in FIG. five; in fig. 8 --- device at the time of compression of the concrete mix; in fig. 9 - the device at the time of failure to raise that floor; in fig. 10 - device with a walking two-stage jack at the time of compression of the concrete mix, an option; in fig. 1 the same, at the time of re-digging up that floor.

A device for erecting a monolithic skeleton of buildings and structures contains a jack, which can be a stepper 1 with a small piston stroke or telescopic 2. In the upper part of the jack 1, 2 there is a pressure chamber 3, which is pierced by the pushing rod 4 of the jack, 2. The pressure chamber sleeve 5 3 contains a nut 6 with a threaded thread along the external bypass, the input is engaged with the toothed bar 7. The holder 5 of the pressure chamber 3 can move vertically regardless of the main body of the jack 1, which is also equipped with a locking nut 8, hydrochloric rotatably pdey and engages the toothed strap 7. The nuts 6,

8 are associated with a synchronous lift pusher system of the pushing rod and the main body.

Along the upper edge of the casing 5 of the pressure chamber 3 are the sockets 9 for installing and fixing the reinforcement 10. Inside the socket there are anchoring devices 1, in particular, of a wedge type, designed to grip and hold the reinforcement 10. The sections of the formwork 12 are hingedly attached to the supporting struts 13 and provided at the joints with seals 14 and locks 15. The formwork tightly encloses the holder 5 of the pressure chamber 3. In the upper part of the uprights 13 there are folding stops 16 connected to the mechanism 17 for returning to the working position. When re-drawing up the raised column 18, the folding stops are inside the formwork 12. There are cavities 19 in the uprights, corresponding in shape to the folding stops 16. The surface of the mounting stops 16, facing the inside

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the formwork spaces 12 have roundings corresponding to the rounding of the inner surface of the formwork 12. The upper bearing surface of the stops 16 corresponds to the rounding of the upper bearing edge of the pressure casing 5.

The pillars 13 are interconnected on top of the apron 20, to which the ceiling formwork 21 is attached. At the bottom, the pillars 13 are fixed on the foundation 22 by means of the cross-arms 23.

In foundation 22, there is a recess 24 for installing a jack 1, 2, which serves as a nest in which the lower part of the lower floor column is located.

Concreting and lifting the formed element is carried out in the following sequence.

Initially, the upper overlap is cast, while the outlets of the reinforcement plant inside the formwork 12. The mixture is loaded into the formwork by known methods and lifted by squeezing the concrete mix out of the pressure chamber 3, pressing a predetermined reinforcement. After the concrete has gained sufficient strength, a fragment of the upper floor 25 is brought to the level of the mounting stops 16 and fixed. The jack is lowered into the lower position. Next, install the reinforcing rods 10, connecting them with the releases of the reinforcement 26 of the latching design. The lower ends of the reinforcing bars 10 are driven into the slots 9 and are gripped with the fixtures 11. The formwork 12 is closed. Concrete mix 27 is loaded into formwork 12. Concrete mix 27 is lifted by pushing rod 4. Under the action of the pressure of the column of the empty floor, held by reinforcing bars 10, "float up, freeing the mounting lugs 16, which, under pressure, leave in cavity 19, at the same time “charge return mechanism 17. When the concrete mix is compressed, the position of the cage 5 and the lower ends of the reinforcement 10 are fixed by means of the nut 6. After the concrete has been sufficiently strength, the formwork 12 is opened, the formed column 28 is raised to the full height of the pushing rod 4 together with the pressure chamber 3, while rotating the nut 6 , block the fall of the column 28 in case of failure of the jack. The nut 6 associated with the known jack lifting timing system is turned a certain amount, allowing the jack to extend the column to a predetermined value. After all the jacks involved in the elevation of the building are simultaneously extended to the same height, they pull the main body of the jack, the rise of which is in turn accompanied by rotation of the locking nut 8. Then the lifting cycles are repeated In the last lifting phase, 16

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Claims (1)

5 Frmula of the invention A device for erecting a monolithic frame of buildings and structures, including sectional shuttering boards, a jack, a synchronous lifting and locking system, support racks with windows for mounting stops and mounting devices, mounting stops, characterized in that, in order to reduce the time of building construction, reduce 15 materials and increase the strength of concrete structures, it is equipped with a pressure chamber made in the form of a cage, covering the pushing rod of the jack, along the upper edge of which grooves are formed for core grips of the fittings, and the mounting stops are made rotary and mounted on supporting racks with the possibility of placement in the inner space of the formwork.