SU1502770A1 - Movable formwork - Google Patents

Abstract

The invention relates to the construction and can be used in the construction of buildings and structures of solid concrete and reinforced concrete. The purpose of the invention is to improve the reliability of formwork and reduce energy costs. The mobile formwork consists of panels-panels 1 mounted on a U-shaped frame 7, lifting winches 8 with cantilever brackets 9 and flexible legs 10, guides 11 rigidly fixed on the inner walls of the building, spring-loaded rollers 12 and sliding clamps 13, including hinged cantilever slats 14, thrust cylinders 15 and anchor pads 16, abutting against the building block when fixing the formwork. Such a formwork construction excludes possible distortions and its jamming during lifting, as well as its displacement in the plane of the panel panels 1 with uneven concreting. 2 Il.

Description

g (L

FIG. 2

31502770

H11drotsilipd1) Ы 15 and supporting stacks 16, sy and its wedging during the ascent, rests against the building at the same time and also mixes it in the plane of fixing the formwork. Such a construction of the liner 1 with uneven formwork eliminates possible re-concreting. 2 Il.

The invention relates to the construction and can be used in the construction of buildings and structures of solid concrete and reinforced concrete.

The purpose of the invention is to increase the reliability of formwork and reduce labor costs.

Pa figs. 1 shows the mobile formwork in the plan (at the moment when the concrete is laid in the formwork, the formwork panels are not detached from the concrete, and the fixings are extended into the working position); in fig. 2 shows section A-A in FIG. 1 (mobile formwork in the initial position before concreting the wall, panel formwork panels in the design (working) position).

The mobile formwork consists of form-forming panels-panels 1, lifting and fixing devices of the working deck 2 and hydraulic cylinders of horizontal displacement, necessary for separating the panels-panels 1 from the concrete during demoulding, as well as for horizontal movement and return of panels-panels to the initial position .

Shields-panels 1 include deck, stiffener ribs 4, purlins 5 and window-forming units 6. Shields-panels are fixed on U-shaped parmax 7.

The formwork lifting device consists of winches 8 with cantilever brackets 9 and flexible rods 10. The locking device consists of guides 11, spring-loaded rollers 12 and retractable clamps 13, including hinged console brackets 14, thrust hydraulic cylinders 15 and supporting points 16 .

Mobile formwork works as follows.

After lifting the formwork with the help of winches 8, it is securely fastened by sliding clamps 13, which occupy the working position (Figs 1 and 2) by converting the cantilever TuiaHOK 14 with the help of hydraulic axles 15 from the vertical to the horizontal. In this case, the support points 16 of the cantilever slats 14 abut against the lower and upper interfloor overlaps 17 of the building being erected, excluding the horizontal displacements of the formwork in the direction perpendicular to the plane of the panel panels. At the same time, the retractable latches, rigidly clamping the formwork between the two ceilings, completely exclude the possibility of its emergency vertical displacements and distortions due to the microstrains of flexible t g 10 or slipping of the friction brakes of winches,

Elimination of emergency distortions and jamming of the formwork during its lifting (reliability of operation during lifting), as well as elimination of emergency displacement of the formwork in the plane of the panel boards with uneven concreting (fixing reliability in the working position) provide spring-loaded rollers 12 moving during lifting or abutting in the working position into guides 11 rigidly attached to the inner walls 18 of the building being erected.

The reliability of fixation completely excludes any accidental displacements and distortions due to wind loads applied to it, as well as dynamic effects during concreting and vibration compaction.

Stripping is carried out by tearing off and subsequent horizontal movement of the panel panels 1 with the help of horizontal hydraulic cylinders 7. The formwork is then deflated by converting the cantilever slats 14 with the help of the resistant hydraulic cylinders 15 from a horizontal to a vertical position, as a result of which the retractable locks 13 are folded and occupy a transport position in the plane between the inner columns of the U-shaped frames 2. Then the formwork is winches 8 lift to the new floor-rus, fixation is made, move the panel panels 1 to

the design position, the formwork is locked in the working position and the operations are repeated.

Claims (1)

Invention Formula Mobile formwork, containing panel panels mounted on a U-shaped frame, hydraulic cylinders for horizontal movement of panel panels, lifting and fixing devices, which, in order to increase the reliability of the formwork and reduce labor costs, the formwork is equipped with p you Compiled by A. Rybin Editor A. Motyl Tehred L. Oliynyk Order 5058/42 Circulation 644 VNIIL of the State Committee on Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, F-33, 4/5, Raushsk nab. rigidly fastening the internal walls of the erected structure, spring-loaded rollers mounted on the U-shaped frame and interacting with the guides, and the fixing device is made in the form of cantilever planks with supporting points and hydraulic cylinders, hinged on the U-shaped frame with the possibility of placing in the space between the ceilings, the erected structure and the installation of cantilever slats in a horizontal position at the moment fixing the formwork on the ceiling; Proofreader M. Pojo Subscription