SU787598A1 - Modular form - Google Patents

Description

(54) BLOCK FORMWORK

one

The invention relates to the construction and is intended for the construction of monolithic reinforced concrete walls of residential, civil and industrial precast-monolithic multi-storey buildings with external walls made of hanging products or bricks with prefabricated reinforced concrete slabs.

Known block formwork consisting of L-shaped formwork panels, a hinged insert and a stripping mechanism for simultaneous stripping of all elements relative to the slab by connecting the short sides of the formwork panels to the hinge insert, and their long sides with lanyard I.

The disadvantage of the formwork is that the level horizon of the upper ends of the boards depends on the accuracy of the installation of the floors and the quality of the surface of the floor panels along which the support rollers of the boards move; their movement on the floor, made a set of hollow slabs, is impossible. To move the corners of the L-shaped boards from the wall to the required distance to remove the formwork,

large length working stroke tolrepa, opening the long side of the L-shaped shields.

When installing a special cross-beam formwork for a cleaning post, specially prepared platforms with a surface of a given accuracy are required in order to avoid damage (misalignment, deformation) of the hinged joints of the formwork, which also complicates its operation.

The purpose of the invention is to reduce the operational effort.

Goal Achieved Achieved by the fact that block formwork, including L-shaped formwork shields, a hinged insert and a stripping mechanism, is equipped with a frame with telescopic stops, screw jacks, a hinged-screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and the screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields, the adjusting devices are in contact with the L-shaped shields and the screw mechanism and end shields, and the adjusting devices are in contact with the L-shaped shields and screw mechanism and end shields; mounted on a frame and hingedly connected to face shields.

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FIG. I shows the formwork in working position; in fig. 2 - the same, during stripping; in fig. 3 - formwork in oxonometry.

The formwork includes two spatial panels of 1 L-shaped form with planes of sheet steel, reinforced vertical profiles and supporting beams horizontally, the short sides of the shields are connected by a hinged insert 2, the long sides of the shields are provided with end shields 3 on which the hinged part is attached pole 4 with a lockable hinge 5 in the center. Forming shields 1 with brackets 6 are mounted on a frame 7 made of supporting beams 8 interconnected by variable-length tubular elements 9, designed to readjust the formwork to a predetermined pitch. The frame 7 is equipped with telescopic stops 10 and screw jacks P. To move the hinged insert 2, a pivot-screw mechanism 12 is provided. Work with the formwork is carried out with the service platform 13. The formwork is moved by a special crosspiece 14.

Preparation of the formwork for work is performed in the following sequence.

The formwork by changing the length Ht i of the tubular elements 9 of the frame 7 and the hinged insert 2 of the composite bar 4 is assembled in accordance with the predetermined dimensions of the moldable cell 15, while the L-shaped shields 1 are installed with the help of telescopic lugs 10 into the working position and are blocked relative to the frame 7 by means of 6 brackets 6 , and end shields 3 are blocked by composite shtanga 4 and joint 5.

Next, the formwork set on the floor, align it in a vertical plane with screw jacks 11 mounted on the frame 7. Then proiz / ///

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concreting. After the concrete reaches the specified strength, demolding is performed, for which the brackets 6 and the hinge 5 of the composite rod are unlocked, while the end shields 3 are turned into the formwork. Then the telescopic lugs 10 make the shields detachable, and the sharnirnovy screw mechanism 12 increases the gap between the shields 1 and the cell 15 to facilitate the removal of the formwork. Removal of the formwork is carried out using a special traverse 14.

The formwork is transferred by crane to the next job. When dismantling and installing the formwork, the service platform 13 may not be removed.

To change the length of the molded cell along the long sides of the L-shaped shields, it is provided to introduce additional inserts 16.

Claims (1)

Invention Formula Block formwork, including L-shaped formwork shields, a hinged insert and a stripping mechanism, characterized in that, in order to reduce maintenance labor, the formwork is provided with a frame with telescopic stops, screw jacks, hinged-screw mechanism and face shields, and adjust- able shafts, elbows, screw jacks, face screws, hinge-screw mechanisms and face shields, and adjusting shafts, helical jacks, face screws, hinge screws, and helical shafts, and helical jacks and face shields. with L-shaped shields that are mounted on a frame and are hingedly connected to face shields. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 383816, cl. E 04 G 11/02, 1971. /  -.4. .. j.  -V 787598