SU1760048A1 - Shuttering for concreting monolithic reinforced-concrete structures - Google Patents

Abstract

This invention relates to the field of construction. The goal is to expand technological capabilities and increase productivity with repeated use of formwork. The formwork includes a stripping mechanism in the form of a fixed wedge 4 fixed on deck 3 and interacting with an inclined surface with a movable wedge 5. The fixed wedge 4 of the uppermost pair of wedges is provided with an abutment interacting with the movable wedge 5 in its upper extreme position. All movable wedges 5 are provided with inclined shoulders 5 a, which cover the corresponding protrusions of the fixed wedges 4. form other guides connecting the wedges 4, 5 into the sliding one-piece connection. The movable wedge 5 is mounted in guides 6, fixed on the collar 1 and provided with stops that limit the course of the movable wedge 5. 4 Il. (Ls

Description

The invention relates to the construction, in particular to formwork, and can be used in the construction of monolithic reinforced concrete structures, mainly walls, foundations, as well as in the manufacture of reinforced concrete bulk products.

Known formwork for concreting monolithic reinforced concrete structures, comprising a formwork, a frame and a stripping mechanism in the form of a working body connected with a drive with drive 1.

A disadvantage of the known construction is that when the deck is separated from the concrete, the formwork frames move, which necessitates reassembly before each concreting, which reduces the productivity of work and increases labor costs.

The closest technical solution is a formwork for concreting monolithic reinforced concrete structures, including a frame, a deck, and a spreading mechanism, containing between the frame and the deck, interacting with each other moving and fixed wedges 2.

The disadvantage of opubs is the inconvenience of operation, which reduces the performance when re-using formwork, as well as the unsuitability of the device for concreting monolithic reinforced concrete structures with a wall thickness

The purpose of the invention is to expand the technological possible gay and increase productivity with repeated use of formwork

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This goal is achieved by the fact that the formwork for concreting monolithic reinforced concrete structures is known, which includes the frame, deck and raspalabochny mechanism. containing movable and fixed wedges interposed between a frame and a deck, interacting with each other, are provided with straight guides with stops rigidly fixed to the frame, each pair of movable and fixed wedge being connected by means of other guides to the one-piece sliding joint, and planes of rectilinear guides interacting with movable wedges parallel to the plane of the deck.

FIG. 1 shows a top plan form; in fig. 2 is a section A-A in FIG. one; in fig. 3 shows the node I in FIG. 2; in fig. 4 is a section BB in FIG. 3

The formwork for concreting monolithic reinforced concrete structures includes a frame containing clamps 1 and pillars 2 deck 3, a stripping mechanism made in the form of a fixed wedge 4 fixed on the deck and interacting with its inclined surface with the inclined surface of the movable wedge 5 mounted in guides 6 fixed on the collar 1 and provided with stops 7, 8, limiting the course of the rolling wedge 5, the screw rod 9 is equipped with a rigidly mounted washer 10, enclosed between the stop 7 and the plate 11. prevents axial movement of the rod, and interacts with the response thread, made in the movable wedge 5. All rods 9 are vertically connected by steel rods 12, having splined sleeves 13 and springs 14 The fixed wedge 4 of the uppermost pair of wedges in is equipped with a stop 15, interacting with the movable wedge 5 in its uppermost position I. All movable wedges 5 are equipped with inclined shoulders: 5 a, which cover the corresponding protrusions 4 and fixed wedges 4, thus forming other guides connecting the movable 5 and the fixed 4 wedge l in sliding one-piece connection. The system of sprockets 16, connected by chain drives 17, is intended for the synchronous rotation of the screw rods 9. From above, the stripping mechanism is closed by a protective visor 18 of elastic material. The visor rests on the xeciKO. Replaced to plate 11 and deck 3 races 19 and 20, respectively.

The formwork works as follows.

When the handle is rotated (not shown in the drawings), one of the upper helical rods 9 actuates through the chain gear the entire system of stripping mechanisms. In this case, the movable wedge 5 of each mechanism comes out of contact with its inclined surface 5 b (Fig. 4), with the corresponding inclined surface 4 b of the fixed wedge 4, beginning

contact your inclined shoulders 5 and with the mating protrusions 4 a of the fixed wedge. As the movable wedge moves along the rod 9 from position i to position II, due to the reciprocation

The shoulders and protrusions increase the force of separation of the deck from the concrete, at some point this separation occurs, after which the formwork is hooked on by a crane (not shown in the drawings) and lifted. After cleaning and lubrication

formwork is installed with a crane on a newly prepared place. By rotating the handle (not shown in the drawings) in the opposite direction, the movable wedge 5 moves from position II to position I to

stop 8 (Fig. 3), in which the movable wedge 5 with its inclined surface acts on the inclined surface of the fixed wedge 4. The formwork is ready for concreting.

Claims (1)

Invention Formula Formwork for concreting monolithic reinforced concrete structures, including a frame, deck and stripping mechanism, containing interconnected moving and fixed wedges between the frame and deck, in order to expand technological capabilities and increase productivity with repeated use of formwork, 5, it is provided with rectilinear guides with stops rigidly attached to the frame, each pair of movable and fixed wedges being connected by means of other guides to the integral 0 sliding joint, and the planes of the rectilinear guides interacting with the movable wedges are parapal planes of the deck figure 1 2 Aa