RU1805191C - Formwork for erecting low-rise buildings - Google Patents

Abstract

Use: for the construction of low-rise buildings. SUMMARY OF THE INVENTION: The formwork board is made in the form of a continuous shield attached to the supporting frame along the contour with detachable articulated joints in the form of a sleeve and hydraulic rods included in them, and the formwork is rotated by a hydraulic stand, pivotally connected to the shield. 6 yl.

Description

The invention relates to the construction of buildings from reinforced concrete and can be used in the construction of low-rise buildings.

The aim of the invention is to expand technological capabilities and improve the quality of concrete surface.

In FIG. 1 shows a general view of the device in plan; in FIG. 2 is the same. longitudinal section, diagram of the lifting of wall structures by rotation by 90 °; in FIG. 3 is a diagram of raising a wall structure to a design position, wherein the opposing wall structure is mounted; in FIG. 4 is a schematic of concreting an internal wall; in FIG. 5 is a hinge assembly for fixing the formwork to the frame; in FIG. 6 - hinge in the open position.

The formwork for low-rise buildings includes a table-type formwork panel 1 mounted on a supporting frame

2.

The shield 1 is suspended from the frame 2 by means of articulated joints 3 equipped with hydraulic cylinders 4 and entering by 5 g rods into engagement with the bushings 6.

The supporting frame 2 is equipped with rollers 7 and two additional beds, which act as scaffolds 8, which surround each cell of the building along the perimeter.

The supporting frame 2 is mounted on telescopic racks 9, for example, hydraulic racks. The telescopic racks 9 have mainly three stages each one floor high, each link of the platform of platforms 8 is installed.

The formwork board 1 is equipped with a tipping mechanism in the form of a hydraulic stand 10, fixed by the main link to the supporting frame 2 by means of a hinge 11, and the outer link is engaged with the formwork shield 1.

The formwork panel 1 is equipped with a mechanism for exciting vibro-shock loads (not shown) and is configured to fasten the opening patterns 12. 13, while the opening pattern 13 is mounted on the edge of the shield 1 and serves to retain the wall structure of the panel 14 on the plate and to form in the wall fine 15 under the overlap.

First, the walls 16 of the basement of the building are erected, for example, they are cast on the floor

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17 basements in a horizontal position and odnat in a vertical rotation by 0 °.

An opening (not shown) is arranged in one wall. Next, in each cell of the building, a formwork board 1 is mounted on telescopic racks 9 with mounting of the supporting frame 2, etc.

. Changing the position of the shields relative to each other, you can create various options for planning decisions of buildings.

After installing the shuttering board 1 at the level of the ceiling above the basement, apertures, reinforcing frames are installed and concrete mixture is laid for the construction of wall structures. First, a layer of heavy concrete is laid for the inner supporting layer of the wall. After it has been compacted (mainly by a vibration-shock method), a layer of insulation is laid, for example, polystyrene foam boards or polystyrene foam chips, then flexible anchors are installed and the insulation is covered with a layer of external textured concrete, after which the concrete mixture is again compacted.

The use of rigid concrete mix and compaction by vibration-shock method allows to create a high-quality concrete structure with sufficiently quick hardening.

After completing the molding of the wall structure and having sustained its necessary time, the wall structure is set by turning to the design position, for which the hinges 3 are closed from the location of the wall being erected, and the hinges 3 on the other three sides of the shield are turned off by withdrawing the rods from the bushings, while the shield 1 is lifted into vertical, retractable water stand 10. All other walls are erected in the same way. If necessary, the internal walls of the building are erected in a monolithic version. To this end, the opposing shields 1 are lifted vertically (Fig. 4) and a concrete mixture is laid between them in the required technological sequence. To adjoin the walls to each other, additional precast formwork elements (not shown) are used.

Having completed the formation of the walls of the lower bed, the shuttering board 1 is moved to the higher bed using telescopic racks 9 and the walls of this wall are mounted and concreted.

The slab is cast backward through the formwork from top to bottom, for which the formwork panel is fixed at the level of the slab and the structure is concreted.

Before starting the laying of the concrete mixture, it is desirable to cover the formwork board 1 with a structural plate with a relief pattern or a polymer film.

The reinforcing cages when laying the plant in the bays 15, while sealing the horizontal joint in the wall.

In the process of concreting floors, scaffolds 8 are used for wall decoration

from the inside and to seal joints between structural elements of the walls of the building.

After concreting the floors, the formwork is lowered onto pre-installed rails in the basement and

by means of rollers 7, they are rolled outside the building through the mounting opening. After that, the telescopic racks 9 are dismantled.

Thus, the goal is fully achieved. Due to the possibility of concreting using the same formwork of both prefabricated and monolithic walls, the technological capabilities of the device are expanded. Improving quality

works, since the number of joints on the plane of the formwork board is reduced, possible differences that appear on the surface of concrete are eliminated. The probability of the displacement of numerous formwork elements relative to each other is excluded during the vibration-shock method of controlling the concrete mixture with the inevitable rejection during the formation of structures. The design of the device is simplified, since the shuttering formwork is solid and only one hydraulic stand is used to tilt it.

Claims (1)

The claims Formwork for erecting low-rise buildings, including a supporting frame on wheels, a formwork panel hinged on the frame, a lifting and supporting mechanism with telescopic racks. a formwork and formwork turning mechanism, characterized in that. that, in order to expand technological capabilities and improve the quality of the concrete surface, the formwork panel is made in in the form of a continuous shield attached to the supporting frame along the contour by means of detachable swivel joints arranged in pairs on each side of the shield, made in the form of a sleeve and hydraulic rods included in them, and the formwork rotation mechanism is made in the form of a hydraulic stand hinged to the frame, installed with the possibility of articulated to formwork. vrЈ