RU66386U1 - REMOVABLE PENDING FORMWORK - Google Patents

Abstract

The utility model relates to construction and can be used for the construction of ceilings directly on the construction site during the installation of buildings from light heat-insulating materials.

The technical result of the proposed utility model is:

- increase the bearing capacity of floors in which fixed fixed formwork is used;

- increase the fire resistance of perforated formwork slabs.

Fixed suspension formwork contains suspension devices consisting of upper and lower reinforcing rods with reinforcing nets attached to them, as well as upper reinforcing rods attached to suspension devices, perpendicular to the suspension rods, and perforated formwork plates attached to the nets using thrust nuts. Suspension devices are additionally fastened together by lower reinforcing rods located perpendicular to the rods of the suspension devices, the lengths of the ends of the lower reinforcing rods of the suspension devices on one of their sides exceed the lengths of the ends of the rods on the opposite sides of the devices and are not equivalent, perforated formwork plates are made of heat-insulating material of the brand Roof-B "LINE ROCK".

Description

The utility model relates to construction and can be used for the construction of ceilings directly on the construction site during the installation of buildings from light heat-insulating materials.

The non-removable suspended formwork used in the ArmoDeck prefabricated ceiling system developed by the Canadian company Hi-Tech Building Systems Corparation is known (see the brochure of the specified company by e-mail on the Internet E-mail: info@armopanel.com; and see the system brochure ArmoDeck quickly erected ceilings at the email address: www.stroymat.ru/view.stat.php. 3). Known fixed hanging formwork accepted by the applicant as a prototype.

The main elements of the ArmoDeck system are the DeckPanel prefabricated fixed formwork module.

DeckPanel consists of one perforated polystyrene foam plate, which is fastened to metal suspension devices using thrust nuts. Suspension devices are made in the form of "flat" nets of steel wire and reinforcing bars. Suspension devices are fastened together by upper reinforcing rods parallel to the beams. During the installation of the ceiling, the reinforcing rods of the modules are supported on beams made of profiled metal, ensuring their joint operation with reinforced concrete flooring.

The disadvantages of the prototype are:

- insufficient resistance to future reinforced concrete floors to bending moments, since metal suspension devices are not fastened together by lower reinforcing bars;

- insufficient bearing capacity of future reinforced concrete floors, since the lower rods of the suspension devices do not interact with the support beams;

- low fire resistance of expanded polystyrene.

The technical result of the proposed utility model is to eliminate the disadvantages of the prototype, namely:

- increase the bearing capacity of floors in which fixed fixed formwork is used;

- increase the fire resistance of perforated formwork slabs.

The technical result is achieved by the fact that in a fixed hanging formwork containing suspension devices consisting of upper and lower reinforcing bars with reinforcing meshes attached to them, as well as upper reinforcing rods attached to suspension devices, perpendicular to the suspension device rods and attached to the nets with using thrust nuts, perforated formwork slabs, according to a utility model, suspension devices are additionally fastened together by lower reinforcing bars, p memory location perpendicular rods suspension devices, the length of the lower ends of the rebars suspension means on one of their sides exceeds the length of the rod ends at opposite sides of the device and thus are not equivalent, perforated shuttering boards made of heat insulating material-B brand Ruf "LINE ROCK".

The fastening of the suspension devices to each other by lower reinforcing bars installed perpendicular to the suspension device rods increases the resistance of future reinforced concrete floors to bending moments, i.e. increases the bearing capacity of the floor.

The excess lengths of the ends of the lower reinforcing rods of the suspension devices on one of their sides over the lengths of the ends of these rods by

on the opposite sides of the devices ensures the continuity of the bottom reinforcement of the future reinforced concrete floor due to the fact that when installing the formwork on the supporting beams, the long ends of the lower reinforcing bars are inserted into the grooves made in the beams and overlap with similar rods of the adjacent formwork, which increases the bearing capacity of the overlap.

The unequal lengths of the ends of the lower reinforcing rods of the suspension devices provide a consistent input of the rods into the grooves of the beams, which facilitates the installation of formwork.

The implementation of perforated formwork slabs from Ruf-B brand material "LINE ROCK", characterized by increased fire resistance, increases the degree of safety of people living or working in the constructed building.

The essence of the claimed utility model is illustrated by drawings.

Fig. 1 shows a block of fixed suspension formwork.

Figure 2 shows a suspension device.

Figure 3 shows a diagram of the installation of formwork blocks on support beams.

The formwork contains non-removable suspension devices 1 (Fig. 2), consisting of upper 2 and lower 3 reinforcing bars, interconnected by reinforcing wire 4, bent in the shape of a snake, the straight sections of which form an angle of 45 degrees with the rods. To the rods 2 and 3, studs 5 are attached with a uniform pitch, having self-tapping threads at the ends. Suspension devices 1 (Fig. 1) are fastened together by upper 6 and lower 7 reinforcing bars located perpendicular to the rods 2 and 3 of the suspension devices 1. To the frame thus obtained with pins 5 and thrust nuts 8, a perforated plate 9 is attached, which is a formwork for concrete made of a thermal insulation material of the Ruf-B brand "LINE ROCK", which has high fire resistance.

The lengths of the upper reinforcing rods 2 (Fig. 3) of the suspension devices 1 exceed the distance between the support beams for formwork by an amount that ensures overlap of the reinforcement of adjacent formwork, than after the concreting of the ceiling the continuity of the upper reinforcement is achieved. The lengths of the ends of the lower reinforcing bars 3 of the suspension devices 1 on one of their sides exceed the lengths of the ends of the rods on their other side. The long ends of the rods when installing blocks of formwork on the support beams are introduced into the grooves of the beams, which ensures overlapping of the rods 3 with similar rods of the adjacent formwork, which ensures the continuity of the lower reinforcement.

The formwork blocks mounted on the supporting beams are monolithic with concrete.

Claims (1)

Fixed suspension formwork containing suspension devices consisting of upper and lower reinforcing rods with reinforcing nets attached to them, as well as upper reinforcing rods attached to suspension devices, perpendicular to the suspension rods, and perforated formwork plates attached to the nets using thrust nuts, characterized in that the suspension devices are additionally fastened together by lower reinforcing bars located perpendicular to the suspension rods devices the length of the lower ends of the rebars suspension means on one of their sides exceeds the length ends of the rods at opposite sides of devices and thus are inadequate, perforated shuttering boards made of thermally insulating material Ruf brand-B "LINE ROCK".