SU992706A1 - Knock-down shiftable small-board form - Google Patents

Description

one

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

Known collapsible-permeable small-formwork, including shields and supporting elements 1.

A disadvantage of the known formwork is the limited area of its rational use, which involves its use for the erection of walls or floors. When concreting enclosed spaces in it, significant technical and technological difficulties arise in connection with the need to perform a large amount of manual work.

The purpose of the invention is the expansion of technological capabilities and reduction of labor costs for formwork work.

 The goal is achieved by the fact that the dismountable small-formwork, including shields and supporting elements, is provided with angular

elements and stripping inserts, each of which consists of PA3 plates and corners, fixed

to shields.

FIG. 1 shows the layout of the formwork during the construction of enclosed spaces in it, the general scheme in FIG. 2 is a stripping insert assembly} in FIG. 3 - formwork and construction erected, cross section; in fig. 4 lock assy | in fig. 5 - telescopic connection, general view; fig 6 is the same; in fig. 7 shows section A-A in FIG. five; in fig. 8 is a section BB in FIG. five; on

15 of FIG. 9 - drawing scheme.

The formwork has the following construction.

The formwork planes of the walls 1 and the overlap plane 2 are connected in the vertical and horizontal corners by rigid corner elements 3, and in each of the planes are included the stripping inserts 4 of the paired longitudinal elements

5, which are connected by bolts 7 using removable liners 6.

Composite pillars 8 indoors. connect to wall planes 1 with detachable rigid struts 9 with the help of

shorty 10 And pivot 11 | and on top of the rack 8 a removable telescopic extension 12 is installed, the rod 13 of which is attached to the rack 8 by a support plate 14. Between the racks 8 are connected with sliding telescopic connections 15 with clamps 16 of length, and the formwork plane of the walls 1 is connected with external formwork 17 of the station Bolts 18 with nuts 19 welded to the ends. Strings 18 are secured to the formwork by a tensioning knob 20. In addition to the support fork 21 shown to support the ceiling formwork, the screw jack 22, the check 23 of the jack and the washer 24 for fastening Zey.

Assembling the formwork of closed spaces begins with the installation around the perimeter -. p and, if necessary, in the middle of the room, the pillars 8 on top of telescopic extensions 12 are fastened with a base plate 14,

The pillars 8 are interconnected into an unchangeable rigid frame by sliding telescopic ties 15 and fixed by their lengths with clamps 16. After the design position of the pillars 8 are installed, the formwork walls of the walls 1 are installed, they are interconnected by vertical rigid corner elements 3 and using the detachable rigid locks 9, the formwork planes 1 are attached to the uprights 8 by locking the hinges of the lock and the short ones 1O with pins 11. Previously, in the formwork planes of the walls 1, they are fixed in the necessary places with the help of inserts 6 and bolts 7, stripping inserts 4 consisting of two longitudinal elements 5.

After the installation of the formwork planes of the walls 1 is completed, the formwork plane of overlap 2, which includes the stripping inserts 4, and its joint with the planes of the walls 1 horizontal rigid angular are installed. elements 3 around the perimeter of the overlap. If necessary, for example, in the form of heavy slabs, the rods 13 of the telescopic extensions 12 are pushed upwards until the supporting forks 21 touch with the carrying structures of the formwork plane overlap 2, the rods 13 are pulled upwards with a screw jack 22 and the final position of the rod 13 is tightened by check 23 If necessary, for example, with a large free height of the rods 13, the telescopic extensions 12 are uncoupled using tubular torsion bars 10 attached to the washer 2.4. After the final alignment of the formwork planes of the walls 1 and the plane of overlap 2 of the internal formwork of the closed room, the external formwork of the walls 17 is exposed and connected to the internal formwork by straps 18 using tensioning rollers 2O, which are screwed into the nuts 19 at the ends of the posts 18. With the stripping of the closed room is first removed by the bolts 7 of the stripping inserts, the inserts are removed and the paired longitudinal elements 5 of the stripping inserts 4 are disassembled, after which the stripping is carried out using known methods.

Due to the first removal of the flush inserts 4 from the plane of walls 1 and floors 2, the areas of the concrete surface are released in strips 2 mm wide, eliminating the mutual jamming of the formwork panels and allowing them to be applied to the hardened concrete of the walls and floors.

The absence of 18 ends at the struts, which protrude beyond the plane of the walls, also contributes to an easier separation of the shield opal; BKI after removal of the tension cranks 2O. -.

The application of the proposed formwork allows you to build monolithic structures of various architectural and planning solutions and reduce the labor costs of formwork by 10-15%.

Claims (1)

Invention Formula Disassembled small-shell formwork, including shields and supporting elements, characterized in that, in order to expand technological capabilities and reduce labor costs for formwork works, the formwork is provided with corner elements and stripping inserts, each  " which consists of spacer plates and 1. Guidance on the use of formwork fixed to the shields for monolithic reinforced concrete forts. Sources of information, instructions. Gosstroyizdat USSR, M., 1972, npBHsrrbte into account when examining. 43-64 (prototype). 56 /////////)///////)////////BUT one / J53333I x SrigL B - b FIG. S h go s fpueS