SU863810A1 - Three-dimensional shiftable form - Google Patents

Description

(54) VOLUME AND POSTABLE FORMWORK

one

The invention relates to the construction and can be applied in the construction of buildings of monolithic reinforced concrete.

Known volume-adjustable formwork for concreting walls and floors, including corner sections consisting of horizontal and vertical shields, braces, rollers and jacks, a horizontal shield insert and stripping mechanism, made of a frame, two shoulders, lead screw, interacting with it nuts with trunnions and tgami, rollers Q for rolling a formwork 1.

The disadvantage of formwork is the high labor intensity of the formwork work due to the need to perform screw jack installation operations.

Also known is a volume-adjustable is formwork, including a supporting frame with through-grooves, L-shaped shields with brackets, fingers placed in the through-grooves of the frame, and a stripping tool, rollers for horizontal movement of the formwork and locking positions of the shuttering shields 2.

However, to install this formwork in the design position, a number of non-mechanized labor-intensive operations are required. In addition, for the operation of the formwork, it is necessary to pre-erect special concrete pots on the ceiling along the contour of the concrete walls.

The purpose of the invention is to reduce labor costs for formwork work.

The goal is achieved by the fact that in a volume-adjustable formwork containing a supporting frame, wall shuttering boards, shuttering shuttering board, supporting devices and stripping mechanism, the supporting frame is made of a composite of the upper and lower parts, shuttering shuttering shield of two hinged elements and liner , which are connected to the lower part of the supporting frame, and each supporting device consists of a spring-loaded pin, adjusting and locking screws.

Claims (2)

FIG. 1 shows section A-A in FIG. 2 (formwork in the horizontal plane); in fig. 2 shows a section BB in FIG. one; in fig. 3 shows a section B-B in FIG. 1 (with the floor slab shields lowered). The formwork consists of the upper frame 1, the lower frame 2, the wall formwork panels 3, the shuttering panel cover 4, the stripping mechanisms 5 and the support devices 6. The upper frame 1 is connected to the lower frame 2 by bushings 7, in which the bottom 8 frames 3 are placed. On the upper frame 1 there is a working floor 9 with a manhole 10, designed to supply reinforcement and concrete mix during the construction of the ceiling. The working floor 9 contains mounting loops with holes for passing the lines 11. The bottom frame 2 includes four beams on which rods 8 are placed, guides 12 under the rollers 13 of the boards 3 and cones 14, forming holes in the concrete for passing the lines 11. Shields 3 are made according to the size of the wall of the concreting cell in the form of a flat frame of steel beams, the common sheet, are hinged to each other with an angular insert 15. On the forming surface of the shields in the upper part, on the outer side, above the supporting device 6, are placed boxes 16 forming in the wall cn Special nests for retaining formwork. From the inner bottom, the shields are equipped with rollers 13, with which they rest on the guides 12 of the lower frame, as well as with the kerchiefs of the shielding mechanisms of the shields 5, with an inclined groove in which the fingers are rigidly connected to the upper frame 1. The shuttering 4 is made in the form of two flat panels, similar to the walls of the structure, pivotally interconnected in such a way that the axis of the hinge is parallel to one of the sides of the cell. The axes of the hinges 17 are fixed on the bottom frame 2 by means of adjustable lengths of the t 18 g. At the opposite edge of the hinge, hooks 19 are placed on the boards below the holes in the sheet for fastening the loops 20, which end the lines 11. The hinges contain jumpers 21 under which wedges are placed 22 for fixing the formwork overlap 4 in the raised position. A slit liner 23 rests on the ceiling formwork. Four support devices 6 are fixed on the bottom frame 2 and comprise 24 pin housings 25, springs 26 and adjusting 27 and locking 28 screws. The method of simultaneous arrangement of monolithic floors and walls in each cell of buildings and structures in the proposed formwork is as follows. After the geodetic breakdown of the axes and the installation of the reinforcement cage of the walls and the window formers, the formwork is laid on the base plate of the building (structure) and the liner 23 is laid on the formwork 4. A wall formwork unit with the removed support devices 6 is installed on the formwork 4 and the supports under the lower frame 2 are installed the sheerness of the wall form panels and the horizontal position of the working floor, orienting at the top of the boxes 16; install external paneling of external walls; placing concrete or similar mixture in the formwork of the walls of the basement strictly to the level of the top of the ducts; after building the required strength with walls, by mounting the hinges of the upper frame 1, the crane lifts the wall form boards to a height sufficient to allow the frame 3 to tear off the form panels from the walls when inclining slots of the slots 5 of the tear-off device 5, and place the frame 2 on temporary supports; T-rods 18 secure the formwork 4 to the frame 2 and mount the devices 6 to the last supports. These operations complete the assembly of the block-adjustable formwork unit; set the loops 20 of the straps 11 onto the hooks 19 and fix the formwork to overlap 4 in the opened form with wedges 22; alternately (in a checkerboard pattern), the crane lifts the blocks of the space-adjustable formwork to a height sufficient for the pins 25 under the influence of springs 26 of the supporting devices 6 to enter the slots in the walls of the basement formed by the boxes 16; make cleaning and lubrication of the formwork walls and floors; install armo carcasses and wall formers; alternately removed and in the order described are installed on the wall blocks of the volume-adjustable formwork in the remaining cells; the adjusting screws 27 of the support devices 6 while simultaneously controlling the level of the boxes 16 on the level ensure that the working floor of the formwork is identical for the whole building (structure); crane install shields of the formwork or slab-shell of the external walls with fastening them with pins to the corresponding blocks of the volume-adjustable formwork; the interfloor reinforcement cage is mounted with the bend of the armature grid and the insert 23 in each cell and the reinforced framework of the walls; through a hatch in the working floor, concrete or other mixture is placed in the floor slab with a continuous transition to laying the mixture into the walls from the floor. After the required strength has been established by overlapping, it is demolished, for which the crane chooses the slack of the sling 11 and removes the wedge 22 from the hinges 20. Lower the shields of the formwork 4 to a vertical position. Remove the hinges 20. Clean and lubricate the formwork. Claims 1. Volume-adjustable formwork comprising a carrier frame, wall form boards, a shuttering form panel, supporting devices and a stripping mechanism, characterized in that in order to reduce labor costs for the formwork work, the supporting frame is made of upper and lower parts, the shuttering shuttering panel is made of two pivotally connected elements and a liner, which are suspended from the lower part of the supporting frame, and each supporting device consists of a spring-loaded pin, adjusting and locking screws . 2. Volume-permuted formwork nos. 1, characterized in that it is provided with a working floor mounted on a supporting frame. Information sources, taken into account in the examination 1. USSR author's certificate number 531914, cl. E 04 G 11/02, 1973. 2. USSR author's certificate No. 473004, cl. E 04 G 11/00, 1973. 15L-Ai / AND / f sixteen . / ff i