SU80481A1 - Scaffolding and method of their rearrangement - Google Patents

Description

The object of the present invention is a scaffolding with a self-propelled crane mounted on them, distinguished, using racks that cannot be repaired at height, but at the time of alternate lifting of racks from floor to floor of the scaffolding frame are raised to the iodcrane beams of the rolling crane. Thanks to such a non-restoration scheme, scaffolding is erected without disassembling, thus accelerating the work of the hero and herd.

The scaffolding is intended for laying walls, fixing elements of interfloor and attic floors, rafters and roofs. They are installed around the perimeter of the external walls of the building from the inside, and are supported on the joists of the floors.

FIG. 1 shows a diagram of scaffolding in cross section; in fig. 2-4 parts /, 2 and 3 nodes 1, II, 111 of FIG. 1 racks of scaffolding in the context of a normal crane beam; in fig. 5- view of the upper corner of the stand (node I from the facade); in fig. 6-view of the lower corner of the scaffold rack (node II in plan); in fig. 7 is a view of the working lower flooring in cross section; in fig. 8-diagrams of installation and successive stages of movement of scaffolding in the course of work, side view.

The forests consist of the following components;

1. Pipe racks 3 (Fig. 1) made of gas pipes with a diameter of 2.5 yl and a length of 4.5 m with an opening for fastening the frameworks of the flooring and the crane way. The lower end of the rack rests on a metal shoe (Figs. 3 and 4), consisting of a base plate / and a sleeve 2, through which the load from the rack is transferred to the floor slab. At the upper end of the post 4 (Figs. 2 and 5), the pin with roller 5 for the cable 6 from the hand winch for lifting the floor and the crane path is fastened.

Ho 80481-2 -

2. The lower support frames 8 (fig. 3) of two channels 10 rigidly fastened together by metal washers 7, in which holes are made for tubular struts.

A hand winch 9 is attached to the lower support frame for lifting scaffolding.

On the lower support frame (Fig. 6), when assembling the scaffolding, they are supported and rigidly fixed with corners // and bolts 12 with overlays 13 wooden girders from sparks 5X14 cm planks 24 (Fig. 7). The girders are laid on the girders 25 of the floorboards, another 4 cm. The girders and the flooring are arranged in sections along the length of the transom walls.

3. Upper support frames 26 (figs. 1, 2 and 5) of two channels 16, rigidly fastened between -swash washers 14 with kerchiefs 15 with nomoshi stiffeners 17 and corners 18, 19, 20 and 21. In washers 14 ( Fig. 2) there are openings for tubular racks.

4. Subcrane beams 23 (Fig. 2) of I-beams No. 14, attached to the upper support frame with bolts 22.

A self-propelled crane moves along crane beams along the construction site. Crane beams are arranged continuous along the entire length of the building. The individual links are interconnected by connecting rivets.

The longitudinal stiffness of the scaffolding is ensured by the rigid fastening of the runs of the required working deck and upper cut edges. In addition, at the ends of the scaffolding, an additional fastening is provided in the form of tension 27 (Fig. 8) from a steel cable (2 pieces at each end).

The cross stiffness of the saw is provided by rigid upper and lower frames having stiffeners (gussets).

The distance between the posts was taken 2.0 m in the transverse direction and up to 2.5 .11 in the longitudinal direction. In this case, in the longitudinal direction, the distance can vary depending on the distance between the gyucereal walls and the stems, but should not exceed 2 ± 5 m.

The total width of the scaffolding, equal to 2.5 m, is achieved by a one-sided cantilever 0.5 m long in the direction of the wall being laid out.

The cantilever part of the forest is the workplace on which the stone moves during masonry. The space between the racks is mainly used for storing materials.

The fact that all materials are supplied directly to the workplace without horizontal transport from the elevator, the accepted width of the scaffolding completely eliminates the normal and moral organization of the working place.

It is necessary that the dimensions of the mobile crane meet the following conditions:

1. The greatest weight of assembly elements or containers with materials should not exceed 30 kg.

2. The free length of the boom of the crane outside the building must be at least 2 liters.

3. The departure of the boom of the crane must ensure at least half the breadth of the building.

4. Maximum building width is 13 l.

5. Two cranes installed on the forests of opposite outer walls should serve the entire width of the building.

6. The weight of the crane with the load and the counterweight, as well as the payload on the scaffolding, must not exceed the carrying capacity of the posts on which it is distributed.

7. The size of the crane (except the boom) must ensure its free passage between the posts of the scaffolding (the distance between the pillars of the uprights 2 and h)

8. The crane must be self-propelled and fully rotatable.

The scaffolding is done in the following order.

Behind the pair of tubular uprights are lowers, and then the upper support frame and through the holes are attached to the uprights.

The assembled structure is mounted vertically and fastened to the bottom by wooden girders, along top-metal crane beams.

After the assembly of two pairs of racks, a self-propelled crane is installed, which, moving in the direction of the assembly of the scaffolding, performs all transport operations on the assembly of the scaffolding (raising racks, runs, etc.).

At the beginning, forests are collected in position .4 (Fig. 8). From position A, the first Rus is laid to a height of 1.1 m.

The raising of the working floor for the laying of the second Rus (position B) is carried out by separate links. The length of each link is determined by the distance between the transverse steppes of the building.

To raise the working deck, the cable from the hand winch, which is located on each stand, is driven through the roller on the stand and dropped to the lower frame. The lifting is carried out simultaneously by all the winches of the 9 racks of the given raised link of the flooring.

After climbing up to 1, 1 m, i.e. to position B (Fig. 8), the lower frames are fixed in the new position with the same plugs into the corresponding strut holes.

The elevation of the flooring in position C and D is in the same order as the elevation in position B.

After all the links of the flooring have been lifted to the F position, i.e. after the completion of the masonry of the floor, a vertical movement of the scaffolding is carried out. For this, within the length of one link (if it does not exceed 6 m), otherwise, within the part of the link, the pillars are freed from the attachment to the floor and frame of the crane path (shafts) and the posts are raised all their free length (position D). In this case, the entire structure of the scaffolding within the link or part of it is held on the metal beams of the edge path. A self-propelled crane, in order to avoid an external load, is beyond the limit of this link.

The self-propelled crane approaches the place where the pillars are raised, but not included in the raised racks, and. mounts beams overlap 28. pakata shields and stuff. Zateu. racks, a little lower until the beams are installed on the latter.

After the entire length of this operation is completed, irois-Dptts lowering the working deck and raising the crane beams together with the mobile crane to the position corresponding to the initial position.

Lifting the crane girders together with the specks is carried out using the same hand winches 9 attached to the structure of the lower frames (working deck), but the free end of the cable is fixed to the upper frames.

Lifting can be carried out simultaneously along the entire length or from individual parts. In the latter case, the crane beams flare up in the joints, and after lifting they are again flush.

Subject invention

Claims (2)

1. Scaffolding consisting of racks and frames with working floor that are moved along them in the vertical direction, characterized in that above the working floor there are frames on the racks that carry - 3 -Lo 80481 the crane beams of the rolling crane for feeding materials and the possibility of moving relative to the uprights in the vertical direction when re-arranging the scaffolding from floor to floor without disassembling. 2. The method of re-scaffolding according to p. 1 from floor to floor, characterized in that the frames carrying the working floor raise the section of the crane girders, raise the stands of scaffolding, lay the beams of the building under the raised stands of the beam and the scaffold stands down on these beams and then lifting the upper frames, bearing beams, to a higher level. Fia. one FIG. 2  . ,, - Yus /  X n ii; /. 13 7 н 1г J. H, .. J ШГ l / g b FIG. 7 24 25 },; g, g-. - .. ...,. . " : t4J 3 4.6l "-,:; -, s .