SU922255A1 - Apparatus for hoisting floors and complete storeys - Google Patents

Description

(54) DEVICE FOR LIFTING CLOSES

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The invention relates to the construction of buildings by the method of lifting overlaps and floors, in particular, to devices for lifting with bearing on mines.

A device for mounting a monolithic reinforced concrete floor at the rigidity core of a building is known, including lifts with traction and ring scaffolds, made with supports for fastening the lifts, stop screws, beam anchors and support brackets 1.

However, this device is applicable only if there are a sufficient number of openings in the walls of the building core and they are conveniently located, it does not allow installation of upper floors to the design marks, it has a complex device, it is focused on the use of predominantly rectangular in terms of floor coverings .

The closest in technical essence is a device for lifting floors and floors in buildings with load-bearing shafts and erected by a lifting method, including lifts with load lines 2 supported by the elements of the mine. AND THE FLOOR

A disadvantage of the known device is the need to disassemble it and re-compose it when relocating to the next mark, a large number of components, the need for installation work at height, the sensitivity of the device to mounting accuracy, the possibility of using the device only with a sufficient number and convenient location of functional openings in the walls. mine. In addition, it is necessary to strengthen the bearing zones of the mine openings due to significant loads resulting from the manifestation of the lever effect. The use of overhead lifting devices above the upper floor is difficult. The aim of the invention is to reduce the effects of loads on the walls of shafts, simplify the lifting of floors above the upper floor and increase the operational reliability of the device.

Claims (2)

This goal is achieved by the fact that the device for lifting overlaps and floors in buildings with bearing shafts, erected by the lifting method, including elevator elements supporting the elements of the mine with cargo drafts, is equipped with a support made of cross beams laid on top of the erected part of the mine to form protruding beyond the mine consoles, and the ends of the consoles have vertical protrusions, on which are installed the lifts. FIG. 1 shows a vertical section of a building and a device installed in a working position during lifting of the ceiling; in fig. 2 - the same plan. A device for lifting floors and floors in buildings with open shafts 1, columns 2 and leaning on those and other floors 3 includes a system of cross beams 4 forming their support for the device. Beams 4 are laid on top of the erected part of mine 1 with the formation of consoles, at the ends of which there are vertical protrusions (hemp) 5, on which elevators 6 with cargo drafts 7 are mounted. Columns 2 are not an essential element of the building. The beam system 4 can also be solved in the form of a spatial truss. After the lift has been dried, the device can be removed from the shaft for the time of its buildup, and then re-installed to a new level for the next series of lifts. The device can be rotated when erecting other buildings. The device is equally convenient for use in mines of various shapes. The elevation of the overlappings is carried out with the help of elevators, which are part of the device installed on top of the erected part of the platform, as well as elevators installed on the columns. In this case, all the lifts are combined into one centrally controlled system. There are options when there are several platforms in the building and, accordingly, several devices are used and when the building does not contain columns. The overlap is gripped by inserts or holes in the floors. Such an embodiment of the device reduces the laboriousness of lifting floors and floors and speeds up construction by reducing the number of operations, expanding the scope of the lifting method based on the platform in connection with the elimination of dependence on the presence and location of openings in the platform, increases the reliability of fastening the lifts from - due to a more uniform transfer of pressure from the weight of the lifted floor to the supporting sections of the walls and a lesser dependence of the magnitude of this pressure on the installation accuracy of the device, be overlap rise above the top floor. The magnitude of the effect may vary depending on the specific conditions of use. The most convenient use of the device for small in terms of size of the Schachta and in the construction of its prefabricated elements. The invention of the device for lifting floors and floors in buildings with load-bearing shafts, built by lifting method, including lifting elements based on elements of the mine with cargo drafts, characterized in that, in order to reduce the effects of loads on the walls of the shafts, to simplify lifting the floors above the upper floor and increase the operational reliability of the device, it is equipped with a support made of cross beams laid on top of the erected part of the platform with the formation of consoles protruding beyond the limits of the platform, with the ends of Olay have vertical projections which are installed lifts. Sources of information taken into account during the examination 1. USSR author's certificate No. 655803, cl. E 04 G 21/14, 1976. 2. USSR author's certificate number 618521, cl. E 04 G 21/14, 1977 (prototype).