SU922259A1 - Method of assembling structures - Google Patents

Description

(5) METHOD OF INSTALLATION OF CONSTRUCTIONS

I

The invention relates to methods for mounting vertical structures containing a trunk from individual supports, for example water towers, which are assembled at ground level and lifted with the help of winches by simultaneously shrinking the supports towards the center.

A known method of mounting vertical structures, in which the structure to be assembled is dissected into 2 parts, soybeans, are jointed with a hinge on which the auxiliary support is fixed, and each part is lifted to the design position by a crane

The disadvantage of this method is the use of crane equipment, the need for dismemberment of the structure, in the presence of auxiliary supports for lifting.

The closest to the invention to the technical essence and the achieved result is a method of mounting structures, mainly a water tower, the trunk of which is formed from separate supports pivotally connected to the tank support ring, including the assembly of the structure at ground level with the radial placement of the supports in the horizontal plane and the rise of the structure by shrinking the supports with Winches to the center followed by their fixation on the foundation 2.

The disadvantages of this method

10 are the need to use auxiliary supports for lifting, increased consumption of metal in the structure and the impossibility of constructing high-rise structures.

15

The purpose of the invention is to provide installation and dismantling of structures of increased height, elimination of bending forces and reduction of installation costs.

20

Claims (2)

This goal is achieved by the fact that the supports are assembled from individual elements, pivotally connected to each other, we take the elements adjacent to the support ring, set at an angle to the subsequent ones, then along the lower side of the supports pull the stabilizing cables with their fixation on each element , the attachment cables are attached to the lower ends of the supports and connected to the winches, and in the process of tightening the supports to the center and lifting, the support elements that occupy the design position are fixed. . Figures 1 and 2 show the initial moment of installation of structures; Fig.3 the moment of lifting the structure (tower). Installation of vertical structures, such as a water tower, by the proposed method is carried out as follows. On the foundation of the tower, a winch 1 is installed in its center, above which a support ring is mounted with a capacity of 2. Elements 3. Tower supports, which can be made T-shaped from reinforced concrete or triangular from metal, are placed at ground level (you can put them on carts, mounted on the rail track), with the first elements adjacent to the support ring, set at an angle to the next. All support elements are connected to each other and pivotally with the support ring. . Then, stabilizing cables 4 are mounted along the bottom side of the supports, which are attached to ka) dom element to restrict their rotation relative to each other; to the lower ends of the supports, tie cables 5 "connected to the drums of the winch 1 are secured. Lifting of the structure (towers) is carried out by means of simultaneous winding of the connecting cables on the drums of the winch. At the same time, stabilizing cables fixed on each element and defining predetermined angles of rotation of these elements, relative to each other, ensure the rise of supports along a parabolic curve formed from sagging. cables under their own weight of elements, removal from elements of bending moments, strict verticality and stability at the moment of lifting. Smooth lifting of supports without large load drops on the winch, as well as stability of the tower in the final stages of lifting, is provided by the fact that, as they move away from the support ring, the angles of rotation of the elements decrease from 5 to 0 and the length of the elements increases. As they rise, the support elements that assume the design position are fixed. At the end of the lift, the ends of the supports are rigidly fixed on the foundation and free them from tension cables, which can be used to build the following structures. Simultaneously with the installation of the trunk of the supports can be installed pipelines, elevator shaft, the elements of the stairs. In this case, the first element, for example, the internal staircase, is attached to the support ring and, as the structure is raised, the elements are built up at ground level. In some cases, if it is necessary to disassemble the structure, it is carried out in the reverse order. To ensure installation of the tower in limited areas (terrain features, existing buildings) and tower self-elevation at the initial stage of installation under the action of the self-weight of the supports, it is possible to resort to a temporary reverse contraction of the elements of the tower supports (this is shown in dotted lines). install vertical structures for various purposes: water towers, observation towers, translation masts, etc. By assembling the supports of individual elements, the number of which can be practically anything, and the presence of stabilizing cables, the construction of high-rise structures is provided. To implement the method, expensive equipment is not required, the whole complex of construction works is carried out on the ground. The invention method of mounting structures, mainly water tower, the trunk of which is formed from individual supports, pivotally connected to the tank support ring, including the assembly of the structure at ground level with the radial placement of the supports in a horizontal plane and lifting the structure by shrinking the supports with winches to the center with subsequent fixation 59 them on the foundation, which means that, in order to ensure the installation and dismantling of structures of increased height, elimination of bending forces and reduction of installation, support assembled from individual elements, the hinge connect them together, and the elements adjacent to the support ring, set at an angle to the next, then along the underside of the supports pull stabilizing cables with their fixation at each element, to the lower ends the supports attach the tie-down cables and connect them to the winches, and in the process of tightening the supports to the center and lifting, the support elements that occupy the design position are fixed. Sources of information taken into account during the examination 1. USSR author's certificate N ° 537177, -kl. E O N 12/00, 1973. 2. USSR author's certificate for application number 2779b5b / 29-33, cl. EH 12/30, U.06.79 (prototype).