CS232124B1 - Rectifiation mechanism of germ elements of a pier in overhung mounted bridge - Google Patents

Description

The invention relates to the rectification of elements above the pillar of a bridge formed by a flying assembly system.

The technology of flying bridges requires first assembly of the embryonic elements above the pillar, then setting them as a whole in space. The prefabricated elements of the bridge portal are mounted on the embryonic elements above the pillar after their installation in the space by a conventional method of flying assembly.

The method of horizontal and vertical rectification of embryonic elements above the pillar is known. Two horizontal frames are used for horizontal rectification. One frame is fixed to the bridge pillar via rectification screws and the other to the embryonic elements. The adjustment of the screws, which are tightened by hand, causes the elements to be rotated horizontally and displaced relative to the pillar. The vertical rectification is carried out by mechanical jacks, which are supported by a lower part on a friction steel support, located on the supporting steel structure outside the pillar.

The disadvantages of this known rectification are that the frames are very difficult, handling the rectification of the elements is difficult, tedious and laborious.

These drawbacks and drawbacks are overcome by rectifying the elements of the invention, which is based on the fact that horizontal and vertical rectification is concentrated in two ways using Teflon as a friction material and hydromechanical control.

The advantage of the invention is that it simplifies rectification, reduces labor and labor of the operator. Another advantage is a multiple reduction in the weight of the rectification mechanism and a shortening of the assembly time of the embryonic elements of the bridge pillars.

An exemplary embodiment of the invention is shown in the drawing, wherein FIG. 1 is a partial cross-sectional view of the elements and the pillar, and FIG. 2 shows a sub-view of the rectification mechanism.

In the upper part of the pillar 12 there is formed a space 13, open in the direction between the pillars, into which the base plate 4, which has a shoulder 5 in the middle, is inserted and anchored. In its outer parts are saddles with teflon layer 6. The slides 7 move in the lower part with the Teflon lining 8. In the upper part of the slide 7 a steel bar 3 is fastened, which passes through the pipe 14 in the element 9 up to the hydraulic cylinder 1 fitting into the seats 11 of the crossbeam 10 of the element 9. connected by steel rectification rods 15. Hydraulic cylinders 2 are interposed between the shoulder 5 of the thatch base 4 and the slide 7.

The hydraulic cylinders 1 and 2 are connected to an unmarked hydraulic system and are manually operated simultaneously by both pairs of hydraulic cylinders 1, 2.

When rectifying the elements, the operator first performs vertical rectification by means of hydraulic cylinders 1 and then horizontal rectification by means of hydraulic cylinders 2.

The lining 6, 8 reduce friction in the rectification of the elements. The rectification mechanism can be used to rectify the embryonic elements above the pillar of the bridge built by the flying assembly system.

Claims (2)

SUBJECT Rectification mechanism of germinal pillar girder elements of a girder bridge, characterized in that it consists of a steel foundation (4) with a hydraulic cylinder (2) and a slide (7) in which a steel rod (3) with a hydraulic cylinder is inserted (1j) resting on the seat (11) of the cross-member (10) of the element (9). We claim: Rectification mechanism according to claim 1, characterized in that Teflon liners (6, 8) are inserted on the steel base plate (4) at the top and on the slide (7j at the bottom).