RU1812263C - Guying system - Google Patents

Abstract

The byte system includes a pylon, a stiffening beam with a carriageway, cables and damping devices for cables, each of which has a pair of cages enclosing adjacent cables, and an elastic element attached with ends to the cages. Guanting devices are located on the cables on both sides of the pylon, with some of the devices located at the same height from the level of the carriageway, and the centers of the elastic elements of the other part of the devices are located in vertical planes at the same distance from the axis of the pylon. Each elastic element is made in the form of a rod with adjustable and fixed length, and is provided at the ends of the rod. flat flanges with oval holes. In places where the elastic element is attached to the clips, friction material gaskets are placed, and the clip is made of a material with vibration-absorbing properties. 3 ill. ate with

Description

The invention relates to bridge engineering and can be used in cable-stayed bridges to damp cable-stay vibrations caused by moving and wind loads.

The aim of the invention is to increase reliability by preventing the resonance vibrations of the cables of the system from moving and wind loads and simplifying their installation and operation.

Figure 1 shows a cable-stayed system with damping devices; figure 2 is a sectional view of the device assembly; Fig. 3 shows an elastic element in the form of a tie.

Cable-stayed bridge Consists of pylon 1, cable-stayed 2, stiffeners 3, clips 4, forming parts 5 and 6 of the devices. Each clip 4 enclosing the cable guy 2 is made of two halves connected by bolts. Besides,

the clips 4 are crimped by metal brackets 7, to which the elastic elements in the form of a rod 8 are pivotally attached. The connecting rod 8 of a cylindrical shape has flat flanges 9 and 10 with oval holes 11,13 at the ends, and the hole 11 is oriented with the larger side along the longitudinal axis rods 8, and the hole 13 is on the transverse axis. At the joints between the brackets 7 and the link 8, strips of friction material 14, for example, ferodo tape, are glued. The ends of the metal brackets 7 and the strips of friction material 14 attached to them are provided with coaxial round holes 15. The diameter of which is equal to the diameter of the pressure bolts 16. Strips of friction material 17 with corresponding identical

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holes 11 and 13, while the width of etiovalny hole 13, outlined along the holes is equal to the diameter of the pressure bolt circle with a radius equal to the distance 16. Between the metal clips 4 the line between the hinges damping

and ropes; cable-stayed 2 located 18 devices, flange 10 is connected to the rod 8

made of soft material, for example, with an aluminum-threaded connection, allowing from:; : change the length of the rod 8 when installing the device. The device operates as follows in place, and the lock nut 12 on the flange 10

 zbm. ; 7 ;; : allows fixing the wind-thrust established by dynamic influence 8. Thus; proposed

The solution of a byte system eliminates the need for a new and mobile load of the cable-stayed cable: they perform complex spatial co-linking of resonant oscillations and lightness. ; ; ; : / prints containment

The location of the devices on the same cable-stay ensures reliability of the entire system from the level of the carriageway to the bridge4. and at the same distance from the axis of the pylon 15

Claims (1)

allows shifting the spectrum of vibrations to a hundred higher values, thicken d almost continuous. The Ventoyai system, including pshon, This ensures the impossibility of the aoa-stiffness beam with the carriageway, the guy nicknames of the regular resonance wheels of the device for damping white vibrations, bany.vant, as in a field of wind loads, each of which has a pair of cages, also due to temporary moving loads that have adjacent cables, and an elastic band. In addition, an additional damping, attached by the ends to the cages, vibrations of the cables is carried out in a damping, characterized in that, in order to of dry trenching devices at an increase in unreliability due to the prevention of the movable connection of the 8th m-pasotia HCHbtx oscillation bracket 7th due to friction of the surface of the system nrsti friction bands 14 and It..eter loads and simplify installation and EFFICIENCY OF EXTINGUISHED VIB .2 OPERATIONS OF OPERATIONS, devices are located on we also determine the optimal clamping on 30 pins on both sides of the pylon, and part press bolts 16, equipped with springs -devices: located on the same high washers 10 with a stopper 20, a hundred from the level of the carriageway, and the centers ensuring persistence; their tension of the elastic elements of another part of the devices wear of the friction material, are located in vertical planes, the presence on a motionlessly connected located at the same distance from  tight 8 flange 9 and friction parts of the pylon axis, with sfoM each elastic element with an oval hole, the width of which is made in the form of a bar with adjustable equal to the diameter of the pressure bolt 16, obes and fixed length, and at the ends of t ha The mutual movement of the flange 0 is provided with flat flanges with oval and brackets 7 and the damping of vibrations in the device .40 holes, one of which is larger along the longitudinal axis of the vibrations of adjacent cables in the isron plane cable-stayed planes. vt gi, and the other along the transverse axis, we take Damping vibrations of adjacent cables at the points of attachment of the elastic element to In the case of mutual mixing, in the horizontal holders, spacers from the friction plane are placed, which is existing in the damping material, and the holders are made of device, where the flat flange 10 of the material with vibration-absorbing properties / friction strip 17, equipped with holes. .