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(19)

RU

(11)

2 008 392

(13)

C1

(51)

IPC

(21) (22)

Application

5019372/33, 1991-12-27

(22)

Actual filing date

1991-12-27

(45)

Published

1994-02-28

(72)

Inventor

Brattsev Ju.V.Kotljarova O.G.Odintsov G.A.Khinevich G.A.

(73)

Holder

Konstruktorskoe Bjuro Transportnogo Mashinostroenija

BRIDGE INTERMEDIATE GANTRY PIER Russian patent published in 1994 - IPC

Abstract RU 2008392 C1

FIELD: construction. SUBSTANCE: bridge intermediate gantry pier has a cross extensible supporting beam and two pairs of length combined supporting pillars, upper ends of which are hinged to the beam. Every supporting pillar upper part is made in the form of two distancing up branches, low parts of which are joined by an intermediate base. Every pillar low part is mounted on a supporting slab. Supporting slabs of every pair of pillars are joined by a supporting slat with a spur forming. Supporting slabs and supporting slats are joined to each other correspondingly by edge hinges and a middle hinge. The pier has a rope in a block system, mounted on every pair of pillars and made in the form of a polyspast with a compensation apparatus. The apparatus has guides, a spring slider, stopping and guiding cups. Guides are made as slats with L-shaped cross section. The slider also has L-shape. One of its flanges has an axis-rod with the polyspast movable blocks slipped over it. The polyspast immovable block is fixed on the upper part of a pillar. The rope, one end of which is fixed to the middle hinge, is placed in the immovable block of polyspast and in series rounds its movable blocks, mounted on pillars of every pair. The other end of the rope is connected to the drive. EFFECT: bridge intermediate gantry pier is very useful in bridge construction. 2 cl, 6 dwg

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RU 2 008 392 C1

Authors

Brattsev Ju.V.

Kotljarova O.G.

Odintsov G.A.

Khinevich G.A.

Dates

1994-02-28—Published

1991-12-27—Filed

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