RU2446244C2 - Inventory low-water bridge on screw piles - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: inventory low-water bridge on screw piles made of rolled beams of a span, differing by the fact that a unit of adjacent beams coupling is connected to the ends of each rolled beam of the span, being also connected to the next rolled beam, besides, each unit of adjacent beams coupling is mounted onto a ridge screw support made of two screw piles, having transverse flexible joints, a crossbar and a roller trolley.

EFFECT: bridge length extension.

1 cl, 1 dwg

Description

The invention relates to the field of construction and can be used in the restoration of bridge crossings on military roads in emergency situations and in the elimination of natural disasters.

Known constructions of low-water bridges made of wood and rolled metal ("Manual" Military bridges on rigid supports ", Military Publishing, 1982, p.3-5, Fig.1.1), as well as the construction of bridges from rolling beams (BCH) (" Reference the technical means of the road troops ”, M .: MO, 1990, p.132) and the small span bridge (IMF) (“ Military bridge training ”M: Voenizdat, 1992, p.273 fig. 6.49), intended for the construction (restoration) of bridges on military roads.

Closest to the invention is the construction of a bridge of rolling beams (BCH), taken as a prototype.

The disadvantage of the prototype is:

short bridge length (12 m), since there are no intermediate supports;

the lack of a bridge set of rolling beams (BCH) of the elements of conjugation of adjacent beams.

An object of the invention is to increase the length of the bridge.

The specified technical problem is solved due to the fact that the inventory low-water bridge on screw piles, consisting of rolling beams of a span structure, characterized in that to the ends of each rolling beam is attached an interface unit of adjacent beams, which is connected to the next rental beam, and each interface unit is mounted on an in-line screw support, consisting of two screw piles having transverse flexible connections, a crossbar and a support trolley.

Figure 1 shows the design of the inventory low-water bridge on screw piles, where are indicated:

pos.1 - rolling beam of the span;

Pos. 2 - a junction of adjacent beams;

pos.3 - roller trolley;

Pos. 4 - crossbar;

Pos. 5 - screw pile;

pos.6 - transverse flexible connection;

pos.7 - in-line screw support.

On the source bank, the first span is assembled from the rolling beams of the span 1, then the second and third spans of the bridge are assembled using the connecting beams of the adjacent beams 2, then the first in-line screw support 7 is assembled, which consists of screw piles 5, the crossbar of the in-line screw support 4, the roller carriage in-line screw support 3 and transverse flexible connections 6, then the next, after which the prepared spans are mounted.

The proposed low-water inventory bridge on screw supports is capable of blocking water barriers up to 50 m, and can also be used as a section of multi-span low-water bridges on military roads.

Claims (1)

Inventory low-water bridge on screw piles, consisting of span rolling beams, characterized in that to the ends of each span rolling beam is attached an interface unit of adjacent beams, which is connected to the next rolling beam, and each interface unit of adjacent beams is mounted on an in-line screw support, consisting of two screw piles having transverse flexible connections, a crossbar and a roller carriage.

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