SU1414920A1 - Suspension bridge - Google Patents

Abstract

The invention relates to bridge construction and can be used in the construction of double-axle bridge bridges. The aim of the invention is to reduce the material consumption of the structure, increase the rigidity of the flooring and reduce its S-shaped bending. The bridge includes coastal 1 and anchor 2 supports, pylons 3, carrying cables 4 and 5 fixed at their tips at their peaks, and fixed at the ends of the cords on shore supports 1. Pylons 3 are connected to anchor supports 2 by means of 6. Flooring 7 is made in the form of two sections of a national team from blocks 8 of a beam 9 of stiffness of variable height delineated below by sagging curves from the load of carrying cables 4 and 5, where they are located below the carriageway 7. Bearing cables 4 and 5 in areas where they pass roadway 7 are located plane of the side planes stiffening girder 9, and in regions where they pass below the roadway 7 - 9 under the beam stiffness uniformly across its width. Carrier cables 4 and 5 are rigidly interconnected at intersection points 10, and under rigidity beam 9, cables 4 and 5 are located in the slots of blocks 8, supporting the transverse beams of blocks 8. With a large value of the bridge, Beam 9 stiffness can be broken into three or more equal to each other spans of variable height, while the middle sections are supported on the bottom of the carrier cables, all ends of which are fixed on the tops of the pylons 3. 1 3.p. f-ly, 4 ill. (Y)

Description

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The invention relates to bridge construction and can be used in the construction of two-way bridge bridges ...

The purpose of the invention is to reduce the material consumption of the structure, increase the rigidity of the flooring and reduce its S-shaped bending.

“In FIG. 1 shows the facade of a bridge with two sections of a stiffening beam; in fig. 2 - the same, top view; on fig.Z- the facade of the bridge with three sections of the beam stiffness; in fig. 4 - the same, top view.

: The bridge contains coastal 1; and anchor 2 supports, pylons 3, aakpen- 1 at one end, on their tops | unsupported cables 4 and 5, at the other ends- | MI fixed on the coastal supports | 1. By holes 6 pylons 3 are connected with. 1 anchor supports 2. The roadway laying | of part 7 is made in the form of two sections of the assembly of blocks 8 of the beam 9 of the rigid structure of variable height, outlined below by the sagging curves from the load biecyinHx of cables 4 and 5. where they are located below the carriageway 7. Support cables 4 and 5 in the areas where the pipes pass above the carriageway 7, (located in the plan behind the side planes: with the remaining rigidity beams 9, and in the sections where they pass below the carriageway 7) under the beam 9 stiffness is equal to its width.

The carrier cables 4 and 5 are rigidly interconnected at the points of mutual intersection 10, and under the stiffening beam 9 the cables 4 and 5 are located in the slots of the blocks 8, supporting the transverse beams 11 of the blocks 8.

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With a large span of a bridge, the stiffening beam 9 can be broken into three or more equal in length to a section of variable height, while the middle sections 12 rest on the supporting cables 13, all ends of which are fixed on the tops of the pylons 3.

Claims (2)

1. A new bridge, including shore supports, pylons, road pavement, supporting, supporting road pavement, cables intersecting between sbbe and fixed at one end of the pylons, characterized in that, in order to reduce the material intensity of the structure, increase the rigidity of the floor and reducing its S-shaped bend, the flooring of the carriageway is executed in the form of two sections of a stiffness beam of variable cross section, outlined below by sagging curves from the load of carrier cables, the other ends of which are fixed to the shore supports, wich vyshte pro-. In the other part of the hen, the cables are located behind the side planes of the rigidity beam, and below the roadway. - under the beam stiffness evenly over it. wide and rigidly interconnected at the intersection points. 2. The bridge according to claim 1 is different from the fact that the stiffening beam is made along the length of three or more sections of alternating cross-section, the middle of which are supported on the bottom of the carrier cables, all ends of which are attached to the pylons. .