CN218263426U

CN218263426U - Large-span steel structure bridge truss arch rib structure

Info

Publication number: CN218263426U
Application number: CN202221778097.5U
Authority: CN
Inventors: 吴文娟; 敖志中; 曾德光; 荣娟
Original assignee: Xinyu Xingang Liantian Structural Technology Co ltd
Current assignee: Xinyu Xingang Liantian Structural Technology Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2023-01-10
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a large-span steel structure bridge truss arch rib structure, which comprises a large-span bridge truss main body, wherein two upper chords are fixed at the top of the large-span bridge truss main body, and a plurality of shearing rods are welded between the two upper chords at equal intervals; the utility model discloses in, through the fixed a plurality of web members of slope between the last chord member of large-span bridge truss main part and the lower chord member, and weld the arch rib member of a plurality of circular arc structures between the adjacent a plurality of web members, make last chord member and lower chord member consolidate on the basis of original web member, promote the holistic support intensity of large-span bridge truss main part, anti deformation is effectual, weld the reinforcing bar rack that forms by many first screw-thread steels of arranging and the many second screw-thread steels of transversely arranging through the lower chord bottom surface at large-span bridge truss main part, make the reinforcing bar rack can regard as the support carrier who sets up the panel, and can promote the holistic structural strength of large-span bridge truss main part.

Description

Truss arch rib structure of large-span steel structure bridge

Technical Field

The utility model relates to a bridge truss technical field especially relates to a large-span steel construction bridge truss arch rib structure.

Background

The steel truss bridge is a structural system between beams and arches, and is a structure formed by integrally combining a bent upper beam structure and a pressure-bearing lower column. The steel truss bridge is provided with two lower chords which are arranged side by side and horizontally and an upper chord which is positioned above the lower chords, the two lower chords are connected through a cross beam, the two upper chords are connected with an upper flat beam of a cargo group, the upper chord and the lower chord are connected through web members, then panels are erected on the lower chords and the cross beam, and concrete is laid on the panels to form a road surface.

The connection of chord member about current large-span steel structure bridge truss is carried out by the web member usually, because the cover face of the supporting effect of web member is limited, leads to bridge truss support intensity to have the short slab, and is difficult to guarantee the roughness that the panel was laid when the panel was laid to chord member position down, and the great space in large-span steel structure bridge truss bottom is difficult to carry out setting up of panel, influences bridge truss's high-efficient construction.

Therefore, the truss arch rib structure of the large-span steel structure bridge has the advantages of high structural strength and convenience in erecting a panel, and further solves the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the arch rib structure of long-span steel structure bridge truss that provides.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides a large-span steel structure bridge truss arch rib structure, includes large-span bridge truss main part, the top of large-span bridge truss main part is fixed with two upper chords, and the equidistance welding has a plurality of shearing type poles between two upper chords, and the welding has the connecting rod between two adjacent shearing type poles, the bottom of large-span bridge truss main part is fixed with two lower chords, and the equidistance welding has a plurality of longerons between two lower chords to the bottom welding of two lower chords has the reinforcing bar rack, the welding has a plurality of web members and montant between upper chord and the lower chord, and the welding has a plurality of arch rib poles between two adjacent web members, and is a plurality of the middle part of encircleing the rib pole all welds with the montant mutually, the side welding of large-span bridge truss main part has a plurality of connected nodes, and a plurality of connected nodes weld with the junction of a plurality of web members and montant mutually respectively.

As a further description of the above technical solution: the reinforcing bar net rack is formed by welding a plurality of first deformed steel bars arranged in a longitudinal row and a plurality of second deformed steel bars arranged in a transverse row.

As a further description of the above technical solution: the whole large-span bridge truss main body is of a trapezoidal structure, and end blocks are welded at four corners of the bottom surface of the large-span bridge truss main body.

As a further description of the above technical solution: a plurality of web members are welded between the upper chord member and the lower chord member, a plurality of arch rib members welded between two adjacent web members are of circular arc structures and are multiple, the circle centers of the arch rib members are the same, and the diameters of the arch rib members are different.

As a further description of the above technical solution: the connecting nodes are of plate-shaped structures and are welded with the web members and the vertical rods respectively.

As a further description of the above technical solution: the vertical rods are arranged in a plurality of numbers, and the vertical rods are located between every two adjacent web members.

The utility model discloses following beneficial effect has:

the utility model discloses in, through the fixed a plurality of web members of slope between the upper chord and the lower chord of large-span bridge truss main part, and weld a plurality of circular arc structure's between a plurality of adjacent web members and encircle the rib, make upper chord and lower chord consolidate on the basis of original web member, promote the holistic support intensity of large-span bridge truss main part, anti deformation is effectual, weld the reinforcing bar rack that forms by many first screw-thread steels of arranging and the many second screw-thread steels of transversely arranging through the lower chord bottom surface at large-span bridge truss main part, make the reinforcing bar rack can regard as the support carrier of setting up the panel, and can promote the holistic structural strength of large-span bridge truss main part.

Drawings

Fig. 1 is a schematic structural view of a truss arch rib structure of a long-span steel structure bridge of the present invention;

fig. 2 is a top view of the truss arch rib structure of the long-span steel structure bridge of the present invention;

fig. 3 is the utility model relates to a steel bar net rack structure schematic diagram of large-span steel structure bridge truss arch rib structure.

Illustration of the drawings:

1. a large-span bridge truss body; 2. an upper chord; 3. a web member; 4. connecting the nodes; 5. a vertical rod; 6. a lower chord; 7. a steel bar net rack; 8. an arch rib bar; 9. an end-block; 10. a longitudinal beam; 11. shearing a profile rod; 12. a connecting rod; 13. a first deformed steel bar; 14. and second deformed steel bars.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

According to the utility model discloses an embodiment provides a large-span steel structure bridge truss arch rib structure.

The present invention will now be further described with reference to the accompanying drawings and detailed description, as shown in figures 1-3, the truss arch rib structure of the large-span steel structure bridge according to the embodiment of the utility model comprises a large-span bridge truss main body 1, two upper chords 2 are fixed on the top of the large-span bridge truss main body 1, a plurality of shear-shaped rods 11 are welded between the two upper chords 2 at equal intervals, connecting rods 12 are welded between the two adjacent shear-shaped rods 11, two lower chords 6 are fixed at the bottom of the large-span bridge truss main body 1, a plurality of longitudinal beams 10 are welded between the two lower chords 6 at equal intervals, and the bottoms of the two lower chords 6 are welded with a reinforcing steel bar net rack 7, a plurality of web members 3 and vertical rods 5 are welded between the upper chords 2 and the lower chords 6, a plurality of arch rib rods 8 are welded between two adjacent web members 3, the middle parts of the arch rib rods 8 are welded with the vertical rods 5, a plurality of connecting nodes 4 are welded on the side surface of the large-span bridge truss main body 1, the connecting nodes 4 are respectively welded with the connecting parts of the web members 3 and the vertical rods 5, by fixing the plurality of web members 3 obliquely between the upper chord 2 and the lower chord 6 of the large-span bridge truss body 1, and a plurality of arc-structure arch rib rods 8 are welded between a plurality of adjacent web members 3, so that the upper chord member 2 and the lower chord member 6 are reinforced on the basis of the original web members 3, the integral supporting strength of the large-span bridge truss main body 1 is improved, the anti-deformation effect is good, by welding a steel bar net rack 7 formed by welding a plurality of longitudinally arranged first deformed steels 13 and transversely arranged second deformed steels 14 on the bottom surface of a lower chord 6 of a large-span bridge truss main body 1, the reinforcing steel bar net rack 7 can be used as a support carrier for building a panel, and the overall structural strength of the large-span bridge truss main body 1 can be improved;

in one embodiment, reinforcing bar rack 7 is formed by welding a plurality of first screw-thread steels 13 of arranging in the vertical row and a plurality of second screw-thread steels 14 of transversely arranging, can carry out the shutoff to the space of long-span bridge truss main part 1 bottom through reinforcing bar rack 7, is favorable to the high efficiency to set up the panel.

In one embodiment, the whole large-span bridge truss main body 1 is of a trapezoid structure, end blocks 9 are welded at four corners of the bottom surface of the large-span bridge truss main body 1, and the stability of the horizontal placement of the large-span bridge truss main body 1 can be guaranteed through the end blocks 9.

In one embodiment, a plurality of web members 3 are welded between the upper chord member 2 and the lower chord member 6, a plurality of rib members 8 welded between two adjacent web members 3 are all arc-shaped structures, the circle centers of the plurality of rib members 8 are the same, the diameters of the plurality of rib members 8 are different, the supporting strength of the side surface of the large-span bridge truss main body 1 can be improved through the plurality of arc-shaped rib members 8, and the deformation resistance is high.

In one embodiment, the connecting nodes 4 are plate-shaped structures, and the connecting nodes 4 are welded to the web members 3 and the vertical rods 5, respectively, so that the firmness of the connection between the web members 3 and the vertical rods 5 and the main body 1 of the long-span bridge truss can be increased through the connecting nodes 4.

In one embodiment, the vertical rods 5 are provided in plurality, and a plurality of vertical rods 5 are arranged between two adjacent web members 3, so that a vertically oriented support structure can be provided between the upper chord 2 and the lower chord 6 through the vertical rods 5.

The working principle is as follows:

during the use, through fixing a plurality of web members 3 in the slope between last chord 2 and the lower chord 6 of large-span bridge truss main part 1, and weld the arch rib 8 of a plurality of circular structure between a plurality of adjacent web members 3, make last chord 2 and lower chord 6 consolidate on original web member 3's basis, promote the holistic support intensity of large-span bridge truss main part 1, anti deformation is effectual, weld the reinforcing bar rack 7 that forms by the welding of the second screw-thread steel 14 of arranging by indulging a plurality of first screw-thread steels 13 of arranging and transversely through 6 bottom surfaces of the lower chord of large-span bridge truss main part 1, make reinforcing bar rack 7 can regard as the support carrier who sets up the panel, and can promote the holistic structural strength of large-span bridge truss main part 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a large-span steel structure bridge truss arch rib structure, includes large-span bridge truss main part (1), its characterized in that: the top of large-span bridge truss main part (1) is fixed with two upper chords (2), and the equidistance welding has a plurality of types of cutting pole (11) between two upper chords (2), and has connecting rod (12) between two adjacent types of cutting pole (11), the bottom of large-span bridge truss main part (1) is fixed with two lower chords (6), and the equidistance welding has a plurality of longerons (10) between two lower chords (6) to the bottom welding of two lower chords (6) has reinforcing bar net rack (7), the welding has a plurality of web members (3) and montant (5) between upper chord (2) and lower chord (6), and has a plurality of hunch ribbed bar (8) between two adjacent web members (3), and is a plurality of hunch ribbed bar (8)'s middle part all welds mutually with montant (5), the side welding of large-span bridge truss main part (1) has a plurality of connected node (4), and a plurality of connected node (4) weld with the junction of a plurality of web members (3) and montant (5) respectively mutually.

2. The truss arch rib structure of the large-span steel structure bridge according to claim 1, wherein: the reinforcing steel bar net rack (7) is formed by welding a plurality of first deformed steel bars (13) arranged in a longitudinal row and a plurality of second deformed steel bars (14) arranged in a transverse row.

3. The truss arch rib structure of the large-span steel structure bridge according to claim 1, wherein: the whole large-span bridge truss main body (1) is of a trapezoidal structure, and end blocks (9) are welded at four corners of the bottom surface of the large-span bridge truss main body (1).

4. The truss arch rib structure of the large-span steel structure bridge according to claim 1, wherein: a plurality of web members (3) are welded between the upper chord (2) and the lower chord (6), a plurality of rib-arching rods (8) welded between two adjacent web members (3) are arc-shaped structures, a plurality of the circle centers of the rib-arching rods (8) are the same, and the diameters of the rib-arching rods (8) are different.

5. The truss arch rib structure of the large-span steel structure bridge according to claim 1, wherein: the connecting nodes (4) are of plate-shaped structures, and the connecting nodes (4) are welded with the web members (3) and the vertical rods (5) respectively.

6. The truss arch rib structure of the large-span steel structure bridge according to claim 1, wherein: the vertical rods (5) are arranged in a plurality of numbers, and the vertical rods (5) are arranged between two adjacent web members (3).