CN219364363U - Long span arch bridge suspension bridge deck system longitudinal reinforcement device - Google Patents

Abstract

The utility model discloses a long-span arch bridge suspension bridge deck system longitudinal reinforcement device which comprises a plurality of suspension rod cross beams, wherein the suspension rod cross beams are uniformly and equidistantly distributed below bridge decks, steel backing plates are respectively arranged at the two opposite end surfaces of each suspension rod cross beam in a longitudinal direction, the steel backing plates are uniformly and equidistantly arranged in a plurality along the length direction of the suspension rod cross beams, node plates are respectively and vertically arranged at the upper end and the lower end of each steel backing plate, a plurality of stiffening plates are respectively arranged at the mutually distant ends of the two node plates, a steel longitudinal beam is arranged between the two node plates, and the two suspension rod cross beams which are mutually distant are mutually connected through the steel longitudinal beam.

Description

Long span arch bridge suspension bridge deck system longitudinal reinforcement device

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a long-span arch bridge suspension type bridge deck system longitudinal reinforcement device.

Background

The bridge deck system of the long span middle bearing type suspender arch bridge built in early stage of China is mainly suspended, the load of the structure is transferred to the cross beam through the bridge deck, then transferred to the suspender through the cross beam, and finally transferred to the arch rib through the suspender. Although the structure has definite force transmission path and convenient construction, if a certain suspender of the bridge deck is broken to easily cause bridge deck collapse accidents, investigation proves that the structure is adopted by a plurality of collapsed bridges in recent years, the system has lower structural redundancy and higher safety risk, and the use requirement of the large-span arch bridge suspension bridge deck cannot be met.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a long-span arch bridge suspension type bridge deck system longitudinal reinforcing device which comprises a plurality of boom cross beams, wherein the boom cross beams are uniformly and equidistantly distributed below bridge decks, steel backing plates are respectively arranged at the two opposite end faces of the boom cross beams, the steel backing plates are uniformly and equidistantly arranged along the length direction of the boom cross beams, node plates are respectively and vertically arranged at the upper end and the lower end of each steel backing plate, a plurality of stiffening plates are respectively arranged at the mutually distant ends of the two node plates, steel longitudinal beams are arranged between the two node plates, and the two mutually distant boom cross beams are mutually connected through the steel longitudinal beams.

Optionally, at least three steel backing plates are uniformly and equidistantly arranged on one end face of the boom cross beam, the steel backing plates at two ends are connected with each other through anchor bolts, and the anchor bolts penetrate through the boom cross beam.

Optionally, two ends of the boom cross beam in the length direction are respectively provided with a boom, and the top end of the boom is connected with the arch rib.

Optionally, a plurality of through holes are formed in the steel backing plate, anchor bolts are arranged in the through holes, and steel adhesive is arranged between the steel backing plate and the boom cross beam.

Optionally, the steel longitudinal beam adopts H-shaped steel cross section setting, and three of mutual parallel arrangement are a set of perpendicular to between two jib crossbeams.

The beneficial effects of the utility model are as follows: the structural design is reasonable, and through setting up steel backing plate, gusset plate, stiffening plate and steel longeron to the vertical reinforcement of suspension bridge deck system, can effectively prevent to appear because of the bridge floor collapse accident that a certain jib of bridge floor breaks and leads to, effectively improved structural safety redundancy and bridge structural rigidity, its dynamic performance has also obtained the improvement of certain degree.

Drawings

The utility model will now be described by way of example and with reference to the accompanying drawings in which:

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic illustration of the construction of the present utility model with a large span arch bridge suspension deck;

FIG. 3 is a schematic view of the front view of the boom cross member, boom and steel pad of the present utility model;

FIG. 4 is a schematic view of the structure of two adjacent boom cross members and steel stringers in the present utility model;

FIG. 5 is a schematic view of the structure of the gusset plate, stiffener, steel stringer and steel tie plate of the present utility model.

In the figure: 1. a boom cross beam; 2. a boom; 3. a steel backing plate; 4. a gusset plate; 5. stiffening plates; 6. a steel longitudinal beam; 7. a bridge deck; 8. a through hole; 9. an anchor bolt; 10. and (3) an arch rib.

Detailed Description

Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, welded, riveted, bonded, etc., or may be a removable connection, threaded connection, keyed connection, pinned connection, etc., or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The long span arch bridge suspension bridge deck system longitudinal reinforcement device comprises a plurality of boom cross beams 1, wherein the boom cross beams 1 are uniformly and equidistantly distributed below a bridge deck 7, steel backing plates 3 are respectively arranged at two opposite end faces of the boom cross beams 1, the steel backing plates 3 are uniformly and equidistantly arranged along the length direction of the boom cross beams 1, node plates 4 are respectively and vertically arranged at the upper end and the lower end of each steel backing plate 3, a plurality of stiffening plates 5 are respectively arranged at the mutually far ends of the two node plates 4, steel longitudinal beams 6 are arranged between the two node plates 4, and the two mutually far boom cross beams 1 are mutually connected through the steel longitudinal beams 6. It should be noted that, the boom crossbeam 1 is connected with the bridge deck 7 through the counter anchor bolt, and the stiffening plate 5 is at least three in parallel arrangement and is a set of, and divide into two sets of about on the gusset plate 4, and gusset plate 4 and stiffening plate 5, steel longeron 6, steel backing plate 3 all pass through welded fastening connection.

Specifically, at least three steel backing plates 3 are uniformly and equidistantly arranged on one end face of the boom cross beam 1, the steel backing plates 3 at two ends are connected with each other through anchor bolts 9, and the anchor bolts 9 penetrate through the boom cross beam 1. It should be noted that, the anchor bolts 9 are provided with nuts in a matching way, and two anchor bolts 9 are symmetrically arranged on the single steel backing plate 3 to be installed and matched on the boom cross beam 1.

Specifically, the boom 2 is respectively arranged at two ends of the boom cross beam 1 in the length direction, and the top end of the boom 2 is connected with the arch rib 10. The rib 10 is provided on the bridge deck 7.

Specifically, a plurality of through holes 8 are formed in the steel backing plate 3, anchor bolts 9 are arranged in the through holes 8, and steel adhesive is arranged between the steel backing plate 3 and the boom cross beam 1. It should be noted that the arrangement of the adhesive steel will strengthen the stability between the steel pad 3 and the boom cross beam 1.

Specifically, the steel longitudinal beams 6 are arranged by adopting H-shaped steel sections, and three steel longitudinal beams are arranged in parallel and are perpendicular to the space between the two boom cross beams 1. It should be noted that, the arrangement of three steel stringers 6 as a group will improve the longitudinal reinforcement supporting force between the boom crossbeams 1, and improve the structural safety redundancy and the structural rigidity of the bridge.

The working principle of the specific embodiment is as follows: firstly, hoisting a prefabricated boom beam 1 to a required working position, then pouring and fixing the boom beam with a bridge deck 7 in a matched mode, then installing a steel base plate 3 at a required position according to the size of the boom beam 1, installing and fixing the steel base plate 3 through a through hole 8 matched with an anchor bolt 9, welding and processing in advance on the steel base plate 3 to be provided with a gusset plate 4 and a stiffening plate 5, finally hoisting a steel longitudinal beam 6 between the gusset plates 4 in sequence, and welding and fixing the steel longitudinal beam 6 after positioning is completed, so that the longitudinal reinforcement of a suspended bridge deck system is met, and the structural safety redundancy and the structural rigidity of a bridge are effectively improved.

The utility model is not limited to the specific embodiments described above. The utility model extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.

Claims (5)

1. A long span arch bridge suspension bridge deck system longitudinal reinforcement device is characterized in that: including the jib crossbeam, the jib crossbeam sets up to a plurality of, and evenly equidistant distribution in the decking below, the jib crossbeam sets up the steel backing plate separately from both ends face, the steel backing plate is followed the even equidistant setting up a plurality of jib crossbeam length direction, the steel backing plate upper and lower both ends set up the gusset plate perpendicularly respectively, two the end is kept away from each other to the gusset plate sets up a plurality of stiffening plates respectively, two set up the steel longeron between the gusset plate, two that keep away from each other the jib crossbeam passes through steel longeron interconnect.

2. A long span arch bridge suspended deck system longitudinal reinforcing apparatus according to claim 1, wherein: at least three steel backing plates are uniformly and equidistantly arranged on one end face of the boom cross beam, the steel backing plates at two ends are connected with each other through anchor bolts, and the anchor bolts penetrate through the boom cross beam.

3. A long span arch bridge suspended deck system longitudinal reinforcing apparatus according to claim 1, wherein: the two ends of the boom cross beam in the length direction are respectively provided with a boom, and the top end of the boom is connected with the arch rib.

4. A long span arch bridge suspended deck system longitudinal reinforcing apparatus according to claim 1, wherein: the steel backing plate is provided with a plurality of through holes, the anchor bolts are arranged in the through holes, and steel adhesive is arranged between the steel backing plate and the boom cross beam.

5. A long span arch bridge suspended deck system longitudinal reinforcing apparatus according to claim 1, wherein: the steel longitudinal beams are arranged in an H-shaped steel section mode, and three steel longitudinal beams are arranged in parallel and are perpendicular to the position between the two boom cross beams.