CN220643830U - Large-load bridge steel structure - Google Patents

Abstract

The utility model discloses a high-load bridge steel structure which comprises main beams, inclined strut frames and underframe plates, wherein first reinforcing ribs are arranged between the main beams, second reinforcing ribs are arranged between the underframe plates, supporting steel transverse plates are paved on the surfaces of the underframe plates, the underframe plates are connected through reinforcing steel ribs, the reinforcing steel ribs are connected with underframe steel trusses through slotted holes, supporting steel plates are arranged between the underframe steel trusses, steel arches are arranged at the joints of the inclined strut frames and the main beams, and two ends of each steel arch are welded and fixed with the side surfaces of the main beams and the inclined strut frames through reinforcing rib plates. According to the utility model, through the reinforcement connection and support protection design of the steel structure bridge, the steel structure bridge can bear larger vertical load, and meanwhile, the side surface of the steel structure bridge is subjected to tensile type safety protection, so that the lateral load capacity of the steel structure bridge is improved, the whole bridge body has good structural rigidity and load bearing capacity, and the safety service life of the bridge is prolonged.

Description

Large-load bridge steel structure

Technical Field

The utility model relates to the technical field of bridge structures, in particular to a high-load bridge steel structure.

Background

A rigid bridge is a structural system between a beam and an arch that is a structure of a bent upper beam (or slab) structure integrally joined to a pressure-bearing lower column (or pier). The bending rigidity of Liang Yinzhu is relieved due to the rigid connection of the beams and columns, and the whole system is of a buckling structure and also of a structure with thrust. Is a bridge with a main bearing structure of a bridge body being a rigid frame. The clearance height under the bridge can be increased, and the bridge is commonly used as a flying lead bridge.

The Chinese patent document with publication number of CN207904733U discloses a large-weight and large-load steel structure bridge spandrel girder, which relates to a bridge bearing. The steel structure comprises C-shaped steel, H-shaped steel and I-shaped steel, one end of the I-shaped steel is connected with the top of the C-shaped steel, the other end of the I-shaped steel is connected with the top of the H-shaped steel, the first steel beam, the second steel beam and the third steel beam are all vertically arranged, the first steel beam and the second steel beam are arranged in parallel, the second steel beam and the third steel beam are vertically arranged, the bottom of the C-shaped steel and the bottom of the H-shaped steel are all connected with a bottom plate, the bottoms of the two bottom plates are all connected with supporting seats, the first side beam and the second side beam which are positioned on the same side of the first steel beam are connected through a plurality of first T-shaped steels, the two adjacent first T-shaped steels which are positioned on the same side of the first steel beam are connected through the second T-shaped steels, and the two first T-shaped steels which are positioned on the two sides of the first steel beam and the bottommost are connected through a plurality of angle steels. The utility model has simple structure, convenient processing and maximum bearing capacity up to 2500 tons.

The bridge in the prior art has poor lateral tensile load capacity due to the fact that the bridge does not have good lateral connection reinforcing effect, so that a high-load bridge steel structure needs to be developed to solve the problems.

Disclosure of Invention

The utility model aims to provide a high-load bridge steel structure, which aims to solve the problem that the lateral tensile load capacity of a bridge in the prior art provided in the background art is poor due to the fact that the bridge does not have a good lateral connection reinforcing effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a big load bridge steel construction, includes main beam, diagonal brace and chassis board, install first reinforcement rib between the main beam, install the second reinforcement rib between the chassis board, the surface of chassis board is laid and is supported the steel diaphragm, is connected through consolidating the steel rib between the chassis board, consolidate the steel rib and be connected with the underframe steel truss through the slotted hole, be provided with the braced steel sheet between the underframe steel truss, the junction of diagonal brace and main beam is provided with the steel bow member, and the both ends of steel bow member are through consolidating gusset and main beam, diagonal brace side surface welded fastening.

Preferably, two main cross beams are arranged and are distributed in parallel, and the main cross beams are fixedly connected through reinforcing cross bars.

Preferably, the first reinforcing ribs and the second reinforcing ribs are of crossed structures, two ends of the second reinforcing ribs are fixedly connected with the reinforcing side plates through reinforcing steel anchor plates, and reinforcing ribs are arranged in the reinforcing side plates.

Preferably, a bevel block frame is arranged between the main beam and the underframe plate, the surfaces of the two sides of the underframe plate are provided with protective side frames, and the front ends of the protective side frames are connected with the reinforcing side plates through welding.

Preferably, the bottom end of the reinforcing side plate is fixedly connected with the underframe plate through a supporting rib plate.

Preferably, the bottom end both sides position department of chassis board is provided with the support bridge pier.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the reinforced connection and support protection design of the steel structure bridge, the steel structure bridge can bear larger vertical load, and meanwhile, the side face of the steel structure bridge is subjected to tensile type safety protection, and the inclined baffle frame, the inclined support frame and the steel arch frame are matched with the reinforced rib structure, so that the connection of the two sides of the bridge and the bridge main body is promoted to be more compact and stable, the lateral tensile load capacity of the bridge is improved, the whole bridge body has good structural rigidity and load bearing capacity, and the safety service life of the bridge is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial installation structure of the present utility model;

fig. 3 is a schematic view of a chassis structure according to the present utility model.

In the figure: 1. a main beam; 2. the first reinforcement ribs; 3. reinforcing the cross bar; 4. a slant stop rack; 5. a steel arch; 6. reinforcing rib plates; 7. a diagonal bracing frame; 8. a chassis plate; 9. supporting a steel transverse plate; 10. a bottom frame steel truss; 11. supporting the bridge abutment; 12. a protective side frame; 13. reinforcing the side plates; 14. reinforcing ribs; 15. a support rib plate; 16. reinforcing the reinforcing bars; 17. a steel bar anchor plate; 18. the second reinforcing ribs; 19. and supporting the steel plate.

Detailed Description

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.

Referring to fig. 1-3, an embodiment of the present utility model is provided: the utility model provides a big load bridge steel construction, including main beam 1, bracing frame 7 and foundation plate 8, install first reinforcement rib 2 between the main beam 1, install second reinforcement rib 18 between the foundation plate 8, support steel diaphragm 9 has been laid on the surface of foundation plate 8, be connected through strengthening reinforcement rib 16 between the foundation plate 8, it is connected with underframe steel truss 10 through the slotted hole to consolidate reinforcement rib 16, be provided with supporting steel plate 19 between the underframe steel truss 10, the junction of bracing frame 7 and main beam 1 is provided with steel bow member 5, the both ends of steel bow member 5 are through strengthening gusset 6 and main beam 1, bracing frame 7 side surface welded fastening.

Further, the main cross beam 1 is provided with two, and parallel distribution between two main cross beams 1, through consolidate horizontal pole 3 fixed connection between the main cross beam 1, through being provided with consolidate horizontal pole 3, can improve the inseparable stability of connection between the main cross beam 1.

Further, the first reinforcing ribs 2 and the second reinforcing ribs 18 are of a cross structure, two ends of the second reinforcing ribs 18 are fixedly connected with the reinforcing side plates 13 through the reinforcing anchor plates 17, the reinforcing ribs 14 are arranged in the reinforcing side plates 13, the first reinforcing ribs 2 and the second reinforcing ribs 18 are arranged at the upper and lower parts of the bridge, the top and the bottom of the bridge can be enabled to be more stable, and the cross type structure is convenient to play a role in stabilizing triangles.

Further, install the skew frame 4 between main beam 1 and the chassis board 8, the both sides surface of chassis board 8 is provided with protection side frame 12, and the front end of protection side frame 12 is connected with reinforcing side board 13 through the welding, and protection side frame 12 is used for carrying out spacing protection to the both sides of chassis board 8, through carrying out reinforcing connection fixedly between chassis board 8 and main beam 1 for bridge bulk connection is firm more.

Further, the bottom of the reinforcing side plate 13 is fixedly connected with the foundation plate 8 through a supporting rib plate 15, and the supporting rib plate 15 further reinforces and stabilizes the foundation plate part of the bridge.

Further, the bottom end both sides of the foundation plate 8 are provided with supporting bridge abutments 11, and the supporting bridge abutments 11 function as supporting bridges.

Working principle: when in use, the first reinforcing ribs 2 are arranged between the main beams 1, the second reinforcing ribs 18 are arranged between the underframe plates 8, the top and the bottom of the bridge can be more stable by arranging the first reinforcing ribs 2 and the second reinforcing ribs 18 at the upper and lower parts of the bridge, the crisscross design is convenient for playing a role in stabilizing triangles, the main beams 1 are fixedly connected through the reinforcing cross bars 3, the tight stability of connection between the main beams 1 can be improved by arranging the reinforcing cross bars 3, the supporting steel cross plates 9 are paved on the surfaces of the underframe plates 8, the underframe plates 8 are connected through the reinforcing steel ribs 16, the reinforcing steel ribs 16 are connected with the underframe steel truss 10 through slots, the bottom of the underframe plate 8 can be stably supported and protected by utilizing the staggered connection and fixation of the reinforcing steel bars 16 and the underframe steel truss 10, so that the longitudinal load bearing capacity of the underframe plate is improved, a supporting steel plate 19 is arranged between the underframe steel trusses 10, the joint of the diagonal bracing 7 and the main beam 1 is provided with the steel arch 5, the two ends of the steel arch 5 are fixedly welded with the side surfaces of the main beam 1 and the diagonal bracing 7 through the reinforcing rib plates 6, and the diagonal bracing 4, the diagonal bracing 7 and the steel arch 5 are matched with the reinforcing rib structures, so that the two sides of a bridge can be promoted to be connected with the bridge main body more tightly and stably, the lateral tensile load bearing capacity of the bridge is improved, and the whole bridge has good structural rigidity and load bearing capacity.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Standard parts used in the application document can be purchased from the market, the specific connection modes of all parts are connected by adopting conventional means such as mature bolts, rivets and welding in the prior art, and machines, parts and equipment are of conventional types in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that specific description is not made here.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a big load bridge steel construction, includes main beam (1), bracing frame (7) and chassis board (8), its characterized in that, install first reinforcement rib (2) between main beam (1), install second reinforcement rib (18) between chassis board (8), support steel diaphragm (9) have been laid on the surface of chassis board (8), are connected through strengthening reinforcement rib (16) between chassis board (8), consolidate reinforcement rib (16) and be connected with underframe steel truss (10) through the slotted hole, be provided with supporting steel plate (19) between underframe steel truss (10), the junction of bracing frame (7) and main beam (1) is provided with steel bow member (5), and the both ends of steel bow member (5) are through strengthening gusset (6) and main beam (1), bracing frame (7) side surface welded fastening.

2. A high load bridge steel structure according to claim 1, wherein: the two main cross beams (1) are arranged and are distributed in parallel, and the main cross beams (1) are fixedly connected through reinforcing cross rods (3).

3. A high load bridge steel structure according to claim 1, wherein: the first reinforcing ribs (2) and the second reinforcing ribs (18) are of crossed structures, two ends of the second reinforcing ribs (18) are fixedly connected with the reinforcing side plates (13) through reinforcing steel anchor plates (17), and reinforcing ribs (14) are arranged in the reinforcing side plates (13).

4. A high load bridge steel structure according to claim 1, wherein: the novel cross beam is characterized in that a bevel baffle frame (4) is arranged between the main cross beam (1) and the underframe plate (8), protective side frames (12) are arranged on the two side surfaces of the underframe plate (8), and the front ends of the protective side frames (12) are connected with the reinforcing side plates (13) through welding.

5. The high load bridge steel structure according to claim 4, wherein: the bottom end of the reinforcing side plate (13) is fixedly connected with the underframe plate (8) through a supporting rib plate (15).

6. A high load bridge steel structure according to claim 1, wherein: the two sides of the bottom end of the underframe plate (8) are provided with supporting bridge blocks (11).