Bridge reinforcing type steel box girder structure

Abstract

The utility model discloses a bridge reinforcing type steel box girder structure, and relates to the technical field of steel box girder structures, the bridge reinforcing type steel box girder structure comprises a top plate, a bottom plate, a waist web plate, a diaphragm plate group and a stiffening rib assembly, the bottom plate is parallel to the top plate and is located right below the top plate; the two waist web plates are vertically connected between the top plate and the bottom plate in parallel; the transverse partition plate set comprises first transverse partition plates and second transverse partition plates which are vertically and evenly distributed on the bottom plate in parallel, the upper ends and the lower ends of the multiple first transverse partition plates are connected between the top plate and the bottom plate, and the two second transverse partition plates are located on the two sides of the first transverse partition plates respectively and located on the outer side of the top plate. The stiffening rib assembly comprises a first stiffening rib structure and a second stiffening rib structure which are located on the first transverse partition plate and the second transverse partition plate respectively, and the first stiffening rib structure and the second stiffening rib structure are evenly distributed on the side face of the first transverse partition plate and the side face of the second transverse partition plate respectively. According to the bridge reinforcing type steel box girder structure, the overall rigidity of piles or piers is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box girder structures, in particular to a bridge reinforced steel box girder structure. Background Art

[0002] Steel box girder is a common structural form for long-span bridges. Steel structure bridges are mainly load-bearing structures made of steel, that is, steel structure bridges, steel bridges, and prefabricated steel bridges have been widely used all over the world. The main design concept of steel structure bridges is to assemble a prefabricated steel bridge that can carry various loads and different spans with the least type of unit components, and only need to be transported by ordinary medium-sized trucks. In special cases, it can be built entirely by manpower. Steel box girder, also called steel plate box girder, is a common structural form for long-span bridges. It is generally used on bridges with larger spans, and is called steel box girder because it looks like a box.

[0003] The steel box girders currently used in steel structure bridges are generally composed of a top plate, a bottom plate, a web plate, and a transverse diaphragm connected by a fully welded method. The steel box girder is supported as a whole only by the transverse diaphragm and the longitudinal diaphragm. When hoisting, it is mostly fixed and hoisted from both sides of the steel box girder, which can easily lead to compression deformation during hoisting, and the hoisting stability is poor. At the same time, there is a lack of support measures for the inclined web and side plates, which can easily cause the inclined web to be wrinkled and damaged, making the structure unstable and resulting in reduced overall stiffness. Utility Model Content

[0004] In view of this, the main purpose of the utility model is to propose a bridge reinforced steel box girder structure, aiming to solve the technical problem that the existing steel box girder structure is not firm and leads to reduced overall stiffness.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a bridge reinforced steel box girder structure, comprising:

[0006] roof;

[0007] A bottom plate, parallel to the top plate and located directly below the top plate;

[0008] Waist and belly plates, two of which are vertically and parallelly connected between the top plate and the bottom plate;

[0009] A transverse partition group, comprising first transverse partitions and second transverse partitions vertically and parallelly evenly distributed on the bottom plate, wherein the upper and lower ends of a plurality of the first transverse partitions are connected between the top plate and the bottom plate, and two second transverse partitions are respectively located on both sides of the first transverse partition and on the outer side of the top plate;

[0010] The stiffening rib assembly comprises a first reinforcing rib structure and a second reinforcing rib structure respectively located on the first transverse diaphragm and the second transverse diaphragm, and the first reinforcing rib structure and the second reinforcing rib structure are respectively evenly distributed on the side surfaces of the first transverse diaphragm and the second transverse diaphragm.

[0011] Optionally, a first arc-shaped hole is formed on the first transverse partition, and the first arc-shaped hole is located between the first reinforcing rib structures.

[0012] Optionally, a second arc-shaped hole is formed on the second transverse partition, and the second arc-shaped hole is located between the second reinforcing rib structures.

[0013] Optionally, the edge of the first arc-shaped hole extends outward to form a first arc-shaped convex strip, and the extension direction of the first arc-shaped convex strip is perpendicular to the side surface of the first transverse partition.

[0014] Optionally, the edge of the second arc-shaped hole extends outward to form a second arc-shaped convex strip, and the extension direction of the second arc-shaped convex strip is perpendicular to the side surface of the second transverse partition.

[0015] Optionally, the first reinforcing rib structure includes a plurality of first vertical ribs and first transverse ribs that are evenly distributed and vertically connected to the side surface of the first transverse partition, and the plurality of first vertical ribs and first transverse ribs are evenly distributed to form a rectangular frame structure.

[0016] Optionally, the second reinforcing rib structure includes a plurality of second vertical ribs and second transverse ribs that are evenly distributed and vertically connected to the side surfaces of the second transverse partition, and the plurality of second vertical ribs and the second transverse ribs are evenly distributed to form a rectangular frame structure.

[0017] Optionally, the waist and abdomen plate includes a trapezoidal bottom plate and a rectangular top plate connected to the trapezoidal bottom plate, and the length of the rectangular top plate is equal to the length of the upper base of the trapezoidal bottom plate.

[0018] Optionally, the number of the first transverse partitions is six, and the number of the second transverse partitions is two.

[0019] Optionally, both the first arc-shaped hole and the second arc-shaped hole are waist-shaped hole structures.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] In the technical solution of the utility model, the bridge reinforced steel box girder structure is composed of a top plate, a bottom plate, a waist and web plate, a diaphragm group and a stiffening rib assembly. The top plate and the bottom plate are arranged in parallel up and down, and the bottom plate is located directly below the top plate. The two waist and web plates are vertically and parallelly connected between the top plate and the bottom plate, thereby forming the overall structure of the steel box girder structure. Considering the internal hollow structure between the top plate, the bottom plate and the waist and web plate and the long length of the bottom plate, in order to ensure the structural support strength of the steel box girder structure, a diaphragm group is arranged between the top plate and the bottom plate, wherein the diaphragm group is composed of a plurality of first diaphragms and a second diaphragm, and the plurality of first diaphragms are vertically and parallelly and evenly arranged between the top plate and the bottom plate brackets. , and the first transverse partition is perpendicular to the waist and belly plate, the top end of the first transverse partition is connected to the inner wall of the top plate, and the bottom end of the first transverse partition is connected to the inner wall of the bottom plate, so as to support the internal hollow structure between the top plate and the bottom plate; the second transverse partition is arranged on the outside of several first transverse partitions, and the second transverse partition is arranged vertically and parallel to the first transverse partition along the width direction of the bottom plate, and the front and rear ends of the second transverse partition are vertically connected to the inner wall of the waist and belly plate on the corresponding side; the first reinforcing rib structure and the second reinforcing rib structure are respectively arranged on the first transverse partition and the second transverse partition, so as to prevent the support deformation of the first transverse partition and the second transverse partition, thereby making the steel box girder structure firm and increasing the overall stiffness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the bridge reinforced steel box girder structure in the embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the bridge reinforcement steel box girder structure in the embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the bridge reinforced steel box girder structure in the embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal main structure of the bridge reinforced steel box girder structure in the embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the first transverse partition in the embodiment of the utility model;

[0028] Figure 6It is a schematic structural diagram of the second transverse partition in an embodiment of the utility model.

[0029] Description of Figure Numbers:

[0030] Top plate; 2-bottom plate; 3-waist and abdominal plate; transverse partition group; first transverse partition; 411-first arc-shaped hole; 412-first arc-shaped convex strip; second transverse partition; 421-second arc-shaped hole; 422-second arc-shaped convex strip; stiffening rib assembly; first reinforcing rib structure; 511-first vertical rib; 512-first transverse rib; 52-second reinforcing rib structure; 521-second vertical rib; 522-second transverse rib. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] See also Figure 1-6 As shown, the embodiment of the utility model provides a bridge reinforced steel box girder structure, which includes a top plate 1, a bottom plate 2, a waist plate 3, a diaphragm group 4 and a stiffening rib assembly 5, wherein:

[0035] The top plate 1 and the bottom plate 2 are arranged parallel to each other up and down, and the bottom plate 2 is located directly below the top plate 1; the two waist and abdominal plates 3 are vertically and parallelly connected between the top plate 1 and the bottom plate 2; the diaphragm group 4 includes a first diaphragm 41 and a second diaphragm 42 vertically and parallelly evenly distributed on the bottom plate 2, and the upper and lower ends of multiple first diaphragms 41 are connected between the top plate 1 and the bottom plate 2, and the two second diaphragms 42 are respectively located on both sides of the first diaphragm 41 and on the outside of the top plate 1; the stiffening rib assembly 5 includes a first reinforcing rib structure 51 and a second reinforcing rib structure 52 respectively located on the first diaphragm 41 and the second diaphragm 42, and the first reinforcing rib structure 51 and the second reinforcing rib structure 52 are respectively evenly distributed on the sides of the first diaphragm 41 and the second diaphragm 42.

[0036] Specifically, see Figure 1 , 2 , 3, and 4, in the specific embodiment of the utility model, the top plate 1, the bottom plate 2 and the waist and web plates 3 form an internal hollow steel box girder structure, wherein the width of the top plate 1 and the bottom plate 2 are equal, but the length of the bottom plate 2 is greater than the length of the top plate 1, and the top plate 1 and the bottom plate 2 are arranged symmetrically along the vertical center line, and the two waist and web plates 3 are vertically connected to the front and rear of the top plate 1 and the bottom plate 2 (that is, the attached Figure 1 The length of the top side of the waist and abdominal plate 3 is equal to the length of the top plate 1, and the length of the bottom side of the waist and abdominal plate 3 is equal to the length of the bottom plate 2.

[0037] Taking into account the internal hollow structure between the top plate 1, the bottom plate 2 and the waist and web plates 3, and the long length of the bottom plate 2, in order to ensure the structural support strength of the steel box girder structure, a transverse diaphragm group 4 is arranged between the top plate 1 and the bottom plate 2, wherein the transverse diaphragm group 4 is composed of a plurality of first transverse diaphragms 41 and a second transverse diaphragm 42, wherein the plurality of first transverse diaphragms 41 are vertically parallel and evenly arranged on the top plate 1 and the bottom plate 2 brackets, and the first transverse diaphragms 41 are perpendicular to the waist and web plates 3, the top end of the first transverse diaphragm 41 is connected to the inner wall of the top plate 1, and the bottom end of the first transverse diaphragm 41 is connected to the inner wall of the bottom plate 2, thereby supporting the internal hollow structure between the top plate 1 and the bottom plate 2; the second transverse diaphragm 42 is arranged on the outside of the plurality of first transverse diaphragms 41, that is, located at the outer end of the top plate 1, similarly, the second transverse diaphragm 42 is arranged vertically parallel to the first transverse diaphragm 41 along the width direction of the bottom plate 2, and the front and rear ends of the second transverse diaphragms 42 (that is, attached Figure 1 The Y direction in the figure is vertically connected to the inner wall of the waist and abdominal plate 3 on the corresponding side.

[0038] In addition, the height between the top plate 1 and the bottom plate 2 is relatively high, resulting in a relatively high height of the transverse partition group 4. In addition, the thickness of the first transverse partition 41 and the second transverse partition 42 are also relatively thin. When the steel box girder structure bears the weight, in order to ensure the structural strength of the first transverse partition 41 and the second transverse partition 42, the first reinforcing rib structure 51 and the second reinforcing rib structure 52 are respectively provided on the first transverse partition 41 and the second transverse partition 42, thereby preventing the support deformation of the first transverse partition 41 and the second transverse partition 42.

[0039] Furthermore, a first arc-shaped hole 411 is formed on the first transverse partition plate 41 , and the first arc-shaped hole 411 is located between the first reinforcing rib structures 51 .

[0040] See also Figure 5 As shown, in this embodiment, in order to reduce the weight of the first transverse partition 41, a first arc-shaped hole 411 is opened on the first transverse partition 41, which can also reduce material costs.

[0041] Furthermore, a second arc-shaped hole 421 is formed on the second transverse partition plate 42 , and the second arc-shaped hole 421 is located between the second reinforcing rib structures 52 .

[0042] See also Figure 6 As shown, in this embodiment, the second transverse partition 42 is also provided with a second arc hole 421, which not only reduces the weight of the second transverse partition 42, but also further reduces the material cost. The second arc hole 421 is staggered from the second reinforcing rib structure 52 to ensure the structural strength of the second transverse partition 42.

[0043] Furthermore, the edge of the first arc-shaped hole 411 extends outward to form a first arc-shaped convex strip 412 , and the extending direction of the first arc-shaped convex strip 412 is perpendicular to the side surface of the first transverse partition plate 41 .

[0044] See also Figure 5 As shown, in the present embodiment, in order to avoid reducing the strength of the first transverse partition 41 due to the opening of the first arc-shaped hole 411 on the first transverse partition 41, a first arc-shaped ridge 412 is formed by extending outward from the edge of the first arc-shaped hole 411, thereby ensuring the structural strength of the first transverse partition 41.

[0045] Furthermore, the edge of the second arc-shaped hole 421 extends outward to form a second arc-shaped convex strip 422 , and the extending direction of the second arc-shaped convex strip 422 is perpendicular to the side surface of the second transverse partition plate 42 .

[0046] See also Figure 6As shown, in the present embodiment, in order to avoid reducing the strength of the second transverse partition 42 due to the opening of the second arc-shaped hole 421 on the second transverse partition 42, a second arc-shaped ridge 422 is formed by extending outward from the edge of the second arc-shaped hole 421, thereby ensuring the structural strength of the second transverse partition 42.

[0047] Furthermore, the first reinforcing rib structure 51 includes a plurality of first vertical ribs 511 and first transverse ribs 512 that are evenly distributed and vertically connected to the side surface of the first transverse partition 41, and the plurality of first vertical ribs 511 and first transverse ribs 512 are evenly distributed to form a rectangular frame structure.

[0048] See also Figure 5 As shown, in this embodiment, the first reinforcing rib structure 51 is composed of a first vertical rib 511 and a first transverse rib 512. As a preferred embodiment of this embodiment, the first vertical ribs 511 are set to four, and the first transverse ribs 512 are set to three. The four first vertical ribs 511 are vertically and evenly arranged on the side of the first transverse partition 41, and the three first transverse ribs 512 are horizontally and evenly arranged on the side of the first transverse partition 41, and the first vertical ribs 511 and the first transverse ribs 512 form a rectangular frame structure.

[0049] Furthermore, the second reinforcing rib structure 52 includes a plurality of second vertical ribs 521 and second transverse ribs 522 that are evenly distributed and vertically connected to the side surface of the second transverse partition 42, and the plurality of second vertical ribs 521 and second transverse ribs 522 are evenly distributed to form a rectangular frame structure.

[0050] See also Figure 6 As shown, in this embodiment, the second reinforcing rib structure 52 is composed of second vertical ribs 521 and second transverse ribs 522. As a preferred embodiment of this embodiment, the second vertical ribs 521 are set to four, and the second transverse ribs 522 are set to two. The four second vertical ribs 521 are vertically and evenly arranged on the side of the second transverse partition 42, and the two second transverse ribs 522 are horizontally and evenly arranged on the side of the second transverse partition 42, and the second vertical ribs 521 and the second transverse ribs 522 form a rectangular frame structure.

[0051] Furthermore, the waist and abdomen plate 3 includes a trapezoidal bottom plate and a rectangular top plate connected to the trapezoidal bottom plate, and the length of the rectangular top plate is equal to the length of the upper base of the trapezoidal bottom plate.

[0052] See also Figure 3 , 4 As shown, in this embodiment, the waist and abdomen plate 3 is composed of a trapezoidal bottom plate and a rectangular top plate, and the length of the rectangular top plate is equal to the upper bottom length of the trapezoidal bottom plate, forming a waist and abdomen plate 3 similar to a trapezoidal structure.

[0053] Furthermore, the number of the first transverse partitions 41 is six, and the number of the second transverse partitions 42 is two.

[0054] See also Figure 3 , 4 As shown, in combination with the size of the top plate 1 and the bottom plate 2 in this embodiment, it is preferred that the number of the first transverse partitions 41 is six and the number of the second transverse partitions 42 is two, so as to meet the structural strength requirements while saving costs.

[0055] Furthermore, it is preferred that the first arc hole 411 and the second arc hole 421 are both waist-shaped hole structures. Of course, the first arc hole 411 and the second arc hole 421 can also be selected into other structural shapes such as round, square, etc. according to actual conditions, and this embodiment does not impose any limitation on this.

[0056] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A bridge reinforced steel box girder structure, characterized in that: include: Top plate (1); A bottom plate (2) is parallel to the top plate (1) and is located directly below the top plate (1); Waist and belly plates (3), two waist and belly plates (3) are vertically and parallelly connected between the top plate (1) and the bottom plate (2); A transverse partition group (4), comprising a first transverse partition (41) and a second transverse partition (42) vertically and parallelly evenly distributed on the bottom plate (2), wherein the upper and lower ends of a plurality of the first transverse partitions (41) are connected between the top plate (1) and the bottom plate (2), and two of the second transverse partitions (42) are respectively located on both sides of the first transverse partition (41) and on the outside of the top plate (1); The stiffening rib assembly (5) comprises a first reinforcing rib structure (51) and a second reinforcing rib structure (52) respectively located on the first transverse partition (41) and the second transverse partition (42), and the first reinforcing rib structure (51) and the second reinforcing rib structure (52) are respectively evenly distributed on the side surfaces of the first transverse partition (41) and the second transverse partition (42).

2. The bridge reinforcement steel box girder structure according to claim 1, characterized in that: The first transverse partition plate (41) is provided with a first arc-shaped hole (411), and the first arc-shaped hole (411) is located between the first reinforcing rib structures (51).

3. The bridge reinforcement steel box girder structure according to claim 2, characterized in that: The second transverse partition plate (42) is provided with a second arc-shaped hole (421), and the second arc-shaped hole (421) is located between the second reinforcing rib structures (52).

4. The bridge reinforcement steel box girder structure according to claim 2, characterized in that: The edge of the first arc-shaped hole (411) extends outward to form a first arc-shaped convex strip (412), and the extension direction of the first arc-shaped convex strip (412) is perpendicular to the side surface of the first transverse partition plate (41).

5. The bridge reinforcement steel box girder structure according to claim 3, characterized in that: The edge of the second arc-shaped hole (421) extends outward to form a second arc-shaped convex strip (422), and the extension direction of the second arc-shaped convex strip (422) is perpendicular to the side surface of the second transverse partition plate (42).

6. The bridge reinforced steel box girder structure according to any one of claims 1 to 5, characterized in that: The first reinforcing rib structure (51) comprises a plurality of first vertical ribs (511) and first transverse ribs (512) that are evenly distributed and vertically connected to the side surface of the first transverse partition (41), and the plurality of first vertical ribs (511) and first transverse ribs (512) are evenly distributed to form a rectangular frame structure.

7. The bridge reinforcement steel box girder structure according to any one of claims 1 to 5, characterized in that: The second reinforcing rib structure (52) comprises a plurality of second vertical ribs (521) and second transverse ribs (522) that are evenly distributed and vertically connected to the side surface of the second transverse partition (42), and the plurality of second vertical ribs (521) and the second transverse ribs (522) are evenly distributed to form a rectangular frame structure.

8. The bridge reinforcement steel box girder structure according to claim 1, characterized in that: The waist and abdomen plate (3) comprises a trapezoidal bottom plate and a rectangular top plate connected to the trapezoidal bottom plate, and the length of the rectangular top plate is equal to the length of the upper base of the trapezoidal bottom plate.

9. The bridge reinforcement steel box girder structure according to claim 8, characterized in that: The number of the first transverse partitions (41) is six, and the number of the second transverse partitions (42) is two.

10. The bridge reinforcement steel box girder structure according to claim 3, characterized in that: The first arc-shaped hole (411) and the second arc-shaped hole (421) are both waist-shaped hole structures.

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