Assembled maintenance channel beam for bridge

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to an assembled overhaul channel beam for a bridge. The steel box girder is composed of a plurality of steel box girder modules, wherein each steel box girder module comprises a bottom plate; the web plates are vertically arranged on the two sides of the bottom plate respectively; the multiple partition plates are vertically arranged on the bottom plate, and the height of the partition plates is the same as that of the web plates; the top plate is aligned with the bottom plate, and the top plate is arranged on the multiple partition plates and the pair of web plates; a plurality of axial positioning lines are arranged on the surfaces, facing the partition plate, of the bottom plate, the web plate and the top plate; a plurality of welding grooves are formed in the periphery of the partition plate, the positions of the welding grooves correspond to the positions of the positioning lines, and the positioning lines are correspondingly embedded into the welding grooves. The maintenance channel beam is used for solving the technical problems that in the prior art, a maintenance channel beam built by a sectional material and a flat plate is troublesome to assemble and inconvenient to disassemble and maintain, the overall structure is not firm enough, the top surface flat plate is not stable enough, and safety risks exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to an assembled maintenance channel beam for bridges. Background Art

[0002] The maintenance passage beam is a pedestrian passage connecting the maintenance bay of the middle approach bridge and the north anchorage of the south channel bridge.

[0003] The existing maintenance channel beam is similar to the scaffolding structure on the construction site, which is made of multiple profiles. Its disadvantages are that it is troublesome to assemble and inconvenient to disassemble and repair. In addition, the overall building design is not strong enough; the overall structural design is too traditional, especially the flat plate laid on the top for maintenance personnel to walk on is not stable enough, which poses a safety risk.

[0004] Therefore, it is necessary to develop an assembled maintenance channel beam for bridges which is easy to assemble and construct and relatively firm and stable. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an assembled maintenance channel beam for a bridge, which is used to solve the technical problems in the prior art that the maintenance channel beam constructed of profiles and flat plates is difficult to assemble, is not convenient to disassemble and repair, and has an overall structure that is not strong enough, the top flat plate is not stable enough, and there are safety risks.

[0006] The utility model solves the above technical problems with the following technical solutions: An assembled maintenance channel beam for a bridge is composed of a plurality of steel box beam modules, wherein the steel box beam modules include:

[0007] Base plate;

[0008] A pair of webs, wherein the pair of webs are respectively and vertically arranged on both sides of the bottom plate;

[0009] A plurality of partitions, wherein the plurality of partitions are vertically arranged on the bottom plate, and the height of the partitions is the same as the height of the web;

[0010] A top plate, the top plate is aligned with the bottom plate, the top plate is arranged on a plurality of the partition plates and a pair of the web plates;

[0011] The bottom plate, the web plate and the top plate are all provided with a plurality of axial positioning lines on one side facing the partition plate;

[0012] A plurality of welding grooves are provided around the partition plate, and the positions of the welding grooves correspond to the positions of the positioning lines, and the positioning lines are correspondingly embedded in the welding grooves.

[0013] The utility model changes the maintenance channel beam from the original profile splicing structure to a modular structure, and composes a complete maintenance channel beam through multiple steel box beam modules; the steel box beam modules can be produced in a production plant and then assembled at the bridge construction site, thus saving the installation time, disassembly and maintenance time of the maintenance channel beam and improving safety.

[0014] Furthermore: a manhole is provided at the center of the partition.

[0015] The beneficial effect of adopting this step: The normal production sequence of the steel box girder module is to first weld the joints of the web, bottom plate and partition, and then cover the top plate for welding. However, since the top plate, web and bottom plate will form a closed cavity, the joints between the bottom surface of the top plate and the internal partition cannot be welded. At this time, a manhole needs to be opened on the partition to allow workers to drill into the steel box girder through the manhole for welding.

[0016] Furthermore: welding holes are provided at the four corners of the partition.

[0017] The beneficial effect of adopting this step: the welding hole is to make room for the weld.

[0018] Furthermore: the width of the top plate is greater than the width of the bottom plate, and the parts extending outwards on both sides of the top plate are cantilever beam sections;

[0019] The cantilever beam section is also provided with a plurality of axial positioning lines;

[0020] A plurality of cantilever arms are provided below the cantilever beam section, and welding grooves are also provided at positions of the cantilever arms corresponding to the positioning lines;

[0021] The four corners of the lifting arm are also provided with welding holes.

[0022] The beneficial effects of adopting this step are as follows: the cantilever arms are used to increase the structural strength of both sides of the top plate; the structure in which the top plate is wider than the bottom plate is to reduce the material consumption of the partition plate and the bottom plate.

[0023] Furthermore: a protrusion is provided on one side of the welding groove, and the protrusion is used to abut against the positioning line.

[0024] The beneficial effect of adopting this step is that the protrusion can abut the positioning line to play a positioning role, while the other empty parts of the welding groove are for avoiding the welding seam.

[0025] Furthermore: a reinforcement plate is also provided on the outer edge of the cantilever arm.

[0026] The beneficial effect of adopting this step is: the reinforcing plate is to enhance the structural strength of the boom.

[0027] Further: a plurality of the partitions are arranged in parallel and at intervals on the bottom plate;

[0028] Alternatively, a plurality of partitions are sequentially arranged on the bottom plate in a head-to-tail manner, and the angle between the partition and the web is in the range of 45° to 90°.

[0029] Furthermore: obliquely supported support plates are provided on both sides of the bottom of the partition, and welding grooves corresponding to the positioning lines are also provided on the bottom edge of the support plate;

[0030] And the bottom edges of two adjacent supporting sub-plates abut against each other.

[0031] The beneficial effect of adopting this step is that the supporting partitions can prevent the partitions from falling over, and the bottom edges of adjacent supporting partitions can abut against each other, thereby preventing the bottom edges of the supporting partitions from sliding, making the structure more solid.

[0032] Further: one end of the top plate and the bottom plate is an inclined surface;

[0033] The partition adjacent to the inclined surface is parallel to the inclined surface.

[0034] The beneficial effects of adopting this step are as follows: when the maintenance channel beam is a straight line, the steel box beam modules are spliced ​​along the length and the end faces are flat; when the maintenance channel beam has a curve, the steel box beam modules are spliced ​​in a turned direction, and the end faces of some steel box beam modules are inclined, and the partitions are arranged parallel to the inclined surface to provide better support.

[0035] Furthermore: guardrails are provided on both sides of the top surface of the top plate.

[0036] The beneficial effect of adopting this step: the guardrail can improve the walking safety of maintenance personnel on the maintenance channel beam.

[0037] The beneficial effects of the utility model are:

[0038] 1. The maintenance channel beam of the present application adopts a modular production process and is composed of multiple steel box beam modules; the steel box beam modules can be pre-assembled in the production plant; the maintenance channel beam is then assembled as a whole on site; the overall structure is very convenient to install and assemble, which can effectively save time and improve assembly efficiency;

[0039] 2. The overall structure of the present invention is very stable and reliable. On the one hand, the overall structure is installed and welded through positioning lines and welding grooves, and the positioning and assembly are convenient and reliable. On the other hand, the structure and installation position of the partition are designed, and the partition is provided with supporting sub-plates. The supporting capacity of the partition is correspondingly improved by the supporting sub-plates. The installation position, inclination angle and direction of the partition can also be set accordingly, which can effectively improve the supporting capacity of the partition without affecting the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A three-dimensional diagram of an assembled maintenance channel beam for a bridge provided by the utility model;

[0042] Figure 2 A schematic diagram of the structure of an assembled maintenance channel beam for a bridge provided by the utility model;

[0043] Figure 3 for Figure 2 A top view of

[0044] Figure 4 for Figure 2 Bottom view of

[0045] Figure 5 for Figure 3 Sectional view along AA direction;

[0046] Figure 6 for Figure 2 Right view of;

[0047] Figure 7 A schematic diagram of a partition plate and a supporting partition plate in an assembled inspection channel beam for a bridge provided by the utility model;

[0048] Figure 8 The utility model provides a schematic diagram of a partition plate and a bottom plate in an assembled maintenance channel beam for a bridge.

[0049] Reference numerals:

[0050] 1- bottom plate; 2- partition plate; 3- web plate; 4- cantilever arm; 5- positioning line; 6- welding groove; 7- top plate; 8- guardrail; 9- support plate;

[0051] 21-manhole; 22-welding hole; 41-reinforcement plate. DETAILED DESCRIPTION

[0052] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0053] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0054] Example

[0055] like Figure 1 to Figure 6 As shown, the utility model provides an assembled maintenance channel beam for a bridge, which is composed of a plurality of steel box beam modules, and the steel box beam modules include:

[0056] Bottom plate 1;

[0057] a pair of webs 3, wherein the pair of webs 3 are respectively and vertically arranged on both sides of the bottom plate 1;

[0058] A plurality of partitions 2, wherein the plurality of partitions 2 are vertically arranged on the bottom plate 1, and the height of the partitions 2 is the same as the height of the web 3;

[0059] A top plate 7, the top plate 7 is aligned with the bottom plate 1, and the top plate 7 is arranged on a plurality of the partition plates 2 and a pair of the web plates 3;

[0060] The bottom plate 1, the web plate 3 and the top plate 7 are provided with a plurality of axial positioning lines 5 on one side facing the partition plate 2. The positioning lines 5 are essentially straight steel strips welded on the bottom plate 1, the web plate 3 and the top plate 7.

[0061] A plurality of welding grooves 6 are formed around the partition plate 2 . The positions of the welding grooves 6 correspond to the positions of the positioning lines 5 . The positioning lines 5 are correspondingly embedded in the welding grooves 6 .

[0062] The utility model changes the maintenance channel beam from the original profile splicing structure to a modular structure, and forms a complete maintenance channel beam through multiple steel box beam modules; the steel box beam modules can be produced in a production plant and then assembled at the bridge construction site, saving the installation time, disassembly and maintenance time of the maintenance channel beam and improving safety; usually, a single steel box beam module can span adjacent bridge piers / pillars, and a plurality of plate rubber bearings are provided at the bottom of the steel box beam.

[0063] On the basis of the above technical solution, a manhole 21 is opened in the center of the partition 2.

[0064] The normal manufacturing sequence of the steel box girder module is to first weld the joints of the web 3, the bottom plate 1 and the partition 2, and then cover the top plate 7 for welding. However, since the top plate 7, the web 3 and the bottom plate 1 will form a closed cavity, the joints between the bottom surface of the top plate 7 and the internal partition 2 and the web 3 cannot be welded. At this time, it is necessary to open a manhole 21 on the partition 2 to allow workers to drill into the steel box girder through the manhole 21 for welding.

[0065] On the basis of the above technical solution, welding holes 22 are provided at the four corners of the partition plate 2 .

[0066] In order to ensure the strength of the steel box girder module, the contact surfaces of the top plate 7 and the web 3 need to be welded on both sides, and the contact surfaces of the web 3 and the bottom plate 1 need to be welded on both sides, so welds will be produced. The through-welding holes are to make way for the welds so that the partition 2 does not interfere with the welds.

[0067] On the basis of the above technical solution, the width of the top plate 7 is greater than the width of the bottom plate 1, and the parts extending outwards on both sides of the top plate 7 are cantilever beam sections;

[0068] The cantilever beam section is also provided with a plurality of axial positioning lines 5;

[0069] A plurality of cantilever arms 4 are provided below the cantilever beam section, and welding grooves 6 are also provided at positions of the cantilever arms 4 corresponding to the positioning lines 5;

[0070] The four corners of the lifting arm 4 are also provided with welding holes 22 .

[0071] The cantilever arms 4 are used to increase the structural strength of both sides of the top plate 7; the structure in which the top plate 7 is wider than the bottom plate 1 is to reduce the amount of material used for the partition plate 2 and the bottom plate 1.

[0072] On the basis of the above technical solution, a protrusion is provided on one side of the welding groove 6 , and the protrusion is used to abut against the positioning line 5 .

[0073] The protrusion can abut the positioning line 5 to play a positioning role, and the other empty parts of the welding groove 6 are for avoiding the weld, or because the positioning line 5 itself does not require high precision, the steel plate used to produce the positioning line 5 will have burrs and dimensional errors after cutting, and the empty part can make way for the positioning line 5.

[0074] On the basis of the above technical solution, a reinforcing plate 41 is further provided on the outer edge of the lifting arm 4 .

[0075] The reinforcing plate 41 is used to enhance the structural strength of the boom 4 .

[0076] like Figure 5 and Figure 8 As shown, a plurality of the partitions 2 are arranged in parallel and at intervals on the bottom plate 1;

[0077] Alternatively, a plurality of the partitions 2 are sequentially connected head to tail and arranged on the bottom plate 1, and the angle between the partitions 2 and the web 3 is in the range of 45° to 90°.

[0078] like Figure 7 As shown, obliquely supported support plates 9 are provided on both sides of the bottom of the partition 2, and the bottom edge of the support plate 9 is also provided with a welding groove 6 corresponding to the positioning line 5;

[0079] The bottom edges of two adjacent supporting sub-plates 9 abut against each other.

[0080] The supporting sub-plates 9 can prevent the partition 2 from falling over, and the bottom edges of adjacent supporting sub-plates 9 can abut against each other, thereby preventing the bottom edges of the supporting sub-plates 9 from sliding, making the structure more solid.

[0081] like Figure 3~Figure 5 As shown, one end of the top plate 7 and the bottom plate 1 is an inclined surface;

[0082] The partition plate 2 adjacent to the inclined surface is parallel to the inclined surface.

[0083] When the maintenance channel beam is a straight line, the steel box beam modules are spliced ​​along the length and the end faces are flat; when the maintenance channel beam has a curve, the steel box beam modules are spliced ​​in a turned direction, and the end faces of some steel box beam modules are inclined, and the partition 2 is set parallel to the inclined surface to provide better support.

[0084] On the basis of the above technical solution, guardrails 8 are provided on both sides of the top surface of the top plate 7 .

[0085] The guardrail 8 can improve the walking safety of maintenance personnel on the maintenance channel beam.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An assembled maintenance channel beam for a bridge, characterized in that: It is composed of a plurality of steel box girder modules, wherein the steel box girder modules include: Base plate; A pair of webs, wherein the pair of webs are respectively and vertically arranged on both sides of the bottom plate; A plurality of partitions, wherein the plurality of partitions are vertically arranged on the bottom plate, and the height of the partitions is the same as the height of the web; A top plate, the top plate is aligned with the bottom plate, the top plate is arranged on a plurality of the partition plates and a pair of the web plates; The bottom plate, the web plate and the top plate are all provided with a plurality of axial positioning lines on one side facing the partition plate; A plurality of welding grooves are provided around the partition plate, and the positions of the welding grooves correspond to the positions of the positioning lines, and the positioning lines are correspondingly embedded in the welding grooves; The bottom sides of the partition are provided with obliquely supported support sub-plates, and the bottom edge of the support sub-plates is also provided with welding grooves corresponding to the positioning lines; And the bottom edges of two adjacent supporting sub-plates abut against each other.

2. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: A manhole is provided in the center of the partition.

3. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: The four corners of the partition are provided with welding holes.

4. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: The width of the top plate is greater than that of the bottom plate, and the parts extending outwards on both sides of the top plate are cantilever beam sections; The cantilever beam section is also provided with a plurality of axial positioning lines; A plurality of cantilever arms are provided below the cantilever beam section, and welding grooves are also provided at positions of the cantilever arms corresponding to the positioning lines; The four corners of the lifting arm are also provided with welding holes.

5. The assembled maintenance channel beam for a bridge according to claim 4, characterized in that: A protrusion is provided on one side of the welding groove, and the protrusion is used to abut against the positioning line.

6. The assembled maintenance channel beam for a bridge according to claim 4, characterized in that: The outer edge of the cantilever arm is also provided with a reinforcing plate.

7. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: A plurality of partitions are arranged on the bottom plate in parallel and at intervals; Alternatively, a plurality of partitions are sequentially arranged on the bottom plate in a head-to-tail manner, and the angle between the partition and the web is in the range of 45° to 90°.

8. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: One end of the top plate and the bottom plate is an inclined surface; The partition adjacent to the inclined surface is parallel to the inclined surface.

9. The assembled maintenance channel beam for a bridge according to claim 1, characterized in that: Guardrails are arranged on both sides of the top surface of the top plate.

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