CN212426680U - Sectional type stride steel case roof beam greatly - Google Patents
Sectional type stride steel case roof beam greatly Download PDFInfo
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- CN212426680U CN212426680U CN202020206756.2U CN202020206756U CN212426680U CN 212426680 U CN212426680 U CN 212426680U CN 202020206756 U CN202020206756 U CN 202020206756U CN 212426680 U CN212426680 U CN 212426680U
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- box girder
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 135
- 239000010959 steel Substances 0.000 title claims abstract description 135
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
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Abstract
The utility model provides a sectional type strides steel box girder greatly, includes the steel box girder body, the steel box girder body includes that the symmetry is laid, left steel box girder and right steel box girder that the structure is the same, left side steel box girder and right steel box girder are through first fastening bolt interconnect, first fastening bolt runs through the web of left steel box girder and right steel box girder and fixes left steel box girder and right steel box girder, the extension roof beam has been laid to the symmetry on one side that left side steel box girder and right steel box girder kept away from each other, the extension roof beam pass through second fastening bolt respectively with left steel box girder and right steel box girder fixed connection, the utility model discloses a steel box girder adopts the mode of equipment, both is convenient for transport, has saved the trouble of upset again, labour saving and time saving and safety again.
Description
Technical Field
The utility model relates to a steel case roof beam technical field especially relates to a sectional type strides steel case roof beam greatly.
Background
In large-span cable support bridge, the span of steel case girder reaches several hundred meters and to last kilometers, generally divide into a plurality of beam sections and make and install, and its cross section has broad width and flat appearance characteristics, and the aspect ratio reaches 1: about 10, so the steel box girder is widely used in the current bridge engineering.
Through the retrieval, chinese patent No. CN201920028900.5 discloses a sectional type stride steel box girder greatly, including left steel box girder, left side steel box girder top one side is equipped with dog one, left side steel box girder front side is equipped with package frame one all around, package frame one front side is equipped with left spout, left side steel box girder bottom has fixed plate one through left spout swing joint, fixed plate one runs through to be equipped with fixed orifices one, fixed plate one top fixedly connected with fixed block one, left side steel box girder front side is equipped with trapezoidal hole one, left side steel box girder front side one end is equipped with fixed block two, fixed block two runs through to be equipped with fixed orifices two, there is right steel box girder left side steel box girder top one side through hinged joint, and the defect of this scheme is: the left steel box girder is connected with the right steel box girder through a hinge, the height of the two steel box girders which are overlapped together is increased, the steel box girders are extremely easy to be restricted by a height limiting device in transportation engineering, the weight of the whole steel box girder is not shared, the load of a transportation vehicle is too large, in addition, the right steel box girder needs to be turned over by means of large-scale hoisting equipment, a large amount of manpower, material resources and time are consumed, the turning process is extremely dangerous, and therefore the segmented large-span steel box girder is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned not enough of technique and provide a transportation of being convenient for, it is convenient to connect, labour saving and time saving's sectional type stride steel case roof beam greatly.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a sectional type strides steel box girder greatly, includes the steel box girder body, the steel box girder body is including the symmetry lay, the same left steel box girder 1 of structure and right steel box girder 2, a serial communication port, left side steel box girder 1 and right steel box girder 2 are through first fastening bolt 4 interconnect, first fastening bolt 4 runs through the web of left steel box girder 1 and right steel box girder 2 and fixes left steel box girder 1 and right steel box girder 2, the extension roof beam 7 has been laid to the symmetry on the one side that left side steel box girder 1 and right steel box girder 2 kept away from each other, extension roof beam 7 pass through second fastening bolt 8 respectively with left steel box girder 1 and right steel box girder 2 fixed connection. This embodiment has become left steel box girder 1 to the whole split of steel box girder, right steel box girder 2 and two extension roof beams 7 four parts, can part the transportation in the transportation, share away weight with this, lighten the burden for haulage vehicle, and only need with the help of lifting by crane equipment in the time of the concatenation, through first fastening bolt and second fastening bolt with the split after left side, right side steel box girder and extension roof beam are connected fixedly, can accomplish the equipment, the transportation of both being convenient for, the trouble of upset has been saved again, time saving and labor saving are safety again.
In this embodiment, the middle part all has welded diaphragm 3 in left side steel box girder 1 and the right steel box girder 2, the bottom plate of left steel box girder 1 of diaphragm 3 perpendicular to and the right steel box girder 2, first fastening bolt 4 uses diaphragm 3 to lay in the both sides of web as central symmetry.
In this embodiment, the left steel box girder 1 and the right steel box girder 2 are respectively fixed with an upper support and a lower support on the inner wall of the top plate and the inner wall of the bottom plate, the upper supports and the lower supports are arranged in a staggered manner, and a reinforcing beam column 6 is welded between the adjacent upper supports and the adjacent lower supports.
In this embodiment, be equipped with two upper brackets on the roof inner wall, be equipped with two undersetting on the bottom plate inner wall, be equipped with a side support on the curb plate inner wall of left side steel box girder 1 and right steel box girder 2, it is adjacent the shape that reinforcing beam column 6 and roof inner wall or bottom plate inner wall or curb plate inner wall enclose and close is triangle-shaped.
In this embodiment, the reinforcing beam columns 6 are all arranged in an inclined manner, and the inclination angles of two adjacent reinforcing beam columns 6 are the same. The obliquely arranged reinforcing beam column 6 can enhance the bearing capacity of the steel box girder.
In this embodiment, the first fastening bolt 4 and the second fastening bolt 8 are high-strength bolts, and the first fastening bolt 4 and the second fastening bolt 8 each include a bolt 11 and a nut 12.
In this embodiment, a plurality of reinforcing ribs 9 supported between the top plate and the bottom plate of the extension beam 7 are fixed in the extension beam 7, and the reinforcing ribs 9 are arranged perpendicular to the ground, so that the reinforcing ribs 9 can increase the bearing capacity of the extension beam 7.
In this embodiment, the diaphragm plate 3 is provided with the pipeline hole 10, and the diaphragm plate inside the steel box girder is provided with the pipeline hole, so that a circuit and a pipeline on the bridge can directly pass through the diaphragm plate without being installed outside, and the internal space is fully utilized.
Adopt above-mentioned structure, this embodiment has divided into four bibliographic categories branch to the whole split of steel box girder, can part the transportation in the transportation to this shares away weight, alleviates the burden for haulage vehicle, only need just can accomplish with the help of hoisting equipment in the time of the concatenation moreover, and labour saving and time saving sets up out the pipe orifice in the inside of steel box girder, and circuit, pipeline on the bridge can directly pass like this, need not install in the outside, make full use of inner space.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a sectional type long-span steel box girder.
FIG. 2 is a front view structure schematic diagram of an embodiment of a sectional type long-span steel box girder.
FIG. 3 is a schematic structural diagram of an embodiment of a sectional type large-span steel box girder fastening bolt.
In the attached drawings, 1, a left steel box girder, 2, a right steel box girder, 3, a diaphragm plate, 4, a first fastening bolt, 5, a support, 6, a reinforcing beam column, 7, an extension beam, 8, a second fastening bolt, 9, a reinforcing rib, 10, a pipeline hole, 11, a bolt, 12 and a nut.
Detailed Description
For a better understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the embodiments, however, the present invention is not limited thereto, and the protection scope of the present invention also relates to the equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.
As shown in fig. 1 to 3, a sectional type long-span steel box girder comprises a left steel box girder 1 and a right steel box girder 2, wherein a diaphragm plate 3 is welded in each of the left steel box girder 1 and the right steel box girder 2, a pipeline hole 10 is formed in each of the two diaphragm plates 3, a circuit and a pipeline on the bridge can pass through the pipeline hole 10 without being laid outside the bridge, the space inside the bridge is fully utilized, the diaphragm plates 3 are arranged perpendicular to a bottom plate of the left steel box girder 1 and the right steel box girder 2, the left steel box girder 1 is connected with the right steel box girder 2 through a first fastening bolt 4, the first fastening bolt 4 penetrates through a web plate of the left steel box girder 1 and the right steel box girder 2, a plurality of supports 5 are welded on a top plate, the bottom plate and a side wall of the left steel box girder 1 and the right steel box girder 2, the supports 5 comprise an upper support welded on the top plate, a lower support welded on the bottom plate and a side support welded on the side wall, in this embodiment, the upper support and the lower support are arranged at intervals. The welding has the stiffening girder post 6 between adjacent upper bracket and the undersetting, and the welding has the stiffening girder post 6 between upper bracket and the collateral branch seat, and the stiffening girder post 6 is the slope setting and is equipped with the contained angle between the perpendicular, and the welding back is adjacent stiffening girder post 6 is triangle-shaped with roof inner wall or bottom plate inner wall or the shape that the curb plate inner wall encloses and closes. The bearing capacity of steel box girder can be strengthened to the stiffening girder post 6 that the slope set up, and the angle of inclination of two adjacent stiffening girder posts 6 is the same, one side that left side steel box girder 1 and right steel box girder 2 kept away from each other all is equipped with extension roof beam 7, all weld in two extension roof beams 7 has three strengthening rib 9, and strengthening rib 9 perpendicular to ground sets up, the bearing capacity of strengthening rib 9 multiplicable extension roof beam 7, stiffening girder post 6 and strengthening rib 9 all adopt the high strength steel, and extension roof beam 7 is connected with left steel box girder 1 and right steel box girder 2 through second fastening bolt 8, first fastening bolt 4 and second fastening bolt 8 all adopt the high strength bolt, first fastening bolt 4 and second fastening bolt 8 all include bolt 11 and nut 12.
In the utility model, the whole steel box girder can be split into four parts of a left steel box girder 1, a right steel box girder 2 and two extension girders 7, can be transported separately during transportation, thus sharing the weight, reducing the load of the transportation vehicle, ensuring the safety of the vehicle and the personnel, during splicing, a left steel box girder 1 and a right steel box girder 2 are hung on a pier through a hoisting device, then the left steel box girder 1 and the right steel box girder 2 are connected through a first fastening bolt 4, two extension girders 7 are sequentially hoisted and fixed on the left steel box girder 1 and the right steel box girder 2 through a second fastening bolt 8 respectively, a reinforcement beam column 6 which is obliquely arranged can increase the bearing capacity of a steel box girder top plate, a reinforcement rib 9 can increase the bearing capacity of the extension girders 7, in addition, circuits and pipelines on the bridge can pass through the pipeline hole 10 without being laid outside the bridge, and the internal space is fully utilized.
In addition, it should be noted that the present invention is not limited to the above embodiments, as long as the specific size or shape of the component is not specified, the component can be any size or shape corresponding to the structure, and no matter there is any change in the material composition, all the structural designs provided by the present invention are a variation of the present invention, which should be considered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a sectional type strides steel box girder greatly, includes the steel box girder body, the steel box girder body is including left steel box girder (1) and right steel box girder (2) that the symmetry was laid, the structure is the same, a serial communication port, left side steel box girder (1) and right steel box girder (2) are through first fastening bolt (4) interconnect, the web that first fastening bolt (4) run through left steel box girder (1) and right steel box girder (2) is fixed left steel box girder (1) and right steel box girder (2), extension roof beam (7) have been laid to the symmetry on the one side of keeping away from each other of left side steel box girder (1) and right steel box girder (2), extension roof beam (7) pass through second fastening bolt (8) respectively with left steel box girder (1) and right steel box girder (2) fixed connection.
2. The segmented long-span steel box girder of claim 1, wherein: the middle part all has welded cross slab (3) in left side steel box girder (1) and right steel box girder (2), the bottom plate of left side steel box girder (1) of cross slab (3) perpendicular to and right steel box girder (2), first fastening bolt (4) use cross slab (3) to establish in the both sides of web as central symmetry.
3. The segmented long-span steel box girder of claim 1, wherein: and the left steel box girder (1) and the right steel box girder (2) are respectively fixed with an upper support and a lower support on the inner wall of the top plate and the inner wall of the bottom plate, the upper supports and the lower supports are arranged in a staggered manner, and a reinforcing beam column (6) is welded between the adjacent upper supports and the lower supports.
4. The segmented long-span steel box girder of claim 3, wherein: the steel box girder comprises a top plate inner wall, a bottom plate inner wall and a reinforcing beam column (6), wherein two upper supports are arranged on the top plate inner wall, two lower supports are arranged on the bottom plate inner wall, a side support is arranged on the side plate inner wall of a left steel box girder (1) and a right steel box girder (2), and the reinforcing beam column and the top plate inner wall or the bottom plate inner wall or the side plate inner wall are enclosed to form a triangle.
5. The segmented long-span steel box girder of claim 4, wherein: the reinforcing beam columns (6) are all obliquely arranged, and the inclination angles of the two adjacent reinforcing beam columns (6) are the same.
6. The segmented long-span steel box girder of claim 1, wherein: the first fastening bolt (4) and the second fastening bolt (8) are high-strength bolts, and the first fastening bolt (4) and the second fastening bolt (8) comprise a bolt (11) and a nut (12).
7. The segmented long-span steel box girder of claim 1, wherein: the extension beam (7) is internally fixed with a plurality of reinforcing ribs (9) supported between the top plate and the bottom plate of the extension beam (7), and the reinforcing ribs (9) are arranged perpendicular to the ground.
8. The segmented long-span steel box girder of claim 2, wherein: the diaphragm plate (3) is provided with a pipeline hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020206756.2U CN212426680U (en) | 2020-02-25 | 2020-02-25 | Sectional type stride steel case roof beam greatly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020206756.2U CN212426680U (en) | 2020-02-25 | 2020-02-25 | Sectional type stride steel case roof beam greatly |
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| CN212426680U true CN212426680U (en) | 2021-01-29 |
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| CN202020206756.2U Active CN212426680U (en) | 2020-02-25 | 2020-02-25 | Sectional type stride steel case roof beam greatly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710853A (en) * | 2022-11-24 | 2023-02-24 | 中交建筑集团有限公司 | Sectional steel box girder |
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2020
- 2020-02-25 CN CN202020206756.2U patent/CN212426680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115710853A (en) * | 2022-11-24 | 2023-02-24 | 中交建筑集团有限公司 | Sectional steel box girder |
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