CN205295919U - Steel box girder access door structure - Google Patents
Steel box girder access door structure Download PDFInfo
- Publication number
- CN205295919U CN205295919U CN201620044670.8U CN201620044670U CN205295919U CN 205295919 U CN205295919 U CN 205295919U CN 201620044670 U CN201620044670 U CN 201620044670U CN 205295919 U CN205295919 U CN 205295919U
- Authority
- CN
- China
- Prior art keywords
- manhole
- steel box
- web
- girder
- maintenance door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000012423 maintenance Methods 0.000 claims description 36
- 239000003351 stiffener Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a steel bridge structure technical field discloses a steel box girder access door structure. It includes access door manhole, manhole cover board, web reinforcing ring and seal gasket, the access door manhole is seted up on the steel box girder web, the peripheral web inside and outside of access door manhole all is provided with the web reinforcing ring, the manhole cover board covers on the access door manhole and articulates mutually with the steel box girder, be provided with seal gasket between manhole cover board and the web reinforcing ring. The access door is simple in structure, convenient to manufacture and low in processing cost. The flexibility is good, is convenient for open and close, and sealing performance is good.
Description
Technical field
This utility model relates to Steel Bridge technical field of structures, especially a kind of steel box-girder maintenance door.
Background technology
In steel case bridge construction, carry out last operation for the ease of in-site installation personnel at box house and in the later stage, steel case bridge carried out M R, generally steel maintenance door being set in steel case bridge web position. But maintenance door of the prior art is complex, and airtight performance is poor, it is impossible to meet steel box-girder general design requirement.
Utility model content
Technical problem to be solved in the utility model is to provide the steel case bridge maintenance door that a kind of fabrication and installation are convenient, security seal performance is good.
Disclosed in this utility model, steel box-girder maintenance door includes maintenance door manhole, cover plate for manhole, web stiffening ring and gasket seal, described maintenance door manhole is opened on steel box-girder web, in the web of described maintenance door manhole periphery, outside is provided with described web stiffening ring, described cover plate for manhole is covered on maintenance door manhole and is hinged with steel box-girder, is provided with gasket seal between described cover plate for manhole and web stiffening ring.
Preferably, described cover plate for manhole being connected to the first connector, be provided with the second connector on steel box-girder, described first connector and the second connector are hinged.
Preferably, described web stiffening ring includes inner stiffener ring and outer stiffening ring, and described outer stiffening ring is arranged at steel box-girder web outside, and described inner stiffener ring is arranged at inside steel box-girder web, and described cover plate for manhole is covered on inner stiffener ring.
Preferably, described cover plate for manhole neighboring is along being provided with cover plate stiffening ring.
Preferably, in described cover plate for manhole, outside is provided with handle.
Preferably, described maintenance door manhole and cover plate for manhole are oval, and described web stiffening ring and gasket seal are oval ring.
The beneficial effects of the utility model are: by web stiffening ring strengthening web in this steel box-girder maintenance door, alleviate the maintenance door opening and closing damage possibly for web, and by arranging gasket seal between blind patch and web stiffening ring, strengthen the sealing effectiveness of maintenance door, its simple in construction, easy to make, processing cost is low. Motility is good, it is simple to open and close, good seal performance.
Accompanying drawing explanation
Fig. 1 is elevational schematic view of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1.
Accompanying drawing labelling: web 1, cover plate for manhole 2, cover plate stiffening ring 3, inner stiffener ring 4, outer stiffening ring 5, gasket seal 6, the first connector 7, the second connector 8, shake hands 9.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further illustrated.
As shown in Figure 1 and Figure 2, steel box-girder maintenance door disclosed in this utility model, including maintenance door manhole, cover plate for manhole 2, web stiffening ring and gasket seal 6, described maintenance door manhole is opened on steel box-girder web 1, in the web 1 of described maintenance door manhole periphery, outside is provided with described web stiffening ring, described cover plate for manhole 2 is covered on maintenance door manhole and is hinged with steel box-girder, is provided with gasket seal 6 between described cover plate for manhole 2 and web stiffening ring.
Inspection manhole is opened on steel box-girder web 1 as maintenance door, it is preferred to use being sized to the slotted eye of 400mm �� 600mm, manhole is centrally disposed in the position that 1/2 steel box-girder is high. Web stiffening ring is installed on inside and outside the web 1 of inspection manhole periphery, it is preferred to use oval ring, its boring ratio web 1 slightly larger 10mm of manhole, is namely of a size of 420mm �� 620mm, and web stiffening ring overall width is preferably 80mm, and thickness is 12mm. Cover plate for manhole 2 can adopt the long ellipse of 6mm, 600mm �� 800mm. Gasket seal 6 generally adopts quality of rubber materials, is similarly oval ring flat-plate, and width is 60mm, and thickness 8mm is arranged between interior reinforcing washer and cover plate for manhole 2, primarily serves the purpose of environment between sealing steel case bridge inside and outside.
Cover plate for manhole 2 needs to be hinged on steel box-girder, so that the keying of maintenance door, for making articulated structure not interference with the structure such as web stiffening ring of maintenance door manhole periphery, as shown in Figure 3, it is preferred that, being connected to the first connector 7 on described cover plate for manhole 2, be provided with the second connector 8 on steel box-girder, described first connector 7 and the second connector 8 are hinged. For ensureing stablizing of maintenance door, first connector 7 generally arranges two, it is two pairs that second connector 8 is then correspondingly arranged, every couple of second middle clear spacing 14mm of connector 8, termination arranges slotted hole �� 20 �� 30, by the bolt of M16, the first connector 7 and the second connector 8 are connected, reserved 2mm gap between connector.
Cover plate for manhole 2 generally may be disposed at inside web 1 or outside, if but it is arranged at outside web 1, easily it is affected by the external environment, therefore it is preferred that, described web stiffening ring includes inner stiffener ring 4 and outer stiffening ring 5, described outer stiffening ring 5 is arranged at outside steel box-girder web 1, described inner stiffener ring 4 is arranged at inside steel box-girder web 1, and described cover plate for manhole 2 is covered on inner stiffener ring 4.
If cover sheet thickness is little, then it is easily deformed, if blocked up, its weight can be caused excessive, for solving this contradiction, it is preferred that, described cover plate for manhole 2 neighboring is along being provided with cover plate stiffening ring 3. So just can adopt relatively thin cover plate, take into account cover plate intensity so that it is be unlikely to deform and affect airtight performance simultaneously.
Additionally, for convenience of the smooth opening when maintenance or closedown maintenance door, it is preferred that, in described cover plate for manhole 2, outside is provided with handle 9.
Claims (6)
1. steel box-girder maintenance door, it is characterized in that: include maintenance door manhole, cover plate for manhole (2), web stiffening ring and gasket seal (6), described maintenance door manhole is opened on steel box-girder web (1), in the web (1) of described maintenance door manhole periphery, outside is provided with described web stiffening ring, described cover plate for manhole (2) is covered on maintenance door manhole and is hinged with steel box-girder, is provided with gasket seal (6) between described cover plate for manhole (2) and web stiffening ring.
2. steel box-girder maintenance door as claimed in claim 1, it is characterized in that: described cover plate for manhole (2) is connected to the first connector (7), being provided with the second connector (8) on steel box-girder, described first connector (7) and the second connector (8) are hinged.
3. steel box-girder maintenance door as claimed in claim 2, it is characterized in that: described web stiffening ring includes inner stiffener ring (4) and outer stiffening ring (5), described outer stiffening ring (5) is arranged at steel box-girder web (1) outside, described inner stiffener ring (4) is arranged at steel box-girder web (1) inner side, and described cover plate for manhole (2) is covered on inner stiffener ring (4).
4. steel box-girder maintenance door as claimed in claim 1, it is characterised in that: described cover plate for manhole (2) neighboring is along being provided with cover plate stiffening ring (3).
5. steel box-girder maintenance door as claimed in claim 1, it is characterised in that: in described cover plate for manhole (2), outside is provided with handle (9).
6. the steel box-girder maintenance door as described in any claim in claim 1 to 5, it is characterized in that: described maintenance door manhole and cover plate for manhole (2) are ellipse, and described web stiffening ring and gasket seal (6) are oval ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044670.8U CN205295919U (en) | 2016-01-18 | 2016-01-18 | Steel box girder access door structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044670.8U CN205295919U (en) | 2016-01-18 | 2016-01-18 | Steel box girder access door structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205295919U true CN205295919U (en) | 2016-06-08 |
Family
ID=56428552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620044670.8U Active CN205295919U (en) | 2016-01-18 | 2016-01-18 | Steel box girder access door structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205295919U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594240A (en) * | 2019-10-14 | 2019-12-20 | 常州液压成套设备厂有限公司 | Waterproof sealing frame |
| CN112921836A (en) * | 2021-04-14 | 2021-06-08 | 中国十九冶集团有限公司 | Watertight access door structure of steel box arch bridge |
| CN114182626A (en) * | 2021-11-23 | 2022-03-15 | 上海市政工程设计研究总院（集团）有限公司 | Support safety cover |
-
2016
- 2016-01-18 CN CN201620044670.8U patent/CN205295919U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594240A (en) * | 2019-10-14 | 2019-12-20 | 常州液压成套设备厂有限公司 | Waterproof sealing frame |
| CN112921836A (en) * | 2021-04-14 | 2021-06-08 | 中国十九冶集团有限公司 | Watertight access door structure of steel box arch bridge |
| CN114182626A (en) * | 2021-11-23 | 2022-03-15 | 上海市政工程设计研究总院（集团）有限公司 | Support safety cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |