CN205077474U - Structure is alleviated to platform elongated structure's vortex induced vibration - Google Patents
Structure is alleviated to platform elongated structure's vortex induced vibration Download PDFInfo
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- CN205077474U CN205077474U CN201520819862.7U CN201520819862U CN205077474U CN 205077474 U CN205077474 U CN 205077474U CN 201520819862 U CN201520819862 U CN 201520819862U CN 205077474 U CN205077474 U CN 205077474U
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Abstract
The utility model provides a structure is alleviated to platform elongated structure's vortex induced vibration, includes: the vortex induced vibration member of setting between the long and thin chord member of platform, set up the short bracing of first short bracing, second in the upper and lower both sides of vortex induced vibration member respectively, wherein, the first short bracing of vortex induced vibration member both sides, the short bracing of second are certain distance or relative setting of staggering. The utility model discloses simple structure has not only improved the intrinsic dynamic characteristics of platform primary structure, reduces the vortex induced vibration harm of long and thin component effectively, and, save steel quantity, the dead weight that has alleviateed the platform structure greatly.
Description
Technical field
The utility model relates to offshore platform structure, particularly relate to a kind of for elongated and ocean platform tall and slender structure, and the vortex-induced vibration that can improve the ocean platform slim-lined construction of offshore platform structure natural dynamics behaviors alleviates structure.Belong to field of ocean engineering.
Background technology
In offshore platform structure, usually need Accessory Members be set, to meet the needs of equipment and pipeline support.It is large that this type of works generally has span, and length is much larger than the feature of sectional dimension.Typical structure has flare boom, discharge arm and various pylon structures etc.
Along with the increasing of ocean platform PROCESS FOR TREATMENT amount, the long degree of refinement of corresponding braced structures yardstick and component also increases thereupon.Because above-mentioned factor causes rod member under wind-force effect, its possibility producing vortex-induced vibration also strengthens further.Once generation vortex-induced vibration, produce great impact by the safety of offshore platform structure thing.Therefore, in order to avoid the generation of vortex-induced vibration, in the adjustment and Vortex-induced vibration analysis of flare boom rod member rigidity, supporting form, all consume a large amount of time and manpower.Vortex-induced vibration to a certain extent, has become the governing factor of this type of structure design.
Utility model content
Main purpose of the present utility model is the above-mentioned shortcoming overcoming prior art existence, and provide a kind of vortex-induced vibration of ocean platform slim-lined construction to alleviate structure, its structure is simple, not only improve the natural dynamics behaviors of ocean platform original structure, effectively reduce the vortex-induced vibration harm of slender member; And, greatly save rolled steel dosage, alleviate the deadweight of offshore platform structure.
The purpose of this utility model is realized by following technical scheme:
A kind of vortex-induced vibration of ocean platform slim-lined construction alleviates structure, it is characterized in that: comprising: be arranged on the vortex-induced vibration rod member between ocean platform elongate chord, be separately positioned on the first short diagonal brace of the upper and lower both sides of vortex-induced vibration rod member, the second short diagonal brace, wherein, first of vortex-induced vibration rod member both sides the short diagonal brace, the second short diagonal brace are certain distance setting of staggering.
A kind of vortex-induced vibration of ocean platform slim-lined construction alleviates structure, it is characterized in that: comprising: be arranged on the vortex-induced vibration rod member between ocean platform elongate chord, be separately positioned on the 3rd short diagonal brace of the upper and lower both sides of vortex-induced vibration rod member, and two the 3rd short diagonal braces are oppositely arranged, and an X-shaped structure is formed together with vortex-induced vibration rod member, the 3rd short diagonal brace is separately installed with an energy absorption units relative to the end of vortex-induced vibration rod member.
Described energy absorption units is be sleeved on the grouting pipe nipple on the 3rd short diagonal brace, and the diameter of this grouting pipe nipple is greater than the diameter of the 3rd short diagonal brace.
The beneficial effects of the utility model: the utility model is owing to adopting technique scheme, and its structure is simple, not only improves the natural dynamics behaviors of ocean platform original structure, reduce the vortex-induced vibration harm of slender member effectively; And, greatly save rolled steel dosage, alleviate the deadweight of offshore platform structure.
Accompanying drawing explanation
Fig. 1 is the short diagonal brace schematic diagram of the utility model structure Y type.
Fig. 2 is the short diagonal brace schematic diagram of the utility model X-type.
Major label description in figure:
1. the first short diagonal brace, 2. the second short diagonal brace, 3. vortex-induced vibration rod member, 4. the 3rd short diagonal brace, 5. energy absorption units, 6. vortex-induced vibration rod member, 7. chord member.
Detailed description of the invention
As shown in Figure 1, the utility model comprises: adopt welding manner to be arranged on vortex-induced vibration rod member 3 between ocean platform elongate chord 7, adopt welding manner to be separately positioned on the short diagonal brace 2 of the first short diagonal brace 1, second of the upper and lower both sides of vortex-induced vibration rod member 3, wherein, the short diagonal brace 2 of first of vortex-induced vibration rod member 3 both sides the short diagonal brace 1, second is certain distance setting of staggering.When vortex-induced vibration rod member 3, in working sea area, vortex-induced vibration will occur, the short diagonal brace 2 of the first short diagonal brace 1, second can improve the dynamic characteristics of vortex-induced vibration rod member 3.
When still calculating the whirlpool exciting that can not improve vortex-induced vibration rod member 3 by the short diagonal brace 2 of the short diagonal brace of increase by first 1, second, then adopt following structure.
As shown in Figure 2, the utility model comprises: adopt welding manner to be arranged on vortex-induced vibration rod member 6 between ocean platform elongate chord 7, be separately positioned on the 3rd short diagonal brace 4 of the upper and lower both sides of vortex-induced vibration rod member 6, and two the 3rd short diagonal braces 4 are oppositely arranged, and an X-shaped structure is formed together with vortex-induced vibration rod member 3, the 3rd short diagonal brace 4 adopts welding manner to be separately installed with an energy absorption units 5 relative to the end of vortex-induced vibration rod member 3.
Above-mentioned energy absorption units 5 is for being sleeved on the grouting pipe nipple on the 3rd short diagonal brace 4, and the diameter of this grouting pipe nipple is greater than the diameter of the 3rd short diagonal brace 4.
Advantage of the present utility model: by arranging short diagonal brace and overstriking grouting pipe nipple to slender member 3 specific position, the obvious natural dynamics behaviors improving original structure, effectively reduce the vortex-induced vibration harm of slender member, meet structure and vortex-induced vibration destruction does not occur at a certain wind speed.Under equal conditions save rolled steel dosage, alleviate dead load.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. the vortex-induced vibration of an ocean platform slim-lined construction alleviates structure, it is characterized in that: comprising: be arranged on the vortex-induced vibration rod member between ocean platform elongate chord, be separately positioned on the first short diagonal brace of the upper and lower both sides of vortex-induced vibration rod member, the second short diagonal brace, wherein, first of vortex-induced vibration rod member both sides the short diagonal brace, the second short diagonal brace are certain distance setting of staggering.
2. the vortex-induced vibration of an ocean platform slim-lined construction alleviates structure, it is characterized in that: comprising: be arranged on the vortex-induced vibration rod member between ocean platform elongate chord, be separately positioned on the 3rd short diagonal brace of the upper and lower both sides of vortex-induced vibration rod member, and two the 3rd short diagonal braces are oppositely arranged, and an X-shaped structure is formed together with vortex-induced vibration rod member, the 3rd short diagonal brace is separately installed with an energy absorption units relative to the end of vortex-induced vibration rod member.
3. the vortex-induced vibration of ocean platform slim-lined construction according to claim 2 alleviates structure, it is characterized in that: described energy absorption units is be sleeved on the grouting pipe nipple on the 3rd short diagonal brace, and the diameter of this grouting pipe nipple is greater than the diameter of the 3rd short diagonal brace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819862.7U CN205077474U (en) | 2015-10-21 | 2015-10-21 | Structure is alleviated to platform elongated structure's vortex induced vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520819862.7U CN205077474U (en) | 2015-10-21 | 2015-10-21 | Structure is alleviated to platform elongated structure's vortex induced vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205077474U true CN205077474U (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520819862.7U Active CN205077474U (en) | 2015-10-21 | 2015-10-21 | Structure is alleviated to platform elongated structure's vortex induced vibration |
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| Country | Link |
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| CN (1) | CN205077474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442399A (en) * | 2018-03-21 | 2018-08-24 | 大连理工大学 | A kind of light shock-proof jacket basis using overlap joint pipe node completely |
| CN113981934A (en) * | 2021-10-14 | 2022-01-28 | 江苏航运职业技术学院 | Vortex-induced vibration mitigation structure of slender structure of ocean platform |
-
2015
- 2015-10-21 CN CN201520819862.7U patent/CN205077474U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442399A (en) * | 2018-03-21 | 2018-08-24 | 大连理工大学 | A kind of light shock-proof jacket basis using overlap joint pipe node completely |
| CN108442399B (en) * | 2018-03-21 | 2023-12-01 | 大连理工大学 | Light anti-seismic jacket foundation adopting complete joint pipe nodes |
| CN113981934A (en) * | 2021-10-14 | 2022-01-28 | 江苏航运职业技术学院 | Vortex-induced vibration mitigation structure of slender structure of ocean platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation |