CN203854829U - Semi-submersible platform, upright column and conical transition structures thereof - Google Patents
Semi-submersible platform, upright column and conical transition structures thereof Download PDFInfo
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- CN203854829U CN203854829U CN201420244300.XU CN201420244300U CN203854829U CN 203854829 U CN203854829 U CN 203854829U CN 201420244300 U CN201420244300 U CN 201420244300U CN 203854829 U CN203854829 U CN 203854829U
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- 230000007704 transition Effects 0.000 title claims abstract description 85
- 210000003205 muscle Anatomy 0.000 claims description 72
- 238000003466 welding Methods 0.000 claims description 11
- 230000002035 prolonged effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The utility model provides a semi-submersible platform, an upright column and conical transition structures thereof. The semi-submersible platform comprises a float bowl, the upright column and a deck, wherein the upright column is fixed above the float bowl; the deck is fixed above the upright column; and the conical transition structures are respectively arranged at a connection position of the upright column and the float bowl and a connection position of the upright column and the deck; each conical transition structure comprises a conical plate and a first arc plate connected with the conical plate; and a first arc plate ring rib is arranged on the inner side surface of the first arc plate and is close to a connection position of the conical plate and the first arc plate. Stress concentration is reduced by the conical transition structures, and the fatigue life of the conical transition structures is prolonged. By using the conical transition structures, the stress concentration is reduced, and the fatigue life of the semi-submersible platform and the fatigue life of the upright column of the semi-submersible platform are prolonged.
Description
Technical field
The utility model relates to boats and ships and ocean engineering field, and particularly a kind of square-section for column is to the circular cone transition structure of rounding square-section transition, the semisubmersible platform with this circular cone transition structure and column thereof.
Background technology
At present, along with the development of offshore oil and gas engineering, the version of semisubmersible platform is tending towards, by four upright supports deck boxes, being supported the version of four columns by floating drum, and its central post develops into the version with the square-section of rounding by column structure.The position being connected with floating drum with deck box, column at column, when the square-section of column is transitioned into rounding square-section, has produced a circular cone transition structure.Yet traditional circular cone transition structure does not have its inner loop muscle of reasonable Arrangement, causes stress concentration phenomenon serious, reduced circular cone transition structure fatigue life, affect the safe reliability of semi-submersible type platform structure integral body.
Utility model content
An object of the present utility model is to solve the technical matters that circular cone transition structure stress concentration phenomenon of the prior art seriously causes reduction fatigue life of circular cone transition structure, and provide a kind of, can improve this circular cone transition structure circular cone transition structure of fatigue life.
Another object of the present utility model is to provide a kind of column with this circular cone transition structure.
Another object of the present utility model is to provide a kind of semisubmersible platform with this circular cone transition structure.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The utility model provides a kind of circular cone transition structure, transition for from square-section to rounding square-section, this circular cone transition structure comprises a circular cone plate and first arc plate being connected with described circular cone plate, on the medial surface of described the first arc plate and near the junction of described circular cone plate and described the first arc plate, one first arc plate ring muscle is set.
Described circular cone transition structure, described the first arc plate ring muscle is less than 50mm to the distance of described circular cone plate and described the first arc plate junction.
Described circular cone transition structure, the medial surface of described the first arc plate is also provided with one second arc plate ring muscle, and the distance between described the first arc plate ring muscle and the second arc plate ring muscle is not less than 200mm.
Described circular cone transition structure, described the first arc plate ring muscle and described the second arc plate ring muscle are an arc, described arc comprises an inner arc, an outer arc parallel with described inner arc and the flat board that connects described inner arc and described outer arc, described outer arc is connected directly on the medial surface of described the first arc plate, and radian, the arc length of the radian of described outer arc, arc length and described the first arc plate are suitable.
Described circular cone transition structure, described circular cone transition structure also comprises one second arc plate, described the first arc plate has a upper end and a lower end, and the upper end of described the first arc plate is connected with described circular cone plate, and the lower end of described the first arc plate is connected with described the second arc plate.
Described circular cone transition structure, described circular cone transition structure also comprises at least one reinforced rib, the upper end of described reinforced rib is connected on the dull and stereotyped downside of described the second arc plate ring muscle, and described reinforced rib extends to described the second arc plate by described the first arc plate.
Described circular cone transition structure, the length of described the first arc plate is not less than 300mm.
Described circular cone transition structure, the thickness of described the first arc plate ring muscle is not less than 0.5 times of described circular cone plate thickness, and the height of described the first arc plate ring muscle is not less than 7.5 times of described circular cone plate thickness.
Described circular cone transition structure, described circular cone plate and described the first arc plate shape have angle, and described angle is not less than 165 degree.
Described circular cone transition structure, the radian of described the first arc plate is not less than 0.5 π, and described circular cone plate is not less than 0.5 π near the radian of one end of described the first arc plate.
Described circular cone transition structure, described the first arc plate equates with the thickness of described circular cone plate.
Described circular cone transition structure, the medial surface of described circular cone plate arranges the circular cone plate ring muscle of a plurality of disposed at equal distance.
Described circular cone transition structure, described the first arc plate is that completepenetration docks welding manner with the connection mode of described circular cone plate, the connection mode of described the first arc plate ring muscle and described arc plate is completepenetration fillet weld seam mode.
The utility model separately provides a kind of column, for semisubmersible platform, described column has a upper surface, a lower surface and is connected the middle cylinder of described upper surface and described lower surface, described upper surface and described lower surface are a square-section, in the middle of described, the cross section of cylinder is rounding square-section, and the bight in described square-section to described rounding square-section transition position is provided with above-mentioned circular cone transition structure.
The utility model separately provides a kind of semisubmersible platform, this semisubmersible platform comprises floating drum, be fixed on the column of described floating drum top and the deck that is fixed on described column top, described column in the junction with described floating drum, described column is equipped with circular cone transition structure described above in the junction with described deck.
As shown from the above technical solution, advantage of the present utility model and good effect are:
Circular cone transition structure of the present utility model is by being arranged in the junction near circular cone plate and the first arc plate by the first arc plate ring muscle, make the location arrangements of the first arc plate ring muscle more reasonable, increased the horizontal rigidity of circular cone transition structure, make the first arc plate ring muscle can effectively transmit the stress of circular cone transition structure, fall stress concentration, thereby improve the fatigue life of circular cone transition structure.
Semisubmersible platform of the present utility model and column thereof, because adopting above-mentioned circular cone transition structure, have reduced stress and have concentrated, the fatigue life of having improved semisubmersible platform and column thereof.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model circular cone transition structure.
Fig. 2 is the inside structure schematic diagram of the utility model circular cone transition structure.
Fig. 3 is the structural representation of the utility model semisubmersible platform.
Fig. 4 is that circular cone transition structure of the present utility model is applied in the structural representation on column.
Fig. 5 is that the A of Fig. 4 is to structural representation.
Fig. 6 a to Fig. 6 e is respectively along the schematic cross-section of Fig. 5 transversal A1-A1, A2-A2, A3-A3, A4-A4, A5-A5.
The specific embodiment
The exemplary embodiment that embodies the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various variations on different embodiments, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be when the use that explain in essence, but not in order to limit the utility model.
Circular cone transition structure of the present utility model, can be applicable on semisubmersible platform, and the position being connected with floating drum with deck box, column at column arranges this circular cone transition structure, makes column be smoothly transitted into rounding square-section by square-section.
As depicted in figs. 1 and 2, Fig. 1 is the Facad structure schematic diagram of the utility model circular cone transition structure, and Fig. 2 is the inside structure schematic diagram of the utility model circular cone transition structure.This circular cone transition structure 10 comprises a circular cone plate 1, one first arc plate 2, a three-arc plate 3, be arranged on this circular cone plate circular cone plate ring muscle 41,42,43 and be arranged on the first arc plate ring muscle 44, the second arc plate ring muscle 45 on the first arc plate 2.
Circular cone plate 1 is connected with the first arc plate 2, and the shape α that has angle between the lateral surface of circular cone plate 1 and the lateral surface of the first arc plate 2, and this angle α is not less than 165 degree.This circular cone plate 1 is not less than 0.5 π near the radian of one end of the first arc plate 2, and corresponding, the radian of the first arc plate 2 is also not less than 0.5 π.Circular cone plate 1 equates with the thickness of the first arc plate 2, when both connect, adopts uniform thickness docking welding, and is full penetration, and after welding, the fairing of polishing at butt weld 12 places.At this, circular cone plate 1 and the first arc plate 2 adopt uniform thickness dock welding and have eliminated the extra-stress that welding process produces and concentrate, the fatigue life of raising butt weld 12.
Circular cone plate ring muscle 41,42,43 is arranged on the medial surface of circular cone plate 1 equally spacedly, this circular cone plate ring muscle 41,42,43 is an arc, those arcs are parallel to each other and form a leaning angle with circular cone plate 1, and the radian of those arcs, arc length and circular cone plate 1 are suitable.The concrete structure of this circular cone plate ring muscle 41,42,43, as Fig. 6 a to 6c, be take Fig. 6 a as example, and the structure of circular cone plate ring muscle is described.As shown in Figure 6 a, circular cone plate ring muscle 41 comprise the inner arc 412 that an outer arc 411, is parallel with this outer arc 411 and be formed on inner arc 412 and outer arc 411 between flat board 413.This outer arc 411 is connected directly on the medial surface of circular cone plate 1, and radian, the arc length of the radian of outer arc 411, arc length and circular cone plate 1 are suitable.
On the downside of circular cone plate 1 and the first arc plate 2 butt welds 12 and the first arc plate 2 near butt weld 12 places, weld one first arc plate ring muscle 44, this first arc plate ring muscle 44 is less than 50mm to the distance at butt weld 12 places of circular cone plate 1 and the first arc plate 2.On the first arc plate 2, corresponding to the distance that is also welded with the second arc plate ring muscle 45, the second arc plate ring muscle 45 to first arc plate ring muscle 44 below the first arc plate ring muscle 44, be not less than 200mm.As shown in Fig. 6 d and Fig. 6 e, this first arc plate ring muscle 44 comprise an outer arc 441, the inner arc 442 parallel with this outer arc 441 and be formed on inner arc 442 and outer arc 441 between flat board 443.This second arc plate ring muscle 45 comprise an outer arc 451, the inner arc 452 parallel with this outer arc 451 and be formed on inner arc 452 and outer arc 451 between flat board 453.And in conjunction with shown in Fig. 2, this outer arc 441,451 is connected directly on the medial surface of the first arc plate 2, and radian, the arc length of the radian of outer arc 441,451, arc length and the first arc plate 2 are suitable.Wherein, the first arc plate ring muscle 44 can be band steel, its thickness is not less than 0.5 times of circular cone plate 1 thickness, highly be not less than 7.5 times of circular cone plate 1 thickness, to guarantee that the first arc plate ring muscle 44 has enough rigidity, make when stress is delivered to the first arc plate 2 by circular cone plate 1, the extra moment of flexure producing at butt weld 12 places is born by the first arc plate ring muscle 44 rigidity own, improves the fatigue life at butt weld 12 places.In addition, the length of the first arc plate is not less than 300mm.
As shown in Figure 1, the first arc plate 2 has 2aHe Yi lower end, a upper end 2b, and its upper end 2a is connected with circular cone plate 1, and its lower end 2b is connected with the second arc plate 3.The thickness of the first arc plate 2 is greater than the thickness of the second arc plate 3.The first arc plate 2 adopts the mode of eccentric welding to be connected with the second arc plate 3.This bias welding refers to when the plate of two different wall welds, the wherein alignment on one side of two plates, and another side does not line up.
As depicted in figs. 1 and 2, circular cone transition structure 10 of the present utility model also comprises a plurality of reinforced ribs 5, the upper end of this reinforced rib 5 is connected on the downside of the second arc plate ring muscle 45 flat boards, and this reinforced rib 5 extends to the second arc plate 3 from the first arc plate ring muscle 45 of the first arc plate 2, and this reinforced rib 5 is fixed on the vertical medial surface of the first arc plate 2 and the second arc plate 3 in the mode of full penetration.
In addition, in order to strengthen the intensity between the second arc plate ring muscle 45 and reinforced rib 5, preferably, at the downside of the second arc plate ring muscle 45 flat boards with at reinforced rib 5, on the side away from the first arc plate 2, weld a bracket 6.
The welding of above-mentioned circular cone plate ring muscle 41,42,43 and circular cone plate 1 can be completepenetration fillet weld seam, and the welding of the first arc plate ring muscle 44, the second arc plate ring muscle 45 and the first arc plate 2 also can be completepenetration fillet weld seam.
As shown in Figure 3, Fig. 3 is the structural representation of the utility model semisubmersible platform in the application of above-mentioned circular cone transition structure 10 on semisubmersible platform.The deck 23 that this semisubmersible platform 20 comprises floating drum 21, is fixed on the column 22 of floating drum 21 tops and is fixed on column 22 tops, is also laid with living community module and cabin module etc. on deck 23.As shown in the dashed rectangle of Fig. 3, column 22 in the junction with floating drum 21, column 22 is equipped with above-mentioned circular cone transition structure 10 in the junction with deck 23.
As shown in Figure 4 and Figure 5, Fig. 4 is that circular cone transition structure of the present utility model is applied in the structural representation on column, and the A that Fig. 5 is Fig. 4 is to structural representation.Column 22 has a upper surface 224, a lower surface (not shown) and the middle cylinder 225 that is connected 224He lower surface, upper surface.224He lower surface, upper surface is a square-section, the cross section of middle cylinder 225 is rounding square-section, this square-section arranges this circular cone transition structure 10 to the corner positions of rounding square-section transition position, makes the square-section of column 22 be smoothly transitted into rounding square-section.More specifically, this column 22 has two mutually perpendicular bulkhead 221, two bulkhead 221 intersections and has a rounding, and this circular cone transition structure 10 is welded in two bulkhead 221 intersections.Circular cone plate ring muscle 41～43, the first arc plate ring muscle 44 and the second arc plate ring muscle 45 are welded on the medial surface of circular cone transition structure 10, and the connection structure of itself and column 22 bulkheads 221 is as shown in Fig. 6 a to Fig. 6 e.Take Fig. 6 a below as example, the connection structure of circular cone plate ring muscle or arc plate ring muscle and column 22 is described.As shown in Figure 6 a, the outside face 411a of the outer arc 411 of circular cone plate ring muscle 41 is directly welded on the medial surface of circular cone transition structure 10, dull and stereotyped 413 both ends of the surface 413a is welded on the bulkhead 221 of column 22, and 412 of inner arcs are welded in the vertical tendon 222 being arranged on bulkhead 221.In like manner, circular cone plate ring muscle 42,43, the first arc plate ring muscle 44 and the second arc plate ring muscle 45 are identical with the connection mode of column 22 with connection mode and the circular cone plate ring muscle 41 of column 22, and this is no longer going to repeat them.
In addition, as shown in Fig. 6 a to Fig. 6 e, the radian of circular cone plate ring muscle 41～43, the first arc plate ring muscle 44 and the second arc plate ring muscle 45 increases gradually, and wherein the radian of the second arc plate ring muscle 45 is maximum.In addition, different from other circular cone plate ring muscle, between the inner arc 452 of the second arc plate ring muscle 45 and outer arc 451, be also welded with flat bulb steel 223.
The utlity model has following distinguishing feature:
Circular cone transition structure of the present utility model is by being arranged in the position near circular cone plate and the first arc plate junction by the first arc plate ring muscle, make when stress is delivered to the first arc plate by circular cone plate, extra moment of flexure in circular cone plate and the generation of the first arc plate commissure is born by the rigidity of the first arc plate ring muscle own, improves the fatigue life of commissure.
The circular cone plate of circular cone transition structure of the present utility model and the first arc plate uniform thickness, and docking welding, concentrate the fatigue life of having improved circular cone transition structure thereby actv. has improved the stress of circular cone transition structure.
Although described the utility model with reference to several exemplary embodiment, should be appreciated that term used is explanation and exemplary and nonrestrictive term.Because the utility model can specifically be implemented in a variety of forms and not depart from spirit or the essence of utility model, so be to be understood that, above-mentioned embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in the claim of enclosing, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (15)
1. a circular cone transition structure, transition for from square-section to rounding square-section, it is characterized in that, comprise a circular cone plate and first arc plate being connected with described circular cone plate, on the medial surface of described the first arc plate and near the junction of described circular cone plate and described the first arc plate, one first arc plate ring muscle is set.
2. circular cone transition structure according to claim 1, is characterized in that, described the first arc plate ring muscle is less than 50mm to the distance of described circular cone plate and described the first arc plate junction.
3. circular cone transition structure according to claim 1, is characterized in that, the medial surface of described the first arc plate is also provided with one second arc plate ring muscle, and the distance between described the first arc plate ring muscle and the second arc plate ring muscle is not less than 200mm.
4. circular cone transition structure according to claim 3, it is characterized in that, described the first arc plate ring muscle and described the second arc plate ring muscle are an arc, described arc comprises an inner arc, an outer arc parallel with described inner arc and the flat board that connects described inner arc and described outer arc, described outer arc is connected directly on the medial surface of described the first arc plate, and radian, the arc length of the radian of described outer arc, arc length and described the first arc plate are suitable.
5. circular cone transition structure according to claim 4, it is characterized in that, described circular cone transition structure also comprises one second arc plate, described the first arc plate has a upper end and a lower end, the upper end of described the first arc plate is connected with described circular cone plate, and the lower end of described the first arc plate is connected with described the second arc plate.
6. circular cone transition structure according to claim 5, it is characterized in that, described circular cone transition structure also comprises at least one reinforced rib, the upper end of described reinforced rib is connected on the dull and stereotyped downside of described the second arc plate ring muscle, and described reinforced rib extends to described the second arc plate by described the first arc plate.
7. circular cone transition structure according to claim 3, is characterized in that, the length of described the first arc plate is not less than 300mm.
8. circular cone transition structure according to claim 1, is characterized in that, the thickness of described the first arc plate ring muscle is not less than 0.5 times of described circular cone plate thickness, and the height of described the first arc plate ring muscle is not less than 7.5 times of described circular cone plate thickness.
9. circular cone transition structure according to claim 1, is characterized in that, described circular cone plate and described the first arc plate shape have angle, and described angle is not less than 165 degree.
10. circular cone transition structure according to claim 1, is characterized in that, the radian of described the first arc plate is not less than 0.5 π, and described circular cone plate is not less than 0.5 π near the radian of one end of described the first arc plate.
11. circular cone transition structures according to claim 1, is characterized in that, described the first arc plate equates with the thickness of described circular cone plate.
12. circular cone transition structures according to claim 1, is characterized in that, the medial surface of described circular cone plate arranges the circular cone plate ring muscle of a plurality of disposed at equal distance.
13. circular cone transition structures according to claim 1, it is characterized in that, described the first arc plate is that completepenetration docks welding manner with the connection mode of described circular cone plate, and the connection mode of described the first arc plate ring muscle and described arc plate is completepenetration fillet weld seam mode.
14. 1 kinds of columns, for semisubmersible platform, it is characterized in that, described column has a upper surface, a lower surface and is connected the middle cylinder of described upper surface and described lower surface, described upper surface and described lower surface are a square-section, in the middle of described, the cross section of cylinder is rounding square-section, and the bight in described square-section to described rounding square-section transition position is provided with the circular cone transition structure as described in claim 1 to 13 any one.
15. 1 kinds of semisubmersible platforms, it is characterized in that, the deck that comprises floating drum, is fixed on the column of described floating drum top and is fixed on described column top, described column in the junction with described floating drum, described column is equipped with the circular cone transition structure as described in claim 1 to 13 any one in the junction with described deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244300.XU CN203854829U (en) | 2014-05-13 | 2014-05-13 | Semi-submersible platform, upright column and conical transition structures thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420244300.XU CN203854829U (en) | 2014-05-13 | 2014-05-13 | Semi-submersible platform, upright column and conical transition structures thereof |
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| CN203854829U true CN203854829U (en) | 2014-10-01 |
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| CN201420244300.XU Expired - Fee Related CN203854829U (en) | 2014-05-13 | 2014-05-13 | Semi-submersible platform, upright column and conical transition structures thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314700A (en) * | 2015-07-02 | 2017-01-11 | 烟台中集来福士海洋工程有限公司 | Ocean platform, connecting bracket plate, and design method of connecting bracket plate |
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2014
- 2014-05-13 CN CN201420244300.XU patent/CN203854829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314700A (en) * | 2015-07-02 | 2017-01-11 | 烟台中集来福士海洋工程有限公司 | Ocean platform, connecting bracket plate, and design method of connecting bracket plate |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20210513 |