CN107165147A - A kind of new lattice spud leg of self-elevating ocean platform - Google Patents
A kind of new lattice spud leg of self-elevating ocean platform Download PDFInfo
- Publication number
- CN107165147A CN107165147A CN201710348940.3A CN201710348940A CN107165147A CN 107165147 A CN107165147 A CN 107165147A CN 201710348940 A CN201710348940 A CN 201710348940A CN 107165147 A CN107165147 A CN 107165147A
- Authority
- CN
- China
- Prior art keywords
- spud leg
- self
- ocean platform
- steel pipe
- steel tube
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B2017/0056—Platforms with supporting legs
Abstract
The invention discloses a kind of new lattice spud leg of self-elevating ocean platform, including the spud leg body that triangular parallel is set, it is characterised in that：The spud leg body includes rectangular steel tube, is welded with round steel pipe by the ribbed stiffener set along its length inside the rectangular steel tube, and the round steel pipe inner hollow water filling is filled with concrete between the rectangular steel tube and the round steel pipe.The new lattice spud leg of self-elevating ocean platform of the present invention has that stability is high, bearing capacity is strong, with low cost, corrosion resistance is strong, shock resistance is excellent, easy to maintenance and long service life the characteristics of.
Description
Technical field
The present invention relates to ocean platform equipment technology field, a kind of new lattice stake of self-elevating ocean platform is specifically referred to
Leg.
Background technology
Along with the fast development of ocean platform steel construction, the defect in its performance also gradually shows.Advised greatly in steel construction
The normal carbon Steel material of mould application is easily corroded under the corrosive atmosphere of strand, particularly ocean platform supporting member, long
Phase is soaked in seawater, and structural steel is influenceed especially prominent by the Korrosionsmedium such as seawater and marine organisms attachment, is not only broken
The overall appearance of ocean platform is broken, can also weaken support steel member section, its bearing capacity is reduced, has a strong impact on ocean platform
Security and durability.In addition, in the long-term ocean platform by freeze thawing ambient influnence in cold marine site, the low temperature of structural steel
Cold short characteristic is further degrading the combination property of ocean platform steel construction, exacerbates becoming for offshore platform structure brittle break
Gesture.The appearance of stainless steel fundamentally compensate for the shortcoming that steel construction is easy to corrosion.Stainless steel has good antirust resistance to
Rotten performance, greatly extends the service life of structure.In addition, stainless steel also has preferable resistance to low temperature, in low temperature bar
Impact flexibility under part is better than ordinary carbon steel, thus can preferably be applied to cold district, improves structure resistance low temperature cold
Crisp performance.As a kind of emerging construction material, stainless steel is on the basis of structure function is realized, moreover it is possible to meet beauty of architecture
, antirust rotproofness, durability and it is easy to maintain etc. require, the perfect unity of structural behaviour and the aesthetics of architecture can be reached.Together
When, stainless steel is easily recycled and recycled, and economizes on resources to greatest extent, environmental protection and reduction pollute, meets green and build
The requirement of low-carbon environment-friendly is built, is conducive to the long-term sustainable of building structure to develop, thus in many engineering fields especially ocean
Platform structure has wide applicability and splendid application prospect.But even to this day, stainless steel is used as main supporting member
Application in building structure is also very limited, and this causes put into its initial stage mainly due to stainless steel material fancy price
This is higher, so as to constrain large-scale application of the stainless steel in building structure field.
Although generally accepting stainless steel in world wide as the minimum economical construction material of overall life cycle cost,
Building structure field has broad application prospects, but high material cost at initial stage still allows the promotion and application of stainless steel to be lifted
Step dimension is difficult.Therefore, for the service life of the premium properties, as far as possible extending structure that play stainless steel material to greatest extent, and
By integral constructing cost control within zone of reasonableness, stainless steel component is often processed to thin-walled form further to improve material
The service efficiency of material, and make full use of its strain hardening stage to improve the design strength of material, so as to reduce cost, obtain more
Good economic benefit.But on the other hand, it is more prominent that thin-wall stainless steel component often leads to its stable problem, it is difficult to fully send out
Wave the mechanical property of material, it is necessary to which the resistance to overturning and part that thin-wall stainless steel component is improved by setting up ribbed stiffener are steady
It is qualitative.It is worth noting that, for being widely used in science of bridge building, pylon structure and the steel-tube construction of ocean platform, in order to protect
The overall appearance of structure is held, often selects the mode of built-in ribbed stiffener to be strengthened, and when steel tube section is smaller and length is longer
When, built-in ribbed stiffener often brings larger difficulty to construction.
The content of the invention
It is an object of the invention to provide a kind of new lattice spud leg of self-elevating ocean platform, with stability height, pressure-bearing
Ability is strong, with low cost, corrosion resistance is strong, shock resistance is excellent, easy to maintenance and long service life the characteristics of.
The present invention can be achieved through the following technical solutions：
The invention discloses a kind of new lattice spud leg of self-elevating ocean platform, including the spud leg sheet that triangular parallel is set
Body, the spud leg body includes being welded with by the ribbed stiffener set along its length inside rectangular steel tube, the rectangular steel tube
Round steel pipe, the round steel pipe inner hollow water filling is filled with concrete between the rectangular steel tube and the round steel pipe.
Further, the rectangular steel tube is square shape, and the ribbed stiffener is arranged on four sides inside the rectangular steel tube
Centre position.
Further, the ribbed stiffener is to be provided with weld seam between double rib parallel constructions, described pair of rib.
Further, the spud leg body quantity is three, and adjacent spud leg body passes through some small cross sections sizes
The connection shaping of thin-wall stainless steel round steel pipe, form a species between adjacent thin-wall stainless steel round steel pipe, spud leg body
It is similar to the latticed members of parallel chord truss system.
Further, the rectangular steel tube by the limb lipped angle assemble weldings such as four size identical thin-wall stainless steels into
Type.
Further, the round steel pipe is high-strength steel round steel pipe.
Further, between the external diameter of high-strength steel round steel pipe ribbed stiffener relative with the inside of the rectangular steel tube
Distance is consistent.
The present invention is a kind of new lattice spud leg of self-elevating ocean platform, is had the advantages that：
First, the outside of combined member is the stainless steel rectangular steel tube of built-in ribbed stiffener, and surface is straight to be easily connected with closing on component,
Stainless steel assembling rectangular steel tube is spliced by limb lipped angles such as four size identicals, significantly increases the section of component
Size, is conducive to the installation and construction of component；And each angle steel welds together along its length at crimping, weld seam is avoided
The region of stress concentration in rectangular steel tube corner, is conducive to improving the fatigue behaviour of component；And thin-wall stainless steel outside combined member
The application of angle steel has not only given full play to stainless steel material good appearance, antirust corrosion resistant, low temperature resistant and easy to maintain Optimality
Can, and the steel using amount of stainless steel material is reduced to greatest extent, save construction cost；And self-elevating ocean platform can
Mobility allows its spud leg to be repeatedly circulated, and meets energy-conserving and environment-protective requirement, reduce further cost；
Secondly, it is stainless that the built-in longitudinal stiffener being made up of each angle steel crimping welded together not only increases outside thin-walled
The resistance to overturning and local stability of steel rectangular steel tube, and internal high-strength steel round steel pipe is served as positioner
Good fixation, convenient construction；And the outside thin-walled of the inside high strength steel pipe of combined member and built-in longitudinal stiffener is not
Rust steel pipe coordinates the self-compacting concrete for surrounding the seawater confined pressure of its surrounding to fill therebetween to provide effective support so that core
Concrete is in multidimensional pressured state under cuff effect of contraction, it is to avoid or delayed the cracking of concrete, significantly improve structure
The stability bearing capacity and ductility of part；And interior core concrete of filling out coordinates outside thin-wall stainless steel effectively to completely cut off corrosive properly
The erosion of medium and low temperature environment to internal high strength steel pipe, improves component overall antirust corrosion resistant and resistance to low temperature.
In addition, relative to traditional concrete filled steel tubular member, hollow water filling interlayer thin-wall stainless steel Combined concrete structure
Part has not only given full play to steel pipe and the respective advantage of concrete, and significantly reduces the usage amount of concrete, so as to mitigate
Member dead weight, reduces earthquake load effects；Especially for offshore platform structure generally using prefabrication, overall shipment
The characteristics of scene of transporting is assembled, lighter dead load is most important to transportation safety, and traffic expense can be greatly reduced
With；Meanwhile, the water filling inside combined member in high strength steel pipe is not only able to the local buckling for preventing high strength steel pipe inside, improves core
The cuff effect of contraction of heart concrete, but also vertical and horizontal lotus can be born jointly with combined member one entirety of formation
Carry；And can play a part of absorbing seismic energy, be conducive to improving the overall anti-seismic performance of combined member.
Offshore platform structure local environment is severe, is particularly directly soaked in the ocean platform supporting member in seawater, past
Toward larger top vertical load, wind load, wave load, ice load even geological process is born, the list of sectional dimension is commonly used
The bearing capacity of individual combined member is substantially not enough.Accordingly, it is considered to which three size identicals are often pressed with the combined member of sectional dimension
Isosceles triangle is arranged, and three combined members are linked to be into one by the thin-wall stainless steel round steel pipes of some small cross sections sizes
Body, forms a kind of latticed members similar to parallel chord truss system.Relative to the steel flanged beam component of same bearer power, lattice
The deadweight of formula component is lighter, thus anti-seismic performance is more preferable；Slenderness ratio is smaller, thus longitudinal stability is more preferable；Make in lateral load
It is bigger with lower bending rigidity, thus lateral deformation is smaller；And it is smaller to the resistance of wind, wave and floating ice, thus by wind load, sea
The effect of unrestrained load and ice load is smaller.In summary, this Novel hollow water filling interlayer thin-wall stainless steel pipe concrete lattice
Formula component combines stainless steel, high-strength steel, concrete and water filling, using interlayer steel tube, concrete and water filling in stress
During interaction, given full play to the respective performance advantage of different materials, overcome again when using independent of one another not
Foot, with good appearance, antirust corrosion resistant, high capacity, ductility and stability is good, easy construction, antidetonation and resistance to low temperature it is good
Etc. series of advantages, have in offshore platform structure field especially as the spud leg of self-elevating ocean platform before wide application
Scape.
Brief description of the drawings
Accompanying drawing 1 is a kind of dimensional structure diagram of the new lattice spud leg of self-elevating ocean platform of the invention；
Accompanying drawing 2 is a kind of top view of the new lattice spud leg of self-elevating ocean platform of the invention；
Accompanying drawing 3 is a kind of spud leg body interior structural representation of the new lattice spud leg of self-elevating ocean platform of the invention；
Reference includes：1st, spud leg body, 2, thin-wall stainless steel round steel pipe, 3, stainless steel rectangular steel tube, 4, high-strength steel circle
Shape steel pipe, 5, ribbed stiffener, 6, soldered, 7, concrete.
Embodiment
In order that those skilled in the art more fully understand technical scheme, with reference to embodiment and accompanying drawing pair
Product of the present invention is described in further detail.
As shown in Figures 1 to 3, the invention discloses a kind of new lattice spud leg of self-elevating ocean platform, including triangle
The spud leg body 1 be arrangeding in parallel, the spud leg body 1 includes rectangular steel tube 3, by along length side inside the rectangular steel tube 3
Round steel pipe 4 is welded with to the ribbed stiffener 5 of setting, the inner hollow water filling of round steel pipe 4, the rectangular steel tube 3 and described
Concrete seven is filled between round steel pipe 4.The rectangular steel tube 3 is square shape, and the ribbed stiffener 5 is arranged on described square
The centre position on four sides of the inside of steel pipe 3.The ribbed stiffener 5 is to be provided with weld seam 6 between double rib parallel constructions, described pair of rib.It is described
The quantity of spud leg body 1 is three, the thin-wall stainless steel round steel pipe that adjacent spud leg body 1 passes through some small cross sections sizes
2 connection shapings, form between adjacent thin-wall stainless steel round steel pipe 2, spud leg body 1 and a kind of are similar to parallel chord truss system
Latticed members.Further, the rectangular steel tube 3 is welded by limb lipped angles such as four size identical thin-wall stainless steels
Molding assembly.The round steel pipe 4 is high-strength steel round steel pipe.The external diameter of the round steel pipe 4 is interior with the rectangular steel tube 3
Portion is consistent with respect to the distance between ribbed stiffener.
In a kind of new lattice spud leg of self-elevating ocean platform of the invention, as by corrosive properly medium influence most
It is difficult to for serious, stress least favorable and most the spud leg body of self-elevating ocean platform safeguarded, four size identicals of selection are thin
The limb lipped angle such as wall stainless steel, each crimping of different angle steel is welded together along its length, forms a kind of built-in four
The rectangular steel tube of the thin-wall stainless steel molding assembly of bar longitudinal stiffener, and ribbed stiffener is entirely located in the length of side inside rectangular steel tube
Centre position.It is smaller in view of the bearing capacity of the rectangular steel tube of thin-wall stainless steel molding assembly, the center inside rectangular steel tube
High-strength steel round steel pipe, and the outer surface of high-strength steel round steel pipe and the four of the rectangular steel tube of stainless steel molding assembly are set up in position
Longitudinal stiffener built in bar is completely attached to so that internal high-strength steel round steel pipe and outside stainless steel rectangular steel tube barycenter are complete
Full weight is closed, and fills self-compacting concrete between high-strength steel round steel pipe internally and the stainless steel rectangular steel tube of outside, is entered
One step improves the stability bearing capacity and antirust, corrosion resistant and resistance to low temperature of supporting member.In addition, it is contemplated that jack up ocean is flat
The mobility and construction characteristic of platform, in the assembling and operation process of ocean platform, it is considered in combined member inner hollow
Water filling in high-strength steel round steel pipe, be not only able to assist ocean platform pile leg in an assembling process sink to the bottom fixation, also help
Coordinate combined member collaboration resistance external loads, and when ocean platform operation finishes transfer, additionally it is possible to combined by extracting
Water filling in component inside high-strength steel round steel pipe assists pulling up for ocean platform pile leg to withdraw, and the water filling extracted can be repeatedly
Recycle, effectively saved water resource valuable on ocean platform.
The foregoing is only a preferred embodiment of the present invention, not makees any formal limitation to the present invention；It is all
One of ordinary skill in the art can swimmingly implement the present invention shown in by specification accompanying drawing with above said content；But,
All those skilled in the art without departing from the scope of the present invention, using disclosed above technology contents
And the equivalent variations for a little variation, modification and evolution made, it is the equivalent embodiment of the present invention；Meanwhile, it is all according to this hair
Variation, modification and evolution of any equivalent variations that bright substantial technological is made to above example etc., still fall within the present invention
Technical scheme protection domain within.
Claims (7)
1. a kind of new lattice spud leg of self-elevating ocean platform, including the spud leg body that triangular parallel is set, its feature exist
In：The spud leg body includes being welded with by the ribbed stiffener set along its length inside rectangular steel tube, the rectangular steel tube
Round steel pipe, the round steel pipe inner hollow water filling is filled with concrete between the rectangular steel tube and the round steel pipe.
2. the new lattice spud leg of self-elevating ocean platform according to claim 1, it is characterised in that：The rectangular steel tube
For square shape, the ribbed stiffener is arranged on the centre position on four sides inside the rectangular steel tube.
3. the new lattice spud leg of self-elevating ocean platform according to claim 2, it is characterised in that：The ribbed stiffener is
Weld seam is provided between double rib parallel constructions, described pair of rib.
4. the new lattice spud leg of self-elevating ocean platform according to claim 3, it is characterised in that：The spud leg body
Quantity is three, and adjacent spud leg body is connected by the thin-wall stainless steel round steel pipe of some small cross sections sizes to be molded,
A kind of lattice structure similar to parallel chord truss system is formed between adjacent thin-wall stainless steel round steel pipe, spud leg body
Part.
5. the new lattice spud leg of self-elevating ocean platform according to claim 1, it is characterised in that：The rectangular steel tube
It is molded by limb lipped angle assemble weldings such as four size identical thin-wall stainless steels.
6. the new lattice spud leg of self-elevating ocean platform according to claim 1, it is characterised in that：The round steel pipe
For high-strength steel round steel pipe.
7. the new lattice spud leg of self-elevating ocean platform according to claim 1, it is characterised in that：The high-strength steel circle
The distance between the external diameter of shape steel pipe ribbed stiffener relative with the inside of the rectangular steel tube is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348940.3A CN107165147A (en) | 2017-05-17 | 2017-05-17 | A kind of new lattice spud leg of self-elevating ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348940.3A CN107165147A (en) | 2017-05-17 | 2017-05-17 | A kind of new lattice spud leg of self-elevating ocean platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107165147A true CN107165147A (en) | 2017-09-15 |
Family
ID=59816492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348940.3A Pending CN107165147A (en) | 2017-05-17 | 2017-05-17 | A kind of new lattice spud leg of self-elevating ocean platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN107165147A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360486A (en) * | 2018-03-23 | 2018-08-03 | 哈尔滨工业大学深圳研究生院 | The prefabricated assembled spud leg of self-elevating ocean platform |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172923A (en) * | 1985-03-25 | 1986-10-01 | Edward Everett Horton | Jacket tower structure for use in deep water and method of installation |
| JP2005097914A (en) * | 2003-09-24 | 2005-04-14 | Nippon Steel Corp | Square steel box column |
| CN102979251A (en) * | 2012-12-27 | 2013-03-20 | 长安大学 | SCS (structure cabling system) encased structure based on PBL (planetary boundary layer) stiffening ribs |
| CN203213088U (en) * | 2013-04-17 | 2013-09-25 | 清华大学 | Light composite structure pipe support type ocean platform |
| CN104712099A (en) * | 2015-03-15 | 2015-06-17 | 北京工业大学 | Combined giant column composed of irregular-section multi-cavity steel tube with built-in concrete-filled circular steel tube, and construction method thereof |
-
2017
- 2017-05-17 CN CN201710348940.3A patent/CN107165147A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2172923A (en) * | 1985-03-25 | 1986-10-01 | Edward Everett Horton | Jacket tower structure for use in deep water and method of installation |
| JP2005097914A (en) * | 2003-09-24 | 2005-04-14 | Nippon Steel Corp | Square steel box column |
| CN102979251A (en) * | 2012-12-27 | 2013-03-20 | 长安大学 | SCS (structure cabling system) encased structure based on PBL (planetary boundary layer) stiffening ribs |
| CN203213088U (en) * | 2013-04-17 | 2013-09-25 | 清华大学 | Light composite structure pipe support type ocean platform |
| CN104712099A (en) * | 2015-03-15 | 2015-06-17 | 北京工业大学 | Combined giant column composed of irregular-section multi-cavity steel tube with built-in concrete-filled circular steel tube, and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360486A (en) * | 2018-03-23 | 2018-08-03 | 哈尔滨工业大学深圳研究生院 | The prefabricated assembled spud leg of self-elevating ocean platform |
| CN109281307A (en) * | 2018-11-10 | 2019-01-29 | 重庆大学 | A kind of offshore jacket platforms anti-seismic structure new system containing buckling restrained brace |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170915 |
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| RJ01 | Rejection of invention patent application after publication |