CN109914372A - Self-resetting offshore jacket platforms structural system based on built-in swing column - Google Patents

Self-resetting offshore jacket platforms structural system based on built-in swing column Download PDF

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Publication number
CN109914372A
CN109914372A CN201910338795.XA CN201910338795A CN109914372A CN 109914372 A CN109914372 A CN 109914372A CN 201910338795 A CN201910338795 A CN 201910338795A CN 109914372 A CN109914372 A CN 109914372A
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CN
China
Prior art keywords
swing column
double
damper
column
bar
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CN201910338795.XA
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Chinese (zh)
Inventor
张纪刚
赵迪
刘锦昆
张宗峰
刘菲菲
张君博
王胜
朱宝君
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN201910338795.XA priority Critical patent/CN109914372A/en
Publication of CN109914372A publication Critical patent/CN109914372A/en
Withdrawn legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B17/00Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/02Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto

Abstract

The invention belongs to the building structure technology field of ocean platform, it is related to the Self-resetting offshore jacket platforms structural system based on built-in swing column.The system includes ocean platform, rigid chain bar, spring, swing column, ball hinged support, tuned mass damper, metal damper.Ocean platform bottom end is fixed on ground, and swing column setting is in jacket center of inside position, hingedly on a foundation at the seabed using ball hinged support;Swing column uses novel sleeve structure system, inner prop and outer tube central filler visco-elastic damping material, and tuned mass damper is arranged in top end;Push-and-pull rod or spring connection swing column and ocean platform, are connected by metal damper outside swing column.The big displacement and large deformation of the swing column control ocean platform all directions of the system, so that stratified deformation tends to be uniform, offshore platform structure entirety stress will not occur to lead to ocean platform total collapse because local buckling is destroyed, to obtain better effectiveness in vibration suppression.

Description

Self-resetting offshore jacket platforms structural system based on built-in swing column
Technical field
The invention belongs to the building structure technology field of ocean platform, it is related to the Self-resetting conduit based on built-in swing column Frame offshore platform structure system.
Background technique
There are petroleum resources abundant in China sea area.Demand with economic construction to the energy continues to increase, marine oil and gas Exploration and development has good development prospect and huge development potentiality.Ocean platform is set as the basis of marine resources development It applies, catheter type ocean platform is the primary structure form of middle shallow sea ocean platform.It is prefabricated using stake is made across conduit leg Jacket is fixed at sea, and jacket and stake are main load-supporting parts, and other mechanical floors and workspace are then located on platform. Under the marine environment dynamic load function such as wind, wave, stream, ice and earthquake, the dynamic respons of structure are very violent.
Swing column system, which is that one kind is novel, restores vibration proof structure, i.e., it is very big a rigidity to be arranged in building side Cylinder, column bottom are connect by ball hinged support with basis, are connected with horizontal stiffness chain bar with building, swinging structure system is not Using the deformation of structure itself come the seismic energy that dissipates, but the constraint of loosening configuration system constitutes swinging member, passes through structure structure That builds waves, and malformation is made to reach unanimity, and deformation is concentrated on swing column interface, and damper is arranged at these positions Consumption.Result of study shows that swing column system can make layers stratified deformation area in uniform, effective control structure deformation It concentrates, the appearance of layer surrender mechanism can be prevented, play structure entirety antivibration and energy dissipation capacity.
Tuned mass damper (abbreviation TMD) is the passive control dress of one kind more mature in field of vibration control It sets, TMD is made of mass block, spring and damper.Its vibration frequency is adjusted to main structure frequency by mass block, is changed Mesomerism characteristic, to reach vibration damping purpose.When the main operational principle of tuned mass damper is that structure is vibrated effect, By small extra power, the rigidity or damping of semi-active control aystem are adjusted, changes the dynamic characteristics of structure, to subtract The dynamic respons of small structure.
Currently, swing column system and TMD have been respectively applied in fabric structure, it is whole that building is improved to a certain extent The antivibration and energy dissipation capacity of body.Only the weaker side of ocean platform rigidity is arranged in swing column by existing program at present, can only Control unidirectional big displacement and large deformation.
Summary of the invention
The purpose of the invention is to improve the use function of waving system at present, optimize the position of swinging member, Increase the energy dissipation capacity for system of waving, improves the anti-seismic performance of ocean platform system.It is provided by the invention to be based on built-in swing column Self-resetting offshore jacket platforms structural system, can reasonably be arranged according to actual needs connection swing column and platform company Connection device quantity and position can arbitrarily replace damaged parts after shake.
The present invention, which is that the following technical solution is employed, to be realized:
The present invention provides a kind of Self-resetting offshore jacket platforms structural system based on built-in swing column, including bottom end The ocean platform of fixed setting on a foundation at the seabed, which is characterized in that be provided with and wave between the jacket of the ocean platform Column, swing column bottom end and seafloor foundation hinged, the affixed metal damper of swing column sidewall periphery, metal damping by ball hinged support It is hingedly or affixed by several groups spring by several groups rigidity chain bar between device and jacket;Every group of rigidity chain bar or every group of bullet The plane that spring limits is each perpendicular to the central axes of swing column.
Further, the swing column includes interior steel pipe column, the outer steel pipe for being set in interior steel pipe column side wall and bottom, inside Visous damping material is filled between steel pipe column and outer steel pipe;
Along central axes to several bar steel plates are provided on the outer steel pipe outer tube wall, bar steel plate is along outer steel pipe outer tube wall Be uniformly distributed, the bar steel plate is provided with several groups bolt hole along central axes direction, every group of bolt hole be located at every group it is rigid Property chain bar or every group of spring limit plane in, swing column pass through bolt hole and the affixed metal damper of high-strength bolt;Outer steel pipe Bottom is welded with outer tube pedestal, and outer tube pedestal and ball hinged support are affixed.
Further, tuned mass damper is equipped at the top of swing column comprising mass block, damper springs, damper With fixing piece, fixing piece is fixed at the top of interior steel pipe column, is connected between mass block and fixing piece by damper springs, damper Both ends are respectively and fixedly connected with mass block and fixing piece, and damper is hung between mass block and fixing piece, and mass block bottom is equipped with smooth Wheel.
Further, the metal damper includes connecting the several groups energy consumption metal web of swing column and around swing column The octagon fixed steelring of setting, the both ends for the metal web that consumes energy are integrally formed with assembly trough plate, assembly backboard respectively, assembly The groove of cooperation bar steel plate and the bolt hole of cooperation high-strength bolt are provided on trough plate;
The octagon fixed steelring is hollow positive octagonal rod structure, and the assembly backboard of every group of energy consumption metal web end is equal It is affixed with the center of the side wall of octagon fixed steelring.
Further, the affixed spring mounted base in one end of the spring, spring mounted base and octagon fixed steelring Side wall center it is affixed, spring mounted base and energy consumption metal web assembly backboard be located at octagon fixed steelring Side on both sides fastens octagon fixed steelring;The other end of spring is affixed by affixed movable clip and jacket.
Further, the quantity of the bar steel plate is four;The quantity of every group of spring be four, each group spring on to Under successively affixed metal damper at a certain distance.
Further, the rigid chain bar both ends pass through respectively articulated joint, connector and metal damper, jacket it Between it is hinged, the articulated joint includes that center is provided with the list of circular hole and props up round and smooth double wedge, vertical single prop up round and smooth double wedge and be arranged Backboard is assembled, vertical single round and smooth double wedge of branch is integrally formed with assembly backboard, assembles the side wall of backboard and octagon fixed steelring Center is affixed, and the assembly backboard of the assembly backboard of articulated joint and the metal web that consumes energy is located at the side of octagon fixed steelring Inside and outside face, octagon fixed steelring is fastened;
The connector includes that center is provided with the hinge that the list of circular hole props up round and smooth double wedge, singly props up round and smooth double wedge setting in parallel It takes over a job dynamic formula clip, hinged movable clip internal diameter is identical with jacket outer diameter, hinged movable clip and single round and smooth double wedge of branch It is integrally formed.
Further, the rigid chain bar includes the round and smooth double wedge bar of metallic double-sided double branch and bolt, metallic double-sided double Zhi Yuan Sliding double wedge bar includes the cross bar of the single double branch double wedges for propping up round and smooth double wedge of cooperation and middle section positioned at both ends, two double branch double wedges Rectangular connecting panels are provided between cross bar;
Double branch double wedges are provided with the circular hole of a cooperation bolt, and bolt is fixed double branch double wedges respectively and hingedly connect The round and smooth double wedge of list branch of head, connector;
The rectangular connecting panels are vertically installed in the end of ipsilateral double branch double wedges, are metal between two rectangular connecting panels The cross bar of the double round and smooth double wedge bars of branch of bilateral, the side of rectangular connecting panels is greater than the cross section of cross bar.
Further, respectively there is a stiffener at the cross bar both ends of metallic double-sided double round and smooth double wedge bars of branch up and down, put more energy into The side of plate and rectangular connecting panels is affixed.
Further, the quantity of the bar steel plate is four, and the quantity of every group of rigidity chain bar is two in two, every group Rigid chain bar is mutually 90 ° of arrangements, each group rigidity chain bar successively affixed metal damper at a certain distance from top to bottom.
The present invention can also be in conjunction with other kinds of antidetonation means, such as other kinds of energy-dissipation shock-absorbing damp, such as turn Angle damper etc., to reach better anti seismic efficiency.
Swing column of the invention is not limited to use in offshore platform structure system, in the frame of field of civil engineering It can still be installed using apparatus of the present invention in structure.The Self-resetting component provided by the invention that waves can also be applied to shear wall knot Structure, frame shear wall structure, brick mix structure, steel construction, the common building structure such as steel reinforced concrete structure;Meanwhile it can be by building The overall height of object is arranged, can not also be arranged by the overall height of building, is only arranged into the several layers of building.Wave damping runback hyte The arrangement height of the specific arrangement of part and swing column can depend on the demand of owner completely.
Preferably, wave Self-resetting component should heart location arrangements between floors as far as possible, earthquake motion in any direction Under effect, additional twisting action will not be generated, makes building uniform force.
The beneficial effects of the present invention are:
(1) present invention takes full advantage of the advantages of swing column and tuned mass damper TMD, and swing column is mounted on platform Inside, flexible arrangement can reasonably select installation site, smaller on the change of original structure and influence, not influence the normal of original structure It uses, swing column is combined with frame structure, and composition waves column assembly, which can be enhanced knot compared with pure frame structure The globality of structure, it is comprehensive that vibration control is carried out to platform, make jacket-type ocean platform structure entirety stress, guarantee that ocean is flat Platform structure will not cause ocean platform to collapse because local yielding destroys, to obtain better effectiveness in vibration suppression.
(2) swing column of the invention uses sleeve combination structure, the Sandwich filling between outer sleeve and inner cylinder Visco-elastic damping material.The energy dissipation capacity of swing column can be enhanced, to reduce the acceleration of offshore platform structure, to guarantee to give birth to The comfort level of area staff living and the safe operation of electronic equipment.
(3) tuned mass damper is equipped at the top of swing column.Vibration frequency is adjusted to master using tuned mass damper Near structure frequency, change mesomerism characteristic, to reach effectiveness in vibration suppression.Structural vibration control is carried out for first natural frequency of vibration System, the facility by changing mesomerism characteristic, and can reach effectiveness in vibration suppression by parameter optimization.
(4) the energy consumption metal web of metal damper is made using the steel of mild steel or low-yield, small when occurring When type vibrates, structure relative storey displacement very little, energy dissipator gives rigidity to building, still belongs to elastic stage, guarantees that structure has Certain initial stiffness;When there is large-scale vibrating, structure relative storey displacement is larger, and sinker of the device in structure is earlier than structure Surrender, metal damper are started to work, and deform (main) and bending deformation consumption vibration by the shearing lag return of metal damper Energy, so as to effectively reduce the correlated response and damage of structure.Metal damper both ends be arranged hole and swing column and Platform both ends are bolted, and are also convenient for replacing after surrender.
(5) applying swing column, tuned mass damper, metal damper can be such that Offshore platform jacket structure integrally supports The ability of imperial external loads increases, and greatly increases and resists ice load, unrestrained load, wind load and earthquake load, or even resists sea The ability of howl also greatly enhances, and the whole of offshore platform structure will not be caused to destroy because of the destruction of local rod piece.For example, previous Bohai Sea offshore platform structure is pushed over by sea ice, exactly because jacket local failure surrender and collapse, in addition wave rod structure it After so that offshore platform structure is not generated excessive deformation because ice load is locally excessive, guarantee offshore platform structure deformation it is consistent Property and harmony, while the oil guide pipe that is also beneficial to inside ocean platform in this way will not rupture.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.
In the accompanying drawings:
Fig. 1 is one of the structural schematic diagram of 1 Self-resetting offshore jacket platforms structural system of the embodiment of the present invention;
Fig. 2 is the second structural representation of 1 Self-resetting offshore jacket platforms structural system of the embodiment of the present invention;
Fig. 3 is the third structural representation of 2 Self-resetting offshore jacket platforms structural system of the embodiment of the present invention;
Fig. 4 is the four of the structural schematic diagram of 2 Self-resetting offshore jacket platforms structural system of the embodiment of the present invention;
Fig. 5 is the Section A-A schematic diagram of Fig. 1;
Fig. 6 is the section B-B schematic diagram of Fig. 3;
Fig. 7 is the tuned mass damper structural schematic diagram of the embodiment of the present invention 1;
Fig. 8 is 1 swing column longitudinal profile structure schematic of the embodiment of the present invention;
Fig. 9 is 1 swing column structural schematic diagram of the embodiment of the present invention;
Figure 10 is the swing column and foundation bottom structure connection diagram of the embodiment of the present invention 1;
Figure 11 is the N direction view that the swing column of the embodiment of the present invention 1 is connect with foundation bottom;
Figure 12 is the swing column and rigid chain rod structure schematic diagram of the embodiment of the present invention 1;
Figure 13 is the swing column and rigidity chain bar E-E schematic cross-section of the embodiment of the present invention 1;
Figure 14 is the metal damper and articulated joint connection schematic diagram of the embodiment of the present invention 1;
Figure 15 is that the metal damper of the embodiment of the present invention 1 connect N direction view with articulated joint;
Figure 16 is the ocean platform jacket and connector connection schematic diagram of the embodiment of the present invention 1;
Figure 17 is that the ocean platform jacket of the embodiment of the present invention 1 connect N direction view with connector;
Figure 18 is the swing column and spring structure schematic diagram of the embodiment of the present invention 2;
Figure 19 is the swing column and spring E-E schematic cross-section of the embodiment of the present invention 2;
Figure 20 is the metal damper and spring connection schematic diagram of the embodiment of the present invention 2;
Figure 21 is that the metal damper of the embodiment of the present invention 2 connect N direction view with spring;
Figure 22 is the ocean platform jacket and spring connection schematic diagram of the embodiment of the present invention 2;
Figure 23 is that the ocean platform jacket of the embodiment of the present invention 2 connect N direction view with spring;
Figure 24 is the structural schematic diagram of the rigid chain bar of the embodiment of the present invention 1;
Figure 25 is the N direction view of Figure 24;
Figure 26 is the E-E schematic cross-section of Figure 25;
It is respectively marked in figure as follows: 1- jacket, 2- rigidity chain bar, 3- spring, 4- swing column, 5- seafloor foundation, 6- tuning Mass damper, 7- ball hinged support, 8- metal damper;
The round and smooth double wedge bar of metallic double-sided pair of branch of 21-, 22- bolt, 23- articulated joint, 24- circular hole, the connection of 25- rectangle Plate, 26- stiffener, 27- connector;
The round and smooth double wedge of the mono- branch of 221-, 222- circular hole, 223- assembly backboard, 224- spring mounted base, 225- are hinged The affixed movable clip of movable clip, 226- high-strength bolt, 227- shaft, 228-;
Steel pipe column, 43- visco-elastic damping material, 44- bar steel plate, 45- bolt hole in 41- outer steel pipe, 42-;
61- mass block, 62- damper springs, 63- damper, 64- fixing piece;
The seat of honour 71-, 72- stainless steel slide plate, 73- plane tetrafluoro plate, 74- core, 75- spherical surface tetrafluoro plate, 76- pedestal, 77- High-strength bolt, 78- outer tube pedestal;
81- energy consumption metal web, 82- assembly trough plate, 83- octagon fixed steelring, 84- high-strength bolt, 85- assembly back Plate.
Specific embodiment
To keep the purpose of the present invention, content and beneficial effect clearer, in conjunction with the accompanying drawings and embodiments to tool of the invention Body embodiment is described in further detail as follows.Following embodiment is only used for clearly illustrating technical side of the invention Case, and not intended to limit the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "vertical", "upper", "lower", "horizontal" Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and It is not that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore It is not considered as limiting the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ", " installation ", " connected ", " connection ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect It connects, or is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be according to specific Situation understands the concrete meaning of above-mentioned term in the present invention.
The base member of connection swing column and seafloor foundation that the following example uses is ball hinged support 7, the ball hinged support For conventional bending resistance damping shock absorption vibration isolation ball hinged support, including the seat of honour 71, stainless steel slide plate 72, plane tetrafluoro plate 73, core 74, ball Face tetrafluoro plate 75, pedestal 76 and high-strength bolt 77 form.
Embodiment 1
As shown in Figure 1, Figure 2, shown in Fig. 5-17, Figure 24-26, the present invention provides a kind of Self-resetting conduit based on built-in swing column Frame offshore platform structure system is fixed at the ocean platform in seafloor foundation 5, the jacket 1 of ocean platform including bottom end Between be provided with swing column 4, swing column is assembled using composite structure, including interior steel pipe column 42, is set in interior steel tube column side The outer steel pipe 41 of wall and bottom, interior steel pipe column diameter is more smaller than outer steel pipe internal diameter, the gap between interior steel pipe column and outer steel pipe In be filled with visous damping material 43, with reduce wave rod structure horizontal external effect under dynamic response.
Four bar steel plates 44 are welded with along swing column central axes direction on outer steel pipe outer tube wall, bar steel plate is along outer steel pipe Outer tube wall is uniformly distributed, and the bar steel plate is provided with several groups bolt hole 45 along central axes direction, and every group of bolt hole distinguishes position In in the plane that every group of rigidity chain bar or every group of spring limit, swing column is damped by bolt hole and the affixed metal of high-strength bolt 84 Device 8, it is hinged by several groups rigidity chain bar 2 between metal damper and jacket.
Outer steel pipe bottom is welded with rectangular outer tube pedestal 78, and the seat of honour of outer tube pedestal and ball hinged support passes through high-strength bolt 77 It is affixed.The moment of flexure for waving column bottom all directions can be released, and swing column itself will not be by curved destruction, to basic bending resistance Bearing capacity demand reduces.
At the top of swing column tuned mass damper 6 can be installed according to the actual situation, further increase the consumption for waving rod structure It can ability.Tuned mass damper includes mass block 61, damper springs 62, damper 63 and fixing piece 64, fixing piece welding At the top of interior steel pipe column, connected between mass block and fixing piece by damper springs, damper both ends are respectively and fixedly connected with mass block With fixing piece, damper is hung between mass block and fixing piece, and mass block bottom is equipped with smooth wheel, can be along capital table Face is mobile.
The affixed metal damper of bar steel plate, metal damper include the several groups energy consumption metal web 81 for connecting swing column With around swing column setting octagon fixed steelring 83, consume energy metal web both ends respectively with assembly trough plate 82, assembly Backboard 85 is integrally formed, and assembles the bolt hole of the groove that cooperation bar steel plate is provided on trough plate and cooperation high-strength bolt.Consumption Energy metal web assembling closely waves styletable on four bar steel plates of swing column, passes through high-strength bolt by assembling trough plate It is clipped on bar steel plate, octagon fixed steelring is distally connected using assembly backboard.
Octagon fixed steelring is hollow positive octagonal rod structure, and the assembly backboard of every group of energy consumption metal web end is with eight The center of the side wall of side shape fixed steelring is affixed.
It is hinged by several groups rigidity chain bar 2 between metal damper and the jacket of ocean platform, pass through assembly connection Part facilitates the connection for realizing swing column and jacket structure.Every group of rigidity chain bar is mutually perpendicular two rigid chain bars, from upper It falls down and is sequentially connected metal damper at a certain distance.
Rigid chain bar both ends pass through hinged between articulated joint 23, connector 27 and metal damper, jacket, institute respectively Stating articulated joint includes that center is provided with the assembly that the list of circular hole 222 props up round and smooth double wedge 221, vertically singly props up round and smooth double wedge setting Backboard 223, vertical single round and smooth double wedge of branch is integrally formed with assembly backboard, in the side wall for assembling backboard and octagon fixed steelring The heart is affixed, and the assembly backboard of the assembly backboard of articulated joint and the metal web that consumes energy is located at the side of octagon fixed steelring Inside and outside, fasten octagon fixed steelring.
Connector includes that center is provided with the hinged work that the list of circular hole props up round and smooth double wedge, singly props up round and smooth double wedge setting in parallel Dynamic formula clip 225, hinged movable clip are set on jacket by the folding of shaft 227, then solid by high-strength bolt 226 Fixed, hinged movable clip and single round and smooth double wedge of branch are integrally formed.
Rigid chain bar includes the round and smooth double wedge bar 21 of metallic double-sided double branch and bolt 22, metallic double-sided double round and smooth double wedge bar packets of branch The cross bar for including the single double branch double wedges for propping up round and smooth double wedge of cooperation and middle section positioned at both ends, between two double branch double wedges and cross bar It is provided with rectangular connecting panels 25.
Double branch double wedges are provided with the circular hole 24 of a cooperation bolt, round and smooth convex with the list branch of articulated joint, connector Tooth just build-in coincide, and bore hole size is identical, has the freedom degree relatively rotated after insertion bolt is fixed in circular hole.
Rectangular connecting panels are vertically installed in the end of ipsilateral double branch double wedges, are metallic double-sided between two rectangular connecting panels The cross bar of double round and smooth double wedge bars of branch, the side of rectangular connecting panels are greater than the cross section of cross bar.Metallic double-sided double round and smooth double wedge bars of branch Cross bar both ends respectively have a stiffener 26 up and down, the side of stiffener and rectangular connecting panels is affixed, increases rectangular connecting panels Intensity.
The mounting means of the present embodiment structural system is in accordance with the following steps:
Step 1: swing column is connected to seafloor foundation.
While ocean platform integral construction is set up, ball hinged support is buried on the basis of four jacket centers, Ball hinged support is anchored on the pedestal of seabed, and swing column outer steel pipe bottom is connected by screw bolts on the seat of honour of ball hinged support, then is led to Flexural pivot is crossed to be hinged on the pedestal of seabed.Swing column upper end is fixed temporarily spare.
Step 2: assembling connecting piece.
On four bar steel plates for waving column outer wall, the bolt hole of certain height is selected, successively assembly is golden from top to bottom Belong to damper, octagon fixed steelring is assembled in metal damper end, so as to flexible choice connecting rod and the installation site of spring. Metal damper is assembled according to certain distance, octagon fixed steelring is assembled in metal damper end.
Step 3: connection swing column and jacket.
Assemble articulated joint, corresponding installation connection on the jacket structure of ocean platform in octagon fixed steelring outer surface Head.Double branch double wedges of rigid chain bar and single round and smooth double wedge of branch are connected, bolt is fixed across circular hole.Every layer of installation requirement Rigid chain bar will be maintained in same level, can be realized swing column with respect to offshore platform structure system in set angle range Interior swing.
Step 4: tuned mass damper is mounted at the top of swing column.
Rigid chain bar between swing column and ocean platform has the effectiveness in vibration suppression of ocean platform bigger influence.Into After Numerical Simulation Analysis under row geological process and ice load, the results showed that, the rigidity and quantity of connecting rod are to ocean platform The displacement and acceleration response of structure have larger impact, when it reaches a certain value or when in particular range, shakes to ocean platform Dynamic control effect is the most obvious.
Comprehensive seismic wave, pressure ice Load Simulation as a result, practical engineering calculation is answered to go out rigid chain bar ideal rigid degree appropriate, Allow to have small-scale float up and down.Rigid chain bar rigidity is excessive or too small, leads to the association between swing column and platform structure Deformability decline is adjusted, energy dissipation capacity weakens, so that stature dynamic-load response increases.Rigid chain bar rigidity will also be imitated from economy is considered Benefit and effectiveness in vibration suppression comprehensively consider, and rigidity is excessive certainly will to will cause waste.As rigid chain bar increases, relative storey displacement tends to be equal It is even, preferable effectiveness in vibration suppression can achieve for the node of different height;But it after rigid chain bar is more than certain amount, waves Cylinder system is perfect, and extra connecting rod cannot play the role of certain energy consumption.
Embodiment 2
The Self-resetting offshore jacket platforms structure of the invention based on built-in swing column as shown in Fig. 3,4 and Figure 18-23 System, the difference from embodiment 1 is that, it is affixed by several groups spring between metal damper and jacket.
In the side wall of one end welding spring mounted base 224 of spring, spring mounted base and octagon fixed steelring The heart is affixed, and the assembly backboard of spring mounted base and energy consumption metal web is located at the side on both sides of octagon fixed steelring, Fasten octagon fixed steelring;The other end of spring welds affixed movable clip 228, with affixed with jacket.Every group of spring Quantity be four, the arrangement in 90 ° mutually of four springs, the successively affixed metal damping at a certain distance from top to bottom of each group spring Device.
Compared with Example 1, in technical solution described in this example, resilient support is commonly used in Flexible Equipment deficiency situation.? Entirely waving in rod structure, spring first bears external force load, with the increase of camber of spring, the more denaturation energy of spring deposit, The effective flexibility for increasing equipment, compensator or trimmer pressure.In order to make the rigidity of structure be fully used, reach balanced power effect, This example has been respectively mounted spring supporting on 4 directions.One lateral spring bears tensile stress, bears compression to lateral spring, plays Quan Fang The effect of position three dimensional elasticity support.
Offshore jacket platforms structural system and its installation method of the present invention based on built-in swing column, it is entire to make Process is all simple assembly, construction is completed in the case where not influencing building use, therefore present invention construction is more convenient; Swing column of the present invention is cylinder, reasonable plant-site selection flexible arrangement, the function of neither influence ocean platform can be made inside ocean platform With, and do not affect the appearance, therefore present invention arrangement is more flexible;The present invention can select to wave according to the actual demand of ocean platform The height of column and the quantity of attachment device and position etc., and can only replacement damaged parts, therefore this hair after component is impaired It is bright relatively inexpensive reasonable;The present invention installs tuned mass damper, metal damper additional, and energy dissipation capacity is strong, can be substantially reduced building The seismic response of object, while the present invention has recoverable function, therefore the present invention has good energy-dissipating property and restorability Energy.
Used combined string mechanics performance is good, big rigidity required for swinging structure can be provided, in ocean platform When by seismic force effects, swing column can be swung around column bottom all directions, and ocean platform can be made only to vibrate by first vibration mode, be limited Its relative storey displacement keeps the story drift of each layer consistent, can prevent ocean platform collapsing under earthquake load well.
Used tuned mass damper can provide damping and elasticity required for system of waving, when swing column is on ground When being subjected to displacement under shake load action, can dissipate seismic energy well, reduce destruction of the geological process to ocean platform, separately Outer its also has the characteristics that simple structure simple installation, economical rationality.
Used metal damper both ends setting hole is bolted with swing column and platform both ends, after surrender It is conveniently replaceable.
Used rigidity chain bar, assembled connector, the components such as base connection also have simple structure, rationally easily With, economical rationality, simple installation the features such as.
Certainly, these are only the preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of Self-resetting offshore jacket platforms structural system based on built-in swing column, including bottom end are fixed at seabed Ocean platform on basic (5), which is characterized in that be provided with swing column (4) between the jacket (1) of the ocean platform, shake It puts column (4) bottom end and seafloor foundation (5) passes through ball hinged support (7) hingedly, the affixed metal damper of swing column (4) sidewall periphery (8), pass through several groups rigidity chain bar (2) between metal damper (8) and jacket (1) hingedly or pass through several groups spring (3) It is affixed;The plane that every group of rigidity chain bar (2) or every group of spring (3) limit is each perpendicular to the central axes of swing column (4).
2. the Self-resetting offshore jacket platforms structural system according to claim 1 based on built-in swing column, feature It is, the swing column (4) includes interior steel pipe column (42), the outer steel pipe (41) for being set in interior steel pipe column (42) side wall and bottom, Visous damping material (43) are filled between interior steel pipe column (42) and outer steel pipe (41);
It is provided with several bar steel plates (44) on outer steel pipe (41) outer tube wall along central axes direction, bar steel plate (44) is along outer Steel pipe (41) outer tube wall is uniformly distributed, and the bar steel plate (44) is provided with several groups bolt hole (45) along central axes direction, often Group bolt hole (45) is located in the plane that every group of rigidity chain bar (2) or every group of spring (3) limit, and swing column (4) passes through spiral shell Keyhole (45) and high-strength bolt (84) affixed metal damper (8);Outer steel pipe (41) bottom is welded with outer tube pedestal (78), outer tube bottom Seat (78) and ball hinged support (7) are affixed.
3. the Self-resetting offshore jacket platforms structural system according to claim 2 based on built-in swing column, feature Be, be equipped with tuned mass damper (6) at the top of the swing column (4) comprising mass block (61), damper springs (62), Damper (63) and fixing piece (64), fixing piece (64) are fixed at the top of interior steel pipe column (42), mass block (61) and fixing piece (64) it being connected between by damper springs (62), damper (63) both ends are respectively and fixedly connected with mass block (61) and fixing piece (64), Damper (63) is hung between mass block (61) and fixing piece (64), and mass block (61) bottom is equipped with smooth wheel.
4. the Self-resetting offshore jacket platforms structure system according to claim 1-3 based on built-in swing column System, which is characterized in that the metal damper (8) includes several groups energy consumption metal web (81) of connection swing column (4) and encloses Around swing column (4) setting octagon fixed steelring (83), consume energy metal web (81) both ends respectively with assembly trough plate (82), assembly backboard (85) is integrally formed, and groove and the cooperation of cooperation bar steel plate (44) are provided in assembly trough plate (82) The bolt hole of high-strength bolt (84);
The octagon fixed steelring (83) is hollow positive octagonal rod structure, the assembly back of every group of energy consumption metal web (81) end Plate (85) is affixed with the center of the side wall of octagon fixed steelring (83).
5. the Self-resetting offshore jacket platforms structural system according to claim 4 based on built-in swing column, feature It is, the affixed spring mounted base (224) in one end of the spring (3), spring mounted base (224) and octagon fixed steelring (83) center of side wall is affixed, assembly backboard (85) the difference position of spring mounted base (224) and energy consumption metal web (81) Side on both sides in octagon fixed steelring (83) fastens octagon fixed steelring (83);The other end of spring (3) passes through affixed Movable clip (228) and jacket (1) are affixed.
6. the Self-resetting offshore jacket platforms structural system according to claim 5 based on built-in swing column, feature It is, the quantity of the bar steel plate (44) is four;The quantity of every group of spring (3) is four, and each group spring (3) is from top to bottom Successively affixed metal damper (8) at a certain distance.
7. the Self-resetting offshore jacket platforms structural system according to claim 4 based on built-in swing column, feature It is, described rigidity chain bar (2) both ends pass through articulated joint (23), connector (27) and metal damper (8), jacket respectively (1) hinged between, the articulated joint (23) includes that center is provided with the list of circular hole (222) and props up round and smooth double wedge (221), vertical Single assembly backboard (223) for propping up round and smooth double wedge (221) setting, vertical list prop up round and smooth double wedge (221) and assembly backboard (223) one Molding, the center for assembling the side wall of backboard (223) and octagon fixed steelring (83) is affixed, the assembly backboard of articulated joint (23) (223) it is located at two inside and outside the side of octagon fixed steelring (83) with the assembly backboard (85) of energy consumption metal web (81) Side fastens octagon fixed steelring (83);
The connector (27) includes that center is provided with the list of circular hole (222) to prop up round and smooth double wedge (221), parallel single branch round and smooth convex The hinged movable clip (225) of tooth (221) setting, hinged movable clip (225) internal diameter is identical as jacket (1) outer diameter, Hinged movable clip (225) and single round and smooth double wedge (221) of branch are integrally formed.
8. the Self-resetting offshore jacket platforms structural system according to claim 7 based on built-in swing column, feature It is, the rigidity chain bar (2) includes the round and smooth double wedge bar (21) of metallic double-sided double branch and bolt (22), and metallic double-sided double branch are round and smooth Double wedge bar (21) includes that the cooperation list positioned at both ends props up double branch double wedges of round and smooth double wedge (221) and the cross bar in middle section, and two double Rectangular connecting panels (25) are provided between branch double wedge and cross bar;
Double branch double wedges are provided with the circular hole (24) of cooperation bolt (22), and bolt (22) fixes double branch double wedges respectively Round and smooth double wedge (221) is propped up with the list of articulated joint (23), connector (27);
The rectangular connecting panels (25) are vertically installed in the end of ipsilateral double branch double wedges, are between two rectangular connecting panels (25) The cross bar of metallic double-sided double round and smooth double wedge bars (21) of branch, the side of rectangular connecting panels (25) is greater than the cross section of cross bar.
9. according to the described in any item Self-resetting offshore jacket platforms structural systems based on built-in swing column of claim 8, It is characterized in that, respectively there is a stiffener (26) at the cross bar both ends of metallic double-sided double round and smooth double wedge bars (21) of branch up and down, add Strength plate (26) and the side of rectangular connecting panels (25) are affixed.
10. according to the described in any item Self-resetting offshore jacket platforms structure systems based on built-in swing column of claim 7-9 System, which is characterized in that the quantity of the bar steel plate (44) is four, and the quantity of every group of rigidity chain bar (2) is in two, every group Two rigid chain bar (2) mutually arrangements in 90 °, each group rigidity chain bar (2) successively affixed metal damping at a certain distance from top to bottom Device (8).
CN201910338795.XA 2019-04-25 2019-04-25 Self-resetting offshore jacket platforms structural system based on built-in swing column Withdrawn CN109914372A (en)

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JP2021502838A JP7065465B2 (en) 2019-04-25 2020-02-19 Maritime platform structural system with self-returning pipe jacket based on built-in swing post
PCT/CN2020/075804 WO2020215863A1 (en) 2019-04-25 2020-02-19 Self-resetting jacket ocean platform structure system based on built-in swing column

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110805156A (en) * 2019-11-22 2020-02-18 山东彤创建筑科技有限公司 Elastic swinging column with replaceable bending damper
WO2020215863A1 (en) * 2019-04-25 2020-10-29 青岛理工大学 Self-resetting jacket ocean platform structure system based on built-in swing column
CN113106999A (en) * 2021-03-21 2021-07-13 北京工业大学 Offshore wind power jacket structure with additional viscous damper
CN113465966A (en) * 2021-06-16 2021-10-01 天津大学 Concrete column type swing test device of offshore high-rise tower

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1585458A1 (en) * 1988-09-07 1990-08-15 Бакинский Завод Глубоководных Оснований Arrangement for mounting the support block of offshore platform
JPH102129A (en) * 1996-06-13 1998-01-06 Suzuki Sogyo Co Ltd Three-dimensional vibration isolation parts
BE1019907A4 (en) * 2011-04-18 2013-02-05 Geosea N V AVAILABLE OFFSHORE PLATFORM AND METHOD FOR SUPPRESSING LATERAL OSCILLATING MOVEMENTS.
CN103132597A (en) * 2011-11-30 2013-06-05 青岛理工大学 Swing wall structural system and ocean platform which adopts system
CN203755279U (en) * 2014-03-11 2014-08-06 青岛理工大学 Self-resetting ocean platform based on tuned mass damper and swing wall
CN105220891A (en) * 2015-09-21 2016-01-06 华东交通大学 A kind of reinforced concrete frame seismic reinforcing structure and Shockproof reinforcing method thereof
JP6792240B2 (en) * 2016-11-07 2020-11-25 日本製鉄株式会社 Scuttling prevention device for steel pipe piles, scuttling prevention structure and scuttling prevention method
CN109914372A (en) * 2019-04-25 2019-06-21 青岛理工大学 Self-resetting offshore jacket platforms structural system based on built-in swing column
CN210140820U (en) * 2019-04-25 2020-03-13 青岛理工大学 Self-resetting jacket ocean platform structure system based on built-in swinging column

Cited By (5)

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WO2020215863A1 (en) * 2019-04-25 2020-10-29 青岛理工大学 Self-resetting jacket ocean platform structure system based on built-in swing column
CN110805156A (en) * 2019-11-22 2020-02-18 山东彤创建筑科技有限公司 Elastic swinging column with replaceable bending damper
CN113106999A (en) * 2021-03-21 2021-07-13 北京工业大学 Offshore wind power jacket structure with additional viscous damper
CN113465966A (en) * 2021-06-16 2021-10-01 天津大学 Concrete column type swing test device of offshore high-rise tower
CN113465966B (en) * 2021-06-16 2022-06-07 天津大学 Concrete column type swing test device of offshore high-rise tower

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