CN114313127B - Assembled FRP concrete combined guy cable tower type damping platform group and construction method thereof - Google Patents
Assembled FRP concrete combined guy cable tower type damping platform group and construction method thereof Download PDFInfo
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- CN114313127B CN114313127B CN202210035022.6A CN202210035022A CN114313127B CN 114313127 B CN114313127 B CN 114313127B CN 202210035022 A CN202210035022 A CN 202210035022A CN 114313127 B CN114313127 B CN 114313127B
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- 239000004567 concrete Substances 0.000 title claims abstract description 250
- 238000013016 damping Methods 0.000 title claims abstract description 80
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 239000000178 monomer Substances 0.000 claims abstract description 86
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 126
- 239000010959 steel Substances 0.000 claims description 126
- 239000010410 layer Substances 0.000 claims description 51
- 238000003466 welding Methods 0.000 claims description 23
- 239000011376 self-consolidating concrete Substances 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 13
- 230000035939 shock Effects 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 6
- 210000001503 joint Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
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- 239000010779 crude oil Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- 238000004064 recycling Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
Abstract
An assembled FRP concrete combined guy cable tower type damping platform group and a construction method thereof relate to the technical field of building equipment and comprise an FRP concrete truss damping platform, a plurality of upper module monomers, layered module connecting members, a plurality of lower module monomers and independent square foundations, wherein an upper structure and a lower structure formed by respectively combining the upper module monomers and the lower module monomers are combined to form an FRP concrete truss structure; the FRP concrete truss damping platform consists of a damping box body and an FRP concrete combined truss; the FRP concrete truss damping platform is connected with the superstructure; the lower layer structure is connected with an independent square foundation; the FRP concrete truss structure number is a plurality of, interconnect. The assembled FRP concrete combined guy cable tower type damping platform group and the construction method thereof are simple and convenient in construction, high in assembly efficiency, strong in corrosion resistance, good in energy dissipation and damping performance and capable of being recycled.
Description
Technical Field
The invention relates to the technical field of building equipment, in particular to an assembled FRP concrete combined guy cable tower type damping platform group and a construction method thereof.
Background
The guyed tower ocean platform uses a working water area of 240m to 1000m, belongs to a deepwater ocean platform, has a simple structure and relatively small component size compared with a jacket platform, and has stronger adaptability to various environmental loads. As the working application water area is mostly deep sea, the environment is worse, and the platform components have strict requirements on strength, rigidity, stability and corrosion resistance, the guyed tower ocean platform has the characteristics of high manufacturing cost, great difficulty in design, construction and installation technology and the like. Under the current large background of long-term surplus deep water drilling resources, the high manufacturing cost and construction cost make the platform not applied in a large scale.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a novel assembled FRP concrete combined guyed tower type damping platform group system which is simple and convenient to construct, high in assembly efficiency, strong in corrosion resistance, good in platform damping effect, capable of being repeatedly used and capable of simultaneously drilling crude oil of different strata and a construction method thereof.
In order to solve the problems existing in the background technology, the invention adopts the following technical scheme: the FRP concrete truss comprises an FRP concrete truss damping platform, a plurality of upper module monomers, layered module connecting members, a plurality of lower module monomers and independent square foundations, wherein the upper module monomers and the lower module monomers are assembled to form an upper layer structure and a lower layer structure of a rigid connection system through integral nodes, ring-type dampers, FRP concrete combined upright posts, FRP concrete combined diagonal braces and FRP concrete combined cross braces respectively; the FRP concrete truss damping platform consists of a damping box body and an FRP concrete combined truss, and the damping box body and the FRP concrete combined truss are connected through a lead rubber cushion layer to form a damping system; the FRP concrete truss damping platform is connected with the superstructure through stiffening ribs and column leg connectors; the lower layer structure is connected with the independent square foundation through the connecting sleeve; the number of the FRP concrete truss structures is a plurality, the FRP concrete truss structures are mutually connected through transverse energy dissipation hydraulic rods, and the FRP concrete truss damping platforms on the upper parts of the FRP concrete truss structures are connected through platform bridging.
One end of the transverse energy dissipation hydraulic rod is hinged with the FRP concrete combined cross brace of one FRP concrete truss structure to form a hinged joint, and the other end of the transverse energy dissipation hydraulic rod is hinged with the FRP concrete combined cross brace of the other FRP concrete truss structure to form another hinged joint.
The integral type node comprises a vertical half pipe, an inclined half pipe and a horizontal half pipe, wherein the top and the bottom of the vertical half pipe are respectively connected with an inner pipe through a ring-type damper, a base plate is arranged on the outer wall of the inner pipe, a high-strength bolt is arranged on the outer wall of the base plate and connected with an FRP concrete combined upright column, the inner pipe is inserted into the FRP concrete combined upright column, and a connecting lug is arranged at the end part of the FRP concrete combined upright column; the side wall of the vertical half pipe is provided with an inclined half pipe and a transverse half pipe, and the inclined half pipe and the transverse half pipe are respectively connected with an FRP concrete combined diagonal bracing and an FRP concrete combined transverse bracing.
The layered module connecting component comprises a first C-shaped sleeve, a second C-shaped sleeve and a hydraulic fixer, wherein the first C-shaped sleeve is connected with the second C-shaped sleeve through the hydraulic fixer, the upper part of the first C-shaped sleeve and the lower part of the second C-shaped sleeve are respectively connected with an inner pipe through a ring-type damper, a backing plate is arranged on the outer wall of the inner pipe, a high-strength bolt is arranged on the outer wall of the backing plate, the high-strength bolt is connected with an FRP concrete combined upright column, the inner pipe is inserted into the FRP concrete combined upright column, and a connecting lug is arranged at the end part of the FRP concrete combined upright column; an inclined half pipe and a transverse half pipe are arranged on one side wall of the C-shaped sleeve, the inclined half pipe and the transverse half pipe are respectively connected with an FRP concrete combined diagonal bracing and an FRP concrete combined cross bracing, and the inner pipe with the conical head is arranged at the bottom of the C-shaped sleeve; the second C-shaped sleeve is internally provided with a rubber cushion layer, the outer wall of the second C-shaped sleeve is provided with an inclined half pipe and a transverse half pipe, and the inclined half pipe and the transverse half pipe are respectively connected with an FRP concrete combined diagonal bracing and an FRP concrete combined cross bracing.
The lower structure-foundation connecting member comprises a connecting sleeve, wherein an FRP (fiber reinforce Plastic) inner pipe with a conical head arranged at the bottom of the lower structure is inserted into the connecting sleeve, the connecting sleeve is fixed on an independent square foundation, the independent square foundation comprises a concrete base and a steel plate foundation plate, and the steel plate foundation plate is arranged on four circles of outer walls of the concrete base.
The outer wall of the damping box body is provided with a plurality of transverse dampers which are uniformly distributed on the damping box body, and the damping box body is provided with FRP steel plates; the FRP concrete combined truss comprises a plurality of column leg connectors, platform columns and platform trusses, wherein the platform trusses are arranged on the platform columns in a staggered mode, the column leg connectors are provided with platform trusses and cross parts, the column leg connectors are connected with the FRP concrete combined columns, and stiffening ribs are arranged at the column leg connectors.
The FRP concrete combined upright post, the FRP concrete combined diagonal bracing and the FRP concrete combined cross bracing are respectively divided into three forms, wherein the first form is core concrete, steel pipes and FRP pipes sequentially from inside to outside, the second form is core concrete, steel pipes, interlayer concrete and FRP pipes sequentially from inside to outside, and the third form is steel pipes, interlayer concrete and FRP pipes sequentially from inside to outside.
The construction method of the FRP concrete combined upright post comprises the steps of wrapping a steel pipe with an outer seamless winding type FRP pipe, fixing inner pipes with the radius equal to the radius of the inner wall of the steel pipe at two ends of the steel pipe through transverse high-strength bolts, extending out of the designed length, sealing the ports of the inner pipes at the lower part of the steel pipe, arranging a pouring port at the top end of the inner pipe at the upper part of the steel pipe, pouring self-compacting concrete into the FRP steel pipe, leveling the height of the poured concrete in the FRP steel pipe with the top of the inner pipe, and welding connecting lugs at two end surfaces of the steel pipe after the concrete is formed; according to the FRP concrete combined transverse bracing construction method, firstly, a steel pipe is wrapped by an outer seamless winding type FRP pipe, then inner pipes with the radius of the transverse high-strength bolts being the radius of the inner wall of the steel pipe extend out of the designed length, the port of the inner pipe at one end of the steel pipe is sealed, the top end of the inner pipe at the other end of the steel pipe is provided with a pouring port, self-compacting concrete is poured into the FRP steel pipe, the height of the poured concrete in the FRP steel pipe is level with the top of the inner pipe, and after the concrete is formed, connecting lugs are welded at the two end surfaces of the steel pipe; according to the construction method of the integral type node, firstly, a multi-plane node is designed according to design requirements, an outer layer seamless winding type FRP pipe is used for wrapping the outer wall of the multi-plane node, embedded spaces are reserved and sealed at the ends of a vertical half pipe, a horizontal half pipe and an inclined half pipe of a single node, connecting lugs are welded at the end faces of the half pipes, and finally, self-compacting concrete is poured into pouring holes to fill the inner space of the multi-plane node.
According to the construction method of the lower structure, firstly, a factory prefabricated FRP concrete truss and an FRP concrete upright post are sleeved into a ring-type damper, and are connected and fixed through high-strength bolts to form a basic truss unit structure, and 5-6 basic truss units form layered module monomers of a truss; then welding a second C-shaped sleeve at the upper end of each set layering module single upright post, and placing a rubber gasket into the second C-shaped sleeve; c-shaped sleeves I are welded at the lower end of each set layering module single upright post, and a hydraulic fixer is installed and fixed on the side wall of each upright post through a high-strength bolt; the upper end face of a layered module single upright post of the top layer in truss layering forms a connecting lug with a bolt hole and an inner pipe with a projected design length, self-compacting concrete is poured into the inner pipe, and the height of the concrete is equal to the top of the inner pipe; forming a conical head inner pipe with a bolt hole connecting lug and a welding design length on the lower end surface of a single column of the layered module of the truss layered middle-bottom layer, and pouring self-compacting concrete into the inner pipe until the conical head inner pipe is filled; according to the superstructure construction method, firstly, a factory prefabricated FRP concrete truss and an FRP concrete upright post are sleeved into a ring-type damper, and are connected and fixed through high-strength bolts to form a truss platform structure; the bottom of the truss platform is welded with a column leg connecting port according to design requirements, a damping box body structure is formed by adopting a factory prefabricated integrated steel plate and a steel box body, a lead rubber cushion layer and a transverse damper are arranged between the damping box body and the FRP concrete combined truss, and the lead rubber cushion layer and the transverse damper are fixedly connected through high-strength bolts.
Firstly, excavating an oil extraction site to a corresponding depth, leveling, placing a template and pouring an independent square foundation, wherein a steel foundation plate with a connecting sleeve is arranged at the upper part of the foundation; after the foundation is formed, the truss layering module monomers prefabricated in the factory are arranged in sequence and transported to corresponding offshore sites; secondly, sinking a layered module monomer with the length of a middle-bottom layer of truss layering at a specified position, butting an inner pipe with a conical head at the lower end of a layered module monomer with 4 connecting sleeves of an independent square foundation, and then screwing high-strength bolts on the connecting lugs by an underwater robot; sequentially immersing the layered module monomers into water, completely butting an inner pipe with a conical head at the lower end of the upper module monomer with a C-shaped sleeve of the lower module monomer, compacting an interface through a hydraulic fixer, and screwing high-strength bolts on the connecting lugs by using an underwater robot; when the layered module monomer is assembled to the upper module monomer, a mooring rope is tied at the connection part of the mooring rope, and a mooring weight at the lower end of the mooring rope is placed at a designed position to form a fixing effect on the tower structure; and finally lifting the upper structure, butting the column leg connecting ports at the lower part of the platform with the inner pipes of the upper module units of the lower structure, connecting and welding and fixing the column leg connecting ports at the lower part of the platform through high-strength bolts on the connecting lugs, lifting the transverse energy dissipation rod pieces to corresponding positions by adopting a crane after the FRP concrete truss structure units are finished, and hinging and connecting each platform through two transverse energy dissipation damping rod pieces and mutually lapping the platform tower bridge at the upper structure of the platform.
The invention has the following advantages:
1. according to the invention, the FRP concrete structure is applied to the field of offshore platforms, so that the corrosion resistance of the platform structure is greatly improved by the FRP layer, the later maintenance cost of the components is reduced, and the service life of the structure is prolonged; the steel pipe layer restrains the deformation of the inner layer concrete, and fully plays the role of the strength of the concrete; the concrete layer in the member improves the overall rigidity of the structure and reduces the deformation of the lower truss structure under the action of underwater load.
2. Through setting up annular attenuator, the deformation performance of truss brace, stand under the effect of loading has improved, simultaneously, has improved the durability that the member used, and the structure energy dissipation shock attenuation's ability has wholly obtained the promotion.
3. The lower truss connection mode of the assembled FRP combined guy cable tower type damping platform monomer is formed by connecting the upright post and the truss by the integral node prefabricated in a factory, and the construction process of the guy cable tower type platform structure system is simplified by the mode of inner pipe nested connection and high-strength bolt connection and fixation; the connecting part resists shearing force through the inner pipe, and the high-strength bolt resists tensile force, so that the requirements of strength and deformation of the structure are met; when in offshore site construction, the lower truss structure can simply and rapidly hoist and construct layered module monomers, assemble and butt joint the layered module monomers in sequence, screw down screws by using an underwater robot, and the construction process of the sequential butt joint is simple, short in time consumption and pollution-free; when the platform needs to be disassembled, only layered module monomers need to be disassembled in sequence and transported away, and after being transferred to other destinations, the platform can be directly installed after the foundation is poured and molded, and the platform structure can be disassembled at any time and assembled at any time, so that the effects of recycling and reducing cost are achieved.
4. According to the novel damping platform, the novel damping platform is adopted, the damping box body, the truss platform and the lower truss structure are separated by the rubber cushion layer and the transverse damper, so that the vibration effect of the platform in stormy waves is reduced, and the stability of the drilling platform and the comfortableness of workers in the working process are ensured.
5. The platform group can simultaneously extract crude oil in different rock formations, so that the working efficiency and the cost are improved; the platform monomers are mutually connected by adopting energy dissipation damping rods, so that the stability of the whole drilling platform group in working is ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a shock absorbing housing + damper + of the present invention;
FIG. 2 is a schematic view of the truss deck+rubber cushion of the present invention;
FIG. 3 is a schematic top-bottom view of the truss platform of the invention;
FIG. 4 is a schematic cross-sectional view of a vibration damping platform according to the present invention;
FIG. 5 is a schematic top view of the upper module monomer of the present invention;
FIG. 6 is a schematic diagram of a layered module monomer of the present invention;
FIG. 7 is a schematic diagram of a hierarchical module connection of the present invention;
FIG. 8 is a schematic view of a substructure-foundation connection of the present invention;
FIG. 9 is a schematic diagram of a freestanding square foundation in accordance with the present invention;
FIG. 10 is a schematic view of a composite truss connection of the present invention;
FIG. 11 is a schematic view of a damper, high strength bolt shim plate, hydraulic lever of the present invention;
FIG. 12 is a schematic view of a layered module connection member of the present invention;
FIG. 13 is a schematic cross-sectional view of the FRP concrete structure of the invention;
FIG. 14 is a schematic illustration of an assembled guy cable tower shock platform monomer of the present invention;
FIG. 15 is a schematic plan view of an assembled guy cable tower shock absorbing platform cluster in accordance with the present invention.
Reference numerals illustrate: 1 lead core rubber cushion layer, 2 transverse damper, 3 FRP concrete truss damping platform, 4 stiffening rib, 5, mooring rope connecting point, 6 mooring rope, 7 FRP concrete truss structure, 8 ring type damper, 9 connecting sleeve, 10 independent square foundation, 11 mooring weight, 12 FRP steel plate, 13 damping box body, 14 steel plate, 15 FRP concrete combined truss, 16C type sleeve two, 17 layered module monomer, 18 integral node, 19 FRP concrete combined transverse strut, 20 basic truss unit, 21C type sleeve one, 22 FRP tapered head inner tube, 23 hydraulic anchor, 24 connecting ear, 25 inner tube, 11 steel plate, 17 layered module monomer, and one-piece type sleeve 26 bolt holes, 27 backing plates, 28 transverse high-strength bolts, 29 transverse energy dissipation hydraulic rods, 30 vertical half pipes, 31 FRP concrete combined upright columns, 32 oblique half pipes, 33 transverse half pipes, 34 FRP concrete combined diagonal bracing, 35 upper module monomers, 36 layered module connecting members, 37 lower module monomers, 38 steel plate foundation plates, 39 concrete bases, 40 column leg connecting ports, 41 column leg connecting parts, 42 truss upright columns, 43 platform transverse bracing, 44 FRP concrete truss platforms, 45 FRP outer layers, 46 core concrete, 47 steel pipes, 48 FRP pipes, 49 interlayer concrete, 50 platform bridging and 51 hinge joints
Detailed Description
Referring to the drawings, the present invention specifically adopts the following embodiments: the FRP concrete truss comprises an FRP concrete truss damping platform, a plurality of upper module monomers 35, layered module connecting members 36, a plurality of lower module monomers 37 and an independent square foundation 10, wherein the upper module monomers 35 and the lower module monomers 37 are respectively assembled to form an upper layer structure and a lower layer structure of a rigid connection system through integral nodes 18, ring-type dampers 8, FRP concrete combined upright posts 31, FRP concrete combined diagonal braces 34 and FRP concrete combined cross braces 19, and the upper layer structure and the lower layer structure are combined to form an FRP concrete truss structure 7; the FRP concrete truss damping platform consists of a damping box body 13 and an FRP concrete combined truss 15, and the damping box body and the FRP concrete combined truss are connected through a lead rubber cushion layer 1 to form a damping system; the FRP concrete truss damping platform is connected with the superstructure through stiffening ribs 4 and column leg connectors 40; the lower layer structure is connected with an independent square foundation 10 through a connecting sleeve 9; the number of the FRP concrete truss structures is 7, the FRP concrete truss structures are mutually connected through the transverse energy dissipation hydraulic rods 29, and the FRP concrete truss damping platforms 3 on the upper parts of the FRP concrete truss structures 7 are connected through the platform bridge 50. One end of the transverse energy dissipation hydraulic rod 29 is hinged with the FRP concrete combined cross brace 19 of one FRP concrete truss structure 7 to form a hinged joint 51, and the other end of the transverse energy dissipation hydraulic rod 29 is hinged with the FRP concrete combined cross brace 19 of the other FRP concrete truss structure 7 to form another hinged joint 51. The integral type node 18 comprises a vertical half pipe 30, an inclined half pipe 32 and a transverse half pipe 33, wherein the top and the bottom of the vertical half pipe 30 are respectively connected with an inner pipe 25 through a ring damper 8, a backing plate 27 is arranged on the outer wall of the inner pipe 25, a transverse high-strength bolt 28 is arranged on the outer wall of the backing plate 27, the transverse high-strength bolt 28 is connected with an FRP concrete combined upright 31, the inner pipe 25 is inserted into the FRP concrete combined upright 31, and a connecting lug 24 is arranged at the end part of the FRP concrete combined upright 31; the side wall of the vertical half pipe 30 is provided with an inclined half pipe 32 and a transverse half pipe 33, and the inclined half pipe 32 and the transverse half pipe 33 are respectively connected with an FRP concrete combined diagonal bracing 34 and an FRP concrete combined diagonal bracing 19. The layered module connecting member 36 comprises a first C-shaped sleeve 21, a second C-shaped sleeve 16 and a hydraulic fixer 23, wherein the first C-shaped sleeve 21 is connected with the second C-shaped sleeve 16 through the hydraulic fixer 23, the upper part of the first C-shaped sleeve 21 and the lower part of the second C-shaped sleeve 16 are respectively connected with the inner pipe 25 through the ring-type damper 8, a backing plate 27 is arranged on the outer wall of the inner pipe 25, a transverse high-strength bolt 28 is arranged on the outer wall of the backing plate 27, the transverse high-strength bolt 28 is connected with the FRP concrete combined upright 31, the inner pipe 25 is inserted into the FRP concrete combined upright 31, and the end part of the FRP concrete combined upright 31 is provided with a connecting lug 24; the side wall of the first C-shaped sleeve 21 is provided with an inclined half pipe 32 and a transverse half pipe 33, the inclined half pipe 32 and the transverse half pipe 33 are respectively connected with an FRP concrete combined diagonal bracing 34 and an FRP concrete combined cross bracing 19, and the bottom of the first C-shaped sleeve 21 is provided with an FRP inner pipe with a conical head 22; the outer wall of the second C-shaped sleeve 16 is provided with an inclined half pipe 32 and a transverse half pipe 33, and the inclined half pipe 32 and the transverse half pipe 33 are respectively connected with an FRP concrete combined diagonal brace 34 and an FRP concrete combined cross brace 19. The FRP inner pipe 22 with the conical head, which is arranged at the bottom of the lower layer structure, is inserted into the connecting sleeve 9, the connecting sleeve 9 is fixed on the independent square foundation 10, the independent square foundation 10 comprises a concrete base 39 and a steel plate foundation plate 38, and the steel plate foundation plate 38 is arranged on the outer walls of four circles of the concrete base 39. The outer wall of the damping box body 13 is provided with a plurality of transverse dampers 2, the transverse dampers 2 are uniformly distributed on the damping box body 13, and the damping box body 13 is provided with an FRP steel plate 12. The FRP concrete combined truss 15 comprises a plurality of column leg connecting ports 40, truss upright posts 42 and platform transverse struts 43, wherein the platform transverse struts 43 are arranged on the truss upright posts 42 in a staggered mode, the column leg connecting ports 40 are provided with platform transverse struts 43 at the junction positions, the column leg connecting ports 40 are connected with the FRP concrete combined upright posts 31, and stiffening ribs 4 are arranged at the column leg connecting ports 40. The FRP concrete combined upright post 31, the FRP concrete combined diagonal bracing 34 and the FRP concrete combined transverse bracing 19 are respectively divided into three forms, wherein the first form is a core concrete 46, a steel pipe 47 and an FRP pipe 48 in sequence from inside to outside, the second form is a core concrete 46, a steel pipe 47, an interlayer concrete 49 and an FRP pipe 48 in sequence from inside to outside, and the third form is a steel pipe 47, an interlayer concrete 49 and an FRP pipe 48 in sequence from inside to outside. The construction method of the FRP concrete combined column 31 comprises the steps of wrapping a steel pipe 47 by using a wound FRP pipe 48 with a seamless outer layer, fixing inner pipes with the radius of the inner wall of the steel pipe at two ends of the steel pipe through transverse high-strength bolts, extending out of the designed length, sealing the ports of the inner pipes at the lower part of the steel pipe, forming a pouring opening at the top end of the inner pipe at the upper part, pouring self-compacting concrete into the FRP steel pipe, leveling the height of the poured concrete in the FRP steel pipe with the top of the inner pipe, and welding connecting lugs at two end surfaces of the steel pipe after the concrete is formed; according to the construction method of the FRP concrete combined cross brace 19, firstly, a steel pipe 47 is wrapped by an outer seamless winding type FRP pipe 48, then two ends of the steel pipe extend out of an inner pipe with the radius of the inner wall of the steel pipe through transverse high-strength bolts, a port of the inner pipe at one end of the steel pipe is sealed, a pouring port is formed in the top end of the inner pipe at the other end of the steel pipe, self-compacting concrete is poured into the FRP steel pipe, the height of the poured concrete in the FRP steel pipe is level with the top of the inner pipe, and connecting lugs are welded at two end surfaces of the steel pipe after the concrete is formed; according to the construction method of the integral type node 18, firstly, a multi-plane node is designed according to design requirements, the outer layer seamless winding type FRP pipe is used for wrapping the outer wall of the multi-plane node, the ends of the vertical half pipe, the transverse half pipe and the inclined half pipe of the single node are reserved with embedded spaces and sealed, the end faces of the half pipes are welded with connecting lugs, and finally, self-compacting concrete is poured into pouring holes to fill the inner space of the multi-plane node. According to the construction method of the lower structure, firstly, a factory prefabricated FRP concrete truss and an FRP concrete upright post are sleeved into a ring-type damper, and are connected and fixed through high-strength bolts to form a basic truss unit structure, and 5-6 basic truss units form layered module monomers of a truss; then welding a second C-shaped sleeve at the upper end of each set layering module single upright post, and placing a rubber gasket into the second C-shaped sleeve; c-shaped sleeves I are welded at the lower end of each set layering module single upright post, and a hydraulic fixer is installed and fixed on the side wall of each upright post through a high-strength bolt; the upper end face of a layered module single upright post of the top layer in truss layering forms a connecting lug with a bolt hole and an inner pipe with a projected design length, self-compacting concrete is poured into the inner pipe, and the height of the concrete is equal to the top of the inner pipe; forming a conical head inner pipe with a bolt hole connecting lug and a welding design length on the lower end surface of a single column of the layered module of the truss layered middle-bottom layer, and pouring self-compacting concrete into the inner pipe until the conical head inner pipe is filled; according to the superstructure construction method, firstly, a factory prefabricated FRP concrete truss and an FRP concrete upright post are sleeved into a ring-type damper, and are connected and fixed through high-strength bolts to form a truss platform structure; the bottom of the truss platform is welded with a column leg connecting port according to design requirements, a damping box body structure is formed by adopting a factory prefabricated integrated steel plate and a steel box body, a lead rubber cushion layer and a transverse damper are arranged between the damping box body and the FRP concrete combined truss, and the lead rubber cushion layer and the transverse damper are fixedly connected through high-strength bolts. Firstly, excavating an oil extraction site to a corresponding depth, leveling, placing a template and pouring an independent square foundation, wherein a steel foundation plate with a connecting sleeve is arranged at the upper part of the foundation; after the foundation is formed, the truss layering module monomers prefabricated in the factory are arranged in sequence and transported to corresponding offshore sites; secondly, sinking a layered module monomer with the length of a middle-bottom layer of truss layering at a specified position, butting an inner pipe with a conical head at the lower end of a layered module monomer with 4 connecting sleeves of an independent square foundation, and then screwing high-strength bolts on the connecting lugs by an underwater robot; sequentially immersing the layered module monomers into water, completely butting an inner pipe with a conical head at the lower end of the upper module monomer with a C-shaped sleeve of the lower module monomer, compacting an interface through a hydraulic fixer, and screwing high-strength bolts on the connecting lugs by using an underwater robot; when the layered module monomer is assembled to the upper module monomer, a mooring rope 6 is tied at a mooring rope connecting point 5, and a mooring weight 11 at the lower end of the mooring rope 6 is placed at a designed position to form a fixing effect on the tower structure; and finally lifting the upper structure, butting the column leg connecting ports at the lower part of the platform with the inner pipes of the upper module units of the lower structure, connecting and welding and fixing the column leg connecting ports at the lower part of the platform through high-strength bolts on the connecting lugs, and finally lifting the transverse energy dissipation rod pieces to corresponding positions by adopting a crane after the single FRP concrete truss structure 7 is completed, wherein each platform is hinged and connected through two transverse energy dissipation damping rod pieces and mutually overlapped with the platform tower bridge at the upper structure of the platform.
The novel assembled FRP concrete combined guy cable tower type platform group is composed of a plurality of assembled FRP concrete combined guy cable tower type damping platform monomers, lower truss structures of the platform monomers are connected with each other through damping rod pieces, the platform monomers of the system are composed of prefabricated FRP concrete combined upright posts, FRP concrete combined truss supports and FRP integral multi-plane nodes, the upper structure of the assembled FRP concrete combined guy cable tower type platform monomers is a two-layer multi-row FRP concrete combined truss structure and a damping box body structure, and the lower truss structure part of the assembled FRP concrete combined guy cable tower type platform monomers is a tower structure with a square section; the FRP concrete combined upright post and the FRP concrete combined truss support are provided with connecting lugs with bolt holes, and an end extension inner pipe penetrates through the ring-type damper and then is embedded into the node half pipe and is fixedly connected through high-strength bolts; the integral multi-plane node is formed by intersecting a transverse half pipe, a vertical half pipe and an inclined half pipe, the extending end surface of the half pipe forms a connecting lug, and the connecting lug is provided with a bolt hole; the upper layer-lower layer structure is connected by truss layering module connecting members and is connected by longitudinal high-strength bolts and welded and fixed.
The FRP concrete composite structure forms in the scheme comprise and are not limited to the following modes: comprises an FRP pipe, a steel pipe and core concrete; the concrete consists of an FRP pipe, interlayer concrete, a steel pipe and core concrete; the reinforced plastic composite material consists of an FRP pipe, sandwich concrete and a steel pipe; wherein, the FRP outer layer in the FRP concrete composite structure can prevent the steel pipe and the concrete of the inner layer of the rod piece from being corroded by seawater; the steel pipe and the FRP layer have a constraint deformation effect on the concrete layer; the concrete layer plays a great role in improving the structural rigidity and strength of the rod piece.
In the scheme, the assembled FRP concrete combined guy cable tower type damping platform group is composed of three and four assembled FRP concrete combined guy cable tower type damping platform monomers, the lower parts of the platform monomers are connected through 2 transverse energy dissipation damping rod pieces, the platform structure on the upper part of the platform monomers is provided with platform tower bridge connection, and the space layout is polygonal.
The half pipe of the integral node in the scheme reserves the space for nesting the inner pipe; the half pipe extension end surface of the integral node forms a connecting lug and is provided with a bolt hole; the radius of the section of the inner pipe is the radius of the inner wall of the half pipe of the single node.
In the scheme, the FRP steel tube concrete combination column combined with the ring type damper and the FRP steel tube concrete truss combined with the ring type damper are provided with prefabricated inner tubes at the ends of the FRP steel tube concrete combination column combined with the ring type damper, the inner tubes are fixed through transverse high-strength bolts on the side walls, the radius of the inner tubes is the radius of the inner wall of the FRP steel tube concrete combination column combined with the ring type damper and the FRP steel tube concrete truss combined with the ring type damper, and the inner tubes penetrate through the ring type damper and are embedded into the single-node half tubes and are fixedly connected through the high-strength bolts.
In the scheme, the lower structure tower structure is formed by a plurality of truss layering modules, wherein 5-6 basic truss units are connected to form a layering module monomer with the height of 30 meters. The layered module monomer is easy to hoist and construct, and can be used for fast hoisting and butt-jointing and fixing the underwater structure during offshore assembly.
In the scheme, the layered module connecting component comprises a hydraulic fixer, a C-shaped sleeve 1, a C-shaped sleeve 2, a rubber gasket, an FRP concrete inner pipe with a conical head and high-strength bolts, wherein the C-shaped sleeve 1 and the C-shaped sleeve 2 are respectively welded and fixed at two ends of a stand column of an upper module and a lower module, the hydraulic fixer is installed and fixed on the side wall of the stand column of the upper module through the high-strength bolts, the bottom of the stand column extends out of the welded FRP inner pipe with the conical head, the rubber gasket is arranged at the top of the stand column of the lower module, the upper module and the lower module are connected in a nested manner through the inner pipes and compacted by the hydraulic fixer, and then are connected and fixed through the longitudinal high-strength bolts.
The platform monomer superstructure-substructure connecting part of above-mentioned scheme comprises post leg connector, stiffening rib, engaging lug, inner tube, and inner tube radius is post leg connector inner wall radius, and the stiffening rib is cross along post leg connector outer wall and distributes, and the connecting portion is nested and is fixed through vertical high strength bolted connection with the inner tube.
The platform monomer upper structure part of above-mentioned scheme comprises FRP concrete truss structure platform and shock attenuation box, and shock attenuation box platform arranges in truss platform middle part, connects through horizontal attenuator and lead core rubber pad to it is fixed through high strength bolted connection.
In the scheme, the lower structure-foundation connecting part of the platform monomer consists of an independent square foundation with a connecting sleeve and an FRP concrete inner pipe with a conical head, is connected in an inner pipe nesting mode, and is then connected and fixed through a longitudinal high-strength bolt.
The construction method of the assembled FRP concrete combined guy cable tower type damping platform group system comprises the following steps:
the construction method of the prefabricated upright post of the FRP concrete composite structure comprises the following steps: firstly, wrapping a steel pipe by using a winding type FRP pipe with a seamless outer layer, then arranging inner pipes with the radius of the inner wall of the steel pipe at two ends of the steel pipe, extending out of the designed length, and connecting and fixing the steel pipe by using a transverse high-strength bolt on the side wall of the steel pipe. Sealing the port of the inner pipe at the lower part of the steel pipe, forming a pouring port at the top end of the inner pipe at the upper part, pouring self-compacting concrete into the FRP steel pipe, leveling the poured concrete in the FRP steel pipe with the top of the inner pipe, and welding connecting lugs at the two end surfaces of the steel pipe after the concrete is formed; the construction method of the prefabricated truss of the FRP concrete combined structure comprises the steps of firstly wrapping a steel pipe by using an outer seamless winding type FRP pipe, then arranging inner pipes with the radius of the inner wall of the steel pipe at two ends of the steel pipe, extending out of the designed length, and connecting and fixing the inner pipes through transverse high-strength bolts on the side walls of the steel pipe. The port of the inner tube at one end of the steel tube is sealed, the top of the inner tube at the other end is provided with a pouring port, self-compacting concrete is poured into the FRP steel tube, the height of the poured concrete in the FRP steel tube is equal to the top of the inner tube, and after the concrete is formed, connecting lugs are welded at the two end surfaces of the steel tube.
The construction method of the prefabricated integral multi-plane node of the FRP concrete composite structure comprises the following steps: firstly, designing a multi-plane node according to design requirements, wrapping the outer wall of the multi-plane node by using an outer seamless winding FRP pipe, reserving embedded spaces at the ends of a vertical half pipe, a horizontal half pipe and an inclined half pipe of a single node, sealing, and welding connecting lugs at the end surfaces of the half pipes. And finally, pouring self-compacting concrete into the pouring holes until the inner space of the multi-plane node is filled.
The construction method of the upper structure of the assembled FRP combined guy cable tower platform monomer comprises the following steps: firstly, sleeving an FRP concrete truss support and an FRP concrete upright post prefabricated in a factory into a ring-type damper, butting an FRP integral type multi-plane node, and connecting and fixing the FRP integral type multi-plane node through high-strength bolts to form a truss platform structure, wherein a column leg connecting port is welded at the lower part of the truss platform according to design requirements; the damping box body is welded into an integrated box body by a steel plate, high-strength bolt holes are arranged at the positions where the dampers are connected, and the damping box body platform is fixedly connected with the transverse dampers, the lead rubber pads and the truss platform through the high-strength bolts to form the damping platform.
The construction method of the assembled FRP combined guy cable tower type damping platform structure system comprises the following steps: excavating an oil extraction site to a corresponding depth, leveling, placing templates, and pouring a plurality of independent square foundations, wherein a steel foundation plate with a connecting sleeve is arranged on the upper part of the foundation. After the foundation is formed, the truss layering module single bodies prefabricated in the factory are arranged in sequence and transported to corresponding places on the sea. Firstly, sinking a lower module monomer in truss layering at a specified position, butting an inner pipe with a conical head at the lower end of the lower module monomer with 4 connecting sleeves of an independent square foundation, and then screwing high-strength bolts on connecting lugs by an underwater robot; then sequentially sinking the layered module monomers into water, and screwing high-strength bolts on the connecting lugs by using an underwater robot; when the layered module is assembled to an upper module monomer, a mooring rope is tied at the connection part of the mooring rope, and a mooring weight at the lower end of the mooring rope is placed at a designed position to form a fixing effect on the tower structure; and finally, lifting the upper platform structure, butting the lower column leg connecting ports of the platform with the upper module single inner pipes of the lower truss structure, and connecting and welding and fixing the upper column leg connecting ports and the upper module single inner pipes through high-strength bolts on the connecting lugs. After the platform monomers are finished, the transverse energy dissipation rod pieces are lifted to corresponding positions by adopting a crane, and the platforms are hinged and connected through the two transverse energy dissipation damping rod pieces and are mutually overlapped with the platform tower bridge on the upper structure of the platform.
Examples
As shown in fig. 10, 11 and 13, the novel assembled FRP concrete combined guyed tower platform structure system is composed of prefabricated FRP concrete combined upright posts, FRP concrete combined truss supports and FRP integral multi-plane nodes, wherein the integral multi-plane nodes are composed of transverse half pipes, vertical half pipes and inclined half pipes which are intersected, connecting lugs are formed on the extending end surfaces, and bolt holes are formed in the connecting lugs; the FRP concrete combined upright post and the FRP concrete combined truss support are provided with connecting lugs with bolt holes, and an inner pipe extending from the end part penetrates through the ring-type damper and then is embedded into the node half pipe and is fixedly connected through high-strength bolts. As shown in fig. 7, the component nodes of the superstructure truss platform are all formed in combination in the manner described above.
The construction method in this embodiment is as follows:
the construction method of the prefabricated integral type multi-plane node comprises the steps of firstly designing the multi-plane node according to design requirements, wrapping the outer wall of the multi-plane node by using an outer seamless winding FRP pipe, reserving embedded spaces at the ends of a vertical half pipe, a horizontal half pipe and an oblique half pipe of a single node, sealing, and welding connecting lugs at the end faces of the half pipes. Finally, pouring concrete into the pouring holes to fill the inner space of the multi-plane node;
the construction method of the prefabricated upright post of the FRP concrete composite structure comprises the following steps: firstly, wrapping a steel pipe by using a wound FRP pipe with a seamless outer layer, then arranging inner pipes with the radius of the inner wall of the steel pipe at two ends of the steel pipe, extending out of the designed length, connecting and fixing the inner pipes through transverse high-strength bolts on the side wall of the steel pipe, sealing the port of the inner pipe at the lower part of the steel pipe, arranging a pouring port at the top end of the inner pipe at the upper part of the steel pipe, pouring self-compacting concrete into the FRP steel pipe, leveling the height of the poured concrete in the FRP steel pipe with the top of the inner pipe, and welding connecting lugs at two end surfaces of the steel pipe after the concrete is formed;
The construction method of the prefabricated truss support of the FRP concrete composite structure comprises the steps of wrapping a steel pipe with an outer seamless winding type FRP pipe, arranging inner pipes with the radius of the inner wall of the steel pipe at two ends of the steel pipe, extending out of the designed length, connecting and fixing the inner pipes through transverse high-strength bolts on the side walls of the steel pipe, sealing ports of the inner pipes at one end of the steel pipe, arranging pouring ports at the top ends of the inner pipes at the other end of the steel pipe, pouring self-compacting concrete into the FRP steel pipe, leveling the height of the poured concrete in the FRP steel pipe with the top of the inner pipes, and welding connecting lugs at two end surfaces of the steel pipe after the concrete is formed.
Examples
As shown in fig. 1, 2, 3, 4 and 5, the truss platform of the upper platform structure of the assembled FRP combined guyed tower type damping platform monomer structure is formed by prefabricating FRP concrete truss struts, sleeving FRP concrete upright posts into ring-type dampers, and butting FRP integral type multi-plane nodes, and connecting and fixing the truss platform by high-strength bolts to form a truss platform structure; welding a column leg connecting port at the bottom of the truss platform according to the design requirement; the upper platform structure-lower truss structure connecting part consists of column leg connecting ports, stiffening ribs, connecting lugs and inner pipes, and is connected in an inner pipe nesting mode and then connected and fixed through longitudinal high-strength bolts; the damping box body structure of the upper platform structure is formed by welding steel plates into an integrated box body, high-strength bolt holes are arranged at the positions where the dampers are connected, and the damping box body platform is fixedly connected with the transverse dampers, the lead rubber pads and the truss platform through the high-strength bolts to form the damping platform.
Examples
As shown in fig. 6, 7 and 12, the lower tower structure is formed by a plurality of truss layering modules, wherein 5-6 basic truss units are connected to form a layering module monomer with the height of 30 meters. The connecting component of lower truss structure layering module comprises hydraulic pressure fixer, C type sleeve 1, C type sleeve 2, rubber gasket, take conical FRP concrete inner tube, high strength bolt, and C type sleeve 1, C type sleeve 2 welded fastening respectively are in upper and lower truss's stand both ends, and the lateral wall of upper truss stand sets up hydraulic pressure fixer, and the FRP inner tube of bottom welding area conical head is equipped with rubber gasket at the top of lower truss stand.
The construction method in this embodiment is as follows:
firstly, sleeving an FRP concrete truss prefabricated in a factory and an FRP concrete upright post into a ring-type damper, and butting an integral multi-plane joint of the FRP, and connecting and fixing the integral multi-plane joint through high-strength bolts to form a basic truss unit, wherein 5-6 basic truss units form a truss layering module unit; and then welding a C-shaped sleeve 2 at the upper end of each set single-layer module upright post, placing a rubber gasket into the C-shaped sleeve 2, welding a C-shaped sleeve 1 at the lower end of the upright post, fixing a hydraulic fixer on the side wall of the upright post through a high-strength bolt, nesting and connecting an upper-lower-layer module single structure with an inner pipe, compacting by the hydraulic fixer, and fixing through longitudinal high-strength bolt connection.
Examples
As shown in fig. 8 and 9, the lower structure-foundation connection part is composed of an independent square foundation with a connection sleeve and an FRP concrete inner pipe with a conical head, and is connected in a nested manner by the inner pipe and is fixed by longitudinal high-strength bolt connection.
The construction method in this embodiment is as follows:
forming a connecting lug with a bolt hole and an FRP inner pipe with a conical head by welding the designed length on the lower end surface of a single upright post of a lower layer module in the lower structure layering, and then pouring concrete into the inner pipe until the inner pipe with the conical head is filled; when the underwater module works under water, after the inner pipe with the conical head at the lower end of the lower module monomer is in butt joint with the 4 connecting sleeves of the independent square foundation, the high-strength bolts on the connecting lugs are screwed up through the underwater robot.
Examples
Fig. 14 and 15 are schematic diagrams of single bodies and planar space of an assembled FRP combined guyed tower type platform group, which is composed of 3 platform single bodies.
The construction method in this embodiment is as follows:
excavating an oil extraction site to a corresponding depth, leveling, placing templates, and pouring a plurality of independent square foundations, wherein a steel foundation plate with a connecting sleeve is arranged on the upper part of the foundation. After the foundation is formed, the truss layering module single bodies prefabricated in the factory are arranged in sequence and transported to corresponding places on the sea. Firstly, sinking a lower module monomer in truss layering at a specified position, butting an inner pipe with a conical head at the lower end of the lower module monomer with 4 connecting sleeves of an independent square foundation, and then screwing high-strength bolts on connecting lugs by an underwater robot; then sequentially sinking the layered module monomers into water, and screwing high-strength bolts on the connecting lugs by using an underwater robot; when the layered module is assembled to an upper module monomer, a mooring rope is tied at the connection part of the mooring rope, and a mooring weight at the lower end of the mooring rope is placed at a designed position to form a fixing effect on the tower structure; and finally, lifting the upper platform structure, butting the lower column leg connecting ports of the platform with the upper module single inner pipes of the lower truss structure, and connecting and welding and fixing the upper column leg connecting ports and the upper module single inner pipes through high-strength bolts on the connecting lugs. After the platform monomers are finished, the transverse energy dissipation rod pieces are lifted to corresponding positions by adopting a crane, and the platforms are hinged and connected through the two transverse energy dissipation damping rod pieces and are mutually overlapped with the platform tower bridge on the upper structure of the platform.
In summary, the FRP concrete structure is applied to the field of offshore platforms, and the FRP layer greatly improves the corrosion resistance of the platform structure, reduces the later maintenance cost of components and prolongs the service life of the structure; the steel pipe layer restrains the deformation of the inner layer concrete, and fully plays the role of the strength of the concrete; the concrete layer in the member improves the overall rigidity of the structure and reduces the deformation of the lower truss structure under the action of underwater load. Through setting up annular attenuator, the deformation performance of truss brace, stand under the effect of loading has improved, simultaneously, has improved the durability that the member used, and the structure energy dissipation shock attenuation's ability has wholly obtained the promotion. The lower truss connection mode of the assembled FRP combined guy cable tower type damping platform monomer is formed by connecting the upright post and the truss by the integral node prefabricated in a factory, and the construction process of the guy cable tower type platform structure system is simplified by the mode of inner pipe nested connection and high-strength bolt connection and fixation; the connecting part resists shearing force through the inner pipe, and the high-strength bolt resists tensile force, so that the requirements of strength and deformation of the structure are met; when in offshore site construction, the lower truss structure can simply and rapidly hoist and construct layered module monomers, assemble and butt joint the layered module monomers in sequence, screw down screws by using an underwater robot, and the construction process of the sequential butt joint is simple, short in time consumption and pollution-free; when the platform needs to be disassembled, only layered module monomers need to be disassembled in sequence and transported away, and after being transferred to other destinations, the platform can be directly installed after the foundation is poured and molded, and the platform structure can be disassembled at any time and assembled at any time, so that the effects of recycling and reducing cost are achieved. According to the novel damping platform, the novel damping platform is adopted, the damping box body, the truss platform and the lower truss structure are separated by the rubber cushion layer and the transverse damper, so that the vibration effect of the platform in stormy waves is reduced, and the stability of the drilling platform and the comfortableness of workers in the working process are ensured. The platform group can simultaneously extract crude oil in different rock formations, so that the working efficiency and the cost are improved; the platform monomers are mutually connected by adopting energy dissipation damping rods, so that the stability of the whole drilling platform group in working is ensured.
Claims (7)
1. An assembled FRP concrete combination guy cable tower type damping platform group which is characterized in that: the FRP concrete truss comprises an FRP concrete truss damping platform (3), a plurality of upper module monomers (35), layered module connecting members (36), a plurality of lower module monomers (37) and an independent square foundation (10), wherein the upper structure and the lower structure of a rigid connection system are formed by assembling the upper module monomers (35) and the lower module monomers (37) through integral nodes (18), ring-type dampers (8), FRP concrete combined upright posts (31), FRP concrete combined diagonal braces (34) and FRP concrete combined cross braces (19) respectively; the FRP concrete truss damping platform consists of a damping box body (13) and an FRP concrete combined truss (15), and the damping box body and the FRP concrete combined truss are connected through a lead rubber cushion layer (1) to form a damping system; the FRP concrete truss damping platform is connected with the superstructure through stiffening ribs (4) and column leg connectors (40); the lower layer structure is connected with an independent square foundation (10) through a connecting sleeve (9); the number of the FRP concrete truss structures (7) is several, the FRP concrete truss structures are mutually connected through transverse energy dissipation hydraulic rods (29), and FRP concrete truss damping platforms (3) at the upper parts of the FRP concrete truss structures (7) are connected through platform bridging (50); the integral type node (18) comprises a vertical half pipe (30), an inclined half pipe (32) and a transverse half pipe (33), wherein the top and the bottom of the vertical half pipe (30) are respectively connected with an inner pipe (25) through a ring-type damper (8), a base plate (27) is arranged on the outer wall of the inner pipe (25), a transverse high-strength bolt (28) is arranged on the outer wall of the base plate (27), the transverse high-strength bolt (28) is connected with an FRP concrete combined column (31), the inner pipe (25) is inserted into the FRP concrete combined column (31), and a connecting lug (24) is arranged at the end part of the FRP concrete combined column (31); the side wall of the vertical half pipe (30) is provided with an inclined half pipe (32) and a transverse half pipe (33), and the inclined half pipe (32) and the transverse half pipe (33) are respectively connected with an FRP concrete combined diagonal brace (34) and an FRP concrete combined diagonal brace (19); the layered module connecting component (36) comprises a first C-shaped sleeve (21), a second C-shaped sleeve (16) and a hydraulic fixer (23), wherein the first C-shaped sleeve (21) is connected with the second C-shaped sleeve (16) through the hydraulic fixer (23), the upper part of the first C-shaped sleeve (21) and the lower part of the second C-shaped sleeve (16) are respectively connected with the inner pipe (25) through a ring-type damper (8), a backing plate (27) is arranged on the outer wall of the inner pipe (25), a transverse high-strength bolt (28) is arranged on the outer wall of the backing plate (27), the transverse high-strength bolt (28) is connected with the FRP concrete combined upright (31), the inner pipe (25) is inserted into the FRP concrete combined upright (31), and a connecting lug (24) is arranged at the end part of the FRP concrete combined upright (31); the side wall of the C-shaped sleeve I (21) is provided with an inclined half pipe (32) and a transverse half pipe (33), the inclined half pipe (32) and the transverse half pipe (33) are respectively connected with an FRP concrete combined diagonal brace (34) and an FRP concrete combined diagonal brace (19), and the bottom of the C-shaped sleeve I (21) is provided with an FRP cone head inner pipe (22); the outer wall of the C-shaped sleeve II (16) is provided with an inclined half pipe (32) and a transverse half pipe (33), and the inclined half pipe (32) and the transverse half pipe (33) are respectively connected with an FRP concrete combined diagonal bracing (34) and an FRP concrete combined diagonal bracing (19).
2. The fabricated FRP concrete composite guy cable tower shock absorbing platform cluster of claim 1, wherein: one end of the transverse energy dissipation hydraulic rod (29) is hinged with the FRP concrete combined cross brace (19) of one FRP concrete truss structure (7) to form a hinged joint (51), and the other end of the transverse energy dissipation hydraulic rod (29) is hinged with the FRP concrete combined cross brace (19) of the other FRP concrete truss structure (7) to form the other hinged joint (51).
3. The fabricated FRP concrete composite guy cable tower shock absorbing platform cluster of claim 1, wherein: FRP that the understructure bottom was equipped with takes conical head inner tube (22) insert in connecting sleeve (9), connecting sleeve (9) are fixed in on independent square basis (10), independent square basis (10) include concrete base (39) and steel sheet foundation plate (38), four outer walls of concrete base (39) are equipped with steel sheet foundation plate (38).
4. The fabricated FRP concrete composite guy cable tower shock absorbing platform cluster of claim 1, wherein: a plurality of transverse dampers (2) are arranged on the outer wall of the damping box body (13), the transverse dampers (2) are uniformly distributed on the damping box body (13), and FRP steel plates (12) are arranged on the damping box body (13); the FRP concrete combined truss (15) comprises a plurality of column leg connecting ports (40), truss columns (42) and platform cross braces (43), wherein the platform cross braces (43) are arranged on the truss columns (42) in a staggered mode, the column leg connecting ports (40) are provided with platform cross braces (43) at the junction, the column leg connecting ports (40) are connected with the FRP concrete combined column (31), and stiffening ribs (4) are arranged at the column leg connecting ports (40).
5. The fabricated FRP concrete composite guy cable tower shock absorbing platform cluster of claim 1, wherein: the FRP concrete combined upright post (31), the FRP concrete combined diagonal bracing (34) and the FRP concrete combined transverse bracing (19) are respectively divided into three forms, wherein the first form is core concrete (46), steel pipes (47) and FRP pipes (48) sequentially from inside to outside, the second form is core concrete (46), steel pipes (47), interlayer concrete (49) and FRP pipes (48) sequentially from inside to outside, and the third form is steel pipes (47), interlayer concrete (49) and FRP pipes (48) sequentially from inside to outside.
6. A method of constructing an assembled FRP concrete composite guy cable tower shock absorbing platform cluster according to claim 1, characterized by: the construction method of the FRP concrete combined column (31) comprises the steps of wrapping a steel pipe (47) by using an outer seamless winding type FRP pipe (48), fixing inner pipes with the radius equal to the radius of the inner wall of the steel pipe at two ends of the steel pipe through transverse high-strength bolts, extending out of the designed length, sealing ports of the inner pipes at the lower part of the steel pipe, arranging pouring ports at the top end of the inner pipes at the upper part, pouring self-compacting concrete into the FRP steel pipe, leveling the height of the poured concrete in the FRP steel pipe with the top of the inner pipes, and welding connecting lugs at two end surfaces of the steel pipe after the concrete is formed; according to the construction method of the FRP concrete combined cross brace (19), firstly, a steel pipe (47) is wrapped by an outer seamless winding type FRP pipe (48), then, inner pipes with the radiuses of the inner walls of the steel pipe are fixed at two ends of the steel pipe through transverse high-strength bolts, the designed length is extended, the ports of the inner pipes at one end of the steel pipe are sealed, pouring ports are formed in the top ends of the inner pipes at the other end of the steel pipe, self-compacting concrete is poured into the FRP steel pipe, the height of the concrete poured into the FRP steel pipe is equal to the top of the inner pipes, and connecting lugs are welded at two end surfaces of the steel pipe after the concrete is formed.
7. A method of constructing an assembled FRP concrete composite guy cable tower shock absorbing platform cluster according to claim 1, characterized by: firstly, excavating an oil extraction site to a corresponding depth, leveling, placing a template and pouring an independent square foundation, wherein a steel foundation plate with a connecting sleeve is arranged at the upper part of the foundation; after the foundation is formed, the truss layering module monomers prefabricated in the factory are arranged in sequence and transported to corresponding offshore sites; secondly, sinking a layered module monomer with the length of a middle-bottom layer of truss layering at a specified position, butting an inner pipe with a conical head at the lower end of a layered module monomer with 4 connecting sleeves of an independent square foundation, and then screwing high-strength bolts on the connecting lugs by an underwater robot; sequentially immersing the layered module monomers into water, completely butting an inner pipe with a conical head at the lower end of the upper module monomer with a C-shaped sleeve of the lower module monomer, compacting an interface through a hydraulic fixer, and screwing high-strength bolts on the connecting lugs by using an underwater robot; when the layered module monomer is assembled to the upper module monomer, a mooring rope (6) is tied at a mooring rope connecting point (5), and a mooring weight (11) at the lower end of the mooring rope (6) is placed at a designed position to form a fixing effect on the tower structure; and finally lifting the upper structure, butting the column leg connecting ports at the lower part of the platform with the inner pipes of the upper module units of the lower structure, connecting and welding and fixing the column leg connecting ports at the lower part of the platform through high-strength bolts on connecting lugs, and finally lifting the transverse energy dissipation rod pieces to corresponding positions by adopting a crane after the FRP concrete truss structure (7) units are finished, wherein each platform is hinged and connected through two transverse energy dissipation damping rod pieces and mutually overlapped with the platform tower bridge at the upper structure of the platform.
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| CN114313127A (en) | 2022-04-12 |
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