Fabricated composite wall of ocean platform superstructure

Abstract

The fabricated composite wall of the ocean platform superstructure comprises double-pipe interlayer hollow stand columns located on the two sides in the first direction at intervals, each double-pipe interlayer hollow stand column is provided with a stand column outer pipe, a stand column inner pipe and a filling layer, the stand column inner pipe is sleeved with the stand column outer pipe, and the space between the stand column outer pipe and the stand column inner pipe is filled with the filling layer; the first connecting plate is fixedly arranged on the side wall of the stand column inner pipe and penetrates out of the stand column outer pipe; the two ends, in the first direction, of the corrugated plate are detachably connected with the first connecting plates correspondingly, the corrugated plate comprises a plurality of crest parts and trough parts which are sequentially connected in the first direction, and inner filling layers are arranged in the crest parts; the two sides of the first direction of the upper fixing part and the two sides of the first direction of the lower fixing part are connected to the stand column inner pipes on the two sides respectively, and the two ends of the second direction of the corrugated plate are detachably connected to the upper fixing part and the lower fixing part respectively. The problems that in the prior art, an upper structure is large in overall steel amount and large in weight are solved.

Description

Technical Field

[0001] The present application relates to the technical field of marine new energy structural engineering, and more specifically, to an assembled composite wall of an upper structure of an offshore platform. Background Art

[0002] The superstructure of the offshore platform includes: offshore new energy booster station, oil and gas extraction equipment cabin, living building, etc. The superstructure of the offshore platform is a key part of marine infrastructure. The superstructure of the offshore platform usually needs to meet multiple functional and safety requirements, such as: windproof, fireproof, corrosion-resistant, heat-insulated, soundproof, etc. At present, the steel frame superstructure is the most widely used, but it cannot meet all the above requirements well, and there are prominent problems such as too much dead weight, difficult anti-corrosion maintenance, and too much steel consumption, which cannot adapt to the development trend of marine resource exploitation.

[0003] The walls of the existing offshore platform superstructures are mainly made of steel frames, which require a large number of diagonal braces to increase lateral force resistance. At the same time, additional steel plate walls need to be installed as enclosing components. The overall steel consumption is large and the weight is heavy.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0005] The purpose of the present application is to provide an assembled combined wall of an offshore platform superstructure, which solves the problem of large overall steel volume and heavy weight of the offshore platform superstructure in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is: The present application provides an assembled composite wall of an offshore platform superstructure, comprising: Double-tube sandwich hollow columns are arranged at intervals on both sides of the first direction, and the double-tube sandwich hollow columns have a column outer tube, a column inner tube and a filling layer, the column outer tube is sleeved on the outside of the column inner tube, and the filling layer is filled between the column outer tube and the column inner tube; A first connecting plate, which is fixedly arranged on the side wall of the inner tube of the column and passes through the outer tube of the column; A corrugated plate, wherein two ends of the corrugated plate in a first direction are respectively detachably connected to the first connecting plate, the corrugated plate comprises a plurality of crests and troughs sequentially connected along the first direction, and an inner filling layer is arranged in the crest; The upper fixing part and the lower fixing part, both sides of the first direction of the upper fixing part and both sides of the first direction of the lower fixing part are respectively connected to the inner tubes of the columns on both sides, and the two ends of the second direction of the corrugated plate are respectively detachably connected to the upper fixing part and the lower fixing part, wherein the second direction is perpendicular to the first direction.

[0007] Optionally, the inner tube of the column is a corrugated inner steel tube, a slot is provided on the outer tube of the column, and the first connecting plate passes through the slot and is fixedly connected to the outer wall of the inner tube of the column.

[0008] Optionally, the column outer tube comprises a fiber composite outer tube, and the filling layer is a concrete interlayer; The inner tube of the column is a hollow tube, and the hollow ratio of the inner tube to the volume of the entire double-tube sandwich hollow column is greater than 80%.

[0009] Optionally, the corrugated sheet member comprises two corrugated steel sheets; The wave crests of the two corrugated steel plates face each other and enclose a closed inner cavity area, the closed inner cavity area is filled with an inner filling layer, the wave troughs of the two corrugated steel plates abut against each other to form a trough portion, and the trough portion located between two adjacent wave crest portions is fixedly connected by a first fastener.

[0010] Optionally, the inner filling layer comprises foamed aluminum; A galvanized layer is provided on the outer surfaces of the two corrugated steel plates.

[0011] Optionally, the trough portions located at the two side edges of the corrugated plate in the first direction are fixedly connected to the first connecting plate by second fasteners.

[0012] Optionally, the upper fixing part and the lower fixing part both include: fixing beams respectively connected to the inner tubes of the columns on both sides; A main crossbeam, two ends of the main crossbeam in a first direction are detachably connected to the fixed beams on both sides; A second connecting plate, the second connecting plate is fixedly connected to the main crossbeam; The second connecting plates at both ends are detachably connected to the two ends of the corrugated plate member in the second direction.

[0013] Optionally, the fixed beam comprises: a connecting steel beam, one end of which is fixed to the outer wall of the inner tube of the column and the other end of which extends out of the outer tube of the column; A stiffening rib, one side of which is fixed on the outer wall of the inner tube of the column, and the other side of which is fixed on the connecting steel beam, and the stiffening rib is wrapped by a filling layer.

[0014] Optionally, the connecting steel beam and the main cross beam are fixedly connected via a third connecting plate.

[0015] Optionally, two ends of the corrugated plate in the second direction are respectively fixed with T-shaped plates, and the T-shaped plates are connected to the second connecting plate through a third fastener.

[0016] The beneficial effect of the assembled composite wall of the upper structure of an offshore platform provided by the present application is at least that: the upper structure of the offshore platform can be assembled into a modular structure by forming a double-tube sandwich hollow column, a corrugated plate, an upper fixing part and a lower fixing part, and then assembled into a modular structure, which has the advantage of a high degree of assembly. In addition, the reasonable design of the structure of the double-tube sandwich hollow column, the double-arm hollow column with a large hollow ratio in the middle and the structural form of the corrugated plate have greatly reduced the overall weight of the composite wall. In addition, it has a high lateral resistance, which greatly facilitates maintenance and replacement, and can improve the structural strength and durability while reducing its own weight. It also has the ability of explosion-proof, fire-proof and corrosion-resistant, and has broad application prospects in the engineering technology of the upper structure of offshore platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of an assembled combined wall of an offshore platform superstructure provided in an embodiment of the present application; Figure 2 A cross-sectional view of an assembled composite wall of an offshore platform superstructure provided in an embodiment of the present application; Figure 3 A cross-sectional view of a double-tube sandwich hollow column of an assembled composite wall of an offshore platform superstructure provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of the inner tube of a column of a prefabricated composite wall of an upper structure of an offshore platform provided in an embodiment of the present application; Figure 5 A front view of a corrugated plate member of a prefabricated composite wall of an offshore platform superstructure provided in an embodiment of the present application; Figure 6 A left view of a corrugated plate member of a prefabricated composite wall of an offshore platform superstructure provided in an embodiment of the present application; Figure 7 A cross-sectional view of a second distribution form of the crest portion of an assembled composite wall of an offshore platform superstructure provided in an embodiment of the present application.

[0019] Among them, the reference numerals in the figure are: 100, double-tube sandwich hollow column; 110, column outer tube; 111, fiber composite outer tube; 120, column inner tube; 121, corrugated inner steel tube; 130, filling layer; 200, first connecting plate; 220, second fastener; 300, corrugated plate; 310, wave crest; 320, wave trough; 321, first reserved bolt hole; 330, inner filling layer; 340, first fastener; 350, second reserved bolt hole; 360, T-shaped plate; 361, fourth reserved bolt hole; 400, upper fixing part; 410, fixed beam; 411, connecting steel beam; 412, stiffening rib; 413, third reserved bolt hole; 420, main beam; 430, second connecting plate; 440, third connecting plate; 500, lower fixing part. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that the leading line with an arrow in the annotation indicates a non-physical area such as a hole or slot, or a non-specific physical feature such as a superordinate feature, or a specific direction. The leading line without an arrow in the annotation indicates a physical feature or a specific subordinate specific feature.

[0022] When a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and are not to be construed as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0023] like Figure 1 As shown, this embodiment proposes an assembled composite wall of the upper structure of an offshore platform. For the convenience of structural description, the assembled composite wall is set vertically as an example for structural description. The left-right direction is the first direction, and the up-down direction is the second direction. The components in the assembled composite wall of this embodiment are described in this direction as an example. Figure 1 , Figure 2 , Figure 3As shown, the assembled composite wall mainly includes: a double-tube sandwich hollow column 100, a first connecting plate 200, a corrugated plate 300, an upper fixing part 400 and a lower fixing part 500. At least two double-tube sandwich hollow columns 100 are provided, and the two double-tube sandwich hollow columns 100 are arranged at a predetermined length on both sides of the first direction (left and right direction), and the space between the two double-tube sandwich hollow columns 100 is a wall space. Each double-tube sandwich hollow column 100 has a column outer tube 110, a column inner tube 120 and a filling layer 130. The column outer tube 110 is sleeved on the outside of the column inner tube 120, and the filling layer 130 is filled between the column outer tube 110 and the column inner tube 120. At least two first connecting plates 200 are provided, and are respectively welded and fixed on the side walls of the column inner tube 120 on the left and right sides, and each first connecting plate 200 extends toward the wall space and passes through the column outer tube 110. The two ends of the first direction (left and right direction) of the corrugated plate 300 are detachably connected to the first connecting plates 200 on the left and right sides respectively through high-strength bolts. The corrugated plate 300 includes a plurality of crests 310 and troughs 320 connected in sequence along the first direction. An inner filling layer 330 is arranged in the crest 310. The crest 310 can protrude from the surface of the trough 320 in both the front and rear directions. The inner filling layer 330 filled in the crest 310 has the advantages of resisting side impact and strong heat insulation ability. The left and right sides of the upper fixing part 400 and the left and right sides of the lower fixing part 500 are respectively connected to the inner tubes 120 of the columns on both sides. The two ends of the upper and lower directions of the corrugated plate 300 are detachably connected to the upper fixing part 400 and the lower fixing part 500 respectively, so that the corrugated plate 300 covers the entire wall space, and the upper, lower, left and right directions of the corrugated plate 300 are fixed to form a stable wall structure.

[0024] By forming a modular structure with double-tube sandwich hollow columns 100, corrugated plate members 300, upper fixing parts 400 and lower fixing parts 500, the upper structure of the offshore platform can be assembled and assembled to form a high degree of assembly. All components can be prefabricated in the factory and assembled into an integral wall structure, which can be directly transported and hoisted as a whole, greatly reducing on-site operations and shortening the construction period. It solves the problem of limited on-site working conditions and difficulty in large-scale construction, and is very suitable for construction under limited conditions on offshore platforms. In addition, the reasonable design of the structure of the double-tube sandwich hollow column 100, the double-arm hollow column with a large middle hollow ratio, and the structural form of the corrugated plate member 300 have greatly reduced the overall weight of the combined wall.

[0025] The assembled composite wall also has a high lateral resistance. The inside and outside of the corrugated sheet 300 have high rigidity. At the same time, the entire wall is stably connected into a whole through fixing methods such as bolts and welding, which further improves the lateral resistance. In extreme use conditions, such as when encountering extreme weather conditions such as explosions, earthquakes, typhoons, etc., the assembled composite wall can ensure safety. When subjected to lateral external forces, the use of double-tube sandwich hollow columns 100 can disperse internal and external pressures, so that it can show better strength and stability when subjected to bending and impact loads. And when one side of the corrugated sheet 300 is subjected to external force, it will push the corrugated sheet 300 to move to the other side. In this process, the inner filling layer 330 of the crest part 310 will play a role in resistance and energy consumption; in particular, the corrugated sheet 300 located in the wall space is a weak component relative to the double-tube sandwich hollow columns 100 at both ends. When encountering extreme conditions, it will be damaged first, consuming most of the energy to ensure the safety of the main force-bearing components.

[0026] The corrugated plate structure of this assembled composite wall is easy to install, disassemble and replace. It is also explosion-proof, fire-proof and corrosion-resistant. In daily use, this assembled composite wall can not only provide users with a comfortable and quiet working environment, but also provide reliable storage space for large equipment. It has broad application prospects in the engineering technology of the upper structure of the offshore platform.

[0027] like Figure 2 , Figure 3 As shown, further, the column outer tube 110 and the column inner tube 120 of the double-tube sandwich hollow column 100 can be round or square. The column outer tube 110 includes a fiber composite outer tube 111; the filling layer 130 is a concrete sandwich; Figure 3 , Figure 4 As shown, the column inner tube 120 is a corrugated inner steel tube 121 having a corrugated structure. The column outer tube 110 is provided with a slot, and the first connecting plate 200 passes through the slot and is welded and fixed to the outer wall of the column inner tube 120. In the specific structure, the double-tube sandwich hollow column 100 composed of the corrugated inner steel tube 121, the concrete interlayer and the fiber composite outer tube 111 arranged in the up and down directions can be prefabricated in advance and placed in a designated position.

[0028] like Figure 1 , Figure 2 , Figure 5 As shown, the inner tube 120 of the column is a hollow tube, which accounts for more than 80% of the hollow ratio of the entire double-tube sandwich hollow column 100. Therefore, the weight of the entire assembled composite wall is light. Figure 2 , Figure 3 , Figure 4As shown, due to the reasonable design of the corrugated structure on the outer wall of the column inner tube 120, the use of the corrugated inner steel tube 121 can reduce the material consumption compared with the traditional round flat wall steel tube. In addition, the entire double-tube sandwich hollow column 100 has a large hollow ratio, and the inner filling layer 330 filled in the crest part 310 is also a lightweight porous material, so that the weight of the entire corrugated plate 300 is also reduced. Therefore, under various weight reduction factors, the overall weight of the assembled composite wall is greatly reduced. The combination of the column inner tube 120 with a corrugated structure and the corrugated plate 300 filled with a lightweight porous material can not only reduce the overall weight of the wall structure. Moreover, when subjected to lateral external force, the corrugated structure of the inner tube 120 of the column can effectively disperse the internal and external pressures, so that it exhibits better strength and stability when subjected to bending and impact loads; and when subjected to external force, the corrugated plate 300 will deform and move from one side to the other side. During the deformation process of the corrugated plate 300, the lightweight porous material in the peak part 310 will play a role of resistance and energy consumption, thereby achieving better impact resistance.

[0029] like Figure 1 , Figure 2 , Figure 5 As shown, further, the corrugated plate 300 of this embodiment includes two corrugated steel plates, the crests of the two corrugated steel plates are opposite to each other and form a crest part 310, a closed inner cavity area is formed in the crest part 310, the closed inner cavity area is filled with an inner filling layer 330, the troughs of the two corrugated steel plates are against each other to form a trough part 320, and the trough part 320 located between two adjacent closed inner cavity areas is fixedly connected by a first fastener 340, and the first fastener 340 can be a common bolt, and a first reserved bolt hole 321 is opened on the trough part 320, so that the first fastener 340 is fixed after passing through the first reserved bolt hole 321. Therefore, the corrugated plate 300 can be a double-layer laminated corrugated steel plate. In the specific structure, two corrugated steel plates are assembled in a manner that the crests face each other, and are connected into a whole by ordinary bolts at the trough 320, so that the structural strength of the entire corrugated plate 300 is high, and the inner filling layer 330 filled in the closed inner cavity area surrounded by the crests can be a lightweight porous material. In order to enhance the stability of the structure in the wall space in the middle of the structure, the two corrugated steel plates are spliced ​​together by eight groups of ordinary bolts, and the eight groups of ordinary bolts are respectively connected to the trough 320 in the left and right directions. Each group of ordinary bolts includes a plurality of ordinary bolts in the up and down directions. And the inner filling layer 330 filled in the closed inner cavity area in the corrugated plate 300 can be made of foam aluminum to enhance the side resistance and heat insulation capabilities of the combined wall.

[0030] The outer surfaces of the two corrugated steel plates are provided with a galvanized layer. Due to the glass fiber reinforcement used in the column outer tube 110 and the presence of the galvanized layer on the corrugated plate 300, the assembled composite wall has good anti-corrosion ability. Due to the excellent energy absorption capacity of the inner filling layer 330 (such as foamed aluminum), the assembled composite wall has good explosion-proof and fire-proof capabilities; since foamed aluminum is a porous material, its pores can effectively absorb sound waves, and the composite wall has a certain sound insulation ability.

[0031] like Figure 2 As shown, the detailed structure of the peak portion 310 on the corrugated plate 300 of this embodiment has various forms. For example, in the first structure, the peak portions 310 on the corrugated plate 300 are the same size in the first direction (left-right direction), and the spacing distance between adjacent peak portions 310 is the same. Such an evenly spaced arrangement makes the appearance consistent and is also easy to produce.

[0032] like Figure 7 As shown in the second structure, the peaks 310 on the corrugated plate 300 have the same size in the first direction. In the first direction, the peaks 310 are more densely distributed as they are closer to the middle position and more sparsely distributed as they are closer to the sides of the corrugated plate 300. Figure 1 , Figure 7 As shown, in the specific structure, the position of the middle line of the corrugated plate 300 in the left and right directions is the middle line of the corrugated plate. The closer to the middle line of the corrugated plate, the smaller the spacing between the two adjacent wave crests 310. The closer to the two side edges of the corrugated plate 300, the larger the spacing between the two adjacent wave crests 310. Therefore, a distribution structure with dense distribution in the middle and sparse distribution at both ends is formed. The two ends of the corrugated plate 300 in the first direction are close to the double-tube sandwich hollow column 100. The double-tube sandwich hollow column 100 has a strong bearing capacity. Therefore, under the bearing action of the double-tube sandwich hollow column 100, the two ends of the corrugated plate 300 in the first direction are stably supported, so that the two ends of the corrugated plate 300 in the first direction bear force under the joint action of the double-tube sandwich hollow column 100, thereby reducing the distribution density of the wave crests 310 near the two ends of the corrugated plate 300 in the first direction, and also achieving stable bearing capacity. The position close to the center line of the corrugated plate is far from the double-tube sandwich hollow column 100, and the distribution density of the middle wave crest 310 needs to be increased to improve the bearing capacity and the bearing performance of the entire wall. Compared with the uniformly distributed structure, the number of wave crests 310 can be reduced, thereby saving more materials, making the entire wall structure lighter and more suitable for offshore platforms.

[0033] In the third structure, the lengths of the peaks 310 on the corrugated plate 300 in the first direction are different, and the peaks 310 closer to the middle position have a longer length, and the peaks 310 closer to the sides of the corrugated plate 300 have a shorter length. In addition, the peaks 310 closer to the middle position in the first direction are more densely distributed, and closer to the sides of the corrugated plate 300, the more sparsely distributed, and the advantages thereof refer to the second structure.

[0034] like Figure 1 , Figure 5 As shown, further, the troughs 320 located at the edges of both sides of the corrugated sheet 300 in the first direction of this embodiment are fixedly connected to the first connecting plate 200 by the second fasteners 220. In the specific structure, the second fasteners 220 can be high-strength bolts. The two sides in the left and right directions are the troughs 320, and the troughs 320 are provided with second reserved bolt holes 350. The first connecting plate 200 is correspondingly provided with second bolt holes. The high-strength bolts pass through the second reserved bolt holes 350 and the second bolt holes to lock and fix the left and right sides of the corrugated sheet 300 on the first connecting plate 200. Thereby ensuring the stability of the connection.

[0035] like Figure 1 , Figure 3 As shown, further, the upper fixing part 400 and the lower fixing part 500 each include: a fixing beam 410, a main cross beam 420 and a second connecting plate 430 respectively connected to the inner tubes 120 of the columns on both sides. The two ends of the main cross beam 420 in the first direction are respectively detachably connected to the fixing beams 410 on both sides; the second connecting plate 430 is fixedly connected to the main cross beam 420; the second connecting plates 430 at both ends are respectively detachably connected to the two ends of the second direction of the corrugated plate 300. The main cross beam 420 is made of steel, and the cross-sectional shape can be T-shaped, H-shaped or box-shaped. The fixing beam 410 is welded to the corrugated inner steel pipe through the groove on the outer tube 110 of the column. The main cross beam 420 is extended along the first direction, and the two ends are fixedly connected to the fixing beams 410 on both sides. The second connecting plate 430 is extended along the first direction, and the upper end is welded and fixed to the main cross beam 420. By the joint action of the main crossbeam 420 of the upper fixing part 400 located at the upper part and the main crossbeam 420 of the lower fixing part 500 located at the lower part, the second connecting plates 430 at the upper and lower ends are fixed, and the two ends of the second direction of the corrugated plate 300 are detachably connected to the second connecting plates 430 at the upper and lower ends, thereby realizing a stable fixed connection and an assembled connection form.

[0036] like Figure 1 , Figure 3As shown, further, the fixed beam 410 of this embodiment specifically includes: a connecting steel beam 411 and a stiffening rib 412. One end of the connecting steel beam 411 is fixed on the outer wall of the column inner tube 120, and the other end extends out of the column outer tube 110. One side of the stiffening rib 412 is fixed on the outer wall of the column inner tube 120, and the other side is fixed on the connecting steel beam 411, and the stiffening rib 412 is wrapped by the filling layer 130. In the specific structure, the connecting steel beam 411 can be an H-shaped steel beam, and the grooves at the corresponding positions on the column outer tube 110 can adopt H-shaped grooves. The H-shaped connecting steel beam 411 is welded to the corrugated inner steel tube 121, and the upper and lower surface portions of the H-shaped connecting steel beam 411 are embedded in the concrete interlayer, so that the connecting steel beam 411 is not easy to shake in the upper and lower directions and is stably fixed. By welding one side of the stiffening rib 412 to the corrugated inner steel pipe 121 and the other side to the H-shaped connecting steel beam 411, and wrapping the lower end and the side with a solid concrete sandwich, the fixing of the fixed beam 410 is made more stable. In addition, a corrugated tooth structure can be provided on the side of the connecting steel beam 411 facing the corrugated inner steel pipe 121, and a corrugated tooth structure can be provided on the side of the stiffening rib 412 facing the corrugated inner steel pipe 121, so that the corrugated tooth structure meshes with the corrugated structure on the corrugated inner steel pipe 121, and the matching performance after welding and fixing is better, making the welding more firm.

[0037] like Figure 1 , Figure 3 As shown, further, the connecting steel beam 411 and the main cross beam 420 are fixedly connected by a third connecting plate 440. In the specific structure, third reserved bolt holes 413 are provided on the connecting steel beams 411 on the left and right sides, and the two ends of the third connecting plate 440 in the left and right directions are respectively fixed to the connecting steel beam 411 and the main cross beam 420 by high-strength bolts. For example, the third connecting plate 440 is fixed to the connecting steel beam 411 by inserting a high-strength bolt into the third reserved bolt hole 413 and passing through the third connecting plate 440, so as to realize a detachable assembly mode.

[0038] like Figure 1 , Figure 5 , Figure 6 As shown, further, T-shaped plates 360 are fixed at both ends of the second direction of the corrugated plate 300, and the T-shaped plates 360 are connected to the second connecting plate 430 through a third fastener. In the specific structure, T-shaped plates 360 are welded to the upper and lower edges of the corrugated plate 300, and the transverse plates of the T-shaped plates 360 are welded to the corrugated plate 300 and cover the upper and lower ends of the entire crest portion 310, thereby achieving sealing. A fourth reserved bolt hole 361 is provided on the longitudinal plate of the T-shaped plate 360, and the longitudinal plate of the T-shaped plate 360 ​​and the second connecting plate 430 are connected together through the fourth reserved bolt hole 361 by a high-strength bolt, so that the corrugated plate 300 is installed in the middle.

[0039] In another structure, T-shaped plates may also be welded to both ends of the corrugated plate 300 in the first direction, so that the T-shaped plates are fixedly connected to the first connecting plate 200 by the second fasteners 220 to achieve fixation.

[0040] Therefore, the two sides of the corrugated plate 300 in the left and right directions are detachably connected to the first connecting plate 200 through high-strength bolts, and the two sides of the corrugated plate 300 in the upper and lower directions are detachably connected to the second connecting plate 430 through high-strength bolts, thereby achieving the advantages of easy installation, easy disassembly and replacement.

[0041] The assembly process of the assembled combined wall of this embodiment is specifically as follows: A double-tube sandwich hollow column 100 is made by a corrugated inner steel tube 121, a fiber composite outer tube 111 and a concrete interlayer therebetween. A slot is reserved on the fiber composite outer tube 111, and a fixed beam 410 and a first connecting plate 200 are passed through the slot and passed through the fiber composite outer tube 111 and welded to the corrugated inner steel tube 121, thereby forming a first assembly component.

[0042] The second transverse connecting plate 430 is welded to the bottom main beam 420 to form a second assembly component.

[0043] Two corrugated steel plates are assembled in a manner that the wave crests face each other, and ordinary bolts are used to connect them at the wave troughs to form an integral double-layer laminated corrugated steel plate. Foam aluminum is filled in the wave crest portion 310 surrounded by the wave crests, and T-shaped plates 360 are welded and fixed at both ends of the corrugated plate 300 in the upper and lower directions, thereby forming a third assembly component.

[0044] The two second assembly components are directly connected to the first assembly components on the left and right sides in the up and down directions, so that the left and right ends of the second assembly components are respectively assembled and connected by bolts through the third connecting plate 440; then the upper, lower, left and right edges of the third assembly component are assembled and connected by bolts, thereby realizing the assembly of the assembled combination wall.

[0045] In summary, the assembled composite wall of the upper structure of the offshore platform proposed in this application fully utilizes the advantages of the combined structure, has a reasonable force form, and a clear force transmission path. The assembled composite wall can be prefabricated in the factory and assembled directly on site. The on-site construction is convenient, environmentally friendly, and efficient. At the same time, it is light in weight, multifunctional, and has broad engineering application prospects.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An assembled composite wall of an offshore platform superstructure, characterized in that: include: Double-tube sandwich hollow columns are arranged at intervals on both sides of the first direction, the double-tube sandwich hollow columns have a column outer tube, a column inner tube and a filling layer, the column outer tube is sleeved on the outside of the column inner tube, and the filling layer is filled between the column outer tube and the column inner tube; A first connecting plate, which is fixedly disposed on the side wall of the column inner tube and passes through the column outer tube; A corrugated plate, wherein two ends of the corrugated plate in the first direction are respectively detachably connected to the first connecting plate, the corrugated plate comprises a plurality of crests and troughs sequentially connected along the first direction, and an inner filling layer is arranged in the crest; An upper fixing part and a lower fixing part, both sides of the first direction of the upper fixing part and both sides of the first direction of the lower fixing part are respectively connected to the inner tubes of the columns on both sides, and both ends of the second direction of the corrugated plate are respectively detachably connected to the upper fixing part and the lower fixing part, wherein the second direction is perpendicular to the first direction.

2. The assembled combined wall of the upper structure of an offshore platform according to claim 1, characterized in that: The inner tube of the column is a corrugated inner steel tube, and a slot is formed on the outer tube of the column. The first connecting plate passes through the slot and is fixedly connected to the outer wall of the inner tube of the column.

3. The assembled combined wall of the upper structure of an offshore platform according to claim 2, characterized in that: The column outer tube comprises a fiber composite outer tube, and the filling layer is a concrete interlayer; The inner tube of the column is a hollow tube, and the hollow ratio of the inner tube to the volume of the entire double-tube sandwich hollow column is greater than 80%.

4. The assembled combined wall of the upper structure of an offshore platform according to claim 1, characterized in that: The corrugated plate member comprises two corrugated steel plates; The wave crests of the two corrugated steel plates face each other and form the wave crest portion, a closed inner cavity area is formed in the wave crest portion, the closed inner cavity area is filled with the inner filling layer, the wave troughs of the two corrugated steel plates abut against each other to form a wave trough portion, and the wave trough portion located between two adjacent wave crest portions is fixedly connected by a first fastener.

5. The assembled combined wall of the upper structure of an offshore platform according to claim 4, characterized in that: The inner filling layer comprises foamed aluminum; A galvanized layer is arranged on the outer surfaces of the two corrugated steel plates.

6. The assembled combined wall of the upper structure of an offshore platform according to claim 4, characterized in that: The trough parts located at the two side edges of the corrugated plate in the first direction are fixedly connected to the first connecting plate by second fasteners.

7. The assembled combined wall of the upper structure of an offshore platform according to any one of claims 1 to 6, characterized in that: The upper fixing part and the lower fixing part both include: fixing beams respectively connected to the inner tubes of the columns on both sides; A main crossbeam, two ends of which in a first direction are detachably connected to the fixed beams on both sides; a second connecting plate, the second connecting plate being fixedly connected to the main crossbeam; The second connecting plates at both ends are detachably connected to both ends of the corrugated plate member in the second direction.

8. The assembled combined wall of the upper structure of an offshore platform according to claim 7, characterized in that: The fixed beam comprises: a connecting steel beam, one end of which is fixed to the outer wall of the inner tube of the column, and the other end of which extends out of the outer tube of the column; A stiffening rib, one side of which is fixed on the outer wall of the inner tube of the column, and the other side of which is fixed on the connecting steel beam, and the stiffening rib is wrapped by the filling layer.

9. The assembled combined wall of the upper structure of an offshore platform according to claim 8, characterized in that: The connecting steel beam and the main cross beam are fixedly connected via a third connecting plate.

10. The assembled combined wall of the upper structure of an offshore platform according to claim 7, characterized in that: T-shaped plates are respectively fixed to both ends of the corrugated plate in the second direction, and the T-shaped plates are connected to the second connecting plate through a third fastener.

Images