CN216121619U - Improved supporting structure for typhoon-resistant cable bridge of offshore booster station - Google Patents
Improved supporting structure for typhoon-resistant cable bridge of offshore booster station Download PDFInfo
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- CN216121619U CN216121619U CN202121598698.3U CN202121598698U CN216121619U CN 216121619 U CN216121619 U CN 216121619U CN 202121598698 U CN202121598698 U CN 202121598698U CN 216121619 U CN216121619 U CN 216121619U
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Abstract
The utility model relates to an improved supporting structure of an anti-typhoon cable bridge of an offshore booster station, which comprises a deck arranged on the offshore booster station and a plurality of groups of cable bridges distributed on the bottom surface of the deck, and is characterized in that: the bottom surface of the deck is provided with a plurality of parallel reinforced ribs, and the cable bridge is fixed on the deck through the parallel reinforced ribs to form a supporting structure of the distributed cable bridge; the cable bridge frame comprises a parallel part and a vertical part, the parallel part is arranged in parallel with the reinforced rib, and the vertical part is arranged perpendicular to the reinforced rib; the joint of the parallel part and the reinforced rib is provided with a bidirectional reinforced rib so as to enlarge the supporting stress surface of the parallel part and form a reinforced supporting structure; and two sides of the cable bridge frame suspension arm are respectively provided with an inclined pull rod to form an anti-typhoon reinforced support structure. The method has the substantial characteristics and progress of less steel consumption, light weight, low cost, simple structure, shorter construction period, high construction efficiency and the like.
Description
Technical Field
The utility model relates to an improved typhoon-resistant cable bridge support structure of an offshore booster station, which adopts a typhoon-resistant cable bridge support structure with a bidirectional reinforced plate grid. Belongs to the technical field of offshore power transmission and distribution equipment.
Background
At present, the offshore booster station is the main equipment for offshore transportation. And a large number of cable bridges are required to be laid below the deck of the offshore booster station. In the prior art, the support of the cable bridge is generally formed by connecting H/T sectional materials, and the support mainly depends on the strength of the H/T sectional materials to support the weight of a cable and the torsion of typhoon so as to meet the design requirements of cable bearing and typhoon resistance.
Because the suspension arm is completely formed by the H/T section bar, although the characteristic of high rigidity of the H/T section bar can be utilized, the suspension arm has the characteristics of convenience in welding the cable bridge suspension arm at any position and convenience in construction of welding the cable bridge suspension arm; however, the H/T section bar has the problems of large steel consumption, heavy weight, high cost and the like of the cable bridge support structure due to large volume and heavy weight.
In order to reduce the self weight of the cable bridge support structure, a mixed structure consisting of H/T sectional materials and flat bulb steels is adopted, wherein the H/T sectional materials are adopted in the area for welding the suspension arm of the cable bridge, and the flat bulb steels are adopted in other areas, so that the self weight of the support structure can be reduced, the consumption of the H/T sectional materials is reduced, and the cost is partially reduced; however, due to two structural forms of the H/T section structure and the flat bulb steel, the problems of complex structure, long construction period, low construction efficiency, heavy overall weight and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of high steel consumption, heavy weight, high cost, complex structure, long construction period, low efficiency and the like of a cable bridge support structure in the prior art, and provides an improved offshore booster station typhoon-resistant cable bridge support structure which has the vacated substantive characteristics and obvious technical progress of low steel consumption, light weight, low cost, simple structure, short construction period, high construction efficiency and the like.
The purpose of the utility model can be achieved by adopting the following technical scheme:
the utility model provides an anti typhoon cable testing bridge bearing structure of modified marine booster station, is in including setting up the deck and the distribution of marine booster station a plurality of groups cable testing bridge of deck bottom surface, its structural feature lies in: the bottom surface of the deck is provided with a plurality of parallel-shaped reinforcing ribs, and the cable bridge is fixed on the deck through the parallel-shaped reinforcing ribs to form a supporting structure of the distributed cable bridge; the cable bridge comprises a parallel part and a vertical part, wherein the parallel part is arranged in parallel with the reinforced rib, and the vertical part is arranged perpendicular to the reinforced rib; the joint of the parallel part and the reinforced rib is provided with a bidirectional reinforced rib so as to enlarge the supporting stress surface of the parallel part and form a reinforced supporting structure; each group of cable bridge comprises a cable bridge suspension arm, each group of cable bridge is fixedly connected with the parallel reinforced rib through the cable bridge suspension arm, and the cable bridge cross stops with more than two layers form a multi-layer cable bridge structure; the upper end of the diagonal draw bar is fixedly connected with the parallel reinforced rib, and the lower end of the diagonal draw bar is fixedly connected with the cable bridge suspension arm to form an anti-typhoon reinforced support structure; or the diagonal draw bar is welded between the cable bridge frame suspension arm and the bidirectional reinforced rib by adopting angle steel to form the typhoon-resistant reinforced support structure.
The purpose of the utility model can be achieved by adopting the following technical scheme:
furthermore, a connector is formed at the connecting position so as to facilitate the fixed connection of the cable bridge frame suspension arm and the parallel reinforced ribs; the parallel reinforced ribs are formed by hemispherical flat steel bars.
Furthermore, the bidirectional reinforced rib is composed of hemispherical flat steel bars, the middle part of the bidirectional reinforced rib is fixedly connected with two parallel reinforced ribs, and the two ends of the bidirectional reinforced rib are respectively fixedly connected with an adjacent parallel reinforced rib to form a reinforced fixed connection structure.
Furthermore, in the integrated rigid structure formed by connecting all the parallel reinforcing ribs in the suspension arms of the same group of cable bridges, one parallel reinforcing rib extends outwards.
Further, by locally increasing the number of cable tray arms when the cable tray arms are positioned in the area between the parallel stiffening ribs 1/3, the cable tray arms are prevented from being positioned in the area between the parallel stiffening ribs 1/3 when the cable tray arms are positioned.
Furthermore, the span of the parallel reinforced ribs is 2.5-3.5 m, and the distance is 600-800 mm; the bearing capacity of the row-shaped reinforced rib 5 is set to be 5-10 kN/m.
The utility model has the following beneficial effects:
1. according to the utility model, as the bottom surface of the deck is provided with the plurality of parallel-shaped reinforced ribs, the cable bridge is fixed on the deck through the parallel-shaped reinforced ribs, so that a supporting structure of the distributed cable bridge is formed; the cable bridge comprises a parallel part and a vertical part, wherein the parallel part is arranged in parallel with the reinforced rib, and the vertical part is arranged perpendicular to the reinforced rib; the joint of the parallel part and the reinforced rib is provided with a bidirectional reinforced rib so as to enlarge the supporting stress surface of the parallel part and form a reinforced supporting structure; each group of the cable bridge comprises a cable bridge suspension arm, and each group of the cable bridge is fixedly connected with the parallel reinforced rib through the cable bridge suspension arm and a cable bridge crosspiece with more than two layers to form a multi-layer cable bridge structure. Therefore, the problems of high steel consumption, heavy weight, high cost, complex structure, long construction period, low efficiency and the like of the cable bridge support structure in the prior art can be solved, and the cable bridge support structure has the substantial characteristics and the progress of low steel consumption, light weight, low cost, simple structure, short construction period, high construction efficiency and the like.
2. The utility model can meet the structural strength requirement, can give the most economic supporting system without rework rate by considering the cable bridge support requirement on the basis of meeting the strength design of a deck, and achieves the purposes of optimizing the structural design, improving the construction progress and saving the cost.
3. The utility model can save a large amount of steel and realize energy conservation and emission reduction; the weight of the offshore booster station can be effectively controlled, and marine transportation and hoisting are facilitated; the use of fire-proof materials and anticorrosive paint is reduced. The structural design in the early stage is not influenced by the electrical design in the later stage, the principle is simple, and no work of modifying a production model is needed, so that the construction progress is promoted.
Drawings
Fig. 1 is a schematic bottom view of an embodiment of the present invention.
Fig. 2 is a schematic view of the structure a-a in fig. 1.
Fig. 3 is a schematic structural view of the connection between the cable tray boom and the parallel reinforcement ribs in fig. 2.
Fig. 4 is a schematic view of the structure C-C in fig. 3.
Fig. 5 is a schematic structural view of a connection of parallel reinforcing ribs according to an embodiment of the present invention.
Fig. 6 is a schematic view of a connection root structure of a cable bridge according to an embodiment of the present invention.
Fig. 7 is a schematic diagram of a cable tray arrangement according to an embodiment of the present invention.
FIG. 8 is a schematic diagram of a cable tray boom joint arrangement according to an exemplary embodiment of the present invention.
Fig. 9 is a schematic view of a structure of the prior art.
Detailed Description
Specific example 1:
referring to fig. 1 to 6, an anti-typhoon cable tray support structure for an offshore booster station according to embodiment 1 of the present invention includes a deck disposed on an offshore booster station and a plurality of sets of cable trays 1 disposed on a bottom surface of the deck, wherein a plurality of parallel reinforcement ribs 5 are disposed on the bottom surface of the deck, and the cable trays 1 are fixed on the deck by the parallel reinforcement ribs 5 to form a support structure for the distributed cable trays 1; the cable bridge frame 1 comprises a parallel part 1-1 and a vertical part 1-2, wherein the parallel part 1-1 is arranged in parallel with the reinforced rib 5, and the vertical part 1-2 is arranged perpendicular to the reinforced rib 5; a joint 4 of the parallel part 1-1 and the reinforced rib 5 is provided with a bidirectional reinforced rib 6 so as to enlarge the supporting stress surface of the parallel part 1-1 and form a reinforced supporting structure; each group of the cable bridge 1 comprises a cable bridge suspension arm 3, and each group of the cable bridge 1 is fixedly connected with the parallel reinforced rib 5 through the cable bridge suspension arm 3 and a cable bridge crosspiece 2 with more than two layers to form a multilayer cable bridge structure.
In this embodiment:
and two sides of the cable bridge crane jib 3 are respectively provided with a diagonal draw bar 7, the upper end of the diagonal draw bar 7 is fixedly connected with the parallel reinforced rib 5, and the lower end of the diagonal draw bar 7 is fixedly connected with the cable bridge crane jib 3, so that a typhoon-resistant reinforced support structure is formed.
The connecting part 4 forms a connector so as to facilitate the fixed connection of the cable bridge crane jib 3 and the parallel reinforced ribs 5; the parallel-shaped rib ribs 5 are formed by hemispherical flat steel bars.
The bidirectional reinforced rib 6 is composed of hemispherical flat steel bars, the middle part of the bidirectional reinforced rib is fixedly connected with two parallel reinforced ribs 5, and the two ends of the bidirectional reinforced rib are respectively fixedly connected with an adjacent parallel reinforced rib 5 to form a reinforced fixed connection structure.
In the suspension arm 3 of the same group of cable bridge frame, all the parallel reinforced ribs 5 are connected to form an integral rigid structure, and one parallel reinforced rib 5 extends outwards.
When the cable bridge boom 3 is positioned, the number of cable bridge booms 3 is locally increased when the cable bridge boom 3 is positioned in the area 1/3 in the middle of the parallel stiffening ribs 5, so as to avoid the cable bridge boom 3 being positioned in the area 1/3 in the middle of the parallel stiffening ribs 5.
The span of the parallel reinforced ribs 5 is 2.5-3.5 m, and the distance is 600-800 mm; the bearing capacity of the row-shaped reinforced rib 5 is set to be 5-10 kN/m.
The method for supporting the typhoon-resistant cable bridge of the offshore booster station in practical application is characterized by comprising the following steps:
1) according to the distribution of cable bridges in a deck of the offshore booster station, a plurality of parallel reinforced ribs 5 are fixedly arranged on the bottom surface of the deck to form a parallel distributed support structure;
2) in the area parallel to the direction of the cable bridge, two-way ribbed ribs 6 which are vertically crossed with the parallel ribbed ribs 5 are arranged, and the two-way ribbed plate is of a lattice structure so as to strengthen the supporting rigidity of the cable bridge; the part perpendicular to the parallel reinforced ribs 5 along the direction of the cable bridge 1 is not provided with a bidirectional reinforced plate lattice structure;
3) connecting all parallel reinforced ribs 5 in the suspension arms 3 of the same group of cable bridges to form an integrated rigid structure, and forming a bidirectional stiffened plate grid type typhoon-resistant cable bridge support structure;
4) and two sides of the cable bridge frame suspension arm 3 are respectively provided with a diagonal draw bar 7 to form an anti-typhoon type reinforced support structure.
Further, 1) setting the span and the interval of the parallel reinforced ribs 5, the maximum load of the cable bridge crane jib 3 and the maximum interval of the cable bridge crane jib 3 according to the deck structure of the offshore booster station to form cable bridge support member design data; 2) arranging a cable bridge layout, marking the arrangement position and span of the parallel reinforced ribs 5, the maximum load of the cable bridge suspension arm 3 and the distance (generally about 1500 mm) of the cable bridge suspension arm 3 in the cable bridge layout; 3) and comparing the cable bridge support member design data with the cable bridge layout icon data, rechecking whether the strength and the deformation of the cable bridge suspension arm 3 meet the design requirements, and if the strength and the deformation of the cable bridge suspension arm 3 do not meet the design requirements, feeding back to an electrical professional designer and reducing the maximum distance between the cable bridge suspension arms 3 on site.
Furthermore, the diagonal draw bar 7 is welded between the cable bridge crane jib 3 and the bidirectional reinforced rib 6 by adopting various profiles such as angle steel and the like.
Furthermore, the span and the interval of the parallel reinforced ribs 5 are set according to the thickness and the material of the deck of the offshore booster station, so that the span is set to be 2.5-3.5 meters for facilitating the operation of the ship industry, and the interval is set to be 600-800 mm; the bearing capacity of the flat bulb steel is set to be 5-10 kN/m.
Furthermore, the total weight of the cable and the cable bridge in unit length is 2-6 kN/m according to the type of the cable and the number of layers of the cable bridge.
Furthermore, the strength and deformation of the cable bridge crane jib 3 are rechecked, and when the strength and deformation are rechecked, the strength function of the deck is not considered, and some strength reserves are reserved.
The operation of the present embodiment will be described in detail with reference to the accompanying drawings:
referring to fig. 7 to 8, in practical application, the parallel reinforcing ribs 5 are distributed on the bottom surface of a deck 8, then the bidirectional reinforcing ribs 6 which are vertically intersected with the parallel reinforcing ribs 5 are arranged in an area parallel to the direction of a cable bridge according to the distribution and the layer number of the cable bridge 1, and the bidirectional reinforcing plate lattice structure is used for enhancing the supporting rigidity of the cable bridge; a special connector is arranged at the joint 4 of the cable bridge frame suspension arm 3 and the parallel reinforced rib 5 so as to facilitate the fixed connection (which can be welded or screwed). In the area parallel to the direction of the cable bridge, because the connection between the suspension arm 3 of the cable bridge and the parallel reinforced ribs 5 is multi-point connection, the rigidity of the area needs to be enhanced, and the bidirectional reinforced ribs 6 extend towards two sides and are fixedly connected with the adjacent parallel reinforced ribs 5, so that the supporting stress surface of the cable bridge 1 is integrally expanded, and the supporting strength is enhanced; in the area perpendicular to the direction of the cable bridge, the cable bridge suspension arm 3 is integrally connected with the parallel reinforced ribs 5, so that the supporting stress surface of the cable bridge suspension arm is large enough on the whole, and an additional reinforcing structure is not required.
Referring to fig. 9, in a typical application example of the prior art, a flat bulb steel structure is adopted for a support beam of a deck, and an H/T profile structure is adopted for an area for installing a cable bridge support system. Although the supporting beam of the deck is made of flat bulb steel, the consumption of steel materials can be reduced, and the weight can be reduced. The following problems still remain: the overall structure of the supporting structure is complex, the construction and arrangement time is long, the electrical profession needs coordination and other professional pipeline arrangement, and the arrangement drawing time of the cable bridge is far lagged behind the drawing time of the deck of the structure. Particularly, after a building unit completes the ribbed modeling of the deck, the supporting structure of the whole deck is set based on the ribbed cable bridge supporting structure, if the prior art scheme is adopted, namely when a cable bridge layout is required to be received, H/T section bars are required to be replaced in the area where the cable bridge supporting system is installed to replace fixedly connected flat bulb steel, so that on one hand, a production model needs to be modified to influence the construction progress, and on the other hand, a large amount of purchased deck materials are wasted. Resulting in a large increase in time cost, labor cost, and raw material cost, and also delaying the progress of construction.
Specific example 2:
the specific embodiment 2 of the present invention is characterized in that: the diagonal draw bar 7 is welded between the cable bridge frame suspension arm 3 and the bidirectional reinforced rib 6 by adopting angle steel to form an anti-typhoon type reinforced support structure. The rest is the same as in embodiment 1.
Specific example 3:
the specific embodiment 3 of the present invention is characterized in that: in the suspension arm 3 of the same group of cable bridge frame, all the parallel reinforced ribs 5 are connected to form an integral rigid structure, and one parallel reinforced rib 5 does not extend outwards. The rest is the same as embodiment 1 or embodiment 2.
Practical application shows that in the prior art, because the rigidity of the H/T section is higher, a cable bridge support can be arranged at any position of the H/T section, which is beneficial to shortening the design time and reducing the field construction, but the steel consumption is excessive, and the weight is increased excessively: according to the standard design, the flat bulb steel can meet the strength requirement of the deck, and the H/T-shaped steel is 2-4 times of the weight of the flat bulb steel; moreover, the cable bridge frame itself requires a support distance of 1.5 m, and the H/T section bar cannot fully exert the material performance. According to the current practical project experience: for a booster station with about 300MW, the H/T section is adopted, and the steel consumption is increased by about 50-100 tons. Therefore, the H/T section bar is poor in economy and is not beneficial to weight control of the offshore booster station.
The offshore booster station has the requirements of corrosion resistance and fire resistance, the deck beam needs to be completely wrapped by corrosion resistance and fire resistance materials, the corrosion resistance and fire resistance materials of the deck beam can be increased by 50-100% by using the H/T section, and the economy is poor. A typical fire-blocking wrap is shown in the accompanying drawings:
in conclusion, the technical scheme of the utility model can solve the technical problems in the prior art, and can meet the structural strength requirement, and has high economical efficiency, low or no rework rate. The utility model aims to meet the requirement of supporting a cable bridge frame on the basis of meeting the strength design of a deck, provide a supporting system which is most economical and has no rework rate, and achieve the purposes of optimizing the structural design, improving the construction progress and saving the cost. The steel consumption can be greatly saved, and the energy conservation and emission reduction are realized. The weight of the offshore booster station can be effectively controlled, and marine transportation and hoisting are facilitated. The use of fire-proof materials and anticorrosive paint can be reduced. The structural design in the early stage is not influenced by the electrical design in the later stage, the principle is simple, and no work of modifying a production model is needed, so that the construction progress is promoted.
Claims (6)
1. The utility model provides an anti typhoon cable testing bridge bearing structure of modified marine booster station, is in including setting up the deck and the distribution of marine booster station a plurality of groups cable testing bridge (1) of deck bottom surface, its characterized in that: the bottom surface of the deck is provided with a plurality of parallel-shaped reinforcement ribs (5), and the cable bridge (1) is fixed on the deck through the parallel-shaped reinforcement ribs (5) to form a supporting structure of the distributed cable bridge (1); the cable bridge (1) comprises a parallel part (1-1) and a vertical part (1-2), the parallel part (1-1) and the reinforcement rib (5) are arranged in parallel, and the vertical part (1-2) and the reinforcement rib (5) are arranged vertically; a joint (4) of the parallel part (1-1) and the reinforced rib (5) is provided with a bidirectional reinforced rib (6) so as to enlarge the supporting stress surface of the parallel part (1-1) and form a reinforced supporting structure; each group of the cable bridge (1) comprises a cable bridge suspension arm (3), each group of the cable bridge (1) is fixedly connected with the parallel reinforced rib (5) through the cable bridge suspension arm (3), and the cable bridge cross bars (2) with more than two layers form a multi-layer cable bridge structure; the two sides of the cable bridge frame suspension arm (3) are respectively provided with a diagonal draw bar (7), the upper end of the diagonal draw bar (7) is fixedly connected with the parallel reinforced rib (5), and the lower end is fixedly connected with the cable bridge frame suspension arm (3) to form an anti-typhoon reinforced support structure; or the diagonal draw bar (7) is welded between the cable bridge frame suspension arm (3) and the bidirectional reinforced rib (6) by adopting angle steel to form the typhoon-resistant reinforced support structure.
2. The improved offshore booster station typhoon-resistant cable tray support structure of claim 1, wherein: the joint (4) forms a connector so as to facilitate the fixed connection of the cable bridge crane jib (3) and the parallel reinforced ribs (5); the parallel reinforced ribs (5) are formed by hemispherical flat steel bars.
3. The improved offshore booster station typhoon-resistant cable tray support structure of claim 1, wherein: the bidirectional reinforced rib (6) is composed of hemispherical flat steel bars, the middle part of the bidirectional reinforced rib is fixedly connected with two parallel reinforced ribs (5), and the two ends of the bidirectional reinforced rib are respectively fixedly connected with an adjacent parallel reinforced rib (5) to form a reinforced fixed connection structure.
4. The improved offshore booster station typhoon-resistant cable tray support structure of claim 1, wherein: all the parallel reinforced ribs (5) in the suspension arms (3) of the same group of cable bridges are connected to form an integrated rigid structure, and one parallel reinforced rib (5) extends outwards.
5. The improved offshore booster station typhoon-resistant cable tray support structure of claim 1, wherein: when the cable bridge suspension arm (3) is arranged, when the cable bridge suspension arm (3) is positioned in the middle 1/3 area of the parallel reinforced rib (5), the number of the cable bridge suspension arms (3) is locally increased, so that the cable bridge suspension arm (3) is prevented from being positioned in the middle 1/3 area of the parallel reinforced rib (5).
6. The improved offshore booster station typhoon-resistant cable tray support structure of claim 1, wherein: the span of the parallel reinforced ribs (5) is 2.5-3.5 m, and the distance is 600-800 mm; the bearing capacity of the row-shaped reinforced rib (5) is set to be 5-10 kN/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598698.3U CN216121619U (en) | 2021-07-14 | 2021-07-14 | Improved supporting structure for typhoon-resistant cable bridge of offshore booster station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121598698.3U CN216121619U (en) | 2021-07-14 | 2021-07-14 | Improved supporting structure for typhoon-resistant cable bridge of offshore booster station |
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| Publication Number | Publication Date |
|---|---|
| CN216121619U true CN216121619U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121598698.3U Active CN216121619U (en) | 2021-07-14 | 2021-07-14 | Improved supporting structure for typhoon-resistant cable bridge of offshore booster station |
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| CN (1) | CN216121619U (en) |
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- 2021-07-14 CN CN202121598698.3U patent/CN216121619U/en active Active
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