CN117533455A - Open pore type and reinforcing structure of large-span double-deck supporting surrounding wall - Google Patents
Open pore type and reinforcing structure of large-span double-deck supporting surrounding wall Download PDFInfo
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- CN117533455A CN117533455A CN202311444891.5A CN202311444891A CN117533455A CN 117533455 A CN117533455 A CN 117533455A CN 202311444891 A CN202311444891 A CN 202311444891A CN 117533455 A CN117533455 A CN 117533455A
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- plate
- longitudinal
- deck
- open
- pore
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- 239000011148 porous material Substances 0.000 title claims abstract description 40
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 37
- 230000002787 reinforcement Effects 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000002146 bilateral effect Effects 0.000 claims description 13
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/56—Bulkheads; Bulkhead reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/48—Decks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/48—Decks
- B63B3/52—Pillars; Deck girders
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to the technical field of ship hull structure design and discloses a large-span double-deck support enclosure wall open-pore type and a reinforcing structure, which comprise longitudinal bulkheads, adjacent stringers, channel open-pores, double-deck decks, transverse support enclosure walls, a strong beam and a transverse weak plate reinforcement structure.
Description
Technical Field
The invention relates to the technical field of ship hull structure design, in particular to a large-span double deck support enclosure wall open pore type and a reinforcing structure.
Background
At present, the improvement of the utilization rate of ocean resources and the increase of the maintenance strength of ocean authorities promote the trend of large-scale and generalized development of ships, and the evaluation of the structural safety of the ships is a hotspot problem of the research of ship mechanics. The increase of the tonnage of the transport ship and the ship brings about the increase of the area of the deck, and the structural strength of the deck is required to be higher. But simultaneously, the ship is usually provided with a large cabin structure, and in order to ensure the smoothness of the cabin, supporting structures such as a pillar, a bulkhead and the like are not arranged in the ship, so that a deck at the top of the large cabin has the structural characteristics of large span and no support.
The long-span double deck 1 is used as a main longitudinal bearing member of the ship and needs to bear huge total longitudinal pulling and ballast load; meanwhile, the requirements on rigidity and strength of a ship structure are high due to the fact that large vertical local loads are brought by vehicle transportation, deck waves and the like, the vitality of the ship is threatened once the ship structure is damaged or unstable, in some ship types with large-span double deck, transverse supporting surrounding walls are generally arranged for meeting the transverse rigidity requirements of the ship structure, and in order to meet the passing requirements of a whole ship, structural holes are formed in the transverse supporting surrounding walls, the structural holes are formed in the ends of the double deck strong beams, according to the loading characteristics of the large-span double deck, the end parts of the deck strong beams or transverse bulkheads in the ship width direction bear large shearing forces and bending moments, in general structural design, the structural design is designed to ensure the continuity of the ship structure and meet the structural rigidity requirements, as shown in fig. 1, the end parts of the strong beams are enlarged by 3, the root parts are connected with the longitudinal bulkheads in a horizontal truss mode, and the root parts are left 2 to a certain extent when the structure holes are formed, the smoothness of a channel is affected to a certain extent, and the applicability of the ship channel is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that the prior supporting surrounding wall has unreasonable open pore pattern and influences the smoothness and applicability of a ship body channel.
In order to solve the technical problems, the technical scheme of the invention provides a large-span double-deck support enclosure wall open-pore type and reinforcing structure, which comprises a longitudinal bulkhead, adjacent stringers, a channel open-pore, a double-deck, a transverse support enclosure wall, a strong beam and a transverse weak plate reinforcement structure, wherein the double-deck comprises an upper deck and a lower deck, the transverse support enclosure wall is arranged between the lower deck and the upper deck, the channel open-pore is arranged on the transverse support enclosure wall, the bottom of the channel open-pore is connected with the lower deck, the strong beam is arranged below the lower deck, the end part of the strong beam is provided with a thick plate reinforcement structure, the thick plate reinforcement structure is positioned below the channel open-pore, the longitudinal bulkhead and the adjacent stringers are arranged below the lower deck and are respectively positioned at two sides of the channel open-pore, the transverse weak plate reinforcement structure is arranged at two sides of the strong beam along the ship length direction and is connected with the longitudinal bulkhead and the adjacent stringers, and a plurality of longitudinal bones or vertical ribs are uniformly arranged on the deck and the channel open-pore.
Through adopting above-mentioned technical scheme, leave the root with traditional trompil bottom and get rid of, make trompil and deck direct contact, improve the unobstructed nature and the suitability of trompil passageway, and set up on the strong crossbeam and inlay thick plate reinforcement structure and horizontal weak plate reinforcement structure and reduce local stress concentration, increase the intensity of junction.
Optionally, the toe end area at the bottom of the channel opening is subjected to full-welding penetration treatment, the toe end is subjected to rounding treatment, the side edges of the channel opening are subjected to welt reinforcement treatment, bilateral vertical reinforcing ribs are arranged at the positions of 100-150 mm on two sides of the channel opening, the joint of the bilateral vertical reinforcing ribs and the lower deck is subjected to end amplification treatment, and the amplified toe ends and rounding radius of the bilateral vertical reinforcing ribs are twice the width of the bilateral vertical reinforcing ribs.
Optionally, the vertical bulkhead lower extreme is equipped with vertical bulkhead horizontal truss, inlays thick plate reinforcement structure and includes inlays thick plate and gusset, it establishes in passageway trompil below to inlay the thick plate, the gusset is established on inlaying the thick plate, the strong crossbeam is connected with vertical bulkhead, adjacent stringer and vertical bulkhead horizontal truss through inlaying thick plate reinforcement structure.
Optionally, one side of the embedded thick plate reinforcement structure is provided with a heel supplementing plate, the heel supplementing plate is arranged on a longitudinal bone below the lower deck, the root supplementing plate is provided with a vertical reinforcement, the vertical reinforcement is flat steel, the distance between the vertical reinforcement and the toe end of the toe end area is 20-50mm, and the thickness of the vertical reinforcement is not less than the thickness of the lower deck at the position where the vertical reinforcement is located.
Optionally, the lower deck below is equipped with vertical muscle, vertical muscle is located the benefit and follows the benefit board both sides, vertical muscle is band steel, and thickness is not less than the lower deck thickness of vertical muscle place department.
Optionally, a supporting surrounding wall or a strong vertical truss is arranged on one side of the longitudinal bulkhead, on which the embedded thick plate reinforcement structure is not arranged.
Optionally, the horizontal weak plate reinforcement structure includes aperture board and bottom surface board, the bottom surface board is the letter shaped board of lulu, is equipped with two slot holes on it, the bottom surface board sets up along the captain direction, the aperture board is equipped with two, establishes respectively in inlaying thick plate reinforcement structure both sides, the aperture board is connected on two side boards of bottom surface board, inlay thick plate reinforcement structure lower extreme and connect on the bottom surface board intermediate lamella.
Optionally, the bottom plate both ends respectively with adjacent stringer and longitudinal bulkhead welding, just the bottom plate tip sets up the tip and enlarges the structure, slot hole four corners on the bottom plate is equipped with first rounding, the slot hole edge of bottom plate sets up the second and pastes limit band steel, second pastes limit band steel thickness and bottom plate the same.
Optionally, the trompil board is connected with indulge bulkhead, adjacent stringer, indulge bulkhead level purlin, indulge bulkhead and be equipped with perpendicular purlin with the trompil board junction, the trompil board height is less than perpendicular purlin height, be equipped with T type toggle plate between adjacent stringer and the adjacent longitudinal rib that meets thereof, T type toggle plate size is the same with adjacent stringer size.
Optionally, the thickness of the perforated plate is the same as the thickness of the embedded thick plate in the embedded thick plate reinforcement structure, a hole is formed in the middle of the perforated plate, second rounding is formed in four corners of the hole of the perforated plate, first edge-bonding flat steel is arranged at the edge of the hole, and the thickness of the first edge-bonding flat steel is the same as the thickness of the perforated plate.
In summary, the invention has at least one of the following advantages:
1. the invention eliminates the root of the existing door hole structure, directly seats the channel opening on the deck, and improves the smoothness and applicability of the large channel;
2. the local box girder is formed by combining the embedded thick plate reinforcement structure and the transverse weak plate reinforcement structure on the strong beam, the requirement on structural strength can be met after the root is canceled, and the stress concentration of the part is reduced.
Drawings
FIG. 1 is a schematic view of a conventional access door aperture structure;
FIG. 2 is a schematic view of an open cell structure of a passageway according to the present invention;
FIG. 3 is a schematic cross-sectional view of the double-sided vertical stiffener at A-A of FIG. 2;
FIG. 4 is a schematic view of another connection structure of the strong beam;
FIG. 5 is a schematic view of the transverse weak plate reinforcement structure of the present invention;
FIG. 6 is a schematic cross-sectional view at C-C of FIG. 5;
FIG. 7 is a schematic cross-sectional view of the bottom panel at B-B of FIG. 5;
in the figure: 1. a double deck; 2. leaving roots; 3. the end part of the strong beam is enlarged; 4. toe end region; 5. edge bonding reinforcement; 6. bilateral vertical reinforcing ribs; 7. a strong beam; 8. a thick plate embedded reinforcement structure; 9. a longitudinal bulkhead; 10. adjacent stringers; 11. horizontal trusses of longitudinal bulkheads; 12. heel and board supplementing; 13. vertical ribs; 14. longitudinal ribs; 15. a supporting enclosure wall; 16. a channel is perforated; 17. a bottom panel; 18. an aperture plate; 19. vertical trusses; 20. connecting longitudinal bones; 21. t-shaped toggle plates; 22. a second rounding; 23. the first welt flat steel; 24. an end portion amplifying structure; 25. a first radius; 26. and the second welting flat steel.
Detailed Description
The invention is described in further detail below with reference to fig. 1-7.
The invention discloses a large-span double deck supporting enclosure wall open pore type and a reinforcing structure, referring to fig. 2, the large-span double deck supporting enclosure wall open pore type and reinforcing structure comprises a longitudinal bulkhead 9, an adjacent stringer 10, a channel open pore 16, a double deck 1, a transverse supporting enclosure wall, a strong beam 7 and a transverse weak plate reinforcing structure, wherein the double deck 1 comprises an upper deck and a lower deck, the transverse supporting enclosure wall is arranged between the lower deck and the upper deck, the channel open pore 16 is arranged on the transverse supporting enclosure wall, the bottom of the channel open pore 16 is connected with the lower deck, the strong beam 7 is arranged below the lower deck, the end part of the strong beam 7 is provided with a thick plate reinforcing structure 8, the thick plate reinforcing structure 8 is arranged below the channel open pore 16, the longitudinal bulkhead 9 and the adjacent stringer 10 are arranged below the lower deck and are respectively arranged on two sides of the channel open pore 16, the transverse weak plate reinforcing structure is arranged on two sides of the strong beam 7 along the ship length direction and is connected with the longitudinal bulkhead 9 and the adjacent stringer 10, and a plurality of longitudinal stringers or vertical ribs are uniformly arranged on the double deck 1 and the channel open pore 16;
wherein, the toe end area 4 at the bottom of the channel opening 16 is subjected to full-welding penetration treatment, the toe end is subjected to rounding treatment, the radius is R8-R10, the side edge of the channel opening 16 is subjected to welt reinforcement 5 treatment, and referring to fig. 3, bilateral vertical reinforcing ribs 6 are arranged at positions of 100-150 mm on two sides of the channel opening 16, the connection part of the bilateral vertical reinforcing ribs 6 and the lower deck is subjected to end amplification treatment, and the amplified toe end and rounding radius of the bilateral vertical reinforcing ribs 6 are both twice the width of the bilateral vertical reinforcing ribs 6.
In a further embodiment, referring to fig. 4 and 6, a longitudinal bulkhead horizontal truss 11 is arranged at the lower end of a longitudinal bulkhead 9, a thick plate embedding reinforcement structure 8 comprises thick plates and rib plates, the thick plates are arranged below a channel opening 16, the rib plates are arranged on the thick plates, a reinforcing beam 7 is connected with the longitudinal bulkhead 9, an adjacent longitudinal truss 10 and the longitudinal bulkhead horizontal truss 11 through the thick plate embedding reinforcement structure 8, a supporting surrounding wall 15 or a strong vertical truss is arranged on one side of the longitudinal bulkhead 9, where the thick plate embedding reinforcement structure 8 is not arranged, a heel supplementing plate 12 is arranged on one side of the thick plate embedding reinforcement structure 8, the heel supplementing plate 12 is arranged on a longitudinal rib below a lower deck, vertical ribs 13 are made of flat steel, the thickness of the lower deck is not smaller than that of the vertical ribs 13, longitudinal ribs 14 are arranged below the lower deck, the longitudinal ribs 14 are arranged on two sides of the heel supplementing plate 12, the longitudinal ribs 14 are made of flat steel, the distance between the longitudinal ribs 14 and the end of the end region 4 is 20-50mm, and the thickness of the longitudinal ribs 14 are not smaller than that of the longitudinal ribs 14 are arranged at the position of the lower deck;
if the rounded end of the lower end of the passage opening 16 is located exactly at the longitudinal bone or in the range of 20-50mm from the longitudinal bone, as shown in fig. 4, the stress relief longitudinal ribs 14 may not be provided.
In a further embodiment, referring to fig. 5 and 7, the transverse weak plate reinforcement structure includes an opening plate 18 and a bottom plate 17, the bottom plate 17 is Lv Zixing, two long holes are formed in the bottom plate 17, the bottom plate 17 is arranged along the ship length direction, the opening plate 18 is two and is respectively arranged at two sides of the embedded thick plate reinforcement structure 8, the opening plate 18 is connected to two side plates of the bottom plate 17, the lower end of the embedded thick plate reinforcement structure 8 is connected to the middle plate of the bottom plate 17, two ends of the bottom plate 17 are respectively welded with the adjacent stringers 10 and the longitudinal bulkheads 9, an end amplification structure 24 is arranged at the end of the bottom plate 17, first rounding 25 is arranged at four corners of the long holes in the bottom plate 17, a second edge-pasting flat steel 26 is arranged at the edge of the long holes of the bottom plate 17, and the thickness of the second edge-pasting flat steel 26 is the same as that of the bottom plate 17.
In a further embodiment, the perforated plate 18 is connected with the longitudinal bulkhead 9, the adjacent stringers 10 and the longitudinal bulkhead horizontal stringers 11, vertical stringers 19 are arranged at the joint of the longitudinal bulkhead 9 and the perforated plate 18, the height of the perforated plate 18 is smaller than that of the vertical stringers 19, T-shaped toggle plates 21 are arranged between the adjacent stringers 10 and adjacent connected stringers 20, the size of the T-shaped toggle plates 21 is the same as that of the adjacent stringers 10, the thickness of the perforated plate 18 is the same as that of the thick plate embedded in the thick plate reinforcement structure 8, holes are arranged in the middle of the perforated plate 18, second round-down circles 22 are arranged at four corners of the holes of the perforated plate 18, first welt flat steels 23 are arranged at the edges of the holes, and the thickness of the first welt flat steels 23 is the same as that of the perforated plate 18.
In summary, the invention eliminates the root leaving of the existing door hole structure, directly seats the channel opening 16 on the deck, improves the smoothness and applicability of the large channel, and combines the thick plate embedded reinforcement structure 8 and the transverse weak plate reinforcement structure on the strong beam 7 into a local box beam, thereby reducing the stress concentration of the part and meeting the structural strength requirement after the root leaving is eliminated.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a double-deck support enclosure wall trompil pattern of large-span and additional strengthening, includes longitudinal bulkhead (9) and adjacent stringer (10), its characterized in that still includes passageway trompil (16), double deck (1), transversely supports enclosure wall, strong crossbeam (7) and horizontal weak plate reinforcement structure, double deck (1) include deck and lower deck, horizontal support enclosure wall is established between lower deck and upper deck, passageway trompil (16) are established on horizontal support enclosure wall, just passageway trompil (16) bottom is connected with lower deck, strong crossbeam (7) are established in lower deck below, strong crossbeam (7) tip is equipped with inlays thick plate reinforcement structure (8), inlay thick plate reinforcement structure (8) are located passageway trompil (16) below, longitudinal bulkhead (9) and adjacent stringer (10) are established in lower deck below and are located passageway trompil (16) both sides respectively, horizontal weak plate reinforcement structure sets up in longitudinal bulkhead (7) both sides and with longitudinal bulkhead (9) and adjacent stringer (10) are connected, double deck (1) and even setting up or muscle more.
2. The open-pore type and reinforcing structure for a long-span double deck supporting enclosure wall according to claim 1, wherein the toe end area (4) at the bottom of the channel opening (16) is subjected to full-penetration treatment, the toe end is subjected to rounding treatment, the side edges of the channel opening (16) are subjected to welt reinforcement (5), bilateral vertical reinforcing ribs (6) are arranged at the positions of 100-150 mm on two sides of the channel opening (16), the joint of the bilateral vertical reinforcing ribs (6) and the lower deck is subjected to end amplification treatment, and the amplified toe ends and rounding radius of the bilateral vertical reinforcing ribs (6) are twice the width of the bilateral vertical reinforcing ribs (6).
3. The large-span double deck support enclosure wall open pore type and reinforcing structure according to claim 1, wherein the lower end of the longitudinal bulkhead (9) is provided with a longitudinal bulkhead horizontal truss (11), the embedded thick plate reinforcement structure (8) comprises embedded thick plates and rib plates, the embedded thick plates are arranged below the channel open pore (16), the rib plates are arranged on the embedded thick plates, and the strong cross beam (7) is connected with the longitudinal bulkhead (9), the adjacent longitudinal trusses (10) and the longitudinal bulkhead horizontal truss (11) through the embedded thick plate reinforcement structure (8).
4. A large span double deck supporting enclosure wall open pore type and reinforcing structure according to claim 3, characterized in that, one side of the embedded thick plate reinforcing structure (8) is provided with a heel compensating plate (12), the heel compensating plate (12) is arranged on the longitudinal bone below the lower deck, the root compensating plate (12) is provided with a vertical rib (13), the vertical rib (13) is flat steel, and the thickness is not less than the thickness of the lower deck at the position where the vertical rib (13) is located.
5. The open-pore type and reinforcing structure for a long-span double deck supporting enclosure wall according to claim 4, wherein a longitudinal rib (14) is arranged below the lower deck, the longitudinal rib (14) is arranged on two sides of the heel supplementing plate (12), the longitudinal rib (14) is made of flat steel, the distance between the longitudinal rib (14) and the toe end of the toe end area (4) is 20-50mm, and the thickness of the longitudinal rib (14) is not smaller than the thickness of the lower deck at the position where the longitudinal rib (14) is arranged.
6. A long span double deck supporting enclosure wall open cell type and reinforcement structure according to claim 3, characterized in that the side of the longitudinal bulkheads (9) not provided with the embedded thick plate reinforcement structure (8) is provided with supporting enclosure walls (15) or strong vertical girders.
7. A long span double deck supporting enclosure wall open pore type and reinforcing structure according to claim 3, characterized in that the transverse weak plate reinforcing structure comprises an open pore plate (18) and a bottom plate (17), the bottom plate (17) is a letter-shaped plate, two long holes are arranged on the bottom plate (17), the bottom plate (17) is arranged along the ship length direction, the open pore plate (18) is provided with two holes, which are respectively arranged at two sides of the embedded plate reinforcing structure (8), the open pore plate (18) is connected to two side plates of the bottom plate (17), and the lower end of the embedded plate reinforcing structure (8) is connected to the middle plate of the bottom plate (17).
8. The large-span double deck supporting enclosure wall open-pore type and reinforcing structure according to claim 7, wherein two ends of the bottom panel (17) are welded with adjacent stringers (10) and longitudinal bulkheads (9) respectively, and the end parts of the bottom panel (17) are provided with end part enlarging structures (24), four corners of long holes on the bottom panel (17) are provided with first rounding (25), the long hole edges of the bottom panel (17) are provided with second welting flat steel (26), and the thickness of the second welting flat steel (26) is the same as that of the bottom panel (17).
9. The large-span double deck supporting enclosure wall open-pore type and reinforcing structure according to claim 7, wherein the open-pore plate (18) is connected with a longitudinal bulkhead (9), an adjacent longitudinal girder (10) and a longitudinal bulkhead horizontal girder (11), a vertical girder (19) is arranged at the joint of the longitudinal bulkhead (9) and the open-pore plate (18), the height of the open-pore plate (18) is smaller than that of the vertical girder (19), a T-shaped elbow plate (21) is arranged between the adjacent longitudinal girder (10) and the adjacent connected longitudinal girder (20), and the size of the T-shaped elbow plate (21) is the same as that of the adjacent longitudinal girder (10).
10. The large-span double deck support enclosure wall open-pore type and reinforcing structure according to claim 9, wherein the thickness of the open-pore plate (18) is the same as the thickness of the embedded thick plate in the embedded thick plate reinforcement structure (8), a hole is arranged in the middle of the open-pore plate (18), the four corners of the hole of the open-pore plate (18) are provided with second rounds (22), the edge of the hole is provided with a first welting flat steel (23), and the thickness of the first welting flat steel (23) is the same as the thickness of the open-pore plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311444891.5A CN117533455A (en) | 2023-11-01 | 2023-11-01 | Open pore type and reinforcing structure of large-span double-deck supporting surrounding wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311444891.5A CN117533455A (en) | 2023-11-01 | 2023-11-01 | Open pore type and reinforcing structure of large-span double-deck supporting surrounding wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117533455A true CN117533455A (en) | 2024-02-09 |
Family
ID=89783220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311444891.5A Pending CN117533455A (en) | 2023-11-01 | 2023-11-01 | Open pore type and reinforcing structure of large-span double-deck supporting surrounding wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117533455A (en) |
-
2023
- 2023-11-01 CN CN202311444891.5A patent/CN117533455A/en active Pending
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