CN111791982A - Large-scale ship structure becomes high roof beam - Google Patents
Large-scale ship structure becomes high roof beam Download PDFInfo
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- CN111791982A CN111791982A CN202010826158.XA CN202010826158A CN111791982A CN 111791982 A CN111791982 A CN 111791982A CN 202010826158 A CN202010826158 A CN 202010826158A CN 111791982 A CN111791982 A CN 111791982A
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- suspension mechanism
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- bearing
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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- Ocean & Marine Engineering (AREA)
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Abstract
The invention discloses a large ship structure variable-height beam, which comprises a strong cross beam, wherein two bearing mechanisms are symmetrically and fixedly arranged at the bottom end of the strong cross beam, a first suspension mechanism is clamped and arranged on the two bearing mechanisms together, a single-hole wire clamp is clamped and arranged at the top end of the first suspension mechanism, a double-hole wire clamp is clamped and arranged at the top end of the first suspension mechanism, four support rods are symmetrically welded on the upper surface of the first suspension mechanism, a second suspension mechanism is arranged on the two bearing mechanisms together in a sliding manner, the second suspension mechanism is erected at the top ends of the four support rods, two clamping mechanisms are symmetrically clamped and arranged on the second suspension mechanism, and a damping mechanism is arranged at the top ends of the two clamping mechanisms respectively, so that the large ship structure variable-height: the web structure that first suspension mechanism and second suspension mechanism constitute can carry out lift adjustment, increases the interval between web structure and the mail steamer bottom plate then, is convenient for assemble wind channel, pipeline and cable, has improved the convenience of its construction greatly.
Description
Technical Field
The invention relates to a variable-height beam, in particular to a large-scale ship structure variable-height beam, and belongs to the technical field of deck transverse and longitudinal strength structure variable-height beams of large-scale mail steamer.
Background
At present, when the conventional ship type deck structure strong beam is designed, the deck structure strong beam is mainly considered to meet the requirements of the total longitudinal strength and the local strength of a ship body beam, the arrangement requirements of various air channels, pipelines, cables and the like are less considered, the structural change sorghum is less considered in the design process of the conventional ship structure, a large mail steamer mainly takes living and entertainment, various air channels, pipelines and cables on the ship are arranged in a large mode, and the requirement on the utilization rate of limited space is extremely high.
Traditional ship type deck structure strong beam can't carry out lift adjustment in actual use, and the interval between web structure and the mail steamer bottom plate is little, and the space is crowded, has hindered the installation operation to wind channel, pipeline and cable, greatly reduced the convenience of its construction, to this, need design a large-scale ship structure change high beam.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a large-scale ship structure heightening beam, which effectively solves the problems that the distance between a web plate structure and a bottom plate of a mail steamer is small and the space is narrow, the installation operation is hindered, and the construction convenience is reduced in the prior art.
The technical scheme for realizing the purpose is as follows:
the invention relates to a variable-height beam of a large-scale ship structure, which comprises a strong cross beam, wherein two bearing mechanisms are symmetrically and fixedly arranged at the bottom end of the strong cross beam, a first suspension mechanism is clamped and arranged on the two bearing mechanisms together, the first suspension mechanism is fixed below the strong cross beam through a plurality of fixing screw threads, a single-hole wire clamp is clamped and arranged at the top end of the first suspension mechanism, a double-hole wire clamp is clamped and arranged at one side of the single-hole wire clamp at the top end of the first suspension mechanism, four support rods are symmetrically welded on the upper surface of the first suspension mechanism, a second suspension mechanism is jointly and slidably arranged on the two bearing mechanisms, the second suspension mechanism is positioned between the strong cross beam and the first suspension mechanism, the second suspension mechanism is erected at the top ends of the four support rods, and two clamping mechanisms are symmetrically clamped and arranged on the second suspension mechanism, two equal fixed mounting in fixture's top has a damper, just two damper's top all with the lower surface in close contact with of strong crossbeam.
As a preferred technical solution of the present invention, the second suspension mechanism includes two sliding seats symmetrically arranged, a second supporting plate is fixedly mounted between the two sliding seats, two T-shaped sliding blocks are symmetrically and fixedly mounted on the outer walls of the two sliding seats on the side away from the second supporting plate, and the four T-shaped sliding blocks are inserted into and slidably connected with the bearing plates which are arranged in a matching manner.
As a preferred technical scheme of the invention, each of the two clamping mechanisms comprises a supporting seat and a limit seat which is matched with the supporting seat, a bayonet is formed at the bottom end of each of the two supporting seats, the two bayonets are clamped and connected with the second supporting plate, a semi-arc groove is formed at the top end of each of the two supporting seats, two side plates are symmetrically and fixedly mounted on the two supporting seats, and the four side plates are fixed on the upper surface of the second supporting plate through four fixing screws.
As a preferred technical scheme of the invention, four threaded columns are symmetrically and fixedly installed at the top ends of two supporting seats, a limiting seat is movably sleeved on each of the four threaded columns arranged at the top end of the same supporting seat, a semi-arc groove is dug at the bottom end of each of the two limiting seats, and a limiting nut is threadedly installed on each of the plurality of threaded columns and above the matched limiting seat.
As a preferred technical scheme of the invention, each of the two bearing mechanisms comprises a base, a bearing plate is fixedly mounted at the top end of each of the two bases, a top plate is fixedly mounted at the top end of each of the two bearing plates, two T-shaped sliding grooves are symmetrically formed in the opposite inner side walls of each of the two bearing plates, and the four T-shaped sliding grooves are in sliding connection with T-shaped sliding blocks which are arranged in a matched mode.
As a preferred technical scheme of the invention, the first suspension mechanism comprises two symmetrically arranged clamping seats, a first supporting plate is fixedly mounted between the two clamping seats, a double-hole wire clamp and a single-hole wire clamp are mounted on the top end of the first supporting plate through threads, a clamping groove is formed in one end of each of the two clamping seats far away from the first supporting plate, and the two clamping grooves are in sliding connection with bearing plates which are arranged in a matched mode.
As a preferred technical solution of the present invention, a limiting groove is cut at the top end of the first supporting plate, and the bottom ends of the two-hole line card and the single-hole line card are inserted into the limiting groove and are connected with the limiting groove in a clamping manner.
As a preferred technical scheme of the invention, the two damping mechanisms respectively comprise two rubber plates which are symmetrically arranged, and a plurality of damping springs are fixedly arranged between the two rubber plates which are matched with each other.
The invention has the beneficial effects that:
1. this it is provided with first suspension mechanism and second suspension mechanism to uprise roof beam, and the web structure that first suspension mechanism and second suspension mechanism constitute all with bearing mechanism sliding connection, be convenient for carry out lift adjustment to first suspension mechanism and second suspension mechanism, let the wind channel of the installation of the two top then, pipeline and cable are close to strong crossbeam more, and increase the interval between web structure and the mail steamer bottom plate, it is crowded to avoid the mail steamer inner space, be difficult to all kinds of wind channels, pipeline and cable are installed, under the condition that improves space utilization, the convenience of site operation has been improved greatly.
2. This become high roof beam block and install diplopore ply-yarn drill and haplopore ply-yarn drill on first layer board, through haplopore ply-yarn drill and diplopore ply-yarn drill, can make up the ply-yarn drill that forms three holes or porous structure, be convenient for according to the quantity of cable, make up the installation to the ply-yarn drill for bunch is carried out to the cable of different quantity, the fixture of block installation on the second layer board can make up the installation moreover, can assemble according to the quantity of wind channel and pipeline, the flexibility of its assembly has been improved greatly.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a second suspension mechanism of the present invention;
FIG. 3 is a schematic view of the clamping mechanism of the present invention;
FIG. 4 is a schematic structural view of the load bearing mechanism of the present invention;
FIG. 5 is a schematic diagram of a first suspension mechanism of the present invention;
FIG. 6 is a schematic view of the shock absorbing mechanism of the present invention;
FIG. 7 is a schematic view of the connection between the carriage and the bearing plate according to the present invention.
In the figure: 1. a strong cross beam; 2. a load bearing mechanism; 21. a base; 22. a bearing plate; 23. a T-shaped chute; 24. a top plate; 3. a support bar; 4. a dual-hole wire clamp; 5. a single-hole wire clamp; 6. a first suspension mechanism; 61. a first pallet; 62. a limiting groove; 63. a card holder; 64. a card slot; 7. a second suspension mechanism; 71. a slide base; 72. a T-shaped slider; 73. a second pallet; 8. a clamping mechanism; 81. a supporting seat; 82. a bayonet; 83. a threaded post; 84. a limiting seat; 85. a semi-arc shaped groove; 86. a side plate; 9. a damping mechanism; 91. a rubber plate; 92. a damping spring; 10. fixing screws; 11. and a limiting nut.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1-7, the invention provides a variable-height beam of a large-scale ship structure, which comprises a strong beam 1, wherein two bearing mechanisms 2 are symmetrically and fixedly arranged at the bottom end of the strong beam 1, a first suspension mechanism 6 is clamped and arranged on the two bearing mechanisms 2 together, the first suspension mechanism 6 is fixed below the strong beam 1 through a plurality of fixing screws 10 in a threaded manner, a single-hole wire clamp 5 is clamped and arranged at the top end of the first suspension mechanism 6, a double-hole wire clamp 4 is clamped and arranged at one side of the single-hole wire clamp 5 at the top end of the first suspension mechanism 6, four support rods 3 are symmetrically welded on the upper surface of the first suspension mechanism 6, a second suspension mechanism 7 is slidingly arranged on the two bearing mechanisms 2 together, the second suspension mechanism 7 is arranged between the strong beam 1 and the first suspension mechanism 6, the second suspension mechanism 7 is erected at the top ends of the four support rods 3, two clamping mechanisms 8 are symmetrically clamped and arranged on the second suspension mechanism 7, the top ends of the two clamping mechanisms 8 are fixedly provided with a damping mechanism 9, the top ends of the two damping mechanisms 9 are in close contact with the lower surface of the strong beam 1, the first suspension mechanism 6 and the second suspension mechanism 7 are movably connected with the two bearing mechanisms 2, so that the first suspension mechanism 6 and the second suspension mechanism 7 can be conveniently lifted and adjusted, after the height is adjusted to a specified height, the first suspension mechanism 6 and the second suspension mechanism 7 are fixed through a fixing screw 10, the first suspension mechanism 6 and the second suspension mechanism 7 are firmly arranged on the two bearing mechanisms 2, under the condition that the height of the strong beam 1 is unchanged, a web plate consisting of the first suspension mechanism 6 and the second suspension mechanism 7 is lifted and adjusted, an air duct, a pipeline and a cable in the large mail steamer can be erected at a position close to the strong beam 1, the distance between the web plate and the mail steamer bottom plate is increased, and then the space between the web plate and the mail steamer bottom plate is maximized, the internal space of the mail steamer is prevented from being crowded, various air ducts, pipelines and cables are difficult to install, and the convenience of site construction is greatly improved under the condition of improving the space utilization rate.
Wherein, second suspension mechanism 7 includes that two are the slide 71 of symmetry setting, common fixed mounting has second layer board 73 between the relative inner wall of two slide 71, two slide 71 keep away from on the outer wall of second layer board 73 one side equal symmetry fixed mounting have two T type sliders 72, and four T type sliders 72 all insert in the bearing plate 22 that the phase-match set up, and rather than sliding connection, through the sliding connection between slide 71 and the bearing plate 22, be convenient for adjust the height of second suspension mechanism 7.
Wherein, two fixture 8 all include the spacing seat 84 that a supporting seat 81 and a phase-match set up, a bayonet socket 82 has all been dug to two supporting seat 81's bottom, and two bayonet sockets 82 all are connected with second layer board 73 block, a semi-arc groove 85 has all been dug on two supporting seat 81's top, symmetrical fixed mounting has two curb plates 86 on two supporting seat 81, and four curb plates 86 all are fixed in the upper surface of second layer board 73 through four fixed screw 10, through supporting seat 81 and spacing seat 84 to the wind channel, the pipeline carries out the centre gripping fixedly, improve the wind channel, fastness after the pipeline mounting.
Wherein, the equal symmetrical fixed mounting in top of two supporting seats 81 has four screw thread posts 83, it has one spacing seat 84 to be located all movable cup joint on four screw thread posts 83 that same supporting seat 81 top set up, a semi-arc groove 85 has all been dug to the bottom of two spacing seats 84, a stop nut 11 is installed to the equal screw thread in top that just is located the spacing seat 84 of phase-match setting on a plurality of screw thread posts 83, it is spacing on screw thread post 83 with spacing seat 84 through stop nut 11, ensure spacing seat 84 and supporting seat 81 to the wind channel, the pipeline carries out inseparable centre gripping.
Wherein, two bearing mechanism 2 all include a base 21, the equal fixed mounting in top of two bases 21 has a bearing plate 22, the equal fixed mounting in top of two bearing plates 22 has a roof 24, equal symmetry is excavated on the relative inside wall of two bearing plates 22 has two T type spouts 23, and four T type spouts 23 all with the T type slider 72 sliding connection that the phase-match set up, through the sliding connection between T type slider 72 and the T type spout 23, be convenient for carry out lift adjustment to second layer board 73, and can prevent slide 71 and bearing plate 22 from breaking away from the connection.
Wherein, first suspension mechanism 6 includes two cassette 63 that are the symmetry and set up, common fixed mounting has first layer board 61 between two cassette 63, and the top screw thread of first layer board 61 installs diplopore ply-yarn drill 4 and haplopore ply-yarn drill 5, a draw-in groove 64 has all been dug to the one end that first layer board 61 was kept away from to two cassette 63, and two draw-in grooves 64 all with bearing plate 22 sliding connection that the phase-match set up, can carry on spacingly through haplopore ply-yarn drill 5 and diplopore ply-yarn drill 4 to the cable, play the bunch effect, and haplopore ply-yarn drill 5 and diplopore ply-yarn drill 4 can the independent assortment, form three hole or porous structure's ply-yarn.
Wherein, the top of first layer board 61 is excavated spacing groove 62, and the bottom of diplopore ply-yarn drill 4 and haplopore ply-yarn drill 5 all inserts in spacing groove 62 and rather than the block is connected, is connected through the block between spacing groove 62 and diplopore ply-yarn drill 4, the haplopore ply-yarn drill 5, ensures that the ply-yarn drill neatly arranges on first layer board 61.
Wherein, two damper 9 all include two rubber slabs 91 that are the symmetry and set up, and equal fixed mounting has a plurality of damping spring 92 between two rubber slabs 91 that the phase-match set up, and the vibrations that can deck the top through rubber slab 91 and damping spring 92 produce cushion, improve the shock attenuation effect that becomes interior web of roof beam.
Specifically, when the invention is used, firstly, the supporting seat 81 is installed on the second supporting plate 73 through the fixing screw 10, the connection tightness between the supporting seat 81 and the second supporting plate 73 is improved through the clamping connection between the bayonet 82 and the second supporting plate 73, then, the air duct or the pipeline is placed in the half-arc groove 85 cut at the top end of the supporting seat 81, then, the limiting seat 84 is sleeved on the threaded column 83, the limiting nut 11 is rotated to ensure that the air duct or the pipeline is clamped and fixed by the limiting seat 84 and the supporting seat 81, after the clamping of the air duct or the pipeline is completed, the cable passes through the double-hole line card 4 or the single-hole line card 5, through the sliding connection between the bayonet 82 and the bearing plate 22, the first suspension mechanism 6 can be pushed upwards, because the sliding seat 71 is arranged at the top end of the supporting rod 3, and the supporting rod 3 is welded on the upper surface of the first supporting plate 61, at this time, through the sliding connection between the T-shaped, the second suspension mechanism 7 can move upwards along with the first suspension mechanism 6, after the damping mechanism 9 is contacted with the strong cross beam 1, the clamping seat 63 is fixed on the bearing plate 22 through the fixing screw 10, then the first suspension mechanism 6 is fixed on the two bearing mechanisms 2, the second suspension mechanism 7 can be fixed on the two bearing mechanisms 2, the air duct and the pipeline are clamped and fixed through the clamping mechanism 8 and are orderly arranged, the cables are bundled through the single-hole line clamp 5 and the double-hole line clamp 4 and are orderly arranged, the air duct, the pipeline and the cable are prevented from being disorderly arranged, the web structure formed by the first suspension mechanism 6 and the second suspension mechanism 7 can be adjusted in a lifting way, the air duct, the pipeline and the cable are effectively closer to the strong cross beam 1, the distance between the web structure and the mail steamer bottom plate is increased, and the space between the web and the mail steamer bottom plate is maximized, avoid the mail steamer inner space crowded, be difficult to all kinds of wind channels, pipeline and cable are installed, improve under space utilization's the condition, the convenience of site operation has been improved greatly, and simultaneously, the block is connected between fixture 8 and the second layer board 73, and consolidate through fixed screw 10, convenient to detach installs, can carry out the aggregate erection to fixture 8, according to the wind channel, the quantity of pipeline, the fixture 8 of installation matching quantity, single-hole ply-yarn drill 5 and diplopore ply-yarn drill 4 can make up the ply-yarn drill that forms three holes or porous structure, a wire harness is carried out to the cable of different quantity, the flexibility of its assembly has been improved greatly.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (8)
1. The utility model provides a large-scale boats and ships structure becomes high beam, includes strong crossbeam (1), its characterized in that, the bottom symmetry fixed mounting of strong crossbeam (1) has two bearing mechanism (2), two first suspension mechanism (6) are installed to common block on bearing mechanism (2), just first suspension mechanism (6) are fixed in the below of strong crossbeam (1) through a plurality of fixed screw (10) screw thread, haplopore ply-yarn drill (5) are installed to the top block of first suspension mechanism (6), diplopore ply-yarn drill (4) are installed to the top of first suspension mechanism (6) and the block that is located one side of haplopore ply-yarn drill (5), the upper surface symmetry welding of first suspension mechanism (6) has four bracing pieces (3), two bearing mechanism (2) go up common slidable mounting has second suspension mechanism (7), just second suspension mechanism (7) are located the position between strong crossbeam (1) and first suspension mechanism (6), the top of four bracing pieces (3) is erect in second suspension mechanism (7), two fixture (8), two are installed to the symmetry block on second suspension mechanism (7) the equal fixed mounting in top of fixture (8) has a damper (9), and two the top of damper (9) all with the lower surface in close contact with of strong crossbeam (1).
2. The large ship structure heightening beam according to claim 1, characterized in that the second suspension mechanism (7) comprises two symmetrically arranged sliding seats (71), a second supporting plate (73) is fixedly arranged between the two sliding seats (71) and the opposite inner walls, two T-shaped sliding blocks (72) are symmetrically and fixedly arranged on the outer walls of the two sliding seats (71) far away from the second supporting plate (73), and the four T-shaped sliding blocks (72) are inserted into and slidably connected with the bearing plates (22) which are arranged in a matching manner.
3. The large-scale ship structure variable-height beam as claimed in claim 1, wherein each of the two clamping mechanisms (8) comprises a supporting seat (81) and a matched limiting seat (84), a bayonet (82) is cut at the bottom end of each of the two supporting seats (81), each of the two bayonets (82) is connected with the second supporting plate (73) in a clamping manner, a semi-arc-shaped groove (85) is cut at the top end of each of the two supporting seats (81), two side plates (86) are symmetrically and fixedly mounted on each of the two supporting seats (81), and each of the four side plates (86) is fixed on the upper surface of the second supporting plate (73) through four fixing screws (10).
4. The variable-height beam for the large-scale ship structure according to claim 3, wherein four threaded columns (83) are symmetrically and fixedly mounted at the top ends of the two supporting seats (81), a limiting seat (84) is movably sleeved on each of the four threaded columns (83) arranged at the top end of the same supporting seat (81), a semi-arc-shaped groove (85) is formed at the bottom end of each of the two limiting seats (84), and a limiting nut (11) is threadedly mounted on each of the plurality of threaded columns (83) and above the corresponding limiting seat (84).
5. The large ship structure heightening beam as recited in claim 1, wherein each of the two bearing mechanisms (2) comprises a base (21), a bearing plate (22) is fixedly mounted at the top end of each of the two bases (21), a top plate (24) is fixedly mounted at the top end of each of the two bearing plates (22), two T-shaped sliding grooves (23) are symmetrically formed in the opposite inner side walls of each of the two bearing plates (22), and the four T-shaped sliding grooves (23) are slidably connected with T-shaped sliding blocks (72) which are arranged in a matching manner.
6. The large-scale ship structure variable height beam according to claim 1, wherein the first suspension mechanism (6) comprises two symmetrically arranged clamping seats (63), a first supporting plate (61) is fixedly mounted between the two clamping seats (63), a double-hole line card (4) and a single-hole line card (5) are mounted at the top end of the first supporting plate (61) in a threaded manner, one clamping groove (64) is drilled at one end of each of the two clamping seats (63) far away from the first supporting plate (61), and the two clamping grooves (64) are slidably connected with the bearing plate (22) which is arranged in a matching manner.
7. A large ship structure varying height beam according to claim 6, characterized in that the top end of the first supporting plate (61) is provided with a limiting groove (62), and the bottom ends of the double-hole line card (4) and the single-hole line card (5) are inserted into the limiting groove (62) and are connected with the limiting groove in a clamping manner.
8. The large ship structure heightening beam as recited in claim 1, wherein each of the two damping mechanisms (9) comprises two symmetrically arranged rubber plates (91), and a plurality of damping springs (92) are fixedly mounted between the two rubber plates (91) which are matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826158.XA CN111791982B (en) | 2020-08-17 | 2020-08-17 | Large-scale ship structure becomes high roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826158.XA CN111791982B (en) | 2020-08-17 | 2020-08-17 | Large-scale ship structure becomes high roof beam |
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| Publication Number | Publication Date |
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| CN111791982A true CN111791982A (en) | 2020-10-20 |
| CN111791982B CN111791982B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010826158.XA Active CN111791982B (en) | 2020-08-17 | 2020-08-17 | Large-scale ship structure becomes high roof beam |
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| CN (1) | CN111791982B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115556868A (en) * | 2022-11-04 | 2023-01-03 | 沪东中华造船(集团)有限公司 | Design method for T-shaped section variable-height beam structure |
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| CN108791755A (en) * | 2018-08-20 | 2018-11-13 | 山东哈船海洋装备制造有限公司 | A kind of marine evacuation system peculiar to vessel |
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| CN210281999U (en) * | 2019-05-31 | 2020-04-10 | 广东盛逸建设项目管理有限公司 | Pipeline installation strutting arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100033742A (en) * | 2008-09-22 | 2010-03-31 | 에스티엑스조선해양 주식회사 | A jig for installing an upper deck penetrating pipe |
| CN106043592A (en) * | 2016-07-29 | 2016-10-26 | 扬帆集团股份有限公司 | Automatic supporting device for removable deck |
| CN108791755A (en) * | 2018-08-20 | 2018-11-13 | 山东哈船海洋装备制造有限公司 | A kind of marine evacuation system peculiar to vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115556868A (en) * | 2022-11-04 | 2023-01-03 | 沪东中华造船(集团)有限公司 | Design method for T-shaped section variable-height beam structure |
| CN115556868B (en) * | 2022-11-04 | 2024-06-11 | 沪东中华造船(集团)有限公司 | T-section variable-height beam structure design method |
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| CN111791982B (en) | 2021-07-23 |
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