CN217048950U - Groove-shaped bulkhead with variable groove-shaped spacing - Google Patents
Groove-shaped bulkhead with variable groove-shaped spacing Download PDFInfo
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- CN217048950U CN217048950U CN202123070603.3U CN202123070603U CN217048950U CN 217048950 U CN217048950 U CN 217048950U CN 202123070603 U CN202123070603 U CN 202123070603U CN 217048950 U CN217048950 U CN 217048950U
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Abstract
The utility model relates to a groove-shaped bulkhead with variable groove-shaped spacing, wherein at least one side of the upper side or the lower side of the groove-shaped bulkhead is provided with a pillar; the conventional groove shape width of the groove-shaped bulkhead is s; then, a distance L is set on both sides by taking the position of the opposite groove-shaped bulkhead and the strut as the center 1 The first special groove shape of (1); at the edge of the bulkhead plate which is not connected with the longitudinal bulkhead, the side plate and the adjacent edge supporting steel, the groove shape is set with the distance L 2 A second special groove shape of (1); the groove shape adjacent to the second special groove shape is set to have a distance L 3 The third special groove shape of (2); l is a radical of an alcohol 2 ＜L 1 < S, said L 2 ＜L 3 < S. The utility model disclosesThe problems of buckling and overlarge buckling deformation of the free edge of the tank bulkhead or a region with large pressure load can be effectively solved, and the safety of the ship structure is ensured.
Description
Technical Field
The utility model relates to a boats and ships cargo hold bulkhead especially relates to a flute profile bulkhead of variable flute profile interval, belongs to boats and ships technical field.
Background
Trough-shaped bulkheads are often used on ships for separate cargo holds, living rooms and various cabins. Due to the fact that certain ship types have high requirements on load capacity, the upper deck of the channel-shaped bulkhead can bear heavy cargo pressure, the cargo pressure is too high, the integral pressure bearing of the channel-shaped bulkhead reaches a certain degree, buckling damage of the integral bulkhead can happen, and if a supporting pillar is arranged at the upper part of the channel-shaped bulkhead or the edge of the bulkhead is not connected with other structures, namely a stress concentration position exists, partial buckling damage can happen to part of the bulkhead, and deformation is too large. While generally, to ensure that buckling of the bulkhead plate does not occur, the overall plate thickness is increased or the overall slot pitch is reduced, which greatly increases the material and construction costs.
The trough-shaped bulkhead of the bulk cargo ship is mainly subjected to the lateral pressure of cargo hold cargos, the upper and lower plate edges of the bulkhead are connected with the upper and lower bottom stools, and the external bending moment of the bulkhead is relatively uniform, so that the standard trough-shaped space and trough shape are consistent, the manufacturing time is saved, and the bending damage can be avoided. Due to the large number of applications of the channel-shaped bulkheads in passenger ships, motor ships and luxury cruise ships, the main load borne by the bulkheads is the plate edge compressive stress transmitted by the upper deck, and the distribution of the compressive stress is not uniform and depends on the arrangement and the structural arrangement of the upper deck.
For example, fig. 1 is a structural diagram of a conventionally designed groove-shaped bulkhead of a certain car ro-ro ship, and it can be seen that the groove-shaped spacing of the groove-shaped bulkhead is the same, and the bulkhead plate edges are not connected with the longitudinal bulkhead or the side plate, which is equivalent to two ends fixed support, and two ends of the rib plate are free from constraint, because the upper deck support column transmits pressure and the plate edge stress is concentrated. Local buckling failure can occur in the bulkhead panel under the pillar and near the panel edges that are not connected to the longitudinal strength members.
In order to solve the problem of local buckling of the conventional groove-shaped bulkhead shown in fig. 1, two conventional solutions exist, namely, the overall thickness of the bulkhead plate and the height and width of the groove shape are increased, and the buckling resistance of the groove-shaped bulkhead is improved; another is to reduce the pitch of the overall slotted arrangement. Both of these solutions can improve the buckling resistance of the bulkhead, but both of them can greatly increase the overall structural weight of the bulkhead, and the second method increases the welding length and the welding workload due to the shortened interval of the groove shape. Both of these methods have some drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a become flute profile bulkhead of groove spacing can effectively improve the regional and stress concentration region's of high-pressure stress buckling resistance performance, and less weight and the welding time that increases the bulkhead for under the condition of using lower cost and less welding time, can effectively improve buckling resistance performance, reduce the buckling deformation of pressurized, and then solve the problem of the whole and local buckling of flute profile bulkhead pressurized, guarantee the security of ship structure.
The utility model adopts the following technical proposal:
a variable-groove-shaped-space groove-shaped bulkhead is provided, wherein at least one side of the upper side or the lower side of the groove-shaped bulkhead is provided with a strut 1; the conventional groove shape width of the groove-shaped bulkhead is s; then, a distance L is set on both sides by taking the position of the groove-shaped bulkhead opposite to the strut 1 as the center 1 The first special groove shape of (1); at the edge of the bulkhead plate which is not connected with the longitudinal bulkhead, the side plate and the adjacent edge supporting steel, the groove shape is set with the distance L 2 The second special groove shape of (1); the groove shape adjacent to the second special groove shape is set to have the interval L 3 The third special groove shape of (1); l is a radical of an alcohol 2 ＜L 1 < S, said L 2 ＜L 3 ＜S。
Preferably, said L 1 Is s/2, the L 2 Is s/4, the L 3 Is s/2.
Preferably, the edge support steel is one of flat steel 3, square steel or I-steel.
Preferably, the conventional groove shape is formed by pressing a die; the first special groove shape, the second special groove shape and the third special groove shape are manufactured by welding and are connected with the adjacent groove shapes by welding.
Furthermore, two sides of the first special groove shape are respectively provided with an interval of L 4 S/2 < L 4 ＜S。
Preferably, the spacing of the channels in the edge of the bulkhead plate, adjacent the edge support steel, when the part is not connected to the longitudinal bulkhead, the side plate, must be set to be greater than L for construction reasons 2 When the groove is formed, the groove height of the groove is increased.
Preferably, the strut 1 is provided on the upper side of the channel bulkhead.
Preferably, the channel bulkhead is mounted to a ro-ro passenger ship or a cruise ship.
The beneficial effects of the utility model reside in that:
1) the method is suitable for various passenger roller ships and post ship types with complicated cargo area or functional area division, uneven ballast such as weight structure and the like, improves the local buckling resistance of the groove-shaped bulkhead, can effectively solve the problems of buckling and excessive buckling deformation of the free edge of the groove-shaped bulkhead or a region with large load under pressure, and ensures the safety of the ship structure.
2) The weight and the welding time of the bulkhead are increased slightly, so that the buckling resistance can be effectively improved under the conditions of low cost and short welding time, the buckling deformation under pressure is reduced, the problems of whole and partial buckling of the stressed channel bulkhead are solved, and the safety of the ship structure is ensured.
Drawings
FIG. 1 is a schematic view of the placement and possible buckling of a conventional channel bulkhead.
FIG. 2 is a schematic view of a variable channel spacing channel bulkhead of the present invention.
FIG. 3 is a cross-sectional view of a grooved bulkhead with varied groove spacing.
Fig. 4 is a schematic view of a horizontal cross brace anti-vibration device.
In the figure, 1, a strut, 2, a channel bulkhead, 3, a flat steel, 4, a buckling position and 201, a variable channel spacing position.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one (example for comparison):
with respect to the problem of local buckling of the conventional channel bulkhead shown in fig. 1, it is difficult for the existing conventional design solutions to adequately address this problem. The buckling resistance of the tank-shaped bulkhead is improved by increasing the plate thickness of the integral tank-shaped bulkhead plate and increasing the height and width of the tank shape. But when the integral buckling resistance of the bulkhead is improved, the integral structure quality is greatly increased, the cost is improved, the integral reduction of the groove-shaped space greatly increases the material consumption, increases the welding process and increases the manufacturing time.
Example two:
the embodiment provides the groove-shaped bulkhead with the variable groove-shaped intervals, which can effectively improve the buckling resistance of a high-pressure stress area and a stress concentration area, and can slightly increase the weight and the welding time of the bulkhead, so that the buckling resistance can be effectively improved, the buckling deformation under pressure can be reduced, and the safety of a ship structure can be ensured under the conditions of using lower cost and less welding time.
Referring to fig. 2-3, the channel-shaped bulkhead with variable channel spacing is provided with a strut 1 on at least one of the upper side or the lower side of the channel-shaped bulkhead; the conventional groove shape width of the groove-shaped bulkhead is s; then, a distance L is set to two sides respectively by taking the opposite position of the groove-shaped bulkhead and the pillar 1 as the center 1 The first special groove shape of (1); at the edge of the bulkhead plate which is not connected with the longitudinal bulkhead, the side plate, and the groove shape adjacent to the edge support steel are arranged with the distance L 2 A second special groove shape of (1); the groove shape adjacent to the second special groove shape is set to have the interval L 3 The third special groove shape of (1); l is a radical of an alcohol 2 ＜L 1 < S, said L 2 ＜L 3 ＜S。
The embodiment mainly aims at the situation of local buckling problem of the groove-shaped bulkhead plate under pressure. In this example, as shown in FIG. 2, in a conventional channel-shaped bulkhead, a channel-shaped part is provided at the bottom of the strut and the distance between the channel-shaped part and the two sides is changed to s/2, s being the maximum channel-shaped distance required by the specification, while in the edge of the bulkhead plate not connected to the longitudinal bulkhead and the side plate, the distance between the first channel-shaped part and the flat steel is changed to s/4, and the distance between the second channel-shaped part and the first channel-shaped part is changed to s/2, as shown in FIG. 2. A process similar to reducing the channel spacing and minimizing material usage is performed at localized locations of the channel bulkheads.
In this embodiment, the L 1 Is s/2, said L 2 Is s/4, said L 3 Is s/2.
In this embodiment, the edge support steel is one of flat steel 3, square steel or i-steel.
In this embodiment, the conventional trough shape is formed by die pressing; the first special groove shape, the second special groove shape and the third special groove shape are manufactured by welding and are connected with the adjacent groove shapes by welding.
In this embodiment, two sides of the first special groove are respectively disposed with a distance L 4 S/2 < L 4 ＜S。
In this embodiment, the spacing of the channels in the edge of the bulkhead plate, adjacent the edge support steel, when the part is not connected to the longitudinal bulkhead, the side plate, must be set to be greater than L for construction reasons 2 When the groove is formed, the groove height of the groove is increased.
In this embodiment, the channel bulkhead is mounted to a ro-ro passenger ship or a cruise ship.
FIG. 2 is a modified variable groove pitch channel bulkhead with the main modified position shown with a wavy coil.
The variable-groove-shaped-interval groove-shaped bulkhead provided by the patent has the following characteristics:
the whole cabin wall is divided into a conventional groove-shaped interval groove-shaped cabin wall area and a variable groove-shaped interval groove-shaped cabin wall area, wherein the groove-shaped interval of the conventional groove-shaped interval groove-shaped cabin wall area is still determined by a parent ship and design specifications, and the groove-shaped interval of the variable groove-shaped interval groove-shaped cabin wall area is adjusted according to structural arrangement. The conventional tank-shaped partition wall with the tank-shaped interval is formed by pressing through a die, the tank-shaped partition wall with the variable tank-shaped interval is manufactured by welding, and finally the tank-shaped partition wall and the variable tank-shaped interval are connected by welding.
The deck connected with the upper part of the channel-shaped bulkhead has a strut arrangement, the strut bears ballast of other arrangements of the upper deck, a channel shape is added at the position of the strut, and the left-right spacing L (L < s) of the channel shape is provided with two channel shapes, thus forming a channel-shaped bulkhead area with the variable channel-shaped spacing at the bottom of the strut.
If the edges of the groove-shaped bulkhead plate are not connected with the longitudinal bulkhead and the side plate, namely the edges of the bulkhead plate are free edges, and the freedom degree is not restrained, the side distance L (L < s) of the flat steel, the square steel and the I-shaped steel near the free edges is obtained. Two grooves are arranged, and the distance between the first groove and the flat steel and the distance between the second groove and the first groove can be enlarged in a certain proportion.
Depending on the specific arrangement of the compartments, the structure, at locations where the local compression loads are large, grooved bulkheads with varied groove pitch may be used, and the groove pitch in the range where the compression loads are large may be set to L (L < s).
The groove-shaped bulkhead with the variable groove-shaped spacing can not only change the groove-shaped spacing, but also change the size of the groove shape, for example, when the arranged groove-shaped spacing is L (L < s), and when the spacing is smaller than L, construction and other factors cause that the groove-shaped bulkhead cannot be built, and the buckling resistance can be improved by increasing the height and the width of the groove shape.
The utility model discloses a solve the condition that the local buckling takes place for the channel-shaped bulkhead pressurized load, add the variable groove shape interval region on the channel-shaped bulkhead of conventional channel-shaped interval. The bulkhead thus consists of two zones: a conventional channel-shaped spacing channel-shaped bulkhead area and a modified channel-shaped spacing channel-shaped bulkhead area. The groove-shaped spacing in the groove-shaped cabin wall area with the variable groove-shaped spacing can be adjusted according to specific stress, for example, buckling calculation is carried out by adopting finite element software to obtain optimal arrangement. The channel shape in the region of the channel-shaped bulkhead with varying channel spacing can also be varied, with the ultimate goal of increasing the buckling resistance of the bulkhead in the region of the larger ballast. This embodiment addresses the problem of local buckling of channel-shaped bulkheads caused by local excess ballasting of the channel-shaped bulkheads by providing a channel-shaped bulkhead with a varied channel pitch, a portion of which reduces the channel pitch in order to ensure buckling resistance of the bulkhead, as shown in fig. 4.
The utility model is suitable for a cargo hold district or functional area divide comparatively complicatedly, and uneven multiple passenger roller ship of ballast such as weight structure, the passenger roller ship type improves the local anti bucking performance of flute profile bulkhead, can effectually improve flute profile bulkhead free edge or the too big problem of buckling and buckling deformation of the great region of pressurized load, guarantees the security of ship structure.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements without departing from the general concept of the present invention, and all such changes or improvements should fall within the scope of the present invention.
Claims (8)
1. A variable groove pitch channel-shaped bulkhead, comprising:
at least one side of the upper side or the lower side of the tank-shaped bulkhead is provided with a strut (1);
the conventional groove shape width of the groove-shaped bulkhead is s; then the process of the first step is carried out,
the opposite positions of the groove-shaped bulkhead and the strut (1) are taken as the center, and a distance L is respectively arranged towards two sides 1 The first special groove shape of (1);
at the edge of the bulkhead plate which is not connected with the longitudinal bulkhead, the side plate, and the groove shape adjacent to the edge support steel are arranged with the distance L 2 A second special groove shape of (1);
the groove shape adjacent to the second special groove shape is set to have a distance L 3 The third special groove shape of (2);
L 2 ＜L 1 < S, said L 2 ＜L 3 ＜S。
2. The varied groove pitch channel bulkhead of claim 1 wherein: said L 1 Is s/2, the L 2 Is s/4, said L 3 Is s/2.
3. The varied groove pitch channel bulkhead of claim 1 wherein: the edge supporting steel is one of flat steel (3), square steel or I-steel.
4. The varied cell pitch channel bulkhead of claim 1 wherein: the conventional groove shape is formed by pressing a die; the first special groove shape, the second special groove shape and the third special groove shape are manufactured by welding and are connected with the adjacent groove shapes by welding.
5. The varied cell pitch channel bulkhead of claim 2 wherein: the two sides of the first special groove shape are respectively provided with an interval of L 4 S/2 < L 4 ＜S。
6. The varied groove pitch channel bulkhead of claim 1 wherein: the spacing of the channels of the edge support steel adjacent to the edge, when the part is not connected to the longitudinal bulkhead, the bulkhead side, the bulkhead edge, must be set to be greater than L for construction reasons 2 The groove height at the groove is increased.
7. The varied groove pitch channel bulkhead of claim 1 wherein: the strut (1) is arranged on the upper side of the groove-shaped bulkhead.
8. The varied groove pitch channel bulkhead of claim 1 wherein: the channel-shaped bulkhead is mounted on a ro-ro passenger ship or a cruise ship.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123070603.3U CN217048950U (en) | 2021-12-08 | 2021-12-08 | Groove-shaped bulkhead with variable groove-shaped spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123070603.3U CN217048950U (en) | 2021-12-08 | 2021-12-08 | Groove-shaped bulkhead with variable groove-shaped spacing |
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| Publication Number | Publication Date |
|---|---|
| CN217048950U true CN217048950U (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123070603.3U Active CN217048950U (en) | 2021-12-08 | 2021-12-08 | Groove-shaped bulkhead with variable groove-shaped spacing |
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| CN (1) | CN217048950U (en) |
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- 2021-12-08 CN CN202123070603.3U patent/CN217048950U/en active Active
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