JP7211851B2 - Support structure for objects on ships - Google Patents

Description

TECHNICAL FIELD The present invention relates to a support structure for supporting an object to be mounted on a ship.

In Patent Document 1 below, anchors are stretched in the lateral direction (horizontal direction) of the hull from Sipsy wheels of windlasses (anchoring machines) arranged on both sides on the upper deck of the bow of the ship. A roller type chain compressor (object) is disclosed that relays and holds the chain in front of the hose pipe. In this chain compressor, a roller over which an anchor chain is stretched is fixed to a roller shaft, and both ends of this roller shaft are held by main body side frames (supports) fixed on the upper deck.

In such a chain compressor, due to twisting of the anchor chain or the like, the arrangement of the chain compressor may have to be shifted in the fore-and-aft direction from the originally designed position.

Here, a relatively large load, including the anchors, acts on the body side frame via the anchor chain. It is common to disperse Specifically, the main body side frame is positioned above the wall reinforcement member such as a longi or a deck cross beam welded under the upper deck to reinforce the upper deck (wall) and welded on the upper deck. is the general design.

Jitsuho 7-34789

However, as described above, when the main body side frame deviates greatly from above the wall reinforcement member such as the longitudinal or deck cross beam (when the deviation exceeds the predetermined allowable limit), the wall portion Since the load from the body side frame cannot be well distributed to the reinforcing member, the following treatment is generally performed. In other words, the wall reinforcing member in the range where it is displaced is cut and reattached so that it is positioned below the main body side, or the wall reinforcing member is partially cut to increase the plate thickness. Become. In addition, in the case of work in high places, scaffolding installation, dismantling, repainting, etc. are further added. That is, since it is necessary to adjust the wall reinforcing member on the hull structure side, the on-site work is extremely inefficient.

Also, ships such as, for example, oil tankers have pipes (objects) through which oil flows into cargo oil tanks on board the ship, and vice versa. Such pipes are known to be supported by welded supports on the inner bottom plate (wall) of the double hull construction. A wall reinforcing member such as a longitudinal is welded under the inner bottom plate to reinforce the inner bottom plate. Here, due to pipe accuracy, hull accuracy, etc., the position of the support may have to be greatly displaced from above the wall reinforcing member such as the longitudinal (displacement exceeding a predetermined allowable limit). may have to be done). In this case, as in the case of the chain compressor described above, adjustment of the wall reinforcing member is required, which makes the on-site work very inefficient.

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems, and it is possible to greatly displace an object with respect to the wall reinforcing member by means of the structure of the support without adjusting the wall reinforcing member. An object of the present invention is to provide a support structure for an object on a ship that can improve the efficiency of on-site work.

A support structure for an object in a ship according to the present invention is a support structure for supporting an object to be mounted on a ship, and is fixed to one side of a wall constituting a hull to reinforce the wall. and a support that is fixed to the wall opposite the wall reinforcing member and supports an object, the support comprising a first support member, a second support member, and a second support member. and an intervening member interposed between the first supporting member and the second supporting member and fixed to the first supporting member and the second supporting member.

According to such an object support structure for a ship, the support that supports the object includes a first support member, a second support member, and an intervening member. The intervening member is interposed between the first supporting member and the second supporting member and fixed to the first supporting member and the second supporting member. That is, between the wall portion reinforced by the wall portion reinforcing member and the support portion where the support supports the object, the first support member and the second support member capable of transmitting the load via the intervening member are provided. It becomes the structure that a support member exists. In this case, the first support member is displaced in one direction with respect to the wall reinforcing member and the second support member is displaced in one direction with respect to the first support member within a range in which load transmission can be ensured. structure can be adopted. According to this configuration, the amount of deviation between the wall reinforcing member and the support location is reduced by the difference between the wall reinforcing member and the support location, while ensuring the transferability of the load from the object to the wall reinforcement member. can be made larger than the amount of deviation when using only one support member between. Therefore, without adjusting the wall reinforcing member, the object can be largely displaced with respect to the wall reinforcing member by the structure of the supporting body, and the efficiency of on-site work can be improved.

With the wall portion reinforcing member and the first supporting member butted against each other with the wall portion interposed therebetween, one main surface of the first supporting member has a thickness corresponding to the thickness range of the wall portion reinforcing member. and the other main surface of the first supporting member is within the thickness range of the wall reinforcing member, separating the first supporting member and the second supporting member. With the intervening member interposed therebetween, one main surface of the second supporting member protrudes in the same direction as the one direction with respect to the range of thickness of the first supporting member, and the other main surface of the second supporting member exists within the thickness of the first support member. As a result, in a state in which the wall reinforcing member and the first supporting member are butted against each other via the wall, one main surface of the first supporting member is The other main surface of the first supporting member protrudes in one direction away from one main surface of the wall reinforcing member and is located within the thickness range of the wall reinforcing member. Since the other main surface of the first supporting member is located within the thickness range of the wall reinforcing member, the load acting on the first supporting member can be transmitted to the wall reinforcing member.

In a state in which the wall reinforcing member and the first supporting member are butted against each other via the wall, one main surface of the first supporting member is positioned so as to extend from the wall reinforcing member to the thickness range of the wall reinforcing member. The other main surface of the first support member protrudes in one direction away from one main surface of the member and is located within the thickness range of the wall reinforcing member. Since the other main surface of the first supporting member is located within the thickness range of the wall reinforcing member, the load acting on the first supporting member can be transmitted to the wall reinforcing member. With this configuration, the first support member can be displaced in one direction with respect to the wall reinforcing member while ensuring load transferability. Further, in a state in which the first supporting member and the second supporting member are butted against each other with an intervening member interposed therebetween, one main surface of the second supporting member is , protrudes in the same direction as the one direction, and the other main surface of the second support member is positioned within the range of the thickness of the first support member. Since the other main surface of the second support member is located within the thickness range of the first support member, the load acting on the second support member can be transmitted to the first support member. With this configuration, the second support member can be further displaced in one direction with respect to the first support member while ensuring load transferability. That is, the amount of deviation between the wall reinforcing member and the second supporting member is the amount of deviation between the wall reinforcing member and the first supporting member, and the amount of deviation between the first supporting member and the second supporting member facing in the same direction as the deviation. It can be the sum of the amount of deviation from the supporting member, and the amount of deviation can exceed the amount of deviation at each location. Therefore, without adjusting the wall reinforcing member, the object can be largely displaced with respect to the wall reinforcing member by the structure of the supporting body, and the efficiency of on-site work can be improved.

Here, if the other main surface of the second supporting member is positioned in one direction from the center line of the wall reinforcing member, the second supporting member extends beyond half the thickness of the wall reinforcing member. You can move it to any position.

Moreover, it is preferable that the supports are arranged in the center and the vicinity of the center in the longitudinal direction of the hull. Important members such as longitudinal strength members, which are subjected to large loads by waves, are arranged in the center and the vicinity of the center in the fore-and-aft direction of the hull. Within the range where important members are arranged, the amount of displacement between the wall reinforcing member and the support member (that is, the amount of displacement between members per location) is strictly limited. Even under such severe restrictions, if the object support structure of the present invention is applied, the object can be largely displaced with respect to the wall reinforcing member. That is, by adopting the object support structure of the present invention in the range of the center and the vicinity of the center in the longitudinal direction of the hull, the effect obtained by the support structure becomes more remarkable.

Moreover, it is preferable that the object receives a force in the thickness direction of the wall reinforcing member. Ships include objects that generate forces other than their own weight, such as chain compressors and pipes through which oil flows (oil pipes). When supporting such an object, the wall reinforcing member receives a force in the thickness direction of the wall reinforcing member from the object in addition to the object's own weight, so that the thickness of the wall reinforcing member increases strength. can be secured. Here, when force is applied to the wall reinforcing member in the thickness direction, it is difficult to increase the amount of displacement between the wall reinforcing member and the supporting member (that is, the amount of displacement between the members at one point). There is Even in such a case, if the object support structure of the present invention is applied, the object can be largely displaced with respect to the wall reinforcing member. That is, by adopting the support structure of the present invention for an object that receives force in the thickness direction of the wall reinforcing member, the effect obtained by the support structure becomes more remarkable.

According to the present invention, the object can be largely displaced with respect to the wall reinforcing member by the configuration of the support without adjusting the wall reinforcing member, and the efficiency of on-site work can be improved. can provide a support structure for

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic side view which shows the ship to which the support structure of the target object which concerns on embodiment of this invention was applied. FIG. 2 is a schematic perspective view showing a support structure for the object in FIG. 1; FIG. 4 is a cross-sectional view showing a support structure in which the object is a pipe; FIG. 4 is an enlarged cross-sectional view showing a main part of the support structure in FIG. 3, omitting welded parts to show displacement between members. FIG. 5 is an enlarged cross-sectional view of the support structure corresponding to FIG. 4, with the addition of a weld; FIG. 10 is an enlarged cross-sectional view of a support structure for an object according to another embodiment, with welds omitted to show displacement between members. FIG. 4 is a diagram for explaining misalignment amounts defined in JSQS;

A preferred embodiment of a structure for supporting an object on a ship according to the present invention will be described below with reference to the drawings. In the following explanation, the terms "front" and "rear" correspond to the direction of travel of the hull, the term "longitudinal" corresponds to the fore-and-aft direction, and the term "horizontal" corresponds to the hull. It corresponds to the horizontal (width) direction, and the terms "top" and "bottom" correspond to the vertical direction of the hull. Incidentally, the words "front", "back" and "vertical", and "horizontal" and left and right are appropriately used in the text.

FIG. 1 is a schematic side view showing a ship to which an object support structure according to an embodiment of the present invention is applied, and the ship is an oil tanker here.

As shown in FIG. 1, a ship 100 includes a hull 1, a propeller 2 and a rudder 3. The bow part is located on the front side (right side in the figure) of the hull 1, the stern part is located on the rear side (left side in the figure) of the hull 1, and the propeller 2 and the rudder 3 are located on the stern part. . The propeller 2 propels the hull 1, and uses, for example, a screw. Rudder 3 controls the direction of propulsion of hull 1 .

The hull 1 includes an upper deck 4 that forms a ceiling surface, an outer plate (outer wall) 5 that forms the outer shell of the hull 1, an inner plate (inner wall) 6 provided watertightly inside the hull of the outer plate 5, The outer plate 5 and the inner plate 6 form a double hull structure. The shell plate 5 includes a bottom shell plate 7 forming a bottom side shell and a side shell plate forming a side shell. On the other hand, the inner plate 6 includes an inner bottom plate 8 extending longitudinally on the bottom side of the ship, and a longitudinal bulkhead as a longitudinal member extending longitudinally on the side of the ship.

In this hull 1, the space inside the hull rather than the inner plate 6 is used as a cargo oil tank 9 for loading oil, and the space between the outer plate 5 and the inner plate 6 is filled with ballast water. ballast tank 10. The cargo oil tanks 9 and the ballast tanks 10 are partitioned in the front-rear direction by a plurality of horizontal partition walls 11 arranged side by side in the front-rear direction. In FIG. 1, in order to avoid complication of the drawing, trans-rings between the horizontal bulkheads 11, 11, the upper deck 4, the outer plate 5, the inner plate 6, etc. are used as walls. Bone members such as longitudinals (stiffeners) as wall reinforcing members fixed to one side and reinforcing the wall are omitted.

A pump room 50 is arranged on the stern side of the transverse bulkhead 11 defining the cargo oil tank 9 on the stern side, and an engine room 51 is arranged on the stern side of the pump room 50 across the transverse bulkhead 25. be. A pump for the cargo oil tank 9 and a pump for the ballast tank 10 are arranged in the pump room 50 , and a main engine for driving the propeller 2 is arranged in the engine room 51 .

The vessel 100 comprises a support structure 30 for supporting an object 90 of interest mounted on the vessel 100 . FIG. 2 is a schematic perspective view showing a support structure for an object. As shown in FIG. 2 , the support structure 30 includes a wall reinforcing member 92 that is fixed to one side of a wall 91 that constitutes the hull 1 and reinforces the wall 91 , and a wall reinforcing member 92 that is attached to the wall 91 . a support 13 fixed on the opposite side and supporting an object 90 . The object 90 is not particularly limited as long as it is provided on the walls 91 such as the upper deck 4 and the inner plate 6 of the hull 1, and any device, structure, or the like can be adopted.

Here, a pipe (an object) is mounted in the hull 1 to flow oil into the cargo oil tank 9 in the ship or vice versa. Therefore, in this embodiment, the support structure 30 that supports the pipe as the object 90 will be described. Note that other objects will be described later. FIG. 3 is a cross-sectional view showing a support structure 30 whose object is a pipe.

As shown in FIG. 3 , the pipe 12 is provided with respect to the inner bottom plate 8 as the wall portion 91 . Also, the pipe 12 is supported by a structure called a heavy anchor piece as a support 13 .

As shown in FIGS. 2 and 3, the support 13 includes a lower first support member 14, an upper second support member 15, the first support member 14, and the second support member 15. and an intervening member 16 interposed therebetween and fixed to the first supporting member 14 and the second supporting member 15 .

The first support members 14 are configured in the shape of flat plates extending in the vertical direction and the horizontal direction, and a pair of the first support members 14 are arranged in parallel and spaced apart in the front-rear direction. Similarly to the first support member 14, the second support member 15 is also configured in a flat plate shape extending in the vertical direction and the horizontal direction, and a pair thereof are arranged in parallel and spaced apart in the front-rear direction. The second support member 15 is positioned generally above the first support member 14 with an intervening member 16 therebetween. The first support member 14 and the second support member 15 extend laterally to correspond to the size of the pipe 12 . Also, the first support member 14 and the second support member 15 extend in the lateral direction corresponding to a portion of a longi 17 (described later) as a wall reinforcing member 92 extending in the lateral direction.

The intervening member 16 is formed in a flat plate shape parallel to the inner bottom plate 8 and extends in the lateral direction like the first and second support members 14 and 15 . The outer shape of the intervening member 16 is set so that it protrudes slightly in the front-rear direction and in the lateral direction from the first and second support members 14 and 15 . That is, here, the intervening member 16 is horizontally arranged as one flat plate. With such a single-plate intervening member 16, the first support member 14 and the second support member 15 on one side (for example, the right side in FIG. 3) and the first support member 15 on the other side (for example, the left side in FIG. 3) Advantages are that the intervening member 16 is well-balanced between the supporting member 14 and the second supporting member 15 and that the stability can be easily maintained, the strength can be easily secured, and the design is easy.

On the other hand, the intervening member between the first supporting member 14 and the second supporting member 15 on one side and the intervening member between the first supporting member 14 and the second supporting member 15 on the other side are , can also be separated as separate members. In this case, the separate intervening members may have different vertical positions. In this way, when the intervening members are divided into separate members for one side and the other side, each intervening member can be arranged at an appropriate height position according to the situation of one side and the situation of the other side. It becomes possible. In the following description, the intervening member 16 is described as one flat plate shown in FIGS. 2 and 3. FIG.

The lower end surface of the first support member 14 abuts against the upper plane of the inner bottom plate 8 as a wall portion, and the upper end surface of the first support member 14 abuts against the lower plane of the intervening member 16 . The lower end surface of the second support member 15 abuts against the upper plane of the intervening member 16, the inner bottom plate 8 and the first supporting member 14, the first supporting member 14 and the intervening member 16, the intervening member 16, and the intervening member 16. The member 16 and the second support member 15 are each fixed by fillet welding (see FIG. 5). A pipe 12 is mounted on the support 13 and fixed by welding (see FIG. 3).

As shown in FIGS. 2 and 3 , the longitudinal side 17 as a wall reinforcing member 92 for reinforcing the inner bottom plate 8 is fixed to the back side (one side) of the inner bottom plate 8 . The longi 17 extends longitudinally in the vertical direction and in the horizontal direction, and adopts, for example, an I-shape (flat plate shape), an L-shape or a T-shape with a bent lower end. A plurality of longitudinals 17 are arranged side by side at predetermined intervals in the front-rear direction. The upper end faces of these longitudinals 17 abut against the lower flat surface of the inner bottom plate 8 as a wall portion, and the inner bottom plate 8 and longitudinals 17 are fixed by fillet welding (see FIG. 5).

By the way, in terms of design, the first support member 14 is arranged above (directly above) the longi 17 with the inner bottom plate 8 interposed therebetween. When the position of the pipe 12 is changed, the first support member 14 constituting the support 13 may have to be displaced from its designed position.

In this embodiment, they are shifted as shown in FIG. Here, the plate thickness T1 of the longi 17, the plate thickness T2 of the first support member 14, and the plate thickness T3 of the second support member 15 are the same.

Then, in a state in which the longitudinals 17 and the first supporting member 14 are butted against each other with the inner bottom plate 8 interposed therebetween, one main surface 14a of the first supporting member 14 is positioned so that the length T1 of the longitudinals 17 is within the range of the thickness T1. The main surface 14b of the first support member 14 is within the range of the thickness T1 of the longie 17. there is

Further, in a state in which the first support member 14 and the second support member 15 are butted with each other with the intervening member 16 interposed therebetween, the thickness of the second support member 15 is increased with respect to the range of the thickness T2 of the first support member 14. One main surface 15a is displaced in the same direction as the above one direction, and the displacement amount A2 protrudes. ing.

The displacement amount A3 between the longi 17 and the second support member 15 is the same as the displacement amount A1 between the longi 17 and the first support member 14, and the first support member 14 and the second support that face the same direction as this displacement. It is the sum of the deviation amount A2 with respect to the member 15.

As shown in FIG. 5, the longitudinales 17 and the inner bottom plate 8, and the inner bottom plate 8 and the first support member 14 are provided with fillet welds 18, respectively, and fixed to each other. The first supporting member 14 and the intervening member 16, and the intervening member 16 and the second supporting member 15 are provided with fillet welds 20, respectively, and fixed to each other.

4 and 5, the support structure on the bow side of the support 13 shown in FIG. 3 is extracted, but the support structure on the stern side of the support 13 is the same. The first support member 14 and the second support member 15 are similarly moved toward the bow, and similar fillet welds 18 and 20 are formed.

Here, when the members are shifted, there are generally restrictions, and the amount of misalignment is defined in JSQS (Japan Shipbuilding Quality Standard) 2010 as the restriction.

As shown in FIG. 7, this provision is such that a first plate 81 and a second plate 82 are butted with an intermediate plate 80 therebetween so as to form a cross, for example, and the first plate 81 and the intermediate plate 80 are are fillet welded together, and the second plate 82 and the intermediate plate 80 are fillet welded together. Here, the distance between one main surface 81a of the first plate 81 and one main surface 82a of the second plate 82 is defined as misalignment amount a, and the plate thickness t1 of the first plate 81, Assuming that the plate thickness t2 of the second plate 82 and t1≧t2, in the case of an important member (details will be described later) as in this embodiment, the allowable limit of the misalignment amount a is given by the following formula (1): It is within range.
a≦(1/3)t2 …(1)

This embodiment conforms to JSQS2010, and the allowable limits of the deviation amounts A1 and A2 are set to (1/3) T1. Incidentally, as described above, T1=T2=T3.

Therefore, according to this embodiment, the other main surface 15b of the second support member 15 can be positioned in one direction from the center line CL of the longitudinal 17, as shown in FIG. Specifically, if the deviation amount A1 is (1/3) T1 and the deviation amount A2 is (1/3) T1, the deviation amount A3 is (2/3) T1, and the second support member 15 is It can be largely displaced to a position exceeding half of the thickness T1 of the longi 17. - 特許庁

In addition, in JSQS2010, the permissible limit of the misalignment amount a of members other than important members is within the range of the following formula (2).
a≦(1/2)t2 …(2)

In this case, since the allowable limit is larger than the formula (1), the other main surface 15b of the second support member 15 can of course be positioned in one direction from the center line CL of the longitudinal 17, and the second can be largely displaced to a position exceeding half the thickness T1 of the longitudinal 17.

Furthermore, according to JSQS2010, welding is permitted by adding additional constraints if the following equation (3) is satisfied in the case of important members.
(1/3) t2 ≤ a ≤ (1/2) t2 …(3)

Specifically, as shown in FIG. 5, for example, as additional welding, weld beads 19 and 21 indicated by a dotted line called a so-called increased leg length of 10% or more are added to the weld beads 18 and 20 that have already been performed. It is said that it is good to set up and reinforce. Although the weld beads 19 and 21 are overlapped at one diagonal position here, they may be provided at both diagonal positions.

Next, functions and effects of the support structure according to this embodiment will be described.

First, as a comparative example, a support structure obtained by omitting the intervening member 16 and the second support member 15 from the support structure shown in FIG. 4 will be described. In the support structure according to the comparative example, the first support member 14 supports the pipe 12 . In the support structure according to the comparative example, the displacement amount between the pipe 12 and the longitudinals 17 is the displacement amount A1 between the longitudinales 17 and the first support member 14 . In order to transmit the load from the pipe 12 to the longitudinals 17 via the first supporting member 14, the other main surface 14b of the first supporting member 14 must be within the range of at least the thickness T1 of the longitudinals 17. must be Therefore, when trying to shift the pipe 12 with respect to the longitudinals 17, the amount of shift is limited to within the range of the thickness T1 of the longitudinals 17 in the support structure according to the comparative example. Furthermore, when the amount of deviation between the members conforms to JSQS2010, the amount of deviation between the pipe 12 and longitudinal 17 is limited to the range according to the above-mentioned formulas (1) to (3).

Therefore, in order to greatly deviate the pipe 12 from the longitudinals 17 beyond the limits as described above, it is necessary to cut the existing longitudinals 17 once and attach them again at positions corresponding to the deviation of the pipe 12 . Alternatively, it is necessary to replace the existing longitudinals 17 with thicker longitudinales 17 . As described above, in the support structure according to the comparative example, when the position of the pipe 12 is greatly displaced, adjustment of the longi 17 on the hull structure side is required, which makes field work very inefficient.

In contrast, in this embodiment, the support 13 that supports the object 90 includes a first support member 14, a second support member 15, and an intervening member 16. As shown in FIG. The intervening member 16 is interposed between the first supporting member 14 and the second supporting member 15 and fixed to the first supporting member 14 and the second supporting member 15 . That is, the intervening member 16 is placed between the wall portion 91 reinforced by the wall portion reinforcing member 92 and the support portion (the upper end of the second support member 15 in FIG. 2) where the support member 13 supports the object 90. The first support member 14 and the second support member 15 exist in a state in which the load can be transmitted through the support members 14 and 15 . In this case, the first support member 14 is shifted in one direction with respect to the wall reinforcing member 92 within a range in which load transmissibility can be secured, and the second support member 15 is displaced with respect to the first support member 14. It becomes possible to adopt a structure shifted in one direction. According to this configuration, the amount of displacement between the wall reinforcing member 92 and the support location is reduced to that of the wall reinforcing member 92 while ensuring the transferability of the load from the object 90 to the wall reinforcing member 92. It is possible to increase the amount of deviation compared to the case where only one support member is used between the support points. Therefore, without adjusting the wall reinforcing member 92, the structure of the support 13 allows the object 90 to be largely displaced with respect to the wall reinforcing member 92, thereby improving the efficiency of on-site work.

More specifically, when the longitudinals 17 and the first supporting member 14 are butted against each other with the inner bottom plate 8 interposed therebetween, one main surface of the first supporting member 14 is measured with respect to the range of the thickness T1 of the longitudinals 17. 14a protrudes in one direction away from one principal surface 17a of the longitudinal, and the other principal surface 14b of the first support member 14 is located within the range of the thickness T1 of the longitudinal 17. As shown in FIG. Since the other main surface 14 b of the first support member 14 is located within the range of the thickness T<b>1 of the longitudinals 17 , the load acting on the first support members 14 can be transmitted to the longitudinals 17 . With this configuration, the first support member 14 can be displaced in one direction with respect to the longitudinals 17 while ensuring load transmissibility. In addition, in a state in which the first support member 14 and the second support member 15 are butted with the intervening member 16 interposed therebetween, the second support member 15 has a thickness within the range of the thickness T2 of the first support member 14. protrudes in the same direction as the one direction, and the other main surface 15b of the second support member 15 is located within the thickness T2 of the first support member 14 . Since the other main surface 15b of the second support member 15 is located within the range of the thickness T2 of the first support member 14, the load acting on the second support member 15 is transferred to the first support member 14. can be transmitted. With this configuration, the second support member 15 can be further displaced in one direction with respect to the first support member 14 while ensuring load transferability.

That is, the amount of deviation A3 between the longitudinals 17 and the second support member 15 is equal to the amount of deviation A1 between the longitudinals 17 and the first support member 14, and the amount of deviation A1 between the first support member 14 and the second support member 14 facing in the same direction as this deviation. , and the deviation amount A3 exceeding the deviation amounts A1 and A2 at each location. Therefore, the structure of the support 13 allows the pipe 12 to be largely displaced with respect to the longitudinals 17 without adjusting the longitudinals 17, thereby improving the efficiency of the site work.

Since there are circumstances and restrictions unique to ships, increasing the amount of deviation, even if it is only for the thickness of one plate, is very effective in the field of ships.

Further, according to this embodiment, as shown in FIG. 4, the other main surface 15b of the second support member 15 can be positioned in one direction from the center line CL of the longitudinal 17. As shown in FIG. As a result, the second support member 15, that is, the member that supports the pipe 12, can be largely displaced to a position exceeding half the thickness T1 of the longitudinal 17. As shown in FIG. Here, in the support structure according to the comparative example, the member (first support member 14) that supports the pipe 12 can only be shifted by a shift amount A1 between the longi 17 and the first support member 14. FIG. When the amount of deviation between members conforms to JSQS2010, even if the constraint conditions of formulas (2) and (3) with large allowable limits are adopted, the amount of deviation of the member supporting the pipe 12 with respect to the longitudinal 17 cannot be larger than half the thickness T1 of the longitudinal 17. On the other hand, in the present embodiment, even when the constraint condition of formula (1) with severely restricted allowable limits is adopted, the amount of deviation A1 is set to (1/3)T1, and the amount of deviation A2 is set to (1/3)T1 Then, the amount of deviation A3 is (2/3)T1. That is, even under severe constraints, the second support member 15 that supports the pipe 12 can be largely displaced to a position exceeding half the thickness T1 of the longitudinal 17 .

FIG. 6 is an enlarged cross-sectional view of a support structure for an object according to another embodiment, in which welded portions are omitted so as to show displacement between members.

The support structure of this embodiment differs from the previous embodiment in that the plate thicknesses of the longitudinal 17, the first support member 14, and the second support member 15 are different. Here, T1<T2<T3 It has become.

Even in this embodiment, as in the previous embodiment, the displacement amount A3 between the longitudinals 17 and the second support member 15 is equal to the displacement amount A1 between the longitudinales 17 and the first support member 14, This deviation can be the sum of the deviation and the deviation A2 between the first supporting member 14 and the second supporting member 15 facing in the same direction, and the deviation A3 exceeding the deviations A1 and A2 at each location can be obtained. can. Therefore, the structure of the support 13 allows the pipe 12 to be largely displaced with respect to the longitudinals 17 without adjusting the longitudinals 17, thereby improving the efficiency of the site work.

Further, as in the previous embodiment, the other main surface 15b of the second support member 15 can be positioned in one direction from the center line CL of the longitudinal 17, and the second support member 15 can can be largely displaced to a position exceeding half of the thickness T1.

Also, if the above equation (3) is followed, the welding may be restricted.

As shown in FIG. 1, the distance between the center of the rudder 3 and the forward end of the bow member at the full load line is L, and the range extending from the center C in the longitudinal direction of the hull 1 to the bow side by 0.3L is A range M of 0.6L, which extends 0.3L toward the stern side, is called a range in which important members are arranged. This range M is a range where the load due to waves is severe, and important members within the range M include longitudinal strength members. Transformers, floors, cross ties, shelf structures, web slots, hatch coamings, aft peak floors, main machine bases, thrust bases, pillar tops and bottoms, various Bkt Places where stress is considered to be high, such as edges, can be mentioned.

It is preferable that the support structure 30 is arranged in the range of the center and the vicinity of the center in the longitudinal direction of the hull 1, that is, the range M where the important members are arranged. Important members, such as longitudinal strength members, which are subjected to a large load due to waves are arranged in the center and the range M near the center in the longitudinal direction of the hull 1 . Within the range where important members are arranged, the amount of displacement between the wall reinforcing member 92 and the support member (that is, the amount of displacement between members per location) is strictly limited. Specifically, when complying with JSQS2010, Equation (1), which is a stricter constraint condition than Equation (2), is applied to important members. Even under such severe restrictions, if the support structure 30 of the present embodiment is applied, the object can be largely displaced with respect to the wall reinforcing member 92 . That is, by adopting the support structure 30 in the center and the vicinity of the center in the longitudinal direction of the hull 1, the effect obtained by the support structure 30 becomes more remarkable.

Further, the object 90 including the pipe 12 preferably receives force in the thickness direction of the wall reinforcing member 92 including the longitudinal 17 . The ship 100 includes, for example, a chain compressor, an object such as the pipe 12 through which oil flows, on which a force other than its own weight acts. Therefore, in the wall reinforcing member 92, in addition to the weight of the object 90, the force in the thickness direction of the wall reinforcing member 92 from the object 90 is received by the thickness of the wall reinforcing member 92, and the strength is ensured. can be done. Here, when force is applied to the wall reinforcing member 92 in the thickness direction, it is difficult to increase the amount of displacement between the wall reinforcing member 92 and the support member (that is, the amount of displacement between the members per location). may become. Even in such a case, if the support structure 30 of this embodiment is applied, the object can be largely displaced with respect to the wall reinforcing member 92 . That is, by adopting the support structure 30 for an object that receives force in the thickness direction of the wall reinforcing member 92, the effect obtained by the support structure 30 becomes more remarkable.

The present invention has been specifically described above based on the embodiments thereof, but the present invention is not limited to the above embodiments. A first support member 14 having a flat plate shape and spaced parallel to each other and a second support member 15 having a flat plate shape and spaced parallel to each other are provided. Each of the two support members may be a rectangular pipe with four sides. In this case, the rigidity of the support can be further increased. Similarly, for the first and second support members, various members such as square prisms, polygonal prisms, and the like can be used. Also, the intervening member 16 may be a disc or the like. Also, each of the first support member 14 and the second support member 15 may be slightly inclined in the same direction.

In the above-described embodiment, one intervening member 16 is provided between the wall portion 91 and the object 90 in the vertical direction. If 14 and 15 are fixed and a plurality of sheets are used, the deviation amount can be accumulated and increased. That is, there are N stages of supporting members between the wall and the object (N is an integer of 3 or more), and the n-th supporting member counted from the wall is defined as the "nth supporting member". (n is an integer less than or equal to "N-1"). At this time, an intervening member is provided between the nth support member and the (n+1)th support member. Further, in a state where the n-th supporting member and the (n+1)-th supporting member are butted with each other with an intervening member interposed therebetween, one of the (n+1)-th supporting members is The main surface protrudes in the same direction as the one direction, and the other main surface of the (n+1)-th support member exists within the thickness range of the n-th support member. Such a relationship holds for all members from the second support member to the Nth support member. By adopting such a configuration, even if the displacement of the object is larger than that shown in FIG. 4, it is possible to cope with the displacement of the object without adjusting the position of the wall reinforcing member. can.

Moreover, although various modifications of the wall portion 91, the wall portion reinforcing member 92, and the support member 13 have been described above, the present invention is not limited to these. In particular, as described in the prior art, the target object is the chain compressor, the wall is the upper deck 4 (see FIG. 1), the wall reinforcing member is the longitudinal or deck cross beam, etc., and the support is the chain compressor base. It can be effectively applied when In this case, the chain compressor relays and holds the anchor chain hoisted/lowered by the windlass in front of the hose pipe. Since the position of the chain compressor that is engaged is deviated in the fore and aft direction with respect to the design position, the chain compressor base (the main body side frame referred to in Patent Document 1) is deviated from the design position on the wall reinforcing member, Application of the support structure of the present invention is effective. Furthermore, when the wall portion 91 is a longitudinal bulkhead, a horizontal bulkhead, or the like, the wall portion reinforcing member 92 is a longitudinal or the like, the object 90 is a pipe or the like, and the support 13 supports the object 90 from the side. It can be applied and applied to various things.

In addition, the ship is not limited to an oil tanker, and can be applied to all support structures for supporting an object to be mounted on a ship. In this case, the method can be applied to all objects whose installation position cannot be determined by a single object.

In addition, the allowable limits based on the above formulas, numerical values, and conditions may change internationally or in the future, and in that case, they will comply with them.

That is, depending on the permissible limit defined by the standard, the first support member is shifted in one direction with respect to the wall reinforcing member within a range in which load transmissibility can be ensured, and the first support member is shifted in one direction. The structure is not limited to the structure of the above-described embodiments, as long as the structure is the same. For example, the other main surface of the first support member may be outside the range of the thickness of the wall reinforcing member and protrude in one direction from the one main surface of the wall reinforcing member (or slightly protrude). roughly the same position). The other main surface of the second support member may be outside the range of the thickness of the first support member and protrude in one direction from the one main surface of the first support member (or slightly protrude). roughly the same position). Also, "one main surface of the first supporting member protrudes in one direction away from one main surface of the wall reinforcing member, and the other main surface of the first supporting member is thicker than the wall reinforcing member. The condition "exists within the range" and "one main surface of the second support member protrudes in the same direction as the one direction, and the other main surface of the second support member is the thickness of the first support member. exists within the range.", but a structure that satisfies only one of the conditions may be adopted.

Reference Signs List 1 Hull 8 Inner bottom plate (wall) 12 Pipe (object) 13 Heavy anchor piece (support) 14 First support member 14a One main part of the first support member Surface 14b... The other main surface of the first supporting member 15... The second supporting member 15a... One main surface of the second supporting member 15b... The other main surface of the second supporting member 16 Interposed member 17 Longi (wall reinforcing member) 17a One main surface of longi 30 Supporting structure 90 Object 91 Wall 92 Wall reinforcing member 100 Ship CL . . . Center line of longitudinal, M .

Claims (3)

A support structure for supporting an object of interest mounted on a ship, comprising:
a wall reinforcing member that is fixed to one side of a wall that constitutes a hull and reinforces the wall;
a support that is fixed to the wall on the opposite side of the wall reinforcing member and supports the object;
The support body includes a first support member, a second support member, and a support member interposed between the first support member and the second support member. an intervening member fixed to the member ;
With the wall portion reinforcing member and the first supporting member butted against each other with the wall portion interposed therebetween, one main surface of the first supporting member is , protrudes in one direction away from one main surface of the wall reinforcing member, and the other main surface of the first supporting member exists within the range of thickness of the wall reinforcing member;
In a state in which the first support member and the second support member are butted against each other with the intervening member interposed therebetween, one main portion of the second support member is provided with respect to the thickness range of the first support member. The surface protrudes in the same direction as the one direction, and the other principal surface of the second support member exists within the thickness range of the first support member,
An object support structure for a ship , wherein the other main surface of the second support member is located in the one direction from the center line of the wall reinforcing member . 2. The structure for supporting an object in a ship according to claim 1 , wherein the supports are arranged at the center and in the vicinity of the center in the longitudinal direction of the hull. 3. The structure for supporting an object in a ship according to claim 1 , wherein the object receives a force in the thickness direction of the wall reinforcing member.

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