JP6184688B2 - Construction method for ship-shaped structures - Google Patents

Description

The present invention is a ship-shaped structure used as a ship-shaped offshore structure such as a commercial ship such as a cargo ship or a passenger ship or an offshore production facility. about the construction method of the boat structure can be built at a cost.

  In the construction of ship-shaped structures used as conventional ship-type marine structures for commercial ships such as cargo ships and passenger ships, offshore production facilities, etc. Ships having a hull shape in which the weight of cargo, navigation speed, seaworthiness, propulsion performance, etc. are individually optimized for these functions are provided.

  In particular, the same type of ship series of the same type of ship usually does not change the main point or hull shape, and when changing the main point and building with another same type ship type, it is normal to change the hull shape. It was. For this reason, we have developed and designed the number of hull shapes for the number of series of the same type of ship series to provide ships with optimal hull shapes, and have spent enormous time and cost. In addition, since a building yard for building a ship (a yard of a shipyard or a building dock) is built in a state where different hull shapes are mixed, there is a limit to simplification and rationalization of a production line and improvement of building efficiency.

  Also, in the construction of ships, block construction is carried out, and a part of the hull is divided into large blocks and built at an onshore factory, and this block is transported to a stern or construction dock by a crane and assembled. Ships and offshore structures are being built in the building yard.

  On the other hand, in order to realize a carrier ship with adjustable load capacity, male blocks are respectively provided at the end of the bow, stern, and the intermediate portion interposed between the bow and stern. A connecting ship has been proposed in which a body or a female block body is mounted and the bow, stern and intermediate parts are connected via a connecting block consisting of a male block body and a female block body. (For example, refer to Patent Document 1).

JP 2004-82883 A

  Based on the idea of separating the bow, stern, and middle part, the present inventors have established the bow and stern parts in terms of the ship's operational performance compared to the hull parallel part sandwiched between them. While it is an important part in seaworthiness, it has many curved surfaces and requires a relatively high level of construction technology for construction. At the same time, pay attention to the fact that the curved surface shape is small and can be built with a relatively low level of construction technology. By reexamining the construction method, we came up with the technical idea of building a ship-shaped structure in multiple construction yards.

The present invention has been made in view of the above situation, and the purpose of the present invention is to create a ship yard (mother yard) having relatively high technology in a ship-shaped structure of a ship or a ship-shaped offshore structure. A hull form structure that can provide a complete form of a hull form structure at a lower cost and more efficiently by constructing the stern part and connecting the bow part, the middle part, and the stern part without selecting the building yard. The object is to provide a method for building objects . One or more yards may be provided for providing the completed form.

The ship-shaped structure construction method of the present invention for achieving the above object is a construction method for constructing a ship-shaped structure by joining a bow structure, a center structure and a stern structure. The bow structure and the stern structure are made independent, and the stern structure has an upper structure, and the bow structure and the stern structure are built in a mother yard. After that, the stern part structure is joined without going through the central part structure, and the stern part structure is provided with a navigation power source, a propulsion device, these operating devices, and the upper structure having a ship maneuvering bridge. After moving offshore from the mother yard to the subyard, the mobile structure is separated into the bow structure and the stern structure, and the center structure is formed. boat structure by joining the stern structure and the bow structure It is a method which is characterized in that to complete and building things.

  In this case, the bow structure and the stern structure may be constructed in different construction yards or in the same construction yard, as long as they are not construction yard for constructing the central structure. When building in another building yard, the moving structure may be located in either building yard, but if it is not a building yard that builds the central structure, another building yard or offshore connection is also available. It may be. The “another building yard” here may be a building yard for a new ship or a repair yard for a repair ship.

  Here, “navigable” includes not only the case where navigation is possible independently (navigation) but also the case where navigation is possible by being towed by another ship. Also, since the movable structure that can be navigated by connecting the bow structure and the stern structure is configured, the cross section on the connection side of the bow structure and the cross section on the connection side of the stern structure are the same cross-sectional shape It is preferable that In the case where the cross sections are not the same, it is preferable from the viewpoint of reducing the propulsion resistance at the time of navigation to provide a cover so that there is no step in the connection portion or to insert a new connection structure.

  Moreover, you may interpose the navigation structure provided with the fuel tank between the bow part structure and the stern part structure as needed. This navigation structure can also be used as a connection structure when the cross section on the connection side of the bow structure and the cross section on the connection side of the stern structure do not have the same cross-sectional shape. It is good also as a part of additional structure of a bow part structure or a stern part structure.

  According to this method, in a ship-shaped structure of a ship or a ship-shaped offshore structure, a building yard for constructing a bow structure and a stern structure that require relatively high technology, and a center structure that requires relatively low technology By separating the building yard that builds the high-performance ship-shaped structure packed with advanced technology, quickly and lowly, regardless of the construction site, building yard or engineer where the ship-shaped structure is completed. Can be built at cost.

  In addition, the mother yard may specialize in the construction of the stern structure, and the sub yard may specialize in the construction of the central structure. In this case, it can be expected that each yard can be efficiently operated by not mixing different types of blocks, and that a high-performance ship-shaped structure can be constructed at a lower cost.

  In other words, in the conventional technology, when building a ship-shaped structure, the bow and stern that require relatively high skills are also built in the same building yard. Although it was difficult to build a structure, if there is the ability to build a central structure that can be built with relatively low technology, the moving structure that was built and transported in another building yard is transferred to this building yard. To separate the bow structure and the stern structure, and before and after the central structure built in this building yard, the separated bow structure and stern structure are joined to build a ship-shaped structure. By simply doing, you can build a high-performance ship-shaped structure packed with advanced technology.

  In other words, in a construction yard (mother yard) with relatively high technology, design technology such as hull form development and advanced construction such as go iron (bending processing of thick steel plate unique to shipbuilding) and 3D processing Only those bow structures with high added value, or only the stern structures, or both can be built and exported, so technology is required. By doing so, it is possible to maintain a high-tech construction yard without getting involved in low-price competition.

  On the other hand, even in a construction yard (subyard) that has relatively low technology for importing the bow structure and stern structure, the central structure has many parallel parts and is easy to construct and relatively technical. Even if it is low, it can be built efficiently if there is some factory equipment. In this construction yard, a relatively simple and low-cost construction of the central structure is carried out, and the advanced bow structure and the constructed central structure are joined to the advanced stern structure. Because it can build and sell high-performance ship-shaped structures packed with technology, it can overcome low-price competition.

  In other words, from a business model perspective, Motheryard holds two to three standard combinations of bow and stern structures, and selects and constructs appropriate combinations according to customer requirements. To construct a moving structure, provide this moving structure to the subyard, and provide advanced technology such as the main engine, generator, propeller, etc. It is possible to develop a business that packages and sells the main equipment that is required, and the subyard builds the center part of the hull corresponding to these combinations, the bow structure, the center structure, and the stern The substructure is joined to build a ship-shaped structure. Note that one or a plurality of sub yards may be provided to provide a completed form. Alternatively, it is possible to develop the subyard in a franchise manner. In some cases, the moving structure is built in a relatively advanced sub-yard, moved to the mother yard or another sub-yard, and joined to the central structure to create a high-performance ship-shaped structure. A business model of building and selling is also conceivable.

  Then, by dividing and constructing the ship-shaped structure in a plurality of construction yards, it becomes possible to construct a high-performance ship or ship-shaped marine structure in a sub-yard that can efficiently construct the central structure at a low price. Especially on a large ship with a long parallel section, anyone can build it cheaply and quickly anywhere.

  In the above-described method for building a ship-shaped structure, when the ship-shaped structure is a ship that can be self-navigated or towed, or a ship-shaped marine structure that can be self-navigated or towed, a more appropriate construction method and Become. This self-navigable ship or ship-type offshore structure is a propulsion unit only for moving a moving structure separately from a ship having a power source and a propulsion device for navigation on a stern structure or a ship-shaped structure. It may be a ship-shaped structure equipped with.

  In particular, in the case of a self-navigating ship or ship-shaped offshore structure, the bow-stern shape is not easily affected by the ship type, so by separating the bow structure and stern structure, But it can be used effectively. Further, when self-navigation is possible, a relatively advanced technique is required to provide many devices, apparatuses, and facilities for self-navigation, so that the effect of divided construction is great.

  Also, for relatively low-speed vessels such as bulk carriers and tankers, even if they have a standard stern shape and a stern shape with excellent propulsion performance, even if the central structure is different, the resistance performance is Since the bow shape and the self-propelled elements are almost dependent on the stern shape, standardized bow structure and stern structure can be used. It is particularly effective for offshore structures that have little demand for resistance propulsion.

  In the above method for building a ship-shaped structure, it is assumed that the moving structure is capable of self-navigation, so that the offshore movement from the mother yard to the sub yard is caused by the bow structure and the stern structure constructed in the mother yard. Since the mobile structure that is a connecting body can navigate by itself, dredgers are not required and construction costs can be reduced.

  In the above-described ship-shaped structure construction method, when constructing a plurality of the ship-shaped structures, the bow structure and the stern structure are standardized between the ship-shaped structures, and the standardized bow By inserting the standardized or individualized central structure between the stern structure and the stern structure, and constructing these ship-shaped structures, the following effects can be obtained.

  When using a standardized central structure, a standardized central structure is used between the standard bow structure and stern structure of a ship with the same width and length, which is called the same ship series in the prior art. It can be built efficiently by inserting.

  Further, the standardized central part structure may be extended and inserted. In particular, it is efficient if it is an integral multiple of the cargo hold length. In other words, when the length of the central structure is extended from the base ship of the basic length by an integral multiple of the length of the cargo hold (hold or tank), the cargo hold is simply inserted into the hull parallel part. Therefore, the efficiency is further improved.

  In other words, in a ship-shaped structure with a bow, stern, and parallel part of variable length, the bow structure and stern structure have exactly the same structure, and only the length of the central part structure having the parallel part. This makes it possible to quickly and inexpensively provide ship types that meet customer needs.

  Also, when using an individualized central structure, it is common in the prior art to have different bow and tail shapes for ships of the same width but different lengths. If the length is the same, the bow and stern parts are composed of standardized bow and stern structures, and the customer's request is obtained by inserting individual center structures with different lengths. A ship-shaped structure that can answer the above can be built.

  In the above-described method for building a ship-shaped structure, by forming the center structure with a hull parallel structure, the center structure does not have a complicated bent shape, and can be constructed with relatively low technology. Since it becomes a hull parallel part suitable for mass production, it can be constructed by efficiently performing separation, insertion of the central structure, and joining (assembly) in the subyard.

  In the method for building a ship-shaped structure, the center structure is formed of a front joint structure and a hull parallel structure, or formed of a hull parallel structure and a rear joint structure, Alternatively, by forming the front joint structure, the hull parallel part structure, and the rear joint structure, it is possible to deal with more shapes of ship-shaped structures.

  In a ship-shaped structure, when the first cross section of the junction between the bow structure and the stern structure is larger or smaller than the second cross section of the hull parallel part structure, the width direction, the depth direction, and the freeboard One end side of the front joint structure and the rear joint structure is formed with the first cross section, and the other end side is formed with the second cross section, and the width, depth, freeboard, etc. are smoothly changed during this period. By configuring as described above, the combination of the bow structure and the stern structure and the combination of the center structure can be varied, so that it can be applied to many ship-shaped structures.

  For example, regarding the width direction, by standardizing a combination of a bow structure and a stern structure and preparing two or three kinds, a narrow bow structure, a stern structure, and a width are reduced. Combining a wide hull parallel part structure with one or both of a front joint structure and a rear joint structure having a trapezoidal shape in plan view, connected to the end of the parallel hull structure. By this, it becomes possible to cope with many width dimensions.

  In addition, when the first cross section and the second cross section are the same and the length of the ship is increased, one or both of the front joint structure and the rear joint structure of the same cross section are constructed, This can be easily handled by inserting one or both of the front joint structure and the rear joint structure between the bow structure, the stern structure, and the center structure.

  In the above method for building a ship-shaped structure, when building a plurality of the ship-shaped structures, by standardizing the hull parallel part structure, mass production of the hull parallel part structure is possible, so that it can be built efficiently. Become.

And the design method of the ship-shaped structure used as a reference of the present invention is the bow structure, the center structure, the stern structure, or the above-described structure used in the method of building the ship-shaped structure. A part or some combination of the front joint structure, the hull parallel part structure, or the rear joint structure, or some combination thereof, or the whole Is a method characterized by designing.

  According to this method, a bow structure, a center structure, a stern structure, a front joint structure, a hull parallel structure, a rear part, specialized for the above-described method for building a ship-shaped structure Since a split structure such as a joint structure is designed, the above-described method for building a ship-shaped structure can be efficiently implemented.

Further, the divided structure which is a reference of the present invention is a divided structure which is a stern structure which is configured to be a ship-shaped structure in a state where the bow structure and the center structure are directly joined. It is a structure that has an upper structure and is directly joined to the bow structure, and includes a navigation power source, a propulsion device, these operating devices, and a ship maneuvering bridge. It is the division structure characterized by being equipped with the said upper structure which has, and being comprised so that self-navigation is possible.

  By building and selling these divided structures individually, each building yard should be a building yard specialized for the construction of each divided structure, taking into account the technological level and geographical differences. Therefore, it becomes possible to efficiently construct a ship-shaped structure not as individual independent construction yards but as a whole associated construction yard.

In addition, a moving structure which is a reference of the present invention is a state in which the above-described divided structure and the bow structure are directly joined and can be navigated. It is a structure.

  In the case of a ship capable of self-propulsion, this moving structure includes a propulsion unit, a rudder, a power source thereof, an operation device thereof, a residential area in which a crew lives, and a ship operation vessel. Since there is a superstructure with a bridge, self-navigation can be easily achieved.

According to the method for building a ship-shaped structure according to the present invention, a building yard for building a bow structure and a stern structure that require relatively high technology, and a center structure that requires relatively low technology are built. By separating the yard, the mother yard builds the bow and stern in the ship-shaped structure of ships and ship-shaped marine structures, and the construction of the middle part and the junction of the bow, middle part, and stern part are the construction yard. It is possible to provide a completed ship-shaped structure at a lower cost and more efficiently. One or more yards may be provided for providing the completed form.

It is a top view which shows typically the relationship between the ship-shaped structure of the 1st Embodiment of this invention, and a division structure. It is a top view which shows typically constructing a bow part structure and a stern part structure independently. It is a perspective view which shows typically the shape of a bow part structure. It is a perspective view which shows typically the shape of a stern part structure. It is a top view which shows typically the moving structure which connected the bow part structure and the stern part structure, and was able to navigate. It is a top view which shows typically the moving structure which inserted the connection structure. It is a top view which shows typically the moving structure which inserted the structure for navigation. The top view for demonstrating the construction method which isolate | separates a moving structure into a bow part structure and a stern part structure, and inserts a center part structure between a bow part structure and a stern part structure is shown. It is a top view which shows typically the hull form structure assembled by joining a bow part structure and a stern part structure to a center part structure. It is a perspective view which shows typically the shape of a center part structure. It is a top view which shows typically the hull form structure of the ship construction of the ship of the same type ship series constructed by inserting the standardized center part structure between the standard bow part structure and the stern part structure. It is a top view which shows typically the hull form structure of the construction of the ship of the captain change which is constructed by inserting the individualized center part structure between the standard bow part structure and the stern part structure. It is a top view which shows typically the ship-shaped structure constructed | assembled by the center part structure using the front reduction | decrease type front junction structure. It is a top view which shows typically the ship-shaped structure constructed | assembled by the center part structure using the front expansion type front junction structure. It is a top view which shows typically the ship-shaped structure constructed | assembled by the center part structure using the back part rear part junction structure. It is a top view which shows typically the ship-shaped structure constructed | assembled by the center part structure using a rear expansion type rear part junction structure. It is a top view which shows typically the ship-shaped structure built with the center part structure using the front junction structure of a front reduction type | mold, and the rear junction structure of a back reduction type | mold. It is a top view which shows typically the ship-shaped structure built with the center part structure using the front junction structure of a front reduction type | mold, and the rear junction structure of a back expansion type. It is a top view which shows typically the ship-shaped structure built with the center part structure using the front junction structure of the front expansion type, and the rear junction structure of the rear reduction type. It is a top view which shows typically the hull form structure built by the center part structure using the front junction structure of a front expansion type, and the rear junction structure of a back expansion type.

Hereinafter, about the construction method of the boat structure embodiment according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the ship-shaped structure construction method according to the first embodiment of the present invention is a self-navigable or towable ship, or a self-navigable or towable ship-shaped marine structure, etc. Is a construction method for constructing the ship-shaped structure 10 by joining divided structures 11 to 13 such as a bow structure 11, a center structure 12, and a stern structure 13 to the ship-shaped structure 10. As shown in FIG. 2, the bow structure 11 and the stern structure 13 are constructed independently.

  As shown in FIGS. 3 and 4, the bow structure 11 and the stern structure 13 have a large number of curved surfaces, and are divided structures that require advanced technology in terms of propulsion performance. It becomes. In addition, the bow structure 11 is equipped with equipment such as dredging, anchoring devices and mooring devices, and the stern structure 13 is composed of a propulsion device, a rudder, and a main engine (main engine) serving as a power source thereof In addition to the auxiliary equipment, there is an upper structure that has these operating devices, residential areas where crew members live and bridges for maneuvering, and is equipped with a lot of equipment and has advanced technology. Is the body.

  In this way, since it requires a high level of construction technology and is equipped with a lot of equipment, it is located in a place where the equipment can be easily obtained and has a high construction technology (shipyard) ) And build docks. Here, this building yard is called “mother yard”.

  The mother yard, which has this relatively high technology, requires design technology such as hull form development and advanced construction technology such as go iron and 3D processing, and a bow structure that provides high added value. Only 11 or only the stern structure 13 or both of the divided structures 11 and 13 are constructed.

  After the bow structure 11 and the stern structure 13 are constructed in the mother yard, as shown in FIG. 5, the bow structure 11 and the stern structure 13 are connected to move in a navigable manner. The structure 20 is configured. Here, “navigable” includes not only the case where the ship can navigate independently but also the case where the ship can be towed by another ship such as a tugboat. Moreover, you may provide the auxiliary | assistant propulsion device for moving the moving structure 20. FIG. In other words, this self-navigable ship-shaped structure 10 is used only for moving the moving structure 20 separately from a ship having a navigation power source and a propulsion device in the stern structure 13 and a ship-shaped structure. It may be a ship-shaped structure equipped with a propulsion device.

  In the case where the ship-shaped structure 10 to be built is a ship that can be self-navigated, the moving structure 20 is easily provided with the stern structure 13 provided with navigation equipment, equipment, and facilities. Can be self-navigating.

  Even in the case of a ship-shaped offshore structure, it is often possible to tow when completed, and the moving structure 20 connecting the bow structure 11 and the stern structure 13 is also often towable. When the moving structure 20 can be self-navigated or towed, the moving structure 20 that is a connection body of the bow structure 11 and the stern structure 13 constructed in the mother yard can be moved offshore.

  Further, as shown in FIG. 3, the bow structure 11 generally has a bow bulkhead 11a at the bow of the ship so that the bow becomes a watertight structure. In many cases, the structure is easy to maintain buoyancy. Also, as shown in FIG. 4, the stern structure 13 is also generally provided with a watertight partition wall 13a in front of the engine room that houses the main engine, so the stern has a watertight structure, and only the stern structure 13 is provided. However, the structure is easy to maintain buoyancy. Therefore, in many cases, the moving structure 20 that is the connecting body can also navigate while maintaining buoyancy.

  Since the cross section on the connection side of the bow structure 11 and the cross section on the connection side of the stern structure 13 constitute a movable structure 20 that can be connected and navigated, it is preferable to have the same cross-sectional shape. However, even if the cross sections are not the same, it is possible to easily reduce the propulsion resistance by providing a cover so as not to cause a step in the connection portion or by inserting a new connection structure 21 as shown in FIG. Can do.

  The adjustment of the trim posture of the moving structure 20 is performed on the bow trim tank such as a fore peak tank normally provided in the bow structure 11 and the stern trim tank such as an aft peak tank normally provided in the stern structure 13. The amount of ballast water can be adjusted.

  In addition, when it cannot adjust with these trim adjustment tanks, or when the buoyancy as a whole of the moving structure 20 is insufficient, as shown in FIG. 7, as shown in FIG. 7, the bow structure 11 and the stern structure A navigation structure 22 including a fuel tank and a ballast tank is interposed between the body 13 and a buoyancy member (not shown) is temporarily attached to the moving structure 20. When the navigation structure 22 is configured to be a part of the configuration of the ship-shaped structure 10 when completed, or configured to be repeatedly usable in other ship-shaped structures 10, the navigation structure 22 The body 22 is not wasted and the construction cost can be reduced.

  Further, the navigation structure 22 may be a connection structure 21 in a case where the cross section on the connection side of the bow structure 11 and the cross section on the connection side of the stern structure 13 do not have the same cross-sectional shape. The navigation structure 22 may be standardized and may be a part of an additional configuration of the standardized bow structure 11 or the standardized stern structure 13.

  Then, the moving structure 20 is moved to a building yard (referred to as a subyard) where the central structure 12 can be efficiently built, and in this subyard, the moving structure 20 that has moved offshore as shown in FIG. The bow structure 11 and the stern structure 13 are separated, and the center structure 12 is inserted between the bow structure 11 and the stern structure 13, as shown in FIG. The bow structure 10 is constructed by joining and assembling the bow structure 11 and the stern structure 13 to the body 12. The central structure 12 may be constructed in a subyard where the assembly joining is performed, or may be constructed in a construction yard different from the construction yard where the assembly joining is performed. This other construction yard may be a construction yard for a new ship or a repair yard for a repair ship. One or a plurality of sub yards may be provided to provide a completed form of the boat-shaped structure 10.

  In the first embodiment, the central structure 12 is formed of a hull parallel structure 12a. Accordingly, as shown in FIG. 10, the center structure 12 has many parts with the same cross-sectional shape called a hull parallel part, the curved part has a bilge part to some extent, no complicated bending shape, and relatively low technology. Since it is suitable for mass production, it can be built efficiently in a subyard.

  In other words, the central structure 12 has many parallel parts, is easy to construct, and can be efficiently constructed with factory equipment even if the technology is relatively low, so it is a construction yard (subyard) that has relatively low technology. The central structure 12 is constructed between the bow structure 11 and the stern structure 13 obtained by building the central structure 12 having a simple structure at low cost and separated from the moving structure 20 that has moved. Insert and join.

  Then, the mother yard may specialize in the construction of the bow structure 11 and the stern structure 13, and the sub yard may specialize in the construction of the central structure 12. In this case, it can be expected that the entire yard can be efficiently operated by not mixing different types of blocks, and the high-performance ship-shaped structure 10 can be constructed at a lower cost.

  According to this method for building a ship-shaped structure, in the prior art, when the ship-shaped structure 10 is built, the bow portion and the stern portion that require relatively high technology are also built in the same building yard, so that the boat shape structure 10 is relatively low. Although it is difficult to construct in a construction yard having only technology, if there is an ability to construct the central structure 12 that can be constructed with relatively low technology, the transferred moving structure 20 is converted into the bow structure 11 and the stern structure. A ship-shaped structure packed with advanced technology even in the subyard by separating the body 13 and joining the bow structure 11 and the stern structure 13 to the central structure 12 to construct the ship-shaped structure 10. 10 can be built.

  Therefore, the mother yard and the sub yard specialize in the construction of a part of these divided structures 11 to 13, respectively, so that the construction yard with advanced technology can be used as the mother yard without being involved in low price competition. Also, a relatively low technology construction yard can be maintained as a subyard.

  Further, in the present invention, as shown in FIGS. 11 and 12, when the plurality of ship-shaped structures 10, 10A, 10A ′ are constructed, the bow portion is provided between the plurality of ship-shaped structures 10, 10A, 10A ′. The structure 11 and the stern structure 13 are standardized. As shown in FIG. 11, the standardized central structure 12 is inserted between the standardized bow structure 11 and the stern structure 13 to construct these ship-shaped structures 10. Alternatively, as shown in FIG. 12, between the standardized bow structure 11 and stern structure 13, the individual central structures 12A and 12A ′ are inserted, and the boat-shaped structures 10A and 10A ′ are inserted. Build.

  In the standardization of the bow structure 11 and the stern structure 13, in the case of a ship capable of self-navigation, the bow stern shape is not easily affected by the ship type, so the bow structure 11 and the stern structure 13 By standardizing, it can be used between different ship types. Especially for relatively low-speed bulk carriers and tankers, even if the same stern shape is adopted, the resistance performance largely depends on the stern shape, and the self-propulsion element almost depends on the stern shape. The effect of using 11 and the stern structure 13 is great. It is particularly effective for offshore structures that have little demand for resistance propulsion.

  As shown in FIG. 11, when using a standardized central structure 12, a bow structure in which ships having the same width and length, which are called the same ship series in the prior art, are standardized and can be used in common. By inserting the center part structure 12 which is standardized and made available for common use between the stern part 11 and the stern part structure 13, it can be constructed very efficiently.

  In addition, as shown in FIG. 12, when using individual central structures 12A and 12A ′ that are standardized but whose ship length is changed, in the related art, the ship width is the same for ships having different lengths. However, it is customary to prepare different ship shapes, but when the length is the same but the width is the same, the bow and stern parts are standardized and the bow structure 11 and stern parts are standardized. It is possible to build a ship-shaped structure 10A, 10A ′ that can respond to the customer's needs by inserting individual central structures 12A, 12A ′, which are composed of the structure 13 and are not standardized and have different lengths. .

  Further, the standardized central structure 12 may be extended and inserted. In particular, it is efficient if it is an integral multiple of the cargo hold length. In other words, when the length of the central structure 12 is extended from a standard ship (base ship) of the basic length by an integral multiple of the length of the cargo hold (hold or tank), the cargo hold is inserted into the hull parallel part. The construction efficiency is further improved because of the simple structure.

  That is, in the boat-shaped structure 10 having the bow portion, the stern portion, and the parallel portion of the variable length, the bow portion structure 11 and the stern portion structure 13 have the same configuration, that is, a standardized type, and a parallel portion. By changing the length of only the central structure 12 having the hull shape, it is possible to provide the ship-shaped hull-shaped structures 10A and 10A ′ that meet the needs of the customer quickly and at a low price.

  In this case, the mother yard holds two to three types of combinations of the standard bow structure 11 and stern structure 13, selects and constructs combinations according to customer requirements, and moves the structure 20. The main equipment that requires advanced technology such as main business, generator, propeller, etc., providing the moving structure 20 to the subyard, instructing the outline, shape, and connection method of the central structure 12 The sub-yard can build a center structure 12 (or 12A, 12A ′) corresponding to a combination of these to produce a bow structure. 11, the center structure 12 (or 12A, 12A ′) and the stern structure 13 are joined together to construct the boat-shaped structure 10 (or 10A, 10A ′).

  Therefore, according to this method, by dividing and constructing the ship-shaped structures 10, 10A, and 10A 'in a plurality of construction yards, a high-performance ship or ship-shaped marine structure can be formed at a low price and the central structure 12 can be formed. It can be built in a subyard that can be built efficiently. This effect is particularly great on large ships with long parallel sections.

  Next, the construction method of the ship-shaped structure of 2nd Embodiment is demonstrated. In this construction method, not only the hull parallel part structure 12a but also the front joint structure 12b or the rear joint structure 12c are added to the center structure 12 as shown in FIGS. , Formed by the front joint structure 12b and the hull parallel part structure 12a, or, as shown in FIGS. 15 and 16, formed by the hull parallel part structure 12a and the rear joint structure 12c, or As shown in FIGS. 17-20, it forms with the front junction structure 12b, the hull parallel part structure 12a, and the rear junction structure 12c. With this construction method, it is possible to deal with ship-shaped structures 10B to 10I having more shapes.

  In the ship-shaped structures 10B to 10I, when the first cross section of the junction between the bow structure 11 and the stern structure 13 is larger or smaller than the second cross section of the hull parallel structure 12a, the width direction, depth With respect to the vertical direction, the dry joint, etc., one end side of the front joint structure 12b and the rear joint structure 12c is formed with the first cross section, and the other end side is formed with the second cross section. As shown in FIG. 13 to FIG. 20, various combinations of the bow structure 11 and the stern structure 13 and the combination of the center structure 12 can be made by smoothly changing the configuration of the freeboard and the like. It becomes possible to cope with a large number of ship-shaped structures 10B to 10I.

  For example, with respect to the width direction, by preparing only two or three kinds of standard combinations of the bow structure 11 and the stern structure 13, the bow structure 11 and the stern structure 13 having a narrow width are prepared. In contrast, a wide hull parallel part structure 12a and a trapezoidal front joint structure 12b and a rear joint structure which are connected to the end of the hull parallel part structure 12a in a plan view. By combining one or both of the bodies 12c, a large number of width dimensions can be accommodated.

  In addition, when the first cross section and the second cross section are the same and the length of the ship is increased, one or both of the front joint structure 12b and the rear joint structure 12c having the same cross section are constructed. Thus, it is easy to insert one or both of the front joint structure 12b and the rear joint structure 12c between the bow structure 11, the stern structure 13, and the hull parallel structure 12a. It becomes possible to respond.

  Furthermore, even when the front joint structure 12b and the rear joint structure 12c are difficult to standardize by standardizing the hull parallel part structure 12a when building the plurality of ship-shaped structures 10B to 10I, Mass production of the hull parallel part structure 12a becomes possible, and it becomes possible to construct efficiently.

The ship-shaped structure design method used as a reference of the present invention is the bow structure 11 or the center structure used in the method for building a ship-shaped structure according to the first and second embodiments. 12, 12A, 12A ', or the stern structure 13, or the front joint structure 12b or the hull parallel structure used in the method for constructing the boat-shaped structure of the second embodiment. This is a method of designing the body 12a or the rear joint structure 12c.

  According to this method, the bow structure 11, the center structure 12, the stern structure 13, the front part, which are specialized in the construction method of the ship-shaped structure according to the first and second embodiments described above. Since the split structures 11 to 13 such as the joint structure 12b, the hull parallel part structure 12a, and the rear joint structure 12c are designed, the construction method of the ship-shaped structure according to the first and second embodiments described above is used. Can be implemented efficiently.

Further, the divided structures 11 to 13 used as a reference of the present invention are the bow structure 11 or the center structure used in the method for constructing a boat-shaped structure according to the first and second embodiments. 12, 12A, 12A ', or the stern structure 13, or the front joint structure 12b or the hull parallel structure used in the method for constructing the boat-shaped structure of the second embodiment. The body 12a or one or several assembled structures of the rear joint structure 12c.

  By building and selling these divided structures 11 to 13 individually, each building yard is specialized for building each divided structure 11 to 13 in consideration of the technical level and geographical differences. Thus, the ship-shaped structures 10 to 10I can be efficiently constructed not as individual independent construction yards but as a whole associated construction yard.

Further, the moving structure 20 which is a reference of the present invention is the moving structure 20 used in the construction method of the ship-shaped structure 10 or the bow structure 11, the center structure 12, and the stern structure 13. Is a navigable moving structure 20 formed by connecting the bow structure 11 and the stern structure 13 which become ship-shaped structures 10 to 10I.

  In the case where the mobile structure 20 is a self-navigable ship, the stern part structure 13 includes a propulsion device, a rudder, a power source thereof, an operation device thereof, a residential area where a crew lives, and a ship operation. Since there is a superstructure having a bridge for the vehicle, it can be easily self-navigated.

According to the above-described method for building a boat-shaped structure, the construction yard for constructing the bow structure 11 and the stern structure 13 that require relatively high technology is the mother yard, and the central structure that requires relatively low technology. By separating the building yard for constructing the body 12 as a subyard, the ship-shaped structure 10 to 10I of a ship or a ship-shaped marine structure can be selected regardless of the building place, the building yard or the engineer where the ship-shaped structure 10 to 10I is completed In addition, a high-performance ship or ship-shaped offshore structure packed with advanced technology can be constructed quickly and at low cost.

According to the method of building a ship-shaped structure of the present invention, in a ship-shaped structure of a ship or a ship-shaped marine structure, a building yard for building a bow structure and a stern structure that require relatively high technology, The mother yard builds the bow and stern by separating the building yard that builds the low-tech central structure. The middle yard and the junction of the bow, middle, and stern are built yard. Can be provided at low cost and efficiently to provide a complete form of a ship-shaped structure, and a method for building a ship-shaped structure such as a large number of ships and ship-shaped marine structures, a method for designing a ship-shaped structure, and It can be used for these ship-shaped structures.

10, 10A, 10A ', 10B to 10I Hull form building 11 Bow structure (split structure)
12, 12A, 12A 'center structure (split structure)
12a Hull parallel part structure (split structure)
12b Front joint structure (split structure)
12c Rear joint structure (split structure)
13 Stern structure (split structure)
20 Moving structure

Claims (6)

A construction method for constructing a boat-shaped structure by joining a bow structure, a center structure, and a stern structure, wherein the bow structure and the stern structure are made independent, and the stern part A structure having an upper structure, the bow structure and the stern structure being built in a mother yard, and joined without going through the center structure , the stern structure The mobile yard was moved over the sea from the mother yard to the sub yard with a self-navigating mobile structure comprising a navigational power source and propulsion device, these operating devices, and the upper structure having a ship maneuvering bridge. Thereafter, the moving structure is separated into the bow structure and the stern structure, and the bow structure and the stern structure are joined to the center structure to construct a ship-shaped structure. A ship-shaped structure construction method characterized by being completed by   2. The method for constructing a hull-shaped structure according to claim 1, wherein the hull-shaped structure is a self-navigable or towable ship, or a self-navigable or towable ship-shaped marine structure.   When constructing a plurality of the boat-shaped structures, the bow structure and the stern structure are standardized between the boat-shaped structures, and the standardized bow structure and stern structure are 3. The ship-shaped structure construction method according to claim 1 or 2, wherein the center-shaped structure standardized or individualized is inserted therebetween to construct the ship-shaped structure.   The said center part structure is formed with a hull parallel part structure, The construction method of the hull form structure of any one of Claims 1-3 characterized by the above-mentioned. The central structure is formed by a front joint structure and a hull parallel structure, or is formed by a hull parallel structure and a rear joint structure, or the front joint structure and the hull. It forms with a parallel part structure and a rear part junction structure, The construction method of the ship-shaped structure of any one of Claims 1-3 characterized by the above-mentioned.   6. The method for constructing a hull-shaped structure according to claim 4, wherein the hull parallel part structure is standardized when constructing a plurality of the hull-shaped structures.

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