JP3400932B2 - Construction method of floating structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a floating structure capable of easily constructing a hull floating on the sea, a river, a lake, a floating pier, a floating dog, a heliport, etc. on the sea or on the water. Is.

[0002]

2. Description of the Related Art Conventionally, when building hulls floating on the sea, rivers, lakes, etc., floating piers, floating dogs, heliports, etc. The hull was constructed by combining the hulls. In addition, when constructing a floating pier, floating dog, heliport, etc., to some extent, each part constructed at the factory etc. is divided and installed on the sea, etc., suspended by a crane etc. at that place and floated on the sea or on the water, Furthermore, each part was connected to build a floating pier.

However, constructing a hull, a floating jetty, etc. in this way requires a long construction period and increases manufacturing costs. And the hull and the floating pier of the size and shape that meet various requests,
It couldn't be easily constructed in a short period of time.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed in view of the above-mentioned points, and an object of the present invention is to ship hulls, floating piers, floating dogs, or sea or water. It is an object of the present invention to provide a method for constructing a levitating structure that can be easily constructed in a short period of time on the sea or water, so that the levitating structure of various sizes that can be used as a heliport or the like can be constructed.

[0005]

In order to effectively achieve the above-mentioned object, the present invention has the following constitution. That is, the method for constructing a floating structure according to the first aspect of the present invention is a bottomed rectangular box having an open upper part, in which brackets are provided so as to project in parallel from one end or both ends, and an outer peripheral portion is formed. At least two floating box bodies, each of which has a mounting member for mounting a closing plate near the lower end, are floated on the sea or on the water, and the bracket of one floating box body and the bracket of the other floating box body are butted against each other. , Connecting the brackets butted against each other with a connecting plate, and closing a flat space surrounded by the connecting outer plates of the connected floating plates and the connecting plates and the brackets on the mounting members of the floating boxes. The plate is placed and welded to be closed, and at least two floating box bodies are connected in a row so that a floating structure floating on the sea or water can be constructed. .

According to a second aspect of the present invention, there is provided a method for constructing a levitation structure, which is in the shape of a rectangular box with a bottom having an open upper portion, in which brackets are projected in parallel from one end or both ends and the outer circumference is provided. At least two flotation boxes, each of which is provided with a mounting member for mounting a closing plate near the lower end of the section, are floated in parallel at a predetermined interval on the sea or on water, and both sides of the flotation boxes are placed facing each other. By placing the side blocking plates on the members and welding them, it is possible to construct a levitation structure in which at least two levitation boxes are connected in parallel and float on the sea or water. This is the configuration.

According to a third aspect of the present invention, there is provided a method for constructing a levitation structure, which is in the shape of a rectangular box with a bottom having an open upper part, in which brackets are projected in parallel from one end or both ends and the outer circumference is provided. Floating box bodies provided with a mounting member for mounting the closing plate near the lower end of the part are floated in the vertical direction on the sea or on the water at predetermined intervals in the horizontal direction and the brackets are abutted against each other in the vertical direction. The brackets are connected to each other with a connecting plate, and the plane space between the levitation box bodies arranged in the lateral direction is closed by connecting a large plate to the mounting member and welding the levitation boxes. A levitation structure that floats on the sea or water is closed by placing a blocking plate on each mounting member and welding the flat space surrounded by the opposing outer surface of the body and each connecting plate and each bracket. I was able to build A structure characterized by.

According to a fourth aspect of the present invention, there is provided a method for constructing a levitation structure, comprising: a rectangular box having a bottom and an opening at the top, wherein brackets are provided so as to extend in parallel from both front and rear ends, and an outer peripheral portion. A floating box body having a mounting member for mounting the closing plate near the lower end of the box is floated on the sea or water, and has a bottomed rectangular box shape with the top open, and the bracket is parallel to both sides of one end. And the bottom portion is provided on the upper side of the other end with an inclination, and the placing member for placing the closing plate is provided on the outer peripheral portion other than the outer peripheral portion of the inclined other end. Floating ship boxes for two hulls, which are provided at the same height as the mounting members, are floated on the sea or water before and after the floating box, and the brackets at the front and rear ends of the floating box and each floating ship box Butt against the brackets on the body and connect the brackets at the connection plate , A plane space surrounded by the outer surfaces of the connected levitation ship boxes and the levitation box body facing each other, the connection plates and the brackets, and the closure plates on the levitation ship boxes and the mounting members of the levitation box bodies. The construction is characterized in that it is possible to construct a levitation structure as a hull that floats on the sea or water by closing it by mounting and welding.

According to a fifth aspect of the present invention, there is provided a method for constructing a levitation structure, which is in the shape of a rectangular box with a bottom having an open upper part, in which brackets are projected in parallel from both front and rear ends, and an outer peripheral portion is formed. A bottomed rectangular shape in which a plurality of floating box bodies, each of which is provided with a mounting member for mounting a closing plate near the lower end of the floating box, are arranged at predetermined intervals in the front, rear, left, and right to float on the sea or water, and the top is opened. The bracket is box-shaped and protrudes in parallel from both sides of one end, and the bottom surface is provided on the upper side of the other end with an inclination, and the closing plate is placed on the outer peripheral portion other than the outer peripheral portion of the inclined other end. A floating member for a plurality of hulls provided with a mounting member for use at the same height as the mounting member for the floating container described above is floated on the sea or on the water. Floating box body floats on the sea or water so that it is continuous with the floating box body Judges and butt a bracket of the bracket and the buoyant vessel main body at both ends of the buoyant box body of each row, connecting each bracket between which butt connection plate,
Further, the plane space between the levitation boxes arranged in the lateral direction is closed by placing and welding the closing large plate on the placing member, and the facing outer surfaces of the connected levitation boxes and the connecting plates and A flat space surrounded by the brackets and a flat space surrounded by the outer surfaces of the connected floating boat boxes and the floating box body, the connecting plates, and the brackets are closed on the mounting members. The structure is characterized in that it is possible to construct a levitation structure as a hull that floats on the sea or water by closing the plate by placing and welding it.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. In each of the attached plan views, the floating box body 2 is drawn with intersecting diagonal lines for convenience. Figure 1
As shown in FIG. 2, reference numeral 1 denotes an example of a levitating structure according to the present invention. The levitating structure 1 is entirely made of a steel material, and is a floating pier or a floating dog that floats on the sea or water. It can be used as a basic structure such as on the sea or on a heliport, and two floating boxes 2 are connected in front and back.

Each levitation box body 2 is a rectangular box shape having a bottom with an open top, and an example of each dimension is a height of 2.5.
m, width 2.5 m, length 10 m, thickness 16 mm, and rectangular brackets 3 (height 2.5 m, length 1 m, thickness 16 mm) project in parallel from both ends (or both ends). Further, at a height position of about 0.8 m from the bottom surface part 4, the mounting member 5 for mounting the closing plate is provided over the entire circumference of the outer peripheral surface (outer peripheral part) 6 or on the front and rear outer surfaces 7 and 8. Is fixed horizontally by welding or the like. The mounting member 5 is made of a square steel material of 600 mm square. Of course, the mounting member 5 may be a steel plate. Alternatively, the outer peripheral surface (outer peripheral portion) 6 may be fixed intermittently over the entire circumference or to the front and rear outer surfaces 7 and 8 by welding. The dimensions of the floating box body 2, the bracket 3, and the mounting member 5 are not limited to the above-exemplified dimensions, and various sizes can be freely set and changed.

In order to construct the levitation structure 1 (see FIG. 2) with the levitation boxes 2, first, two levitation boxes 2 are floated on the sea or water with a crane or the like, and the levitation boxes 2 are arranged in a line. The rear bracket 3 of the front floating box body 2 and the front bracket 3 of the rear floating box body 2 are abutted against each other, and both floating box bodies 2 are temporarily fixed by a temporary fixing member (not shown).

Next, the butted brackets 3 are connected to each other by welding or high tension bolts and nuts (the same applies to the following examples) from inside by the connecting plate 9.
When connecting with high tension bolts and nuts, through holes for high tension bolts are formed in each bracket 3 and the connection plate 9. In addition, seal water is applied with packing to prevent water from entering through the insertion hole. The connection plate 9 is a steel plate having a length of 1.7 m, a width of 2 m, and a thickness of 16 mm, and has a size that covers the upper portions of the mounting members 5 of the brackets 3 that are abutted with each other. Of course, the connecting plate 9 may be of any size as long as it can block the water (or seawater) from the abutting portion 10 of the bracket 3 so as not to enter the inside.

A flat space 11 surrounded by the facing outer surfaces (front outer surface 7 and rear outer surface 9) of the two floating box bodies 2 connected as described above, and the connecting plates 9 and the brackets 3.
Is closed by placing the closing plate 12 on the placing members 5 of both the floating box bodies 2 and welding. Finally, the temporary fixing member (not shown) is removed.

By thus connecting the two levitation boxes 2 in the vertical direction, the levitation structure 1 floating above the sea or above the water can be easily constructed. This levitating structure 1
Can be used as a simple floating pier or the like by sealing the upper opening of each levitation box body 2 with a steel plate or the like. In addition, by connecting two or more floating box bodies 2 in a line as described above, it is possible to use it for a floating bridge or the like.

FIG. 3 shows another example of the floating structure 1. In this example, the floating box bodies 2 having the above-mentioned structure are placed in parallel at intervals of 2.5 m by a crane or the like on the sea or on the water. Float, and each floating box body 2 is temporarily fixed by a temporary stop member (not shown). Then, on the mounting member 5 fixed to the opposite side surface portions 13 of the both levitation boxes 2, a length of 2, 5 m and a width of 1
A 0 m (or 12 m) side blocking plate 14 is placed, and both side portions 14a of this side blocking plate 14 are welded to the floating box 2
It is fixed to the side surface part 13 and the mounting member 5. Finally, the temporary fixing member (not shown) is removed. The total length of the side blocking plate 14 may be the same as the total length of the floating box body 2, or may be the length including the length of one of the brackets 3, or the lengths of both brackets 3. There is no restriction on the length of the entire length (the same applies to the following examples). Also, the side blocking plate 1
The width dimension of 4 may be freely designed (the same applies to the following examples).

In this example, the two levitation boxes 2 are connected in the lateral direction as described above, so that the levitation structure 1 having a wide width and floating on the sea or water can be easily constructed. This floating structure 1 can also be used as a simple floating pier or the like by sealing the upper opening of each floating box body 2 with a steel plate or the like. Also, as described above, 2
By connecting more than one floating box body 2, it can be used for a floating bridge having a wider width.

FIG. 4 shows another example of the floating structure 1, and in the case of this example, the four floating box bodies 2 having the above-mentioned structure.
Are sequentially lifted by a crane or the like and floated on the sea or water as shown. In this case, in the same manner as in FIG. 3, the horizontal direction is arranged at an interval of 2.5 m, and the vertical direction is floated so that the brackets 3 of the levitation boxes 2 are butted against each other. It is temporarily fixed by a stop member (not shown).

Then, the butted brackets 3 are connected to each other by the connecting plate 9 as described above, and the plane space 15 between the levitation boxes 2 arranged in the lateral direction is set to the side surface portion 13 of each levitation box 2.
The blocking large plate 16 is mounted on the mounting member 5 provided on the both sides 1
6a is welded to the side surface portion 13 of the levitation box body 2 and the placing member 5 to close the floating box body 2. Finally, a temporary stop member (not shown)
Get rid of.

Further, the flat space 11 surrounded by the facing outer surfaces (front outer surface 6, rear outer surface 7) of each connected floating box body 3, each connecting plate 9 and each bracket 3 is placed as described above. The closing plate 12 is placed on the member 5 and welded to close it. In this way, by connecting the four levitation boxes 3 as shown in the figure, 7.5 m × 24 m
(Or 20 m) wide floating structure 1 can be easily constructed on the sea or on the water (on the sea).

This levitating structure 1 can also be used as a foundation portion of a heliport, a floating jetty, or the like. Further, by connecting the six or more levitation boxes 2 as described above, the levitation structure 1 having a wider width can be used. It is preferable that two or more levitation boxes 2 are connected in an even number.

5 to 6 show another example of the floating structure 1, which is used as a hull, and has the above-described structure (see FIG. 1). 1 and two levitation ship boxes 17 (see FIG. 7) to be described next are connected to each other.

The levitation ship box body 17 (see FIG. 7) is in the shape of a bottomed rectangular box having an open top, and has brackets 18 projecting from both sides of one end 17a in parallel and the other end 17 thereof.
The bottom part 19 is tilted on the upper side 17c of b to form a ship bottom 20 as a bow or stern, and a closing plate is placed on the outer peripheral part of the levitation ship box body 17 other than the tilted ship bottom 20. The mounting member 5 is provided at the same height as the mounting member 5 of the floating box body 2 described above.

The length of the levitation ship box 17 is 11 m (12 m including the bracket 18), width 2.5 m, and height 2.
It is 5 m and has a thickness of 16 mm. Of course, the design of each dimension may be changed to other dimensions. In this case, it is preferable that the width dimension and the height dimension of the levitation ship box body 17 are matched with the width dimension and the height dimension of the levitation box body.

The two floating ship boxes 17 and one of the floating ship boxes 17 which becomes the bow by sequentially lifting the floating box body 2 by a crane or the like and floating it on the sea or water as shown in the figure.
Bracket 18 and the front bracket 3 of the floating box 2
And the brackets 3 on the rear side of the levitation box body 2 and the brackets 18 of the other levitation levitation ship box body 17, which are the stern, are arranged so that Stop and fix.

The outer surfaces (front outer surface 7, rear outer surface 8) of the connected levitation box body 2 and the levitation ship box body 17 in which the abutting brackets 3 and 18 are connected to each other by the connection plates 9 as described above, and further confront each other are connected. The outer space (front outer surface 21, rear outer surface 22) and the flat space 11 surrounded by the connecting plates 9 and the brackets 3 are closed on each mounting member 5 as described above.
It is closed by placing and welding. Finally, the temporary fixing member (not shown) is removed.

By constructing in this way, the floating structure 1 which can be used as a hull having a total length of 36 m, a width of 2.5 m and a height of 2.5 m can be easily constructed on the sea or on the water. Of course, two or more levitation boxes 2 may be connected to make a hull longer than the above example.

8 to 10 show another example of the floating structure 1
The floating structure 1 of this example is used as a hull wider than the hull described above, and four floating boxes 2 and a floating ship box 17 having the above-described configuration are shown in the floating box. Body 2
It is configured by connecting 8 pieces of 4 pieces each before and after. The construction method of the floating structure 1 of this example will be described below.
The procedure of the construction method is not limited to the procedure described below, and any other procedure can be freely used.

First, the levitation ship boxes 17 are floated one by one on the sea or on the water in parallel at a distance of 2.5 m by four cranes in a lateral direction. Next, the four floating box bodies 2 are respectively lifted by a crane or the like so as to be connected to the rear portion of the floating vessel box bodies 17 and floated on the sea or water. Further, the remaining four levitation ship boxes 17 are respectively lifted by a crane or the like, and each levitation box body 2 is lifted.
The rear part and the rear part of the levitation ship box body 17 are floated on the sea or water so as to face each other, and fixed by a temporary fixing member (not shown) as described above.

Each levitation ship box body 17 and the levitation box body 2, and the levitation ship box bodies 17 adjacent to each other in the lateral direction and the levitation box bodies 2 are floated by respective temporary fixing members (not shown). The bracket 18 of the ship box body 17 and the bracket 3 of the levitation box body 2 are fixed so as to abut against each other, and
The space between the levitation ship boxes 17 in the lateral direction and the levitation box body 2 are fixed in order to keep them constant (2.5 m intervals in this example).

Next, the abutted brackets 3 and 18 are connected to each other by the connecting plates 9 as described above, and further facing each other, the outer surface (front outer surface 6 and rear outer surface 7) of the connected floating box body 3 and each floating ship box. The outer space (front outer surface 21, rear outer surface 22) of the body 17 and the plane space 11 surrounded by the connection plates 9 and the brackets 3 are mounted on the mounting members 5 by the blocking plates 12 as described above. It is closed by welding.

Next, a plane space 15 between the levitation boxes 2 arranged in the lateral direction and a plane space 23 between the levitation ship boxes 17 are provided.
The side portion 13 of each levitation box body 2 and each levitation ship box body 17
The closing large plates 16 and 25 are placed on the placing member 5 provided on the side surface portion 24 between them. The large blocking plate 16 provided between the levitation boxes 2 is 12 m long and 2.5 m wide, and the large blocking plate 25 provided between the levitation ship boxes 17 is 10 m long and 2.5 m wide. And are arranged as shown. The respective closing large plates 16 and 25 are in contact with the closing large plates 16 and 25, and both side portions 16a of each closing large plate 16 and the floating box body 2.
Of the side surface portion 13 and the mounting member 5, and the large closing plates 25.
By welding both side portions 25a of the wing, the side surface portion 24 of the levitation ship box body 17 and the mounting member 5, the respective plane spaces 15,
Block 23. Then, the respective levitation ship boxes 17 and the levitation box bodies 2 as well as the respective temporary fastening members (not shown) that temporarily fix the levitation ship boxes 17 and the levitation box bodies 2 adjacent to each other in the lateral direction are removed. .

By constructing in this way, the floating structure 1 which can be used as a hull having a total length of 36 m, a width of 17.5 m and a height of 2.5 m can be easily constructed on the sea or on the water (sea). . Of course, the number of the floating box body 2 and the floating ship box body 17 connected in the vertical direction and the horizontal direction is not limited to the above-mentioned example, and can be reduced or increased to construct a smaller hull than this example. Alternatively, it is free to build a larger hull than this example.

[0034]

As described above, according to the method for constructing a levitating structure according to the first aspect of the present invention, a long levitating structure in which the levitating boxes are connected in the longitudinal direction can be easily constructed in a short time. Since it can be used, it can be used as the foundation part of a floating bridge or jetty, and can be constructed at a low price.

Further, in the method for constructing a levitation structure according to the second aspect of the present invention, since the levitation box bodies are connected in parallel in the lateral direction via the side blocking plates and the like, the levitation with a wide width is carried out. The structure can be constructed easily and in a short time, can be used as a foundation part of a floating bridge or a jetty, and can be constructed at a low price.

Further, in the method for constructing a floating structure according to claim 3 of the present invention, a heliport having a wide landing area, and a floating structure serving as a foundation such as a wide jetty or floating bridge can be easily constructed in a short period of time. Therefore, the construction cost can be significantly reduced, and the structure can be used in a wide range of fields as a floating structure having a large area floating above the sea or water.

Further, in the method for constructing a levitating structure according to claim 4 of the present invention, a hull such as a small cargo ship or a gravel carrier can be easily constructed in a short period of time, and the ship manufacturing cost is greatly increased. It can be reduced.

Further, in the method for constructing a floating structure according to claim 5 of the present invention, the hull of a large vessel such as a tanker or a freighter can be easily constructed in a short period of time, and the ship manufacturing cost is greatly reduced. can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a floating box body according to the present invention.

FIG. 2 is a plan view showing an example of a floating structure according to the present invention.

FIG. 3 is a plan view showing another example of a floating structure according to the present invention.

FIG. 4 is a plan view showing another example of the floating structure according to the present invention.

FIG. 5 is a side view showing another example of the floating structure according to the present invention.

FIG. 6 is a plan view showing another example of the floating structure according to the present invention.

FIG. 7 is a perspective view showing an example of a levitation ship box body according to the present invention.

FIG. 8 is a plan view showing still another example of the floating structure according to the present invention.

9 is a cross-sectional view of FIG.

FIG. 10 is an explanatory diagram showing a state between levitation ship boxes in the lateral direction or between levitation boxes.

[Explanation of symbols]

1 Floating structure 2 floating box 3 brackets 4 bottom 5 Placement member 6 Outer peripheral part (outer peripheral surface) 7 front outside 8 rear exterior 9 Connection board 11 plane space 12 Block 15 plane space 16 large block 16a both sides 17 Float Box 18 bracket 19 Bottom part 23 Plane space 24 Side 25 Blocked large plate

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B63B 9/00 B63B 35/44 E01D 15/14

Claims (5)

(57) [Claims] 1. A mounting member for mounting a closing plate, which is in the shape of a rectangular box with a bottom having an open upper portion, has brackets protruding in parallel from both sides of one end or both ends, and near the lower end of the outer peripheral portion. At least two floating box bodies provided with are floated on the sea or on the water, the brackets of one floating box body and the brackets of the other floating box body are abutted, and the brackets that are abutted by the connection plate are connected to each other, A flat space surrounded by the facing outer surfaces of both connected floating boxes and each connecting plate and each bracket is closed by placing a closing plate on the mounting members of both floating boxes and welding it. At least 2
A method for constructing a levitation structure, characterized in that the above-mentioned levitation boxes are connected in a row so that a levitation structure that floats on the sea or water can be constructed. 2. A mounting member for mounting a closing plate, which is in the shape of a rectangular box with a bottom having an open upper portion, has brackets protruding in parallel from both sides of one end or both ends, and near the lower end of the outer peripheral portion. At least two floating box bodies provided with the above are floated in parallel at a predetermined interval on the sea or water, and the side blocking plates are placed on the mounting members on the opposite sides of both the floating box bodies and welded. By so doing, it is possible to construct a levitation structure that floats on the sea or water by connecting at least two levitation boxes in parallel. 3. A mounting member for mounting a closing plate, which is in the shape of a rectangular box with a bottom having an open upper portion, has brackets protruding in parallel from both sides of one end or both ends, and near the lower end of the outer peripheral portion. Floating box bodies provided with are floated in the horizontal direction on the sea or on the water at a predetermined interval in the horizontal direction and the brackets are abutted against each other in the vertical direction, and the abutted brackets are connected with a connecting plate, and further in the lateral direction. The plane space between the arranged floating boxes is closed by placing a large plate on the mounting member and welding it, and by the facing outer surface of each connected floating box, each connecting plate and each bracket. A floating structure characterized in that the enclosed planar space is closed by placing a blocking plate on each mounting member and welding the closed space, so that a floating structure floating on the sea or water can be constructed. How to build. 4. A rectangular box-like box with a bottom having an open top, with brackets protruding in parallel from both the front and rear ends, and a mounting member for mounting a closing plate near the lower end of the outer peripheral portion. The floating box provided is floating in the sea or on the water and has a rectangular box shape with a bottom that opens at the top, with brackets protruding parallel from both sides of one end, and the bottom part on the upper side of the other end. And a mounting member for mounting the closing plate on the outer peripheral portion other than the outer peripheral portion of the other end of the slant at the same height as the mounting member of the floating box body. Float the levitation box for each hull on the sea or water in front of and behind the levitation box, but the brackets at the front and rear ends of the levitation box and the brackets of each levitation box are butted together Connect each other and confront each connected levitation ship box and levitation box. The plane space surrounded by the outer surface, the connecting plates and the brackets is closed by placing a welding plate on each levitation ship box and a mounting member of the levitation box body and welding the sea surface or water. A method for constructing a levitating structure, characterized in that a levitating structure as a floating hull can be constructed. 5. A rectangular box-like box with a bottom having an open upper part, in which brackets are projected in parallel from both front and rear ends, and a mounting member for mounting a closing plate is provided near the lower end of the outer peripheral portion. A plurality of floating boxes provided are placed in the front, rear, left, and right at predetermined intervals, floated on the sea or water, and have a rectangular box shape with a bottom that opens at the top. In addition, the bottom portion is provided on the upper side of the other end with an inclination, and a placing member for placing the closing plate is provided on the outer peripheral portion other than the outer peripheral portion of the other inclined end. Floating ship box body for a plurality of hulls provided at the same height position as the mounting member, floating on the sea or water so as to be connected to the floating box bodies on both ends of each row floated on the sea or water,
The brackets of each levitation box body and the brackets of the levitation box body on both ends of each row are abutted with the brackets of each levitation vessel box body. The plane space between the floating boxes is closed by placing a large plate on the mounting member and welding.
And a flat space surrounded by the facing outer surface of each connected floating box, each connecting plate and each bracket, and the facing outer surface of each connected floating vessel box and floating box, each connecting plate and each bracket A flat space surrounded by and is closed by placing a blocking plate on each mounting member and welding the closed space, and it is possible to construct a floating structure as a hull that floats on the sea or water. Method of constructing a floating structure.