JPH04161507A - Floating body structure - Google Patents

Abstract

PURPOSE:To ensure stabilized durability by a method wherein unit floating bodies made up by uniting thin concrete floating boxes with rod-like members inserted through the boxes with compressive force given are made up in one structure by connecting the bodies one another, utilizing the rod-like members. CONSTITUTION:A plurality of thin concrete floating boxes 5 are arranged so that they are flush with one another, and a number of sheaths inserted horizontal therein are penetrated with rod-like members 7 that are in the same number. When inserting, the rod-like members 7 in half the total number are inserted from one side through holes provided on bearing boards arranged in the breadthwise direction on the upper and the lower parts on the opposite ends of the floating boxes 5 that are not adjoining each other, and are made to project beyond the through holes of the bearing boards on the other side. Nuts are applied to the rod-like members for tightening, and an unit floating body 1 is made up with compressive force given. Then a mooring pier 2 in a floating structure is constructed of the unit floating bodies 1 that are fixed one another to form a united body. Thereby stabilized durability is ensured for the structure with tensile strength increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floating structure constructed as a mooring berth or the like.

[Prior Art] This type of floating structure is disclosed, for example, in Japanese Utility Model Publication No. 60-5063, and is constructed by connecting unit floating bodies made of concrete and formed into rectangular parallelepipeds. In this case, each unit floating body is formed into a floating box with a weight and size that takes into consideration ease of handling such as transportation, and after integrating multiple floating boxes on land, the unit floating bodies are connected to each other with water fertilizer. Sometimes it is assembled.

[Problems to be Solved by the Invention] By the way, in the conventional example described above, as a means for connecting unit floating bodies to each other, a mounting protrusion is provided in a part of the upper end side of the floating box, and the protrusions are connected to each other. They are connected by a connecting member, etc. However, when a part of the floating box is provided with a mounting protrusion, it is difficult to sufficiently satisfy the strength of the protrusion in relation to the installation part, and problems also arise in terms of durability. In other words,
In a structure in which the connection is made using a mounting connection part that protrudes from the upper end of the floating box, even if the protrusion is made somewhat larger to provide strength, large external forces such as waves and currents can be applied locally. Since the receiver has to be stopped, it is easily damaged. In addition, due to the influence of waves, etc., the contact surfaces of the unit floating bodies separate from each other and collide with each other around the mounting protrusion as the center of rotation, which may cause problems in use. Moreover, in the publication, a plurality of floating boxes are connected by a common shaft to form a unit floating body, and on the other hand, the unit floating bodies are connected to each other using the above-mentioned attachment protrusion, and there is no connection between them. This lacks rationality as it does not take into account the relationship between the two.

Therefore, an object of the present invention is to make each floating box constituting a unit floating body lighter and thinner while ensuring a predetermined durability and size.
At the same time, it is an object of the present invention to provide a floating body structure in which unit floating bodies can be fixed and integrated with each other in a simple and rational manner.

[Means for Solving the Problems] In order to achieve the above object, the floating structure of the present invention has one or more thin-walled concrete floating boxes inserted horizontally inside the concrete. It is characterized in that it is constructed in advance as a unit floating body to which compressive force is applied through a plurality of rod-shaped members, and the unit floating bodies are fixed and integrated with each other using the rod-shaped members.

[Function] According to the above floating body structure, before each unit floating body is floated on the water surface, one or more of the floating boxes is configured to be compressed through a plurality of rod-shaped members, so that, Concrete 1: The tensile force lacking in the molded body is increased by an amount corresponding to the compressive force.

Since the unit floating bodies are fixed and integrated with each other using the rod-shaped members, external forces due to waves or currents are applied to the rod-shaped members, compared to those that use the mounting protrusions provided integrally on the floating box. Through this, the entire unit floating body can receive stable durability performance as a floating body structure.

Moreover, the rod-shaped member is used to both fix and integrate the floating boxes constituting the unit floating bodies and to fix and integrate the unit floating bodies with each other, making it economical.

[Example] FIGS. 1A and 1B are a plan view and a side view schematically showing a floating structure to which the present invention is applied.

The floating structure shown in the figure is constructed by floating a plurality of pre-configured unit floating bodies 1 on the water surface and sequentially fixing and integrating the unit floating bodies 1 to each other to construct a mooring shore 2. This mooring shore 2 is constructed using a chain. The mooring position is determined by 3 etc., and it is equipped with a bridge 4 roughly installed between it and the shore.

Figure 2 shows an example of the structure of a unit floating body 1.
The present invention will be explained in detail with reference to Figures 1r7I.

In addition, the same figure (a) is a vertical cross-sectional view of the unit floating body 1, and the same figure (b) is a longitudinal cross-sectional view of the unit floating body 1.
is a sectional view taken along the line A-A in Figure (A), and Figure (C) is a side view seen from direction B in Figure (A).

The unit floating body 1 consists of two thin-walled concrete floating boxes 5 each formed into a substantially rectangular parallelepiped with a hollow interior. Each floating box 5 has a somewhat thick inner edge, and integrally has a sheath tube 6 inserted horizontally in the thick wall. A total of four sheath tubes 6 are inserted into each of the thick-walled portions of the bottom and left and right sides of the floating box 5, penetrating both end surfaces 5a and 5b of the floating box 5.

A rod-shaped member 7 is inserted into each sheath pipe 6 so that the floating boxes 5 are aligned in a straight line and flush with each other. Each rod-like member 7 is a steel round rod twice as long as the floating box 5, and threaded ridges 7a are formed in a predetermined range at both ends thereof. Moreover, the outer end surface 5a of each floating box 5 of the rod-shaped member 7C′i,
The sheath tube 6 is
The threads 7a at both ends are inserted into the bearing plates 8,
It protrudes from the through hole 9. The bearing plates 8 and 9 have a predetermined width and are arranged horizontally above and below the end surfaces 5a and 5b, and the two side bar-shaped members 7 are inserted through the corresponding through holes provided in the bearing plate 8. Two of the members 7 are respectively inserted through the corresponding through holes provided in the bearing pressure plate 9. Then, by screwing and tightening the nuts 10 to each threaded thread 7a, the unit floating body I has the following properties: For example, the bearing plates 8 on both sides,
A predetermined compressive force is applied from the outside of 9 in the direction of the arrow in FIG.

Therefore, the two floating boxes 5 become an integral unit floating body 1 in a state where compressive force is applied by the four rod-shaped members 7ζ.

Each of the above-described unit floating bodies 1 is constructed on land near the installation site, where the floating box 5 is manufactured, and is floated by being moved onto the water surface by a crane or the like after treads and the like are installed.

Then, the unit floating bodies 1 are identified and moored to the mooring berth 2.
will be constructed.

Figures 3, 4 (a) and 4 (b) show the main parts when the unit floating bodies 1 are fixed and integrated one after another. Figure 4 (a) shows a state in which each level floating body 1 is moved sequentially from land to surface and floats on the sea surface, and figure 4 (b) shows a state in which adjacent unit floating bodies 1 are identified and integrated. ing. This darkening operation is performed by using the threads a protruding from the end faces 5a, 51) of the floating boxes 5 of the unit floating bodies l, which are opposed to each other, as shown in FIG. At this time, connection tool 1
2 etc. are used.

The connector 12 has a cylindrical shape made of steel, and has screw threads 12a and 12b formed in opposite directions on its inner surface. Then, the unit floating bodies 1 are moved to each other at a predetermined interval, and the threads 7a of the opposing rod-shaped members 7 are connected to the connecting tool 12.
A corresponding internal thread 12a of.

12b, and rotate the connecting tool 12.

Then, the connecting tool 12 is screwed into the thread 7a of each rod-shaped member 7, and the unit floating bodies 1 are fixedly integrated with each other while narrowing the distance between them.

The unit floating bodies 1 are fixedly integrated with each other by four connectors 12 to form a mooring berth 2, and by repeating this sequentially, a longer mooring berth is obtained.

FIG. 5 shows another example of the connector 12, shown in a state corresponding to FIG. 3.

This connector 13 is composed of a box 14.15 having a frame-shaped cross section corresponding to the bearing pressure plates 8 and 9, and a connecting plate 16 that integrates the inside of the box 14.15. box 1
4.15 has approximately the same length as the width of the floating box 5, and one side wall 14. A, 15a is provided with a through hole through which the screw thread 7a is inserted, and the other side wall has an opening 14b larger than this through hole.

15b is provided. A plurality of bolts 17 are fixed to the upper and lower walls 14c, 15c of the boxes 14, 15 so as to protrude from the inside to the outside.

and boxes 14.15 each opposing end face 5a.
, 5b, respectively, in the horizontal direction below -F, and the two upper rod-shaped members 7 and the two lower rod-shaped members 7 are inserted into the through holes through the through holes, respectively. Then, the nut 1 is inserted into the screw thread 7a inserted into the box 14.15.
0 is screwed together.

The nut 10 is tightened through the openings 14b and 15b using special fasteners, thereby compressing the unit floating body 1 with a predetermined pressure in the direction of the arrow in FIG. 2(a).

Further, in water E, the unit floating bodies 1 are fixedly integrated with each other by a connecting plate 16. The connecting plate 16 has a through hole provided corresponding to the bolt 17, and as shown in the figure, each box 14
Each unit floating body 1 is fixedly integrated by screwing nuts 18 into bolts 17 which are disposed at the upper and lower parts of the t 15 and protrude from the through holes.

In the fixed integrated structure as described above, unlike the conventional structure in which a mounting protrusion is provided on the floating box side, the rod-shaped member 7 that applies compressive force to each unit floating body 1 is used to achieve stable strength. and durability.

That is, in addition to the four rod-like members 7 being inserted through the thick wall portion provided at the inner edge of the floating box 5, the unit floating bodies 1 are connected to the rod-like members 7 with the connectors 12 and boxes 14, 15. Since they are connected and integrated using the connecting plate 16, etc., the mooring shore 2 is extremely stable and durable.

Further, the direction of transmission of external force is determined through the rod-shaped member 7, and especially when a tensile force is applied to each east floating body 1, the applied compressive force and the rod-shaped member 7 function effectively. Moreover, since the rod-shaped member 7 is configured to both integrate the floating boxes 5 and fix and integrate the unit floating bodies 1, there is no need to provide mounting protrusions or mounting holes on the floating boxes 5. Design and materials will be rationalized.

In the above, an example has been shown in which the unit floating body 1 is composed of two floating boxes 5 formed into a substantially rectangular parallelepiped.
As shown in FIGS. 6(a) and 6(b), the unit floating body 1 can be constituted by a single thin concrete floating box 20 formed into a substantially rectangular parallelepiped. That is, the floating box 20 shown in the figure has four sheath tubes inserted horizontally into a thick wall provided at the inner edge. A rod-like member 7 is inserted through each of the sheath tubes, and threads formed in a predetermined range at both ends of the rod-like member 7 are projected from a through hole of a bearing plate disposed on the outer end surface of the floating box 20.

-10- Then, a predetermined compressive force is applied to the floating box 20 by screwing nuts onto each of the threads on the surface and tightening them, as in FIG. 2. Therefore, even when the eye position floating body 1 is a single floating box 20, a compressive force is applied in advance, and the same effect as described above can be obtained. In addition, apply compressive force q' to single ◇ floating body l or floating box 20? As for the J-ru method,
A so-called boss tension method is adopted in which the rod-like member 7 inserted through the sheath pipe 6 is tensioned after the concrete has hardened, but in the case of the floating box 20, the rod-like member 7 is tensioned to a specified position. After applying a tensile force, a compressive force may be applied using a so-called pre-tension method in which concrete is poured. As described above, the present invention can be modified or developed in various ways within the scope of its gist.

[Effects of the Invention] As explained above, according to the present invention, the unit floating body is one or more floating boxes and is configured in a 4λ state with a compressive force of 4. The tensile force is increased accordingly, and each floating box can be made lighter and thinner while ensuring a predetermined durability and size, and it is possible to improve ease of handling such as transportation and reduce costs.

In addition, the floating structure of the present invention, in contrast to the conventional structure, uses the rod-shaped member to fix and integrate the unit floating bodies, so the floating structures can be fixed and integrated with each other economically and rationally. Furthermore, durability can be made more reliable and stable. Moreover, there are no defects in appearance.

[Brief explanation of drawings]

FIGS. 1(a) and 1(b) are schematic layout diagrams showing an example of a floating structure to which the present invention is applied, and FIG. 2(a). (b) and (c) are views showing unit floating bodies constituting the floating structure, FIG. 3 is a sectional view of essential parts showing a fixed and integrated structure of the unit floating bodies, and FIG. 4 (a). (b) is a schematic diagram showing an operation example of the fixed integration, FIG. 5 is a sectional view showing another fixed integration structure corresponding to FIG. 3,
FIGS. 6(a) and 6(rl) are schematic layout diagrams showing other examples of floating structures corresponding to FIG. 1. ]・・・・・・M floating structure 2・・・・・・Mooring shore (floating structure) 5.20・・・・
...Floating box 7...Bar-shaped member patent applicant Fudo Construction Co., Ltd. (and 3 others) Agent Patent attorney Hideki Yamamoto

Claims (1)

[Claims] (1) One or more floating boxes made of thin concrete are configured in advance as a unit floating body to which a compressive force is applied through a plurality of rod-shaped members that are inserted horizontally inside the concrete, and A floating structure characterized in that the unit floating bodies are fixedly integrated with each other using rod-shaped members.