JPH04108497U - Pontoon connection structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a connection structure that easily connects and integrates multiple units floating on the water surface and allows the integrated pontoon to respond flexibly to the movement of waves with excellent durability. . [Composition] Multiple units 1 floating in series on the water surface
1a and 11b are attached to both ends of the fixing plate 12 in the continuous direction using corrosion-resistant tension members 14 disposed outside in the continuous direction.
They are integrally fastened via a and 12b.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to the connection structure of pontoons that are floated on the water surface and used as piers, etc. Ru.

0002

[Conventional technology]

For example, a boat that connects to the shore and floats on the surface of the water to communicate with a moored small boat. Pontoons are generally made of light materials such as styrofoam. A floating body made of concrete with a concrete layer formed around it is used as a unit body. It consists of a plurality of them lined up and connected. In addition, the connection of such units is It is carried out in a suspended state.

0003 3 and 4 are front cross-sectional views schematically showing such conventional pontoon connection structure. FIG. 2 is a diagram and a plan view. In the same figure, 1a and 1b are units adjacent to each other. Box-shaped hardware 2a, 2b is buried. 3 is the rubber or rubber interposed between these units 1a and 1b. A cushioning material made of wood or the like, 4, is inserted into each unit 1a, 1b and a loose material from inside the box-shaped hardware 2b. This is a connecting bolt that passes through the reinforcement material 3, and the tip of this connecting bolt 4 is inside the box-shaped metal fitting 2a. The nut 5 is screwed into this. And for connecting such a nut 5 By tightening the bolt 4, each unit body 1a, 1b is firmly attached via the cushioning material 3. Other units (not shown) are connected to each of these units 1a and 1b. ), it floats on the surface of the water.

0004

[Problem that the idea aims to solve]

However, in such a conventional pontoon connection structure, the units 1a and 1b are It is constructed by placing a concrete layer around a floating body such as Styrofoam, so it The thickness of the concrete layer near the box-shaped hardware 2a and 2b is small, and the area of the box-shaped hardware is If you strengthen the connector or tighten the nut 5 above, the condenser will be damaged in the vicinity. There is a problem that cracks occur in the cleat and the floating body, and eventually they break and separate. Ta. Therefore, in such a structure, large loads are not applied to the joints (connections). This had the disadvantage that it could only be used in calm areas with calm waves. .

[0005] On the other hand, in contrast, a sheath pipe is buried in each unit body 1a, 1b. After passing the PC steel rod through these sheath tubes, insert the end of the rod into each unit body 1a, 1b. A connection structure has been proposed in which both unit bodies 1a and 1b are connected by being fixed at the ends. There is.

[0006] However, in such a pontoon connection structure, a PC steel rod is attached to the sheath pipe. It is time-consuming to thread the rod through and inject grout, and the weight of the PC steel rod is also high. Due to its large size, it is difficult to handle it at sea, and the PC steel rod is susceptible to corrosion due to seawater, etc. There were problems such as poor durability due to oxidation.

[0007] The present invention was developed by focusing on the conventional problems mentioned above, and it is easy to install. Easy and durable pontoon connection that can flexibly respond to wave movements The purpose is to provide structure.

[0008]

[Means to solve the problem]

This invention was made in view of the above purpose, and its gist is that A plurality of units floating in the same direction, and a direction that intersects the plurality of units in the continuous direction A fixing plate sandwiched from the end and disposed outside in the direction in which each of the above units are connected, Connection of pontoons consisting of corrosion-resistant tendons with ends fastened and each unit pressed together It's in the structure.

[0009]

[Effect]

In the pontoon connection structure of this invention, the tendons are made of corrosion-resistant materials. It maintains the specified strength and elastic modulus for many years without corroding even when exposed to seawater. That's what I maintain. In addition, since the tension material is attached to the outside of the unit via the fixing plate, Therefore, no tensile stress is generated in the unit, and therefore there is no possibility of cracks etc. Prevent damage to the unit. Furthermore, it simplifies unit connection work and maintenance. It also flexibly responds to the movement of waves, making it possible to install it in areas other than calm areas.

0010

【Example】

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0011] In FIGS. 1 and 2, 11a and 11b each have a T-shaped projecting end on both sides of the upper part. The unit bodies 11a and 11b are floating bodies such as styrofoam, and It consists of a concrete layer of a predetermined thickness provided on the outer circumferential surface of the concrete. Furthermore, these After the unit bodies 11a and 11b are produced in a factory, they are transported to the installation site. Also, 12 a, 12b sandwich the consecutively installed units 11a, 11b from both ends intersecting in the connecting direction. These are insert members embedded in the unit bodies 11a and 11b in advance. (not shown), and bolt the unit 11a at the factory or installation site. , 11b is temporarily fixed to the end face. Note that both ends of each of these fixing plates 12a and 12b are , facing directly below the protrusions 13 at both ends of the upper parts of the unit bodies 11a, 11b, Insert both ends of each tension member 14 placed directly under the section 13 as shown in FIG. I fully support it. Reference numeral 15 denotes the tension plate inserted through the fixing plates 12a and 12b in this way. Both ends of the tension material 14 are fixed with tension applied to the tension material 14. It is a damping member and is made of a material that does not damage the tendon material 14. In addition, this club The pumping member 15 may be one that is screwed into the end of the tension material 14 or one that clamps the tension material 14 with pressure. Something to grasp is used. In addition, 16 is an interposed device between each unit body 11a and 11b. Cushioning materials 17a and 17b made of rubber or the like are used to connect each unit body 11a and 11b. These are guide tubes arranged directly under the protrusion 13 in the vicinity of the joint, and these are the 4 is inserted to support these, and each unit body 11a, 11b does not shift relative to each other. It looks like this.

0012 By the way, an out cable connecting the units 11a and 11b externally The tension material 14 is made of a new material such as carbon rod, glass fiber, or vinyl. Materials with excellent corrosion resistance against seawater, such as ron fiber or aramid fiber, are used. Used alone or in combination. The tension material 14 such as such a carbon rod is , generally has a low elastic modulus and smoothly follows the movement of the unit body due to waves, so its strength, It has excellent durability, is significantly lighter than PC steel rods, and is easy to construct. . Therefore, the connection work in the unit bodies, such as the connection of each unit body 11a and 11b, can be carried out efficiently. can be converted into

[0013] In addition, in the pontoon connection structure having such a configuration, first, the unit body 11 A cushioning material 16 The holes at the ends of each fixing device 12a, 12b are abutted through the holes, and then temporarily fixed to the other end surface. And one tension member 14 is passed through each of the guide tubes 17a and 17b. Furthermore, the tension material 14 While applying tension to press the unit bodies 11a and 11b, a clamp is attached to the end. The pump member 15 is attached and fixed to the fixing plates 12a and 12b, and the connecting structure is assembled. Complete the stand.

[0014] In the pontoon assembled with such a connection structure, the tension members 14 The tensile force applied via the fixing plates 12a, 12b is applied to the bonding surface of each unit body 11a, 11b. acts as a compressive force on the unit body 11a, 11b, and generates a partial tensile stress on the unit bodies 11a and 11b. This prevents damage to the unit such as cracks. In addition, the tension material 14 is Since it is installed as an external cable, additional construction or connection structure to the existing connection structure is possible. It is also possible to exchange. And since it does not use a sheathed pipe or PC steel rod like in the past, , it is advantageous in terms of structure and cost, and there is no problem of deterioration of durability due to corrosion of parts. stomach.

[0015]

[Effect of the idea]

As described above, the present invention uses multiple units and intersects them in the direction in which they are connected. The fixing plate is sandwiched from both ends, and the unit is placed outside in the direction in which the units are connected, and both ends are tightened to the fixing plate. Easy to assemble and maintain as it is constructed from tensioned materials that are tied together. be able to. In addition, the use of tendons made of corrosion-resistant materials makes it flexible against wave movements. It is flexible and does not generate local tensile stress on the unit, preventing damage to the unit. This also allows the installation of pontoons outside of areas where the waves are calm. Furthermore, it causes corrosion. A predetermined strength, elastic modulus, etc. can be maintained for a long time without any damage.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the pontoon connection structure of the present invention.

FIG. 2 is a side view of the pontoon connection structure shown in FIG. 1;

FIG. 3 is a side cross-sectional view showing a conventional pontoon connection structure.

FIG. 4 is a plan view of the connection structure shown in FIG. 3;

[Explanation of symbols]

11a Unit body 11b unit body 12a Fixing plate 12b Fixing plate 14 Tension material

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Takehiko Maruyama 218-3 Kitajuku, Isayama, Shimodate, Ibaraki Japan Concrete Industry Co., Ltd. Research Center (72) Creator Tadao Kawahara Nippon Con, 1-8-3 Shinbashi, Minato-ku, Tokyo Within Crete Industry Co., Ltd. (72) Creator: Takahiro Shiraiwa Nippon Con, 1-8-3 Shinbashi, Minato-ku, Tokyo Within Crete Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] Claim 1: A plurality of units floating in series on a water surface, a fixing plate that sandwiches the plurality of units from both ends intersecting the direction in which the units are arranged in series, and a direction in which the units are arranged in series. A pontoon connection structure consisting of a corrosion-resistant tension member disposed externally and having both ends fastened to each of the above-mentioned fixing plates and press-fitting each unit.