JPS605063Y2 - floating structure - Google Patents

Description

[Detailed description of the invention] This invention relates to a floating structure such as a floating bridge that is used while floating in water.

Next, this invention will be explained in detail using illustrated examples.

1 and 2 show an example of an intermediate floating unit 3 constituting the floating structure of this invention, which is a cubic intermediate foam made of closed-cell hard foam synthetic resin such as styrene foam or urethane foam. The body block 2A is used as an inner filling form, and concrete is poured between the left and right sides and the upper surface of the intermediate foam block 2A and the outer formwork arranged to face them, An intermediate concrete block IA is composed of side plates 4 on both left and right sides and a top plate 5, and each side plate 4 is provided with a plurality of through holes 6 extending in the front-rear direction at intervals in the vertical direction, and further Ground cover portions 7 are formed on both left and right sides of the upper surface of the upper surface plate 5, and an intermediate floating block 3 is constituted by the intermediate concrete block IA and the intermediate foam block 2A.

FIGS. 3 and 4 show an example of an end floating unit 8 constituting the floating structure of this invention, which is a cube-shaped end floating unit made of closed-cell hard foam synthetic resin as described above. The body block 2B is used as an inner filling form, and concrete is placed between both left and right sides of the end foam block 2B, one end face in the front and back directions, and the upper face and the outer formwork arranged so as to face them. An end concrete block IB is formed by placing an end plate 10 and a top plate 11 at one end of the left and right side plates 9 in the front-rear direction, and each side plate 9 has a plurality of plates extending in the front-rear direction. through holes 6 are provided at intervals in the vertical direction,
On both left and right sides of the upper surface of the upper surface plate 11, a ground covering portion 7 and a connecting protrusion 13 having a through hole 12 extending in the front-rear direction are formed, and the end concrete block IB and the end foam block 2B are connected to each other. An end floating block 8 is configured.

5 to 7 show a floating structure using the intermediate floating unit 3 and the end floating unit 8, in which a plurality of intermediate floating units 3 are arranged in series in the above direction, and End levitation units 8 are disposed at both front and rear ends of the intermediate levitation unit row, and connecting members 14 such as PC steel or stranded steel wire are inserted through the through holes 6 of the side plates 4 and 9 arranged in the front and rear direction to connect them. Each intermediate floating unit 3 and each end floating unit 8 are arranged in series by a material 14.
The intermediate concrete block IA and the end concrete block IB, which are tightened and connected to each other, constitute a concrete box 1 whose bottom is open. A foam block 2 consisting of a foam block 2A and an end foam block 2B is fitted.

FIGS. 8 and 9 show an example of a floating bridge using the floating structure of the above embodiment, in which a large number of intermediate floating structures 15 and end floating structures 16 are arranged in series and adjacent to each other. A rubber plate 17 is interposed between the connecting protrusions 13 at opposite ends of the matching floating structures, and a steel rod, stranded steel wire, bolt, etc. is inserted through each connecting protrusion 13 and the rubber plate 17 for connection. Adjacent floating structures are interconnected by members 18.

Further, a railing 19 is attached to the ground covering section 7, and a concrete pier 20 is constructed between the end of the end floating structure 16 and the land.

When constructing the above-mentioned floating bridge, the intermediate floating unit 3 and the end floating unit 8 are produced in a factory, and these units are transported to land near the floating structure installation site, and each floating unit is connected with the connecting material 14 at that location. A floating structure is constructed, and the required number of floating structures constructed in this way are transported by a crane or the like and floated in the water, and then the ends of the floating structures floating in the water are Connecting member 1
8 may be connected via the rubber plate 17.

When implementing this idea, the intermediate flotation unit 3 and the end flotation unit 8 are produced in a factory, and these flotation units are transported to a flotation structure installation site and floated in water, where each flotation unit is connected by a connecting member 14. They may be connected to form a floating structure.

Additionally, rubber plates extending vertically may be attached to both the left and right sides of the end face of one of the opposing floating structures, or rubber plates may be attached to the lower parts of the left and right sides of the end face. It may be fixed by etc.

The floating bridge constructed as described above has good seismic resistance because it floats underwater and has a flexible structure, and because it is a prefabricated structure, it can be constructed easily and quickly. It is economical because it does not require a large main frame, and has good safety.

According to this invention, a foam block 2 made of closed-cell rigid foamed synthetic resin is fitted into a concrete box 1 having an open bottom to constitute a floating unit.
A plurality of steel connecting members 14 arranged at intervals in the vertical direction are inserted across the boxes 1 of a plurality of floating units that are joined in the horizontal direction, and the steel connecting members 14 connect each box. 1 are fastened together, it is possible to easily and economically assemble and manufacture a strong floating structure with a flexible structure that does not require a main bridge such as a main girder, and the floating structure of this invention has a simple structure and good stability, and furthermore, even if a crack occurs in the box 1, water will not infiltrate into the box 1, so that the floating structure will not tilt or sink due to water intrusion. can be prevented.

Furthermore, since the concrete box 1 does not have a bottom plate, it uses less concrete and is lightweight. Furthermore, the foam block 2 can be used as the inner formwork when manufacturing the concrete box, so that it can be used for floating structures. It can be manufactured easily and economically, and since the peripheral side of the foam block 2 is covered with the concrete box 1, it has the effect of preventing damage to the foam block 2 due to collisions with floating objects. is obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an intermediate floating unit constituting the floating structure of this invention, Fig. 2 is a longitudinal sectional side view thereof, and Fig. 3 is a perspective view of an end floating unit forming the floating structure of this invention. Fig. 4 is a longitudinal side view of the floating structure, Fig. 5 is a partially longitudinal side view showing an example of the floating structure of this invention, Fig. 6 is a partially transverse plan view thereof, and Fig. 7 is an enlarged longitudinal section of the floating structure. Front view, No. 8
The figure is a side view showing a part of a floating bridge using the floating structure of this invention, and FIG. 9 is an enlarged side view showing the part. In the figure, 1 is a concrete box, IA is an intermediate concrete block, IB is an end concrete block,
2 is a foam block, 2A is an intermediate foam block, 2B
is the end foam block, 3 is the intermediate floating unit, 4 is the side plate, 5 is the top plate, 6 is the through hole, 7 is the ground cover, 8 is the end floating unit, 9 is the side plate, 10 is the end plate , 11 is the top version, 1
2 is a through hole, 13 is a connecting protrusion, 14 is a connecting member, 15 is an intermediate floating structure, 16 is an end floating structure, 17 is a rubber plate, and 18 is a connecting member.

Claims (1)

[Scope of utility model registration request] A foam block 2 made of closed-cell rigid foamed synthetic resin is fitted into a concrete box 1 with an open bottom to form a mi-floating unit, and a plurality of flotation units are arranged and joined in the horizontal direction. A plurality of steel connecting members 14 arranged at intervals in the vertical direction are inserted across the box 1, and each box 1 is fastened and connected by the steel connecting members 14. floating structure.