JP2645308B2 - Concrete floating body, its manufacturing method and floating bridge - Google Patents

Description

The present invention relates to a floating body used for a ship departure / arrival facility, a yacht harbor or a fishing pond, and an improvement of a floating bridge using the same.

(B) Conventional technology Conventionally, a floating bridge has a structure in which a deck portion made of a steel or aluminum alloy frame with wood or striped plate material is supported on the water surface by several floating bodies. Alternatively, the suspension bridge was made of steel or FRP with an integral structure.

(C) Problems to be Solved by the Invention In the case of a structure in which the deck portion is supported on the water surface by several buoyant bodies, it is necessary to manufacture the deck portion, and the size becomes considerably large. In addition, the transportation cost is high, and the buoyancy bridge is supported on the water surface with several buoyancy bodies. Power is also small. In the case of a large one-piece suspension bridge made of steel, FPR or concrete, there is a disadvantage that a large space and large facilities are required for production, the transportation to the site is large, and the cost is high. there were.

In addition, the conventional floating body supporting the deck portion is often made of a synthetic resin of a cylindrical or rectangular parallelepiped, requiring considerable material costs and manufacturing time, and the floating body top cannot be used directly as a deck. .

(D) Means for Solving the Problem The present invention does not make the floating body a large one-piece, but a small, substantially rectangular parallelepiped floating body that can constitute a floating bridge by arranging several floating bodies in a row. The material is economical, strong, and corrosion-resistant fiber reinforced cement. Therefore, this is a floating body in which the deck is made thinner and the number of beams is appropriately arranged in the vertical and horizontal directions.

The floating body is filled with a foamed resin, and even if the outer concrete is cracked or slightly damaged, the buoyancy is not affected.

The foamed resin to be filled therein, for example, a synthetic resin such as styrene foam, is prepared in advance in accordance with the inner surface shape of the floating body. For example, the deck beam has a groove that matches the shape of the beam at the position of the beam above the foamed resin body.

The foamed resin formed into the inside shape of the floating body is set to a medium size, and the outside thereof is surrounded by an outer frame forming the outer shape of the floating body, and the fiber reinforced cement is injected and solidified between them to produce a buoyant body.

The floating bodies are arranged in a line, and one on each side of each floating body.
This is a floating bridge in which book members are arranged, and the member and each floating body are connected and fixed to form one body. For the connection between the floating body and the strip, a penetration bolt may be buried in the beam of the deck, and threaded portions at both ends may be protruded from the side of the floating body, and the strip may be penetrated therethrough and tightened with a nut. Alternatively, a pipe for inserting a through bolt may be buried in the deck beam and fastened with a through bolt.

Since the upper surface of the floating body is the deck of the floating bridge, the spacing between the individual floating bodies is close, the upper part between the floating bodies near the connecting strip is filled with rubber etc. to fill the gap between the upper surfaces of the floating bodies, and the space below it is The outside of the floating body is tapered slightly downward as it gradually opens.

(E) Function By configuring the floating body and the floating bridge using the floating body as described above, the buoyancy and the stability are as large as the one-piece floating bridge. Also, the floating body is hardly subjected to bending stress even when there is a wave as in the case of a one-piece type, and even if the strip is bent, the side surface of the floating body is tapered, so there is no possibility of damage due to contact collision or the like, If the deck is provided with beams on the floating body, the thickness of the upper surface of the floating body equivalent to the deck plate can be reduced, and when the penetration bolt or the pipe for inserting the penetration bolt is buried in the beam, it has the effect of increasing the strength of the beam. In addition, since the floating body is small, manufacturing is easy, transportation is easy, and on-site assembly is easy.

In addition, since the strips are arranged on both sides, it is convenient to install the fenders, cleats, mooring rings, connecting pieces, etc. of the floating bridge, and the number of floating bodies and the length of the long and short floating bridges are also convenient. It can be easily formed by selecting the shape, and can be arranged annularly, arranged in a skewered shape, or freely connected to the floating bridge depending on the position of the connecting piece provided on the strip.

(F) Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

Fig. 1a is a partially cut-away plan view of one embodiment of the floating body ( 1 ) of the present invention, Fig. 1b is a cross-sectional view at the center thereof, and Fig. 1c is a sectional view taken along line AA of Fig. 1a. It is. In the figure, (1) is a deck, and the upper surface is provided with a broom to prevent slippage.
(2) is a beam protruding below the deck, and a plurality of beams are provided in the vertical and horizontal directions, respectively. (3) is a pipe for inserting a through bolt (4) embedded in a longitudinal beam.
Fig. 2a is an enlarged sectional view showing a state in which a strip (5) is attached to a floating body with a nut (4 ') of a through bolt (4), and Fig. 2b is a view in which the through bolt (4) is directly inserted into a beam. Shows the case of burial.

In this embodiment, the through bolts or pipes are buried only in the longitudinal beam, but it is needless to say that they may be buried in the perpendicular beam or both beams if necessary.

 (6) is a foamed resin filled in the floating body.

FIGS. 3a, 3b and 3c are a plan view, a front view and a side view, respectively, of a foamed resin body (6) which has been prepared in advance so as to fill the floating body so as to conform to the surface shape of the floating body. In this example, beams (2) are provided vertically and horizontally on the lower surface of the deck, and grooves (2 ') and (2') are formed in accordance with the shape. Using this foamed resin as the medium size, assemble the outer frame on the outside according to the outer shape of the floating body, and when burying the pipe in the beam, attach the pipe between the outer frames according to the position of the beam, In the meantime, fiber-reinforced cement is injected and solidified to complete the floating body.

FIG. 4a is a plan view of a floating bridge, in which a plurality of floating bodies ( 1 ) are arranged in series, strip members (5) are arranged on both sides thereof and bolts (4) are integrally fastened, and FIG. Is a front view thereof. A fender (7), a cleat (8), and a mooring ring (9) are attached to the strip (5). (See FIGS. 5a-d)
(10) is a cushioning rubber material attached between the floating bodies,
There are no gaps in the deck.

(G) Advantages of the invention The above-mentioned construction makes the structure of a durable, economical floating body, free from breakage even in waves, excellent in buoyancy and stability, easy to produce, convenient to transport, and easy to assemble. To provide an easy floating bridge.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1a to 1c are a plan view, a front view cut at the center, and an AA cutaway view of FIG. 1a of the concrete floating body of the present invention. 2a and 2b show various states in which a strip is attached to a floating body using through bolts (with and without a pipe). 3a to 3c are a plan view, a front view and a side view of a foamed resin body to be filled in a floating body. FIG. 4a is a plan view of a floating bridge of the present invention in which floating bodies are arranged in series, and FIG. 4b is a front view thereof. 5a to 5d are a sectional view showing details of the fender, a cleat attached to the fender, a mooring ring and a side view thereof. 1 ... floating body, 1 ... deck, 2 ... beam, 2 '... groove, 3
... pipe, 4 ... penetrating bolt, 5 ... strip, 6 ... foamed resin, 7 ... fender.

Continued on the front page (51) Int.Cl. ⁶ Identification number Reference number in the agency FI Technical display location E01D 15/14 E01D 15/14

Claims (3)

(57) [Claims] 1. A floating body in which the outside of the floating body is formed in a substantially rectangular parallelepiped shape slightly tapered downward, the outer skin is made of fiber-reinforced cement, and a plurality of beams are formed vertically and horizontally on the back of the floating body deck. A concrete floating body characterized by being filled with a foamed resin. 2. A foamed resin is formed in an inner shape of a floating body having a substantially rectangular parallelepiped shape having a tapered outer side and a concave groove formed in an upper surface with vertical and horizontal beams, and the foamed resin is formed into a medium size to form a floating body outer shape. A method for producing a concrete floating body, characterized in that fiber-reinforced cement is injected and solidified between the outer frame and the outer frame. 3. A floating body according to claim 1, wherein a plurality of through-bolts or pipes for through-bolt insertion are buried in the beam in the horizontal direction, and a plurality of floating bodies are arranged in one row, and the upper surface of the floating bodies is a deck of a floating bridge, and each floating body has a deck. A floating bridge comprising a single strip member disposed on each side surface, and the strip member and each floating body connected and fixed by a through bolt to form a single body.