JPH08253910A - Pier unit and floating pier using it - Google Patents

Abstract

PURPOSE: To make possible a pier unit by molding-apparatus, to facilitate its conveyance, and to prevent a floating pier from much swing, by a method wherein a square frame is mounted on the flange of the upper end part of a float, a deck is placed on the frame, and connecting means for connecting the pier units neighboring with each other are fastened at the corner parts of the frame. CONSTITUTION: Connecting means each are fastened to the horizontal upper and lower surfaces at the corner parts of a frame 20 for a pier unit 1. The corner parts of the pier units 1 are gathered together so as to approach to each other. Fastening bolts 9 each are passed-through from on the side of through holes 4 on connecting members 40 at the upside toward through holes 41 on the connecting members 40 at the underside, and tap plates 45 are put at the lower end thereof. The fastening bolt 9 is screwed in a tapped hole 45a in the condition that a guide pin is passed through a guide hole 45b on the tap plate 45, and thus the tap plate 45 is prevented from turning together. On the other hand, distance between the connecting members 40, 40, upper and lower, are narrowed, their inclination pieces are brought into close contact with the taper surfaces of the connecting means, and the pier units 11 neighboring with each other are gathered and are strongly connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pier unit made of synthetic resin, which is relatively easy to manufacture, and a floating pier constructed by connecting a plurality of pier units.

[0002]

2. Description of the Related Art As shown in FIG. 24, a general floating jetty is constructed by connecting a required number of jetty units 50 each having a length of 10 m and a width of 2 m by pin connection. That is, the connecting portions 5 are provided at both ends in the longitudinal direction of the pier unit 50.
1 and 52 are provided, and the connecting portions 51 and 52 are connected to the pin 5
Multiple pier units 50,
50 were connected.

In the pier having such a structure, it is difficult to mechanically mold the pier unit 50 by using a molding device because the pier unit 50 is very large. Therefore, in the pier unit made of FRP, the hand lay-up method is used. It was made, and the jetty unit made of concrete was made by the casting method. In addition, transportation and transportation of the pier unit from the factory to the quay was extremely difficult and required heavy equipment.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned drawbacks, and its object is to be able to mechanically manufacture it by using a molding apparatus and to carry it. It is to provide an easy jetty unit and a floating jetty using it.

[0005]

A jetty unit of the present invention is formed in a substantially box shape having an open upper surface, and a flange having an upper end portion extending outwardly over the entire circumference, and a float of the float. A pier unit having a square frame-shaped frame mounted on a flange and a deck arranged on the frame, wherein connecting means for connecting adjacent pier units to each other is fixed to a corner of the frame. Has been done,
Thereby, the above object is achieved.

Further, in the floating jetty of the present invention, a plurality of the jetty units are arranged close to the corners of the jetty unit,
Adjacent jetty units are connected by a connecting member provided between adjacent ones of the connecting means provided at the upper portion of the corner portion of the frame in each jetty unit, thereby achieving the above object. To be done.

[0007]

By constructing the pier unit from the float, the frame and the deck, each member can be molded of glass fiber reinforced thermoplastic resin or the like. In addition, by connecting the adjacent pier units to each other by the connecting means fixed to the corner of the frame of the pier unit, a floating pier of a desired design can be constructed, and the floating pier can be It doesn't shake greatly on the water.

[0008]

EXAMPLES The present invention will be specifically described below based on examples.

The floating jetty A is constructed by connecting a plurality of rectangular jetty units 1 as shown in FIGS.

The shape of the floating pier A can be changed in various ways depending on how the pier units 1, 1, ... Are connected. As shown in FIG. 2, for example, two lateral parts are connected. By connecting a plurality of individual jetty units 1 and 1 in the vertical direction, a main road B of the floating jetty A is formed, and by connecting a lateral portion of the main jetty B to the side of another jetty unit 1. A branch road C of the floating pier A is formed. In the figure, 2 is a fender provided on the entire circumference of the side of the floating pier A.

The jetty unit 1 is, as shown in FIG.
A resin box-shaped float 10 having a width of about 1 m and a length of about 1 m formed in the shape of a rectangular box, a rectangular frame-shaped resin frame 20 fixed on the float 10, and a frame 20 on the frame 20. The deck 30 is provided and the surface plate 4 is provided on the deck 30.

As shown in FIGS. 5 to 8, the float 10 is constructed by extending a flange 11 outward from the upper end of a substantially box-shaped float body 12 having an open upper surface over the entire circumference. ing. Plural bolt holes 13 are formed in the flange 11. Reinforcing ribs 14 are provided on the inner surface of the float body 12 so as to extend over the bottom and sides thereof. The height of the rib 14 is, for example, 20 to 40 mm. A rib 14 provided on the bottom of the float body 12 defines a housing position 5a for forming the ballast housing 5 at a corner of the bottom of the float body 12. A foamed resin portion 6 is filled in the bottom portion of the float body 12 excluding the housing portion 5.

The foamed resin portion 6 is provided in the float body 12 as follows.

The L-shaped mold frame 7 shown in FIG. 6 is arranged at the housing position 5a at the bottom of the float 10 so that the housing part 5 is located between the L-shaped piece 71 of the mold frame 7 and the inner surface of the float 10. Form. The entire outer surface of the frame 7 is covered with a vinyl sheet 72, and the end of the sheet is fixed inside the frame 7 by an adhesive tape.
Is provided. With the molds 7 arranged at the four corners of the float 10, after the foaming resin is injected into the center of the float 10 to be foam-cured and the foaming of the foaming resin is completed,
When the mold 7 is pulled out from the foamed resin portion 6, the ballast housing portions 5 are formed at the four corners of the float 10. When the mold frame 7 is pulled out from the foamed resin part 6, only the vinyl sheet 72 covering the outer surface of the mold frame 7 adheres to the foamed resin part 6, so that the mold frame 7 is released from the foamed resin part 6. Can be extracted well. As the foamable resin, a two-component type hard urethane foam resin can be used. The expansion ratio is preferably about 30 times.

As described above, by providing the foamed resin portion 6 in the float 10, even if the float body 12 is damaged, the foamed resin portion 6 prevents water from entering the inside of the float 10. Even if water enters the float 10, buoyancy can be imparted to the float 10 by the buoyancy of the foamed resin portion 6. In addition, the ballast 8 is installed in the ballast housing 5 provided at the four corners of the float 10.
The center of gravity of the float 10 can be adjusted by inserting
The stability in water can be improved.

As shown in FIG. 9, the frame 20 disposed on the flange 11 of the float 10 is formed of a fiber reinforced thermoplastic resin (hereinafter referred to as FRTP) in a substantially rectangular frame shape. The frame 20 includes a horizontal piece 21, an outer vertical piece 22 that extends vertically from an outer end of the horizontal piece 21, and an inner vertical piece 23 that extends vertically from an inner end of the horizontal piece 21. And have. Bolt holes 24 are provided at the four corners and side portions of the horizontal piece 21.

As shown in FIG. 15, the deck 30 attached to the upper surface of the frame 20 is formed by protruding a large number of ribs 32 in a grid pattern on the upper surface of the deck body 31 by FRTP or the like. The deck 30 is formed in a substantially square shape,
Triangular notches 33 are provided at the four corners.
The bolt hole 34 is also provided in the deck body 31. The surface plate 4 mounted on the deck 30 is provided for makeup, and is formed so as to correspond to the shape of the deck 30, as shown in FIG.

Next, a method of assembling the pier unit 1 will be described.

As shown in FIGS. 10 to 12, a strip-shaped packing 16 made of butyl rubber or the like is adhered to a corner portion inside the flange 11 of the float 10 having the foamed resin portion 6 provided therein. The packing 16 is arranged inside the bolt hole 15 provided in the flange 11. Further, a cushion rubber 17 is arranged on the flange 11 at a position outside the packing 16. The cushion rubber 17 is provided with a bolt hole 18, and the bolt hole 13 of the flange 11 is provided.
Is arranged at a position corresponding to.

Next, the frame 20 is mounted on the flange 11, and the outer vertical piece 22 of the frame 20 is mounted on the flange 11.
And the inner vertical piece 23 of the frame 20 is placed inside the flange 11. This allows
The packing 16 and the cushion rubber 17 are the float 1
It is compressed between the flange 11 of 0 and the horizontal piece 21 of the frame 20.

Next, as shown in FIGS. 13 and 14, a seal rubber 25 made of strip-shaped butyl rubber or the like is adhered to the upper end of the inner vertical piece 23 of the flange 11 over the entire circumference, and on the horizontal piece 21. With the tap block 26 in place, as shown in FIG. 10, the flange 11 of the float 10
From the lower surface, the bolt 27 is screwed into the tap block 26 via the collar 19. The collar 19 is made of metal and can prevent loosening of tightening.

Next, as shown in FIG.
Place the deck 30 on the upper surface of the
It is screwed into the tap block 26 above the 0. Threaded grooves are formed in the upper and lower portions of the tap block 26, respectively. After that, as shown in FIG. 16, the connecting means 60 is fixed onto the horizontal piece 21 of the frame 20 through the notch 33 provided in the deck 30. Finally, the pier unit 1 is constructed by screwing the surface plate 4 onto the deck 30.

Next, the connecting structure of the connecting means and the plurality of jetty units 1 will be described.

The structure of the connecting means 60 fixed to the corner of the frame 20 is as follows. The connecting means 60 is made of a material having rigidity such as metal, and as shown in FIG. 19, a projection 61 having a substantially right triangle shape in plan view and a frame extending horizontally from the bottom of the projection 61. 20 has a mounting piece 62. The attachment piece 62 is provided on the triangular oblique side of the protrusion 61. On the hypotenuse side of the protrusion 61, a tapered surface 63 is formed which is inclined downward from the top surface of the protrusion 61 toward the attachment piece 62 side. Protrusion 6
The height of 1 is slightly smaller than the protruding height of the outer vertical piece 22.

A pair of connecting means 60, 60 are connected to the frame 20.
Each connecting means 60 is attached to the frame 20 by means of bolts and nuts which are respectively disposed on the upper and lower surfaces of the horizontal pieces 21 at the corners of the horizontal pieces and which are passed through the bolt holes 64 provided in the mounting piece 62 and the bolt holes 24 provided in the frame 20. Fixed.

The connecting member 40 for connecting the jetty units 1 has a connecting member 40A used for fixing four adjacent jetty units 1 and a connecting member 40 used for fixing two adjacent jetty units 1. There is a member 40B.

The connecting member 40A, as shown in FIG.
It has four inclined pieces 42, and a through hole 41 for the tightening bolt 9 (see FIG. 4) is formed in the center of the connecting member 40A. Note that the lower half of the connecting member 40A is omitted in FIG. The connecting member 40A is provided on the outer surface of the connecting means 60 fixed to the corner of the frame 20, and the guide pin 43 is provided on the outer surface of the connecting member 40A provided below the frame 20. It is projected.
Similarly, the connecting member 40B has two inclined pieces 42 and a vertical piece 44 as shown in FIG.
A through hole 41 for the tightening bolt 9 is formed in the vicinity of the vertical piece 44. Also in this connecting member 40B, the connecting means 60 fixed to the corner portion of the frame 20.
The guide pin 43 is provided on the outer surface of the connecting member 40B provided below the frame 20.

Next, a structure for connecting the pier unit 1 using the connecting member 40A having the above structure will be described.

As shown in FIG. 3, connecting means 60 are fixed to the upper and lower surfaces of the horizontal pieces 21 at the corners of the frame 20 of the pier unit 1 so that the corners of the pier units 1 are close to each other. That is, the side portions of the pier unit 1 are brought into contact with each other. Next, as shown in FIG. 4, the tightening bolt 9 is passed from the through hole 41 of the upper connecting member 40 to the through hole 41 of the lower connecting member 40, and the tap plate 45 is attached to the lower end portion of the tightening bolt 9. Insert. Tap plate 4
5, a tap hole 45a and a guide hole 45b are formed, and the guide pin 43 is passed through the guide hole 45b. The rotation is prevented. Since the space between the upper and lower connecting members 40, 40 becomes narrower as the tightening bolt 9 is screwed, the inclined pieces 42, 42, ... Provided on the upper and lower connecting members 40, respectively, are attached to the tapered surface 63 of the connecting means 60. The jetty units 1 and 1 that are press-contacted and adjacent to each other approach each other and are strongly connected.

After that, as described above, the decorative plate 34 is placed in the notch of the surface plate 4 and screwed to complete the assembly of the pier unit 1.

By using the connecting member 40A in this manner, a plurality of, for example, four pier units can be connected at the same time, and can be tightened by crimping the tapered surface of the connecting means and the inclined piece of the connecting member. Therefore, the man-hours are small. Further, by connecting the connecting member 40B to the fastening metal fitting y, as shown in FIG. 3, the connection at the end or the connection between the adjacent pier units arranged on the branch road C shown in FIG. 2 can be performed in the same manner as before. You can

The fender 2 is attached to the frame 20 of the floating jetty as follows.

As shown in FIGS. 17 and 18, a locking bolt 49 having a hook portion 48 at the top is passed through a through hole 47 formed in the fender 2 made of an elastic synthetic resin material or rubber. , The hook portion 48 is locked to the outer vertical piece 22 of the frame 20, and the threaded portion of the lower portion of the locking bolt 49 is passed through the through hole of the L-shaped piece 66 to lock the locking portion 67 of the L-shaped piece 66. The fender 2 is securely attached to the frame 20 by engaging with the inner surface of the outer vertical piece 22 of 20 and tightening the nut in this state.

As described above, according to the present invention, since each member constituting the jetty unit can be mechanically produced, the moldability is excellent, and the jetty unit is formed with a small size. Since it can be carried, it is easy to carry.

Further, since the flanges of the jetty unit are connected to each other so that they do not shake greatly due to the load, each jetty unit does not shake greatly due to the load of a pedestrian when walking on the jetty.

Further, each member of the jetty unit is FRTP.
Since the members constituting the jetty unit can be recycled by forming the above, the problem of waste disposal of large marine structures can be solved.

Further, by adopting a construction in which a plurality of jetty units are connected by the frame portion of the jetty unit, it is possible to reduce the displacement with respect to a large load and to construct a floating jetty without shaking. Details will be described below.

As shown in FIG. 22, one unit of 1.2 m × 1.05 m produced by FRTP stamping molding was connected at the two corners (a portion) of the frame 20 of the frame 20 of the floating pier in the above-mentioned configuration. . Using a model in which the frame 20 was connected at two points, three-point bending was performed (the portion b is the load).

As a result, as shown in FIG. 23, it was found that the displacement of the frame is large under a low load, but the displacement of the frame is small under a heavy load, and the frame is restored when the load is removed. Therefore, when the frame 20 made of FRTP is used, the floating jetty of the present invention easily deforms following the received wave even if it receives a strong impact from the wave. Therefore, it is difficult to damage and it is possible to suppress the occurrence of large shaking.

[0040]

As described above, according to the present invention, the pier unit is composed of the float, the frame and the deck. Therefore, each member is mechanically produced from glass fiber reinforced thermoplastic resin or the like for production. You can improve your sex. In addition, the pier unit can be formed in a small size, which makes transportation and transportation from the factory to the installation site extremely convenient.

Further, since the adjacent jetty units are connected to each other by the connecting means fixed to the frame of the jetty unit, the floating jetty does not greatly swing due to the load of the pedestrian even when walking on the jetty.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a jetty unit of the present invention.

FIG. 2 is a perspective view showing an embodiment of the floating jetty of the present invention.

3 is a partially cutaway perspective view of the floating pier shown in FIG. 2. FIG.

FIG. 4 is a perspective view of a jetty unit forming the floating jetty shown in FIG.

5A is a perspective view of a float of the jetty unit of the present invention, and FIG. 5B is a plan view thereof.

6 is a perspective view of a mold used to form a foamable resin portion on the float shown in FIG. 5. FIG.

FIG. 7 is a perspective view showing a state in which a foamable resin portion is formed on the float.

8A is a plan view of the float, FIG. 8B is a side view of the float, and FIG. 8C is a front view of the float.

9A is a plan view of the frame, FIG. 9B is a side view of the frame, and FIG. 9C is a front view of the frame.

FIG. 10 is an exploded perspective view showing a state in which the frame is assembled to the float.

11 is a perspective view of a main part of the float shown in FIG.

12 is a cross-sectional view of a main part of the float shown in FIG. 10 with a frame fixed thereto.

FIG. 13 is an exploded perspective view showing a state in which the deck is assembled to the frame to which the float is fixed.

14 is a perspective view of a main part of the frame shown in FIG.

15A is a plan view of the deck, FIG. 15B is a side view of the deck, and FIG. 15C is a front view of the deck.

FIG. 16 is a perspective view showing a state in which the deck is fixed to the frame to which the float is fixed.

FIG. 17 is an exploded perspective view of the fender attached to the frame.

FIG. 18 is a cross-sectional view showing a state in which a fender is attached to the frame.

FIG. 19 (a) is a plan view of an embodiment of the connecting means,
(B) is a side view of the connecting means.

FIG. 20 (a) is a plan view of an embodiment of a connecting member,
(B) is a partially cutaway front view of the connecting member.

FIG. 21 (a) is a plan view of another embodiment of the connecting member,
(B) is a front view of the connecting member.

FIG. 22 is a schematic view showing a state where the frames are connected at two points.

FIG. 23 is a diagram showing an analysis model result.

FIG. 24 shows a conventional floating jetty, (a) is a plan view of the floating jetty, and (b) is a front view of the floating jetty.

[Explanation of symbols]

 1 Pier Unit 2 Fender 4 Surface Plate 5 Ballast Housing 6 Foaming Resin 10 Float 11 Flange 20 Frame 22 Outer Vertical Piece 30 Deck 40 Connecting Member 60 Connecting Means A Floating Pier

Claims (7)

[Claims] 1. A float, which is formed in a substantially box-like shape with an open upper surface, and has a flange extending outwardly over the entire circumference at the upper end, and a square frame-shaped frame mounted on the flange of the float. A pier unit having a deck disposed on the frame, wherein a connecting means for connecting adjacent pier units to each other is fixed to a corner portion of the frame. 2. The jetty unit according to claim 1, wherein ballast accommodation portions are formed at four corners of the float, and a foamed resin portion is disposed inside the float except the accommodation portion. 3. The pier according to claim 1, wherein the frame is watertightly mounted on the flange of the float via a packing, and the deck is watertightly mounted on the frame via another packing. unit. 4. The jetty unit according to claim 1, wherein a face plate for makeup is placed on the deck. 5. The jetty unit according to claim 1, wherein a mounting piece having a vertical outer surface is provided at an outer end portion of the frame, and a fender is mounted on the outer surface of the mounting piece. 6. The jetty unit according to claim 1, wherein the frame is formed of a fiber reinforced thermoplastic resin. 7. A pier unit according to claim 1, wherein a plurality of pier units are arranged close to each other at the corners of the pier unit, and between the adjacent units of connecting means provided above the corners of the frame in each pier unit. A floating jetty in which adjacent jetty units are connected by a connecting member that is arranged over the area.