JPH0718628A - Connection bridge for floating landing bridge and connection bridge load reducing device - Google Patents

Abstract

PURPOSE:To prevent a slide shoe from floating even if a floating body trembles. CONSTITUTION:In a connection bridge G for a floating landing bridge installed between the quay E side and the floating body F side, the connection bridge G is split-formed in plural triangular blocks A, B, C, the vertexes or the bases of which are disposed on the quay E side or the floating body F side, and the respective triangular blocks A, B, C are combined in such a manner that the vertexes and the bases are adjacent to each other. Rotating and tilting spherical bushes 3 6, 9 are provided on the vertexes (3), (6),(9) of the triangular blocks A, B, C, and rotatable bushes 1, 2, 4, 5, 7, 8 are provided on the bases (1), (2), (4), (5), (7), (8) of the triangular blocks A, B, C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating bridge connecting bridge used in a ship docking facility and the like, and a load reducing device used for the connecting bridge.

[0002]

2. Description of the Related Art A conventional floating bridge connecting bridge is as shown in the plan view and side view of FIGS. 14 (a) and 14 (b).
The integral connecting bridge 51 having a rectangular shape is configured to be supported by a total of four points including two hinges H provided on the quay E side and two slide shoes S provided on the floating body F side. There is.

In such a connecting bridge 51, when the floating body F rolls, one of the slide shoes S on the floating body F side is lifted up and the other one is lifted as shown in the front view of the floating bridge shown in FIG. Total of 3 points and 2 points on the quay E side
The sway of the floating body F is followed while supporting the load at points.

Therefore, as shown in FIGS. 14 (a) and 16 (a), which is a sectional view taken along line AA of FIG. 14 (a), the floating body F and the connecting bridge 51 are shown.
In some cases, a strip 52 separated in a strip shape is provided at the connecting portion of No. 1 to gradually change the slope angle of each slope so as to respond to a change in the transverse gradient of the connecting portion.

On the other hand, in the connecting bridge 51 mounted between the quay E and the floating body F in this way, it is necessary to move the slide shoe S on the floating body F side up and down in accordance with the swing of the floating body F as described above. is there. At this time, since it is necessary to slide the slide shoe S on the floating body F, a load reducing device that supports the floating body F side of the connecting bridge 51 so as to follow the undulating motion so as to reduce the shared load on the slide shoe S side. Is required.

This load reducing device 53 is shown in FIGS. 17 (a) and 17 (b).
As shown in the side view and the front view as seen from the floating body side, a sheave 57 for suspending the wire rope 55 is provided on the adjustment tower 54 provided so as to straddle the connecting bridge 51. Is configured to suspend the connection bridge 51 by suspending a wire rope 55 connected to the connection bridge 51 and providing a counterweight 56 at the other end. Therefore, when the floating body F sways and the connecting bridge 51 is undulated, the counterweight 56 moves up and down so that the slide shoe S side of the connecting bridge 51 is undulated so as to follow the sway of the floating body F. At this time, the slide shoe S is set by setting the weight of the counter weight 56 to a predetermined weight.
Has a function of reducing the shared load on the side of the slide shoe S so that it can easily move up and down following the swing of the floating body F.

The prior art relating to this type of connecting bridge is disclosed in JP-A-55-26350 or JP-A-60-.
There is Japanese Patent No. 22512.

[0008]

[Problems to be Solved by the Invention] However, the above connecting bridge 5
In the case of the configuration of 1, the three-point support in which one of the slide shoes S floats when the floating body F is rolling cannot be avoided, and thus noise is generated due to the repeated motions of the slide shoe S rising and the landing motion. Further, even if the transit slope 52 is provided on the floating body F side, it is not possible to prevent the slide shoe S from rising, and the floating body F is prevented.
Noise will be generated when a person passes by at the landing area.

Further, if one slide shoe S is lifted, it will be supported at three points, so that the hinge H on the quay E side will be supported.
Excessive load is generated on the. Therefore, it is necessary to set the strength of the hinge H portion so that it can withstand three-point support, and it is necessary to design the connecting bridge 51 having an excessively high strength.

On the other hand, in such a connecting bridge 51, the slide shoe S of the connecting bridge 51 follows the fluctuation of the floating body F side.
The load reducing device 53 is provided to raise and lower the side and reduce the shared load of the slide shoe S. The load reducing device 53 is provided for the counterweight 56 when designing the adjustment tower 54 and its substructure (substructure including the foundation). Since the weight is added, the design load (vertical load, wind load, seismic load, etc.) increases, and the structural members and the substructure of the control tower 54 become large.

A load reducing device 53 of this type is also provided.
Is unfavorable in terms of appearance because the counterweight 56, the wire rope 55, etc. are arranged in the air.

In view of the above problems, the present invention provides a floating bridge connecting bridge that does not cause the slide shoes to rise even when the floating body swings, and a connecting bridge load for undulating the connecting bridge so as to follow the swinging of the floating body. An object is to provide a mitigation device.

[0013]

In order to achieve the above-mentioned object, the floating bridge connecting bridge in the first invention is a floating bridge connecting bridge mounted between a quay side and a floating body side. Is divided into a plurality of triangular blocks having apexes or bases on the quay side and the floating side, and the triangular blocks are combined so that the apexes and bases are adjacent to each other. It is characterized in that a rotatable and tiltable bearing is provided, and rotatable bearings are provided at two points on the bottom side of each triangular block.

Further, in the load reducing device for a connecting bridge according to the second aspect of the present invention, an adjusting tower is provided on the side of the connecting bridge, and a buoyancy tank using the adjusting tower as a guide is provided below the connecting bridge. A supporting member for supporting the connecting bridge is provided to support the connecting bridge so as to follow ups and downs of the connecting bridge.

Further, in the load reducing device for a connecting bridge according to the third aspect of the present invention, a buoyancy tank is provided below the connecting bridge, and a supporting member for supporting the connecting bridge is provided in the buoyancy tank so that the buoyancy tank can be moved up and down. It is characterized in that a guide member for guiding is provided on the floating body side and supported so as to follow the undulating motion of the connecting bridge.

Further, in the load reducing device for a connecting bridge according to the fourth aspect of the present invention, a buoyancy tank is provided below the connecting bridge, and a supporting member for supporting the connecting bridge is provided on the buoyancy tank so that the buoyancy tank can swing. A holding member for holding is provided on the floating body side and is supported so as to follow ups and downs of the connecting bridge.

[0017]

According to the floating bridge connecting bridge of the first aspect of the invention, the connecting bridge is composed of a combination of triangular blocks supporting three points,
Since the rotatable and tiltable bearings are provided at the vertices and the rotatable bearings are provided at the bottom two points, each vertex of the combined triangular blocks is tilted even if the floating side sways, and the triangular blocks are inclined. Since the motion of the floating body is followed, the fulcrum at the apex or the bottom of the triangular block can follow the motion of the floating body without rising. Therefore, the slide shoe does not generate noise. Moreover, since the connecting bridge is always supported at four points, the hinge is not overloaded.

Further, according to the load reducing device for a connecting bridge of the second aspect of the invention, since the connecting bridge is supported from below by the supporting member of the buoyancy tank using the adjusting tower as a guide, the connecting bridge is directly vertical to the adjusting tower. Economical design of control tower is possible without load. Further, since the buoyancy tank moves up and down on the slide shoe side following the sway of the floating body, the share load of the slide shoe is reduced. In addition, the counterweight, wire rope, etc. are not placed in the air as in the past, so the appearance is also improved.

Furthermore, according to the load reducing device for a connecting bridge of the third aspect of the invention, the connecting bridge is supported from below by a buoyancy tank guided up and down by a guide member provided on the floating body side. The economic design is possible as in the case of the second aspect of the invention, and the sharing load of the floating slide shoe is reduced. In addition, since there is no tower to be installed in the water, the work will be easy and the load reduction device will be beautiful.

Further, in the load reducing device for a connecting bridge according to the fourth aspect of the present invention, the connecting bridge is supported from below by a buoyancy tank that is swingably held by a holding member provided on the floating body side. As with the third aspect of the invention, it is possible to reduce the economical design and the shared load of the slide shoe, and since there is no tower to be installed in the water, the work is easy and the load reducing device has a beautiful appearance.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are drawings showing an embodiment of a floating bridge connecting bridge according to the present invention. FIGS. 1 (a) and 1 (b) are plan views and side views, and FIGS. 2 (a) and 2 (b). Is a side view and front view showing the bearings provided at both ends of the connecting bridge on the quay side, and Figs. 3 (a) and 3 (b) are side views and front views showing the bearings provided at the center position of the connecting bridge on the quay side. 4 (a) and 4 (b) are a side view and a front view showing a bearing portion provided at both ends of the connecting bridge on the floating body side.

As shown in FIG. 1, in this embodiment, the connecting bridge G is divided and formed by a combination of three triangular blocks A, B and C each having a triangular shape in a plan view.
That is, the triangular block A has the bottom side on the quay E side and the apex on the floating body F side, and the triangular block B has the quay E side.
Side, and the bottom side on the floating body F side, and the triangular block C has the bottom side on the quay E side and the apex on the floating body F side, and the top and bottom sides of the triangular blocks A, B, and C, respectively. And are combined so that they are adjacent to each other. Then, the oblique side a of the triangular block A, the oblique side b _{1 of} the triangular block B, and the oblique side c of the triangular block C and the oblique side b ₂ of the triangular block B are combined so as to be along the rectangular connecting bridge G.
Is formed.

In this connecting bridge G, a hinge H is provided on the quay E side and a slide shoe S is provided on the floating body F side. The hinge H on the quay E side serves as the center of rotation, and the slide shoe S on the floating body F side of the floating body F. It is configured to slide on the floating body F following the shaking. A slope I is provided at the connecting portion from the connecting bridge G to the floating body F.

2A and 2B of the bases of the triangular blocks A and C, which are the support portions K on both sides of the quay of the connecting bridge G, are shown in FIG.
As shown in (b), the bracket 10 fixed to the quay E
The pin 11 is inserted into the pin 11, and bushes 1 and 5 as rotatable bearings are provided on the pin 11. Through the bushes 1 and 5, the bottoms of the triangular blocks A and C are connected to the quay E. It is supported. In addition, as shown in FIGS. 3 (a) and 3 (b), the vertices on the bottoms of the triangular blocks A and C, which are the central support portions L on the quay side of the connecting bridge G, and on the quay E, A pin 13 is inserted into a fixed bracket 12, and a spherical bush 3 which is a rotatable and tiltable bearing is provided on the pin 13 together with bushes 2 and 4 which are rotatable bearings.
The bottoms of the triangular blocks A and C are supported via 4 and the apex of the triangular block B is supported via the spherical bush 3.

On the other hand, the vertices of the triangular blocks A and C, which are the support portions M on the floating body side of the connecting bridge G, and the bottoms of the triangular blocks B are as shown in FIGS. 4 (a) and 4 (b). ,
A pin 15 is inserted into a bracket 14 provided on the slide shoe S, and the pin 15 is provided with spherical bushes 6 and 9 which are rotatable and tiltable bearings, and bushes 7 and 8 which are rotatable bearings. The triangular bushes A and C are supported by the spherical bushes 6 and 9 and the bushes 7 and 8 support the triangular block B.
And at the bottom of are supported.

The floating pier connecting bridge G supported on the quay E side and the floating body F side in this manner includes triangular blocks A,
The spherical bushes 3, 6 and 9 provided at the respective apexes of B and C are configured to be bendable at the respective oblique sides a, b ₁ and c, b ₂ .

Connecting bridge G for floating pier constructed as described above
According to the above, the motion of the floating body F is followed, and the operation is performed as shown in the front view of the floating body seen from the floating body side.

That is, when the floating body F is rolled as shown in FIG. 5, the oblique sides a and b ₁ and the oblique sides c and b ₂ between the triangular blocks A, B and C are bent, and the triangular block B is bent.
Is a spherical bush 3 provided at the apex on the quay E side and is inclined substantially parallel to the floating body F at the bottom, and triangular blocks A and C are spherical bushes 6, 9 provided at the apex on the floating body F side. Is tilted to maintain a substantially vertical state.

Therefore, it is possible to follow the rolling of the floating body F without the floating of the slide shoe S on the floating body, and at the same time, because the four-point support of the connecting bridge G is maintained, an excessive load acts on the hinge H on the quay E side. There is nothing to do.

Further, the ups and downs of the floating body F are followed by the bushes 1, 2, 4, 5, 7, and 8 provided at the bottoms of the floating body F rotating and undulating. .

By the way, in the above-mentioned embodiment, the floating bridge connecting bridge G is composed of three triangular blocks A, B and C. This structure is shown in FIGS. 6 (a), 6 (b) and 6 (c). As shown in the plan view of FIG. 4), the arrangement may be the reverse arrangement (a) of the above configuration, or the configuration (b) consisting of two triangular blocks A and B, or the inverse arrangement (c) thereof, and a plurality of triangles may be formed. With the configuration in which the block blocks are combined, similar effects can be obtained by providing bushes and spherical bushes at the bases and vertices of each of these arrangements and other arrangements, as in the above embodiment.

Further, the triangular block in the present invention includes a trapezoid of a substantially triangular shape as shown in FIGS. 7 (a) and 7 (b), and is a trapezoid capable of supporting each block at three points. I wish I had it. The combination of triangular blocks is shown in FIG.
You may combine in parallelogram shape as shown in (c).

8 to 13 are views showing a load reducing device J for a connecting bridge according to the present invention, and FIGS. 8 (a) and 8 (b) are side views showing a first embodiment of the load reducing device J. It is a figure and a front view.

As shown in the figure, the control tower 16 is provided on the side of the connecting bridge G mounted between the quay E and the floating body F.
Floating body F of this control tower 16
Below the connecting bridge G of the side support 16a, a buoyancy tank 17 using the support 16a as a guide is provided. And
The horizontal roller 18 provided above the buoyancy tank 17
The partial load on the floating body F side of the connecting bridge G is supported by. Since the buoyancy of the buoyancy tank 17 is such that the shared load acting on the slide shoes S on the floating body F is reduced, even if the floating body F rocks, the slide shoes S of the connecting bridge G separate from the floating body F. There is no such thing.

This buoyancy tank 17 is provided with roller support members 17b on both sides of a hollow tank body 17a as shown in the side view and front view of FIGS. 9 (a) and 9 (b). Further, an elevating guide roller 17c is provided so as to use the three surfaces of the support column 16a as guides. Further, horizontal rollers 18 are provided at the upper two places, and the horizontal rollers 18 support the connecting bridge G via roller rails 19 provided on the lower surface of the connecting bridge G. Further, an intake / exhaust valve 17d is provided on the upper part of the tank body 17a, and a water supply / drain valve 17e is provided on the lower part. The buoyancy of the buoyancy tank 17 can be adjusted by these valves 17d, 17e. There is.

According to the load-reducing device J for a connecting bridge constructed as described above, the connecting bridge G which undulates following the sway of the floating body F is supported as follows.

That is, normally, the connecting bridge G is supported from below by the buoyancy tank 17 whose buoyancy is adjusted to optimize the shared load acting on the slide shoe S on the floating body F.
It is stationary at a position where the load is balanced with the buoyancy of the floating body F. Then, when the floating body F rises or falls due to tide level fluctuation or the like, the buoyancy tank 17 also moves up and down following the tide level, so the floating body F and the buoyancy tank 17 continue to support the connecting bridge G in cooperation.

When the floating body F undulates from such a state due to swaying, the buoyancy tank 17 also moves up and down while supporting the connecting bridge G so as to follow the undulating motion, and the shared load always acting on the slide shoe S is reduced. It acts to let you.

At this time, the connecting bridge G swings around the hinge H on the quay E side as a fulcrum, and the buoyancy tank 17 moves up and down in the vertical direction by the elevating guide roller 17c using the pillar 16a as a guide. Since the horizontal roller 18 of FIG. 2 slides horizontally along the roller rail 19, these displacement differences are absorbed.

By the way, the support member in the first embodiment is the horizontal roller 1 provided above the buoyancy tank 17.
This support member is formed by connecting the upper part of the buoyancy tank 17 and the lower part of the connecting bridge G by a hinge 20 using a pin 21 as shown in FIG. 10 (a). Even with such a configuration, as shown in (b),
Link the upper part of buoyancy tank 17 and the lower part of connecting bridge G 22
Even if the structure is such that it is connected to and supported by a hinge 23 via a bridge, as shown in (c), a support member 25 having a pivot structure supported by rollers 24 is provided above the buoyancy tank 17 to connect the bridge. The structure that supports G may be used, and any structure that can absorb the displacement difference between the connecting bridge G and the support member may be used.

The control tower 16 in the first embodiment
Is provided so as to straddle the connecting bridge G, so that the upper part of the control tower 16 is exposed in the air. Therefore, in FIG.
As in the second embodiment shown in the side view and front view of 1 (a) and (b), if a guide pillar 26 is provided up to the vicinity of the upper surface of the connecting bridge G and the buoyancy tank 17 is guided, The member protruding upward is also eliminated, which is aesthetically pleasing.

By the way, in the above-mentioned first and second embodiments, the adjusting tower 16 or the guide column 26 is erected from the water, and the adjusting tower 16 or the guide column 26 serves to guide the lifting guide roller 17c of the buoyancy tank 17. These foundation works must be done underwater because they are guiding.

Therefore, as in the third embodiment shown in the side view and front view of FIGS. 12 (a) and 12 (b), a U-shaped guide for vertically moving the buoyancy tank 17 from the floating body F toward the quay E side. The guide member 27 having a circular shape is provided, and the vertical member 27 of the guide member 27 is provided.
If the guide roller 17c for raising and lowering the buoyancy tank 17 is guided to a, there is no need to perform work in water, so that the installation work of the load reducing device J can be performed extremely easily and the manufacture thereof is facilitated.

Further, as in the fourth embodiment shown in the side view and front view of FIGS. 13 (a) and 13 (b), a holding for swingably holding the buoyancy tank 17 from the floating body F toward the quay E side. If a member 28 is provided and the buoyancy tank 17 is held at the end of the holding member 28 and the upper portion of the buoyancy tank 17 and the connecting bridge G are connected using the above-mentioned hinge 20, the same as in the third embodiment. In addition, since the work in water is eliminated, the work of installing the load reducing device J can be performed extremely easily and the production thereof can be facilitated.

As described above, according to the floating bridge connecting bridge G and connecting bridge load reducing device J according to the present invention, a plurality of triangular blocks A, B and C are formed when the floating body F side is rolling.
The spherical bushes 3, 6, 9 for supporting the tilting of the connecting bridge G so that the floating body F side of the connecting bridge G is along the upper surface of the floating body F. When the floating body F side is undulated, the buoyancy tank 17 moves the floating body F side of the connecting bridge G from below. Because it undulates so as to follow, it will follow the fluctuations of the floating body F in a stable manner.
Can be formed.

If the floating bridge connecting bridge G of the present invention is combined with the load reducing device J of the present invention, the connecting bridge G of economical design can be realized.

The existing technology can be applied to the support structure of the connecting bridge G or the guide structure and the support member structure of the buoyancy tank 17 of the first to fourth embodiments of the load reducing device J described above. is there.

[0048]

EFFECTS OF THE INVENTION According to the floating bridge connecting bridge of the present invention, even if the floating body sways, the slide shoes of the connecting bridge do not separate from the floating body. No noise when passing.

Further, since the number of supporting points of the connecting bridge does not decrease during rocking, it is possible to prevent an excessive load from being applied to the hinge.

Further, according to the load reducing apparatus of the present invention, the load allotted to the floating body can be reduced and the acting load on the adjusting tower can be reduced without using a counter weight, so that the adjusting tower can be economically designed. At the same time, it becomes possible to improve the aesthetics.

Further, if the buoyancy tank constituting the load reducing device is constructed so as to be guided or held from the floating body side, it is not necessary to provide a component member of the load reducing device in water, and it is possible to greatly reduce the number of work steps. At the same time, the aesthetics can be improved.

[Brief description of drawings]

FIG. 1 is a drawing showing a floating bridge connecting bridge according to the present invention, in which (a) is a plan view and (b) is a side view.

FIG. 2 is a drawing of a bearing portion provided at both ends of the connecting bridge on the quay side shown in FIG. 1, where (a) is a side view and (b) is a front view.

3 is a drawing of a bearing portion provided at a central position of the connecting bridge on the quay side shown in FIG. 1, where (a) is a side view and (b) is a front view.

FIG. 4 is a drawing of a bearing portion provided at both ends of the floating bridge on the floating side shown in FIG. 1, in which (a) is a side view and (b) is a front view.

FIG. 5 is an explanatory view of the floating pier connecting bridge of the present invention during rolling, and is a front view seen from the floating body side.

6 (a), (b) and (c) are plan views showing another example of the configuration of the triangular block in the floating bridge connecting bridge of the present invention.

7 (a), (b) and (c) are plan views showing a configuration example of a substantially triangular trapezoidal block and a parallelogram configuration example in the floating pier connecting bridge of the present invention.

FIG. 8 is a drawing showing a first embodiment of the load reducing device for a connecting bridge according to the present invention, in which (a) is a side view and (b) is a front view.

9A and 9B are drawings showing the buoyancy tank of the first embodiment shown in FIG. 8, in which FIG. 9A is a side view and FIG. 9B is a front view.

FIG. 10 is a side view showing a configuration example of a support member, (a)
Is a hinge connection, (b) is a double hinge connection using links, and (c) is a pivot connection drawing.

FIG. 11 is a drawing showing a second embodiment of the load reducing device for a connecting bridge, (a) is a side view, and (b) is a front view.

FIG. 12 is a view showing a third embodiment of the load reducing device for a connecting bridge, (a) is a side view and (b) is a front view.

13A and 13B are drawings showing a fourth embodiment of the load reducing device for a connecting bridge, wherein FIG. 13A is a side view and FIG. 13B is a front view.

FIG. 14 is a drawing showing a conventional connecting bridge for floating piers,
(a) is a plan view and (b) is a side view.

FIG. 15 is an explanatory view of a conventional floating pier connecting bridge during rolling, and is a front view seen from the floating body side.

16 is a drawing for explaining a change in slope of the slope shown in FIG. 14, and is a cross-sectional view taken along line AA.

FIG. 17 is a view showing a conventional load reducing device, (a)
Is a side view and (b) is a front view seen from the floating body side.

[Explanation of symbols] 1, 2, 4, 5 ... Bushing 3 ... Spherical bushing 6, 9 ... Spherical bushing 7, 8 ... Bushing 10, 12, 14 ... Bracket 11, 13, 15 ... Pin 16 ... Adjusting tower 17 ... Buoyancy Tank 17c ... Elevating guide roller 17d ... Intake / exhaust valve 17e ... Water supply / drain valve 18 ... Horizontal roller 19 ... Roller rail 27 ... Guide member 28 ... Holding member A, B, C ... Triangular block E ... Wharf F ... Floating body G ... Contact Bridge H ... Hinge I ... Slope J ... Load reduction device K ... Quayside end support section L ... Quayside center support section M ... Float side end support section S ... Slide shoe ... Bottom side ... Bottom side ... Base point ...

Claims (4)

[Claims] 1. A floating pier connecting bridge mounted between a quay side and a floating side, wherein the connecting bridge is divided into a plurality of triangular blocks having apexes or bottoms arranged on the quay side and the floating side. , The triangular blocks are combined so that the vertices and the bases thereof are adjacent to each other, and a rotatable and tiltable bearing is provided at the vertices of the triangular blocks.
Connecting bridge for floating piers, which is equipped with rotatable bearings at points. 2. A control tower is provided on the side of the connecting bridge, and
A buoyancy tank using the control tower as a guide is provided below the tie bridge, and a support member for supporting the tie bridge is provided on the buoyancy tank to support the undulating movement of the tie bridge. Load reduction device. 3. A buoyancy tank is provided below the connecting bridge, a supporting member for supporting the connecting bridge is provided in the buoyancy tank, and a guide member for guiding the buoyant tank up and down is provided on the floating body side. A load reducing device for a connecting bridge, characterized in that it is supported so as to follow the undulating motion of the bridge. 4. A buoyancy tank is provided below the connecting bridge, and a supporting member for supporting the connecting bridge is provided on the buoyancy tank.
A load reducing device for a connecting bridge, wherein a holding member for swingably holding the buoyancy tank is provided on the floating body side and is supported so as to follow ups and downs of the connecting bridge.