JP2001055708A - Shoe apparatus for linearly and swingingly guiding/ supporting construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a construction to cope with large positional fluctuation, by fixing upper and lower shoes each having a predetermined structure to the construction, and providing a bearing which linearly and swingingly support the upper shoe, in the lower shoe. SOLUTION: A shoe apparatus 1 comprises a lower shoe 6 having an almost U-shaped cross section, in which sliding plates 17, 18 are arranged on respective facing inner surfaces 2, 3 in a bridge axial direction, while its lower surface being fixed to a pier 5, an upper shoe 9 having its upper surface fixed to a pier 8 and a columnar portion 32 vertically erected, and a bearing apparatus 10 for linearly and swingingly support the shoe 9 with respect to the shoe 6. The bearing 10 includes a bearing main body having a concave spherical inner surface 41, and opposed outer side surfaces 42, 43, and being interposed between the shoes 6, 9, a spherical bearing 46 having a convex spherical outer surface 45 sliding on the inner surface 41 and being fixed to the shoe 9 via the column 32, and plate-like bearings 49, 50 being fixed to the outer side surfaces 42, 43 and slidably abutting on the inner side surfaces 2, 3. The apparatus 1 guides movement of the girder 8 in the bridge axial direction, by means of the bearings 49, 50, and supports swing of the girder 8 by sliding of the bearing 46. Thus, an end of a construction which undergoes large positional fluctuation can be linearly and swingingly supported.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe device for guiding and supporting a structure, particularly a structure having one end connected to a floating structure, so as to be able to linearly and swingably move the other end.

[0002]

SUMMARY OF THE INVENTION A floating bridge having a relatively low height above the sea surface between an artificial island including an island or a floating island not far from the land (hereinafter referred to as an artificial island) and the land. (Road bridge) is floated, and the artificial island is connected to the land by a motorway or the like via this floating bridge. When the ship passes, the floating bridge is moved by a tug boat or the like to allow the passage of the ship. Bridge structures have been proposed.

In this case, a sloping road bridge which is gradually inclined between artificial islands and the like and the land and the floating bridge is installed between the floating bridge and the floating bridge due to the ebb and flow of the tide. It is necessary to be movable with a large displacement so as to be able to follow the vertical movement of the floating bridge and to allow the movement of the floating bridge by a tug boat or the like.

[0004] The bridge girder of a conventional elevated road or road bridge is caused by its own expansion and contraction due to temperature change, load fluctuation and the like.
In order to absorb bending and vibrations such as earthquakes, they are simply placed and installed on piers via sliding bearings or rolling bearings, etc.In such sliding bearings or rolling bearings, artificial islands as described above are used. It is difficult to movably guide and support a bridge girder that fluctuates greatly in position for connecting the land and the floating bridge to each other, and a satisfactory supporting device for this has not yet been proposed.

The present invention has been made in view of the above points, and has as its object to provide a structure, particularly a structure whose one end is connected to a floating structure and whose position greatly varies. An object of the present invention is to provide a shoe device that guides and supports the other end portion so as to be capable of linearly and swingably, and a structure using such a shoe device.

[0006]

According to a first aspect of the present invention, there is provided a shoe device for guiding and supporting a structure so as to be able to move linearly and swingably, the inner surface extending flat in the direction of linear movement of the structure and facing each other. A lower shoe fixed to the base on the lower surface, an upper shoe fixed to the structure on the upper surface, and a bearing device for allowing the upper shoe to move linearly and swing relative to the lower shoe. The bearing device has a concave spherical inner surface and has outer surfaces facing each other, and a bearing body interposed between a lower shoe and an upper shoe, and a concave spherical surface of the bearing body. A spherical bearing fixed to the upper shoe with a convex spherical outer surface slidably contacting the inner surface, and a flat outer surface slidably contacting each inner surface of the lower shoe. And a flat bearing fixed to each outer surface of the bearing body.

In the first embodiment, since the bearing device includes the spherical bearing and the flat bearing, large swinging and linear movement of the structure can be tolerated. Since the linear motion is restricted and performed between the flat inner surfaces facing each other of the lower shoe, the structure can always be guided and maintained at a predetermined position.

According to a second aspect of the present invention, in the first aspect of the present invention, the lower shoe is fixed to the lower shoe body having a U-shaped cross section and the inner surface of the lower shoe body facing the lower shoe body. And the outer surface of the flat bearing slidably contacts the exposed surface of each sliding plate as the inner surface of each lower shoe.

A preferred example of the sliding plate is a stainless steel plate, but other low friction metal plates relatively resistant to corrosion (salt damage) may be used.

According to a third aspect of the present invention, in the shoe apparatus of the first or second aspect, the upper shoe has a rectangular plate-shaped or disk-shaped pedestal portion to which a structure is fixed on an upper surface. A cylindrical portion hanging down from the cradle portion and integrally formed with the cradle portion, and the spherical bearing has a through-fitting hole in the center, and has a cylindrical portion of the upper shoe. Are fitted in the through fitting holes of the spherical bearing, and the upper shoe is fixed to the spherical bearing.

An anchor bolt is usually implanted in the receiving portion of the upper shoe, and a structure is fixed to the receiving portion via the anchor bolt.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the spherical bearing comprises an annular body having a through fitting hole at the center thereof. Is formed as a convex spherical outer surface.

According to a fifth aspect of the present invention, there is provided the shoe apparatus according to any one of the first to fourth aspects, wherein a plurality of solid lubricants are embedded on the convex spherical outer surface of the spherical bearing. A recess is formed, and the exposed surface of the solid lubricant slidably contacts the concave spherical inner surface of the bearing body.

According to a sixth aspect of the present invention, in the shoe apparatus according to any one of the first to fifth aspects, a plurality of recesses in which a solid lubricant is embedded are provided on the outer surface of the flat bearing. The exposed surface of the solid lubricant is slidably in contact with each inner surface of the lower shoe.

In the fifth and sixth aspects of the present invention, the solid lubricating material flows out to each sliding surface during the linear motion and the swing, and a thin layer of the solid lubricant is formed on each sliding surface. As a result, each sliding surface can be constantly maintained in a low friction state by a thin layer of the solid lubricant, so that large swinging and linear movement of the structure can be smoothly tolerated for a long period of time. As the solid lubricant, a material mainly composed of graphite and mixed with polytetrafluoroethylene or the like is preferable, but the present invention is not necessarily limited to this.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of the present invention. In addition,
The present invention is not limited to these examples.

1 to 4, a shoe device 1 according to the present embodiment is shown.
Has relatively long inner surfaces 2 and 3 which extend flat in the direction of the bridge axis, which is a direct movement direction of the bridge girder 8 as a structure, and face each other, and are fixed to the pier 5 as a base on the lower surface 4. A lower shoe 6, an upper shoe 9 fixed to a bridge girder 8 on an upper surface 7, and a lower shoe 6.
Bearing device 10 that allows the upper shoe 9 to move linearly and swingably with respect to
Is provided.

A relatively long lower shoe 6 extending in the bridge axis direction is
Bottom part 11 and side wall part 1 formed integrally with bottom part 11
A lower shoe main body 14 having a U-shaped cross section and having lower and upper side walls 12 and 13 facing each other.
Relatively thin sliding plates 17 and 18 made of a stainless steel plate or the like fixed to the inner side surfaces 15 and 16 respectively,
2 and 13 are provided with retaining plates 19 and 20 secured to the top surfaces by bolts or the like.

The lower shoe 6 is connected to the pier 5 by a large number of locking blocks 22 and bolts 23 at the flange 21 of the lower shoe body 14.
And is fixed to the pier 5.

The upper shoe 9 has a rectangular plate-shaped or disk-shaped pedestal portion 31 to which the bridge girder 8 is fixed on the upper surface 7 via an anchor bolt 30 or the like, and hangs down from the pedestal portion 31. And a disk-shaped retaining washer 33 fixed to the lower end surface of the cylindrical portion 32 with bolts or the like.

The bearing device 10 has a concave spherical inner surface 41 and outer surfaces 42 and 43 opposed to each other, and has a bearing body 44 interposed between the lower shoe 6 and the upper shoe 9.
And a spherical bearing 46 having a convex spherical outer surface 45 slidably in contact with the concave spherical inner surface 41 of the bearing body 44 and fixed to the upper shoe 9; And 3 having flat outer surfaces 47 and 48 slidably in contact with
Flat bearings 49 and 50 are fixed to the outer surfaces 42 and 43 of the bearing body 44.

The outer surfaces 42 and 43 of the bearing body 44 are formed with shallow rectangular recesses 51 and 52, respectively, and the recesses 51 and 52 are respectively provided with flat bearings 49 and 50, respectively. The thin plates 53 and 54 for adjusting the amount of protrusion from the outer side surfaces 42 and 43 are arranged and fixed to the bearing body 44 by welding or the like.
Holding plates 55 and 56 holding flat bearings 49 and 50
Are fixed by welding or the like.

The bearing body 44 comprises halves 57 and 58 which are similarly formed and arranged symmetrically. The halves 57 and 58 are joined together at their flanges 59 and 60 to form a bolt-nut 61. It is integrated.

The spherical bearing 46 is formed of an annular body having a through-fitting hole 62 at the center and having an annular outer peripheral surface formed as a convex spherical outer surface 45, and is dispersed on the convex spherical outer surface 45. A solid lubricant 64 is provided in the large number of circular recesses 63 formed.
Is embedded, and the exposed surface of the solid lubricant 64 is the outer surface 4.
5 and slidably contact the concave spherical inner surface 41 of the bearing body 44. The cylindrical portion 3 of the upper shoe 9 is inserted into the through fitting hole 62.
2 are fitted, so that the upper shoe 9 is a spherical bearing 46
It is stuck to.

Circular recesses 71 and 7 of holding plates 55 and 56
2 and the plate-shaped bearings 49 and 5 fitted and held respectively.
0 is formed in a disk shape, and its circular outer surface 4
Solid lubricants 75 and 76 are buried in a large number of circular recesses 73 and 74 formed in a dispersed manner in 7 and 48, respectively. The outer surfaces 47 and 48 of the plate-like bearings 49 and 50 in which the solid lubricants 75 and 76 are respectively embedded, together with the exposed surfaces of the solid lubricants 75 and 76, respectively, correspond to the inner surfaces 2 and 3 of the lower shoe 6 respectively. The sliding plates 17 and 18 are slidably in contact with the respective exposed surfaces.

For installation between the bridge girder 8 and the pier 5, the upper shoe 9 is fixed at one end to the bracket 78 fixed to the pedestal 31 and at the other end to the side walls 12 and 13. Temporary fixings 80 respectively fixed to the brackets 79
, Is temporarily fixed to the lower shoe 6 so as not to directly move and swing with respect to the lower shoe 6, and after installation, the temporary fixing bracket 80 is removed.

The above-described shoe device 1 is interposed between a bridge girder 8 and a pier 5 that respectively connect a floating bridge 81 and a land 82 and an artificial island 83 as shown in FIG. Make up the body.

The floating bridge 81 as a floating type structure includes a bridge body 84 and a pontoon (floating) 86 for supporting the bridge body 84 on the sea surface 85. Is connected to one end 87 of the bridge girder 8 on the land 82 side via a releasable hinge mechanism 88 (see FIG. 7) so as to be rotatable in a horizontal plane. One end 89 of the bridge girder 83 on the 83 side is rotatably connected in the horizontal plane via a hinge mechanism 90 which is also releasable, while being fixed underwater on the land 82 side and the artificial island 83 side, respectively. Thus, they are sandwiched and held by a pair of extendable support mechanisms 91 and 92 so as not to move.

When the ship passes, the hinge connection in one of the hinge mechanisms 88 and 90 is released, and one side of the support mechanisms 91 and 92 is lowered by a hydraulic jack or the like. As shown in the figure, the tugboat 93 rotates in a horizontal plane.

When the floating bridge 81 is rotated, each of the bridge girders 8 on the land 82 side and the artificial island 83 side has one ends 87 and 89 of a hydraulic jack or the like so as to allow the floating bridge 81 to rotate. As a result, the pier 94 can be lifted slightly above the pier 94 adjacent to the pier 5, that is, in the direction A.

Each of the bridge girders 8 is designed such that one end 87 and 89 can be lifted in the direction A, and the other ends 95 and 96 can be moved on the pier 5 in the direction of the bridge axis.
Each bridge girder 8 is supported by a roller or roller (not shown) interposed between each bridge girder 8 and each pier 5 in addition to the shoe device 1 that guides and supports each bridge girder so as to be able to move linearly and swingably. Further, the movement of the bridge shaft in the bridge axis direction is prevented by a suitable stopper mechanism (not shown).

The shoe device 1, the pier 5 on which the shoe device 1 is mounted and fixed on the upper surface, and the end portion 95 (or 96) by the shoe device 1
In the bridge structure 97 (or 98) provided with the bridge girder 8 which is guided and supported so as to be able to move linearly and swingably, the shoe device 1 moves the bridge girder 8 in the bridge axis direction by the flat bearings 49 and 50. While guiding by sliding each of the outer side surfaces 47 and 48 with each of the inner side surfaces 2 and 3 of the lower shoe 6, the swing of the bridge girder 8 is
The guide is supported by sliding between the convex spherical outer surface 45 of the spherical bearing 46 and the concave spherical inner surface 41 of the bearing body 44.

In the shoe device 1, since the bearing device 10 includes the spherical bearing 46 and the flat bearings 49 and 50, large swing and linear movement of the bridge girder 8 can be tolerated. Since the movement and the linear movement are restricted and performed between the flat inner surfaces 2 and 3 facing each other of the lower shoe 6, the bridge girder 8 can always be guided and maintained at a predetermined position.

Further, in the shoe device 1, a plurality of recesses 63 in which a solid lubricant 64 is embedded are formed on the convex spherical outer surface 45 of the spherical bearing 46, and the exposed surface of the solid lubricant 64 is The plurality of recesses 73 in which solid lubricants 75 and 76 are embedded are slidably in contact with the concave spherical inner surface 41 of the bearing body 44 together with the solid lubricants 75 and 76 on the outer surfaces 47 and 48 of the plate bearings 49 and 50. And 74 are formed so that the exposed surfaces of the solid lubricants 75 and 76 are slidably in contact with the inner surfaces 2 and 3 of the lower shoe 6 together with the outer surfaces 47 and 48. Is constantly maintained in a low friction state by the solid lubricants 64 and 75 and 76, and large swinging and linear movement of the bridge girder 8 can be smoothly tolerated.

[0035]

According to the present invention, the structure, in particular, one end is connected to the floating structure, and the other end of the structure whose position fluctuates greatly is preferably supported in a linear and swingable manner. be able to.

[Brief description of the drawings]

FIG. 1 shows an example of a preferred embodiment of the present invention.
FIG. 2 is a sectional view taken along line II of FIG.

FIG. 2 is a sectional view taken along line II-II of the example shown in FIG.

FIG. 3 is an enlarged side sectional view of the example shown in FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is an enlarged perspective view of a lower shoe shown in FIG. 1;

6 is an explanatory side view of a bridge girder, a floating bridge, and the like in which the example shown in FIG. 1 is used.

FIG. 7 is an explanatory plan view of the operation of the bridge girder and the floating bridge shown in FIG. 7;

[Description of Signs] 1 shoe device 2, 3 inner surface 4 lower surface 5 bridge pier 6 lower shoe 7 upper surface 8 bridge girder 9 upper shoe 10 bearing device 41 concave spherical inner surface 42, 43 outer surface 44 bearing body 45 convex spherical outer surface 46 Spherical bearing 47, 48 Outer surface 49, 50 Flat bearing

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 591016840 Harumoto Tekko Co., Ltd. 6-20-34 Minamienkajima, Taisho-ku, Osaka-shi, Osaka (71) Applicant 000006208 Mitsubishi Heavy Industries, Ltd. Marunouchi, Chiyoda-ku, Tokyo, Japan 5-1 (71) Applicant 000000974 Kawasaki Heavy Industries, Ltd. 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo (71) Applicant 390007788 Matsuo Bridge Co., Ltd. 3-4-1 Tsurumachi, Taisho-ku, Osaka-shi, Osaka No. 18 (71) Applicant 591099212 Katayama Stratech Co., Ltd. 6-2-21 Minamionkajima, Taisho-ku, Osaka-shi, Osaka (71) Applicant 000103644 Oiles Industry Co., Ltd. 1-3-2 Shibadaimon, Minato-ku, Tokyo ( 72) Inventor Masao Sashimi 1-2-2, Umeda 1-chome, Kita-ku, Osaka City, Osaka Pref. 1-89, Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka Inside Hitachi Zosen Corporation (72) Inventor Ikuo Shimoda 1-3-2, Shiba-Daimon, Minato-ku, Tokyo Inside Oiles Industry Co., Ltd. (72) Inventor Nao Iwaki Bunch 1-3-2 Shiba-Daimon, Minato-ku, Tokyo Oil industry Co., Ltd. F term (reference) 2D059 AA34 BB11 BB15 GG01 GG59

Claims (8)

[Claims] 1. A lower shoe fixedly attached to a base on a lower surface, an upper shoe fixed to the structure on an upper surface, and a lower shoe having inner side surfaces extending flat in the direction of direct movement of the structure and facing each other. A bearing device that allows the upper shoe to move linearly and swingably with respect to the shoe, the bearing device having a concave spherical inner surface and outer surfaces facing each other, and A bearing body interposed between the upper shoe, a spherical bearing fixed to the upper shoe having a convex spherical outer surface slidably in contact with the concave spherical inner surface of the bearing body, The structure has a flat outer surface in sliding contact with each inner surface of the shoe, and a flat bearing fixed to each outer surface of the bearing body. A shoe device that freely guides and supports. 2. The lower shoe has a lower shoe main body having a U-shaped cross section and a sliding plate fixed to an inner surface facing the lower shoe main body, respectively. The shoe apparatus according to claim 1, wherein each of the outer surfaces of the flat bearing is slidably contacting the exposed surface of each sliding plate. 3. The upper shoe has a rectangular plate-shaped or disk-shaped pedestal portion to which a structure is fixed on an upper surface, and a columnar portion that hangs down from the pedestal portion and is integrally formed with the pedestal portion. The spherical bearing has a through fitting hole in the center, the cylindrical portion of the upper shoe is fitted into the through fitting hole of the spherical bearing, and the upper shoe is fixed to the spherical bearing. The shoe device according to claim 1 or 2, wherein: 4. The spherical bearing according to any one of claims 1 to 3, wherein the spherical bearing is formed of an annular body having a through-hole at the center, and an outer peripheral surface of the annular body is formed as a convex spherical outer surface. The described shoe device. 5. A convex spherical outer surface of a spherical bearing is formed with a plurality of recesses in which a solid lubricant is embedded, and an exposed surface of the solid lubricant is a concave spherical inner surface of a bearing body. The shoe apparatus according to any one of claims 1 to 4, wherein the shoe apparatus is slidably in contact with the shoe. 6. A plurality of recesses in which a solid lubricant is buried are formed on the outer surface of the flat bearing, and the exposed surface of the solid lubricant is slidable on each inner surface of the lower shoe. The shoe device according to any one of claims 1 to 5, wherein the shoe device is in contact with the shoe. 7. A lower shoe, an upper shoe, a bearing device, a bearing body, used in the shoe device according to any one of claims 1 to 6,
Spherical or flat bearing. 8. The shoe device according to claim 1, a base on which the shoe device is mounted and fixed on an upper surface, and an end portion which can be linearly and oscillated by the shoe device. And a structure guided and supported by the vehicle.