JP5579095B2 - Bearing girder support structure - Google Patents

Description

  The present invention relates to a support structure for a track girder, and more particularly to a support structure for a track girder that supports a track girder on which a monorail or the like travels.

Conventionally, a monorail or the like travels on a plurality of track girders arranged in the traveling direction, and both ends of each track girder are supported by a foundation structure (such as a pier). The track girder absorbs bending (inclination in the support part) due to the live load of the traveling monorail and elongation due to temperature changes, so one end is a pin support (a pair of pins) and the other end is a roller support ( It was supported (4-point support) by a pair of rollers).
However, such pin bearings and roller bearings have a complicated structure and a large number of members, so that the price is high. In addition, because the force that tries to tilt the track girder (the force that rotates in the plane perpendicular to the longitudinal direction of the track girder) acts, when the pin or roller wears over time (uneven wear), Three-point support was reached, and the track girder was rolling.
Then, the support structure of the track girder which consists of a rubber support replaced with a pin and a roller is disclosed (for example, refer patent document 1).

JP-A-8-333702 (page 3-4, FIG. 2)

However, in the invention disclosed in Patent Document 1, a steel spherical seat (convex surface) and laminated rubber are integrally formed, and the spherical seat is formed on the lower surface of the upper collar installed in the track girder. The spherical surface (concave surface) is slidably contacted, and the lower surface of the laminated rubber is installed on the foundation structure.
In other words, if a force is applied to the track girder (a force to rotate it in a plane perpendicular to the longitudinal direction of the track girder), the laminated rubber will be compressed and deformed, and the force that bends the track girder. When (same as bending moment) acts, the laminated rubber undergoes shear deformation, and thus has the following problems.

(A) Because the track girders roll due to live loads (the force to bend and the force to tilt the track girders), the deviation (step) that occurs between the track girders contributes to the vibration and the monorail ride comfort Getting worse.
(Ii) Since the regulating rod serves as both a horizontal load receiving portion and a sliding portion for rotation due to live load and movement due to temperature change, the positioning washer is displaced (deviation) and the track is displaced (deviation). .

  The present invention solves the above-described problems, and can suppress the rolling of the track girders due to live loads and the change in the attitude of the track girders due to deterioration over time. It is an object of the present invention to provide a support structure for a track girder that does not cause deviation (deviation) with respect to movement due to change.

(1) A bearing structure for a track girder according to the present invention includes a foundation structure including an anchor bolt and a regulating rod protruding upward;
A lower shoe spherical surface, which is a spherical surface depressed downward, a lower shoe through hole through which the anchor bolt can pass through the south pole of the lower shoe spherical surface, and a lower shoe plane perpendicular to the lower shoe through hole And the lower shoe
A lower washer spherical surface slidable on the lower shoe spherical surface, a lower washer through hole through which the anchor bolt can pass through the south pole of the lower washer spherical surface, and a lower washer plane perpendicular to the lower washer through hole An underlying washer;
An upper shoe bottom plate that is a flat plate, an upper shoe through hole that is formed in the upper shoe bottom plate and through which the anchor bolt can pass, an upper shoe restricting hole that is formed in the center of the upper shoe bottom plate, and an upper shoe bottom plate An upper shoe comprising: an upper shoe wall plate provided; and an upper shoe top plate fixed to the upper end of the upper shoe wall plate and parallel to the upper shoe bottom plate;
An upper washer spherical surface that slides upwardly on the upper shoe spherical surface; an upper washer through hole that passes through the north pole of the upper washer spherical surface; and an upper washer plane that is perpendicular to the upper washer through hole. A washer,
An upper nut spherical surface that slides on the upper washer spherical surface with a spherical surface depressed upward, an upper nut screw that passes through the north pole of the upper nut spherical surface and is screwed to the anchor bolt, and an upper nut outer surface that is parallel to the upper nut screw An upper nut comprising:
An orbital girder installed on the upper shoe top plate,
Have
The upper shoe inserted into the anchor bolt is placed on the lower shoe and the lower washer inserted into the anchor bolt, and the upper washer inserted into the anchor bolt is placed on the upper shoe, Further, the upper nut is screwed to the anchor bolt,
A movement restricting means is installed between the restriction rod of the foundation structure and the upper shoe restriction hole of the upper shoe.

(2) Further, the movement restricting means includes a spherical bearing that is a spherical surface protruding to the side where the restriction rod is installed, a spherical bearing receiver that slidably supports the spherical bearing, and the spherical bearing receiver. A regulation inner box to be held, and a regulation outer box for movably storing the regulation inner box,
A sliding plate is installed between an outer surface parallel to the girder axis of the orbiting girder of the inner regulation box and an inner surface parallel to the girder axis of the orbiting girder of the outer regulation box,
A taper plate is installed between an outer surface perpendicular to the girder axis of the track girder of the regulation outer box and an inner surface perpendicular to the girder axis of the race girder of the upper shoe regulation hole.
(3) Further, in place of the upper nut, a spherical washer having a spherical surface recessed upward and sliding on the spherical surface of the upper washer, and a nut screwed onto the anchor bolt are provided. To do.

(4) Furthermore, the support structure of the track girder according to the present invention includes a foundation structure including an anchor bolt and a restraining rod protruding upward,
A lower shoe washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
Shoe connecting bolts,
A rectangular bottom shoe bottom plate, a bottom shoe bolt hole formed in the bottom shoe bottom plate through which the anchor bolt passes, a bottom shoe restraining hole formed in the center of the bottom shoe bottom plate, and a spherical surface indented downward A lower shoe spherical surface, a lower shoe connecting hole through which the shoe connecting bolt passes through the south pole of the lower shoe spherical surface, a lower shoe bolt hole and a lower shoe connecting hole surrounding the lower shoe restraining hole. A lower shoe comprising an inner upper formed lower shoe wall; and
An upper shoe fixing lower washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
An upper shoe fixing upper washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
An upper shoe fixing nut comprising: a lower surface whose upper surface is depressed upward and sliding on the upper surface of the upper shoe fixing upper washer; and an internal thread that is screwed into the anchor bolt;
An upper shoe bottom plate that is a flat plate, an upper shoe fixing bolt hole that is formed in the upper shoe bottom plate and through which the anchor bolt can pass, an upper shoe connection hole that is formed in the upper shoe bottom plate and through which the connection bolt can pass, An upper shoe restraining hole formed at the center of the upper shoe bottom plate, an upper shoe wall plate standing on the upper shoe bottom plate, and an upper shoe fixed to the upper end of the upper shoe wall plate and parallel to the upper shoe bottom plate An upper shoe comprising a top plate;
A lower washer spherical surface that slides downwardly on the lower shoe spherical surface of the lower shoe, a lower washer through hole that passes through the south pole of the lower washer spherical surface, and a lower washer plane that is perpendicular to the lower washer through hole, A lower washer comprising:
An upper washer spherical surface protruding upward, an upper washer through-hole through which the connecting bolt passes through the south pole of the upper washer spherical surface, and an upper washer plane perpendicular to the upper washer through-hole. A washer,
An upper washer holding spherical surface that slides on the upper washer spherical surface with a spherical surface that is depressed upward, an upper washer holding through hole that passes through the north pole of the upper washer holding spherical surface and through which the connecting bolt passes, and the upper washer holding through hole An upper washer retainer metal surface that is perpendicular to the upper washer retainer,
A lower connection nut and an upper connection nut screwed into the shoe connection bolt;
Have
The lower shoe inserted into the anchor bolt is placed on the lower shoe fixed lower washer inserted into the anchor bolt, and the lower shoe fixed upper washer inserted into the anchor bolt is placed on the lower shoe And the upper fixing nut is screwed to the anchor bolt, and a movement restraining step is installed between the restraining rod of the foundation structure and the lower shoe restraining hole of the lower shoe,
The lower washer through-hole is inserted into the connecting bolt passing through the lower shoe connecting hole so that the lower washer spherical surface of the lower washer is slidable on the lower shoe-spherical surface of the lower shoe,
The connecting bolt penetrating the lower washer through hole is inserted into the lower shoe connecting hole so that the lower shoe is placed on the lower washer upper surface of the lower washer,
The connecting bolt penetrating the lower shoe connecting hole is inserted into the upper washer through hole so that the upper washer is placed on the lower shoe,
The connecting bolt penetrating through the upper washer through hole is inserted into the upper washer holding through hole so that the upper washer holding metal fitting is placed on the upper washer spherical surface of the upper washer,
An upper connection nut and a lower connection nut are screwed into both ends of the connection bolt, respectively.

(5) The lower shoe wall surface of the lower shoe enters a range surrounded by the upper shoe wall surface of the upper shoe, and a gap is formed between the outer surface of the lower shoe wall surface and the inner surface of the upper shoe wall surface. It is formed.
(6) Further, the movement restraining means is characterized in that a taper plate is installed between the outer surface of the restraint lot of the substructure and the inner surface of the lower shoe restraining hole.

Since the structure for supporting a track girder according to the present invention has the above-described configuration, the following effects can be obtained.
(I) Each of the lower shoes inserted into the anchor bolt and placed on the base upper plate, the lower washer sliding on the spherical surface of the lower shoe, the upper shoe placed on the lower washer, and the upper shoe And an upper nut that slides on the spherical surface of the upper washer. That is, the upper shoe is held between the lower washer and the upper washer, the lower washer is supported by the lower shoe so as to be tiltable, and the upper washer is supported by the upper shoe so as to be tiltable.
Therefore, when a live load (a force for bending or a force to tilt the track girder) is applied, the upper shoe is caused by sliding between the lower shoe and the lower washer that are in spherical contact with each other and sliding between the upper washer and the upper nut. Is inclined. For this reason, there is no bending like conventional laminated rubber, rolling of the track girder installed on the upper shoe is suppressed, noise and vibration due to deviation (step) between the track girders is suppressed, and the monorail ride Comfort is improved.
Further, a movement restricting means is installed between the restriction rod of the foundation structure and the upper shoe restricting hole of the upper shoe, and the position of the upper shoe is determined by the movement restricting means, so that positioning during installation becomes easy. .

(Ii) The movement restricting means includes a spherical bearing installed on the restricting rod, a restricting inner box for holding the spherical bearing on the spherical surface, and a restricting outer box for movably storing the restricting inner box, The regulated inner box is movable in parallel to the girder axis with respect to the regulated outer box, and the regulated outer box is positioned in the horizontal direction with respect to the upper shoe regulating hole. Inclination of the shoe is allowed.
(Iii) Further, instead of the upper nut, a spherical washer and a nut (having a flat end surface) are provided, so that the nut becomes inexpensive and the nut can be easily tightened (screwed into the anchor bolt).

(Iv) Furthermore, since the lower shoe is installed on the foundation structure by the anchor bolt and the upper shoe is installed on the lower shoe by the shoe connecting bolt, the upper shoe is not installed directly on the foundation structure. It is installed so that it can tilt freely.
That is, the lower shoe placed on the lower shoe, the lower washer that slides on the spherical surface of the lower shoe, and the lower washer placed on the lower washer, each inserted into a shoe connecting bolt that passes through the lower shoe connecting hole of the lower shoe. The upper shoe, the upper washer placed on the upper shoe, the upper washer presser fitting that slides on the spherical surface of the upper washer, and the upper connection nut and the lower connection nut that are screwed to both ends of the connection bolt. Have. That is, the upper shoe is held by the lower washer and the upper washer, the lower washer is supported by the lower shoe so as to be tilted, and the upper washer is supported by the upper washer presser fitting so as to be tiltable.
Therefore, when a live load (a force to bend or a force to tilt the track girder) is applied, the sliding between the lower shoe and the lower washer that are in spherical contact with each other and the sliding between the upper washer and the upper washer holding metal fitting, The upper shoe is inclined. For this reason, rolling of the track girder installed on the upper shoe is suppressed, generation of noise and vibration due to a shift (step) between the track girders is suppressed, and the ride quality of the monorail is improved.
Furthermore, a movement restraining means is installed between the restraining rod of the foundation structure and the lower shoe restraining hole of the lower shoe, and the position of the lower shoe is determined by the movement restraining means, so that positioning during installation is facilitated. .

(V) Since the lower shoe wall surface of the lower shoe enters the range surrounded by the upper shoe wall surface of the upper shoe and a gap is formed between them, the movement range of the upper shoe with respect to the fixed lower shoe is It is regulated and excessive force does not act on the shoe connecting bolt.
(Vi) Further, since the movement restraining means includes the tapered plate installed between the restraining lot and the lower shoe restraining hole, the positioning of the lower shoe is facilitated.

The front view explaining the support structure 1 of the track girder concerning Embodiment 1 of this invention. The side view which shows a part of bearing structure 1 of the track girder shown in FIG. The front view which expands and shows a part of the support structure 1 of the track girder shown in FIG. The front view and top view which expand and show a part of support structure 1 of the track girder shown in FIG. The side view for demonstrating the behavior of the support structure 1 of the track girder shown in FIG. The front view explaining the support structure 2 of the track girder which concerns on Embodiment 2 of this invention. Front view illustrating a support structure 2 for a track girder according to a second embodiment of the present invention The side view which expands and shows a part of the support structure 2 of the track girder shown in FIG. The top view which expands and shows a part of the support structure 2 of the track girder shown in FIG. The side view for demonstrating the behavior of the support structure 2 of the track girder shown in FIG.

[Embodiment 1]
1 to 5 illustrate a support structure 1 for a track girder according to a first embodiment of the present invention. FIG. 1 is a front view showing a part in cross section, and FIG. 3 is a partially enlarged front view, FIG. 4 (a) is a partially enlarged front view, and FIG. 4 (b) is a partially enlarged plan view. FIGS. 5 and 5 are enlarged side views showing a part for explaining the behavior. In addition, each figure is shown typically, Comprising: The shape and quantity of each member are not limited to what is illustrated.

(Support structure)
1 and 2, both ends of the track girder 9 are tiltable (corresponding to pin support) and can be traversed by a predetermined distance in the longitudinal direction of the track girder 9 (hereinafter referred to as “girder axis direction X”) (sliding). (Corresponding to support) is supported by the substructure 10. That is, a lower shoe (same as the lower arm) 20 is installed on the foundation structure 10, an upper shoe (the same as the upper arm) 40 is installed on the lower shoe 20 via the lower washer 30, and the track girder 9 Is installed. Further, the movement of the upper shoe 40 is restricted by the movement restricting means 70.
The form in which the track girder 9 is supported is “the support structure 1 of the track girder”, the direction perpendicular to the girder axis direction X in the horizontal plane is “girder width direction Y”, and the vertical direction is “vertical direction Z”. Respectively. Hereinafter, the case where the track girder 9 is installed horizontally will be described. However, the present invention is not limited to this, and the track girder 9 may be inclined with respect to the horizontal plane. Hereinafter, each member will be described in detail.

(Foundation structure)
1 and 2, the foundation structure 10 is fixed to the ground (not shown), and includes a foundation upper plate 11 and a pair of anchor bolts that protrude upward through the foundation upper plate 11. 12a, 12b, and a regulating rod 13 that is disposed at the center of the pair of anchor bolts 12a, 12b and protrudes upward through the base upper plate 11.
The anchor bolts 12a and 12b pass through the foundation beam 14, and are attached to the foundation beam 14 by foundation washers 15a (not shown) and 15b and foundation nuts 16a (not shown) and 16b. The lower end penetrates the foundation sheath pipes 18 a and 18 b fixed to the foundation beam 14. The base washers 15a and 15b and the base nuts 16a and 16b are housed in base boxes 17a and 17b whose upper ends are fixed to the base beam 14.
In the following description, the description of the subscripts “a, b” is omitted for common or equivalent contents.

The base upper plate 11 is fixed to the upper end of the base sheath tube 18.
The restriction rods 13 are respectively installed below the foundation upper plate 11 on a fixing beam 19a installed on the foundation sheath pipe 18a and a fixing beam 19b installed on the foundation sheath pipe 18b. The fixing beam 19a and the fixing beam 19b may be integrated, and the restriction rod 13 may be fixed at the center of the integrated object. Further, the restriction rod 13 may be fixed to the foundation upper plate 11, and in this case, when the foundation upper plate 11 has a predetermined rigidity, the installation of the fixing beams 19a and 19b may be omitted.
The foundation upper plate 11 is exposed, and the foundation sheath tube 18 and the foundation beam 14 are surrounded by concrete (not shown). However, the present invention limits the foundation structure 10 to a reinforced concrete (steel concrete) structure. Instead, it may be a steel structure (having no concrete).

(Lower shoe)
In FIG. 3, the lower shoe 20 has a lower shoe spherical surface 21 that is a spherical surface that is depressed downward (same as a concave sphere), and a lower shoe through hole 22 that passes through the south pole of the lower shoe spherical surface 21. It is installed on the upper plate 11. At this time, the anchor shoe 12 can pass through the lower shoe through hole 22.
Note that a shim plate 24 is inserted between the lower surface 23 of the lower shoe 20 and the upper surface of the base upper plate 11 to enable correction of the position in the height direction of the lower shoe 20, but such correction is unnecessary. The shim plate 24 may be omitted. Moreover, the point which installs the lower shoe 20 in the base upper board 11 may be any.

(Lower washer)
The lower washer 30 includes a lower washer spherical surface 31 that is a spherical surface protruding downward (the same as a convex spherical surface), a lower washer through hole 32 that passes through the south pole of the lower washer spherical surface 31, and a lower washer that is perpendicular to the lower washer through hole 32. And a plane 33.
At this time, the radius of curvature of the lower washer spherical surface 31 that is a convex spherical surface is substantially the same as the radius of curvature of the lower shoe spherical surface 21 that is a concave spherical surface (exactly, the former is slightly smaller than the latter). 31 is received by the lower shoe spherical surface 21, and both abut in a substantially annular shape with a predetermined width in a slidable manner. That is, when the lower washer spherical surface 31 slides on the lower shoe spherical surface 21, the lower washer plane 33 is inclined (tilted) in a predetermined direction.

Further, the inner diameter of the lower washer through hole 32 is formed larger than the outer diameter of the anchor bolt 12. For this reason, the lower washer 30 is movable in the horizontal direction by a predetermined distance with respect to the anchor bolt 12 in a state where the anchor bolt 12 penetrates the lower washer through-hole 32, and the tilting is possible.
Further, a seal ring 34 surrounding the lower washer 30 and sandwiched between the upper surface of the lower shoe 20 and the lower surface of the upper shoe bottom plate 41 is disposed. Accordingly, foreign matter (such as dust or moisture) may be present on the sliding portion between the lower washer spherical surface 31 and the lower shoe spherical surface 21 or on the contact portion (which can slide) between the lower washer flat surface 33 and the lower surface of the upper shoe bottom plate 41. ) Is prevented from entering. Therefore, it is possible to delay the aging of the sliding portion, and thus the maintainability of the track girder support structure 1 is improved. It should be noted that the means for replacing the seal ring 34 may prevent foreign matter from entering the sliding portion, and the installation of the seal ring 34 may be omitted depending on the environment of the installation position.

(Upper shoe)
The upper shoe 40 includes a flat upper shoe bottom plate 41, an upper shoe through hole 42 formed in the upper shoe bottom plate 41 through which the anchor bolt 12 can pass, and an upper shoe wall plate 43 erected on the upper shoe bottom plate 41. The upper shoe top plate 44 is fixed to the upper end of the upper shoe wall plate 43 and is parallel to the upper shoe bottom plate 41.
Further, a rectangular through hole (hereinafter referred to as “upper shoe restricting hole”) in a plan view for installing the movement restricting means 70 at the center of the upper shoe bottom plate 41 (same as the center of the pair of upper shoe through holes 42). 47) is formed.
Further, on the upper surface of the upper shoe top plate 44, there are provided upper shoe protrusions 45 and upper shoe vertical bars 46 protruding upward, which are means for installing the track girder 9 on the upper shoe 40.

(Upper washer)
The upper washer 50 includes an upper washer spherical surface 51 that is a spherical surface protruding upward (the same as the convex spherical surface), an upper washer through hole 52 that passes through the north pole of the upper washer spherical surface 51, and an upper washer that is perpendicular to the upper washer through hole 52. And a flat surface 53. At this time, the anchor bolt 12 can pass through the upper washer through hole 52.

(Upper nut)
The upper nut 60 includes an upper nut spherical surface 61 that is a spherical surface that is recessed upward (same as a concave spherical surface), an upper nut screw 62 that passes through the north pole of the upper nut spherical surface 61, an upper nut outer surface 63 that is parallel to the upper nut screw 62, have. At this time, the upper nut screw 62 is screwed into a male screw (not shown) formed on the upper end portion of the anchor bolt 12.
The radius of curvature of the upper nut spherical surface 61 that is a concave spherical surface is substantially the same as the radius of curvature of the upper washer spherical surface 51 that is a convex spherical surface (more precisely, the former is slightly larger than the latter). Are received by the upper nut spherical surface 61, and both are slidably contacted in a substantially annular shape having a predetermined width. That is, when the upper washer spherical surface 51 slides on the upper nut spherical surface 61, the upper washer flat surface 53 tilts (tilts) in a predetermined direction.

Further, the inner diameter of the upper washer through hole 52 is formed larger than the outer diameter of the anchor bolt 12. For this reason, the upper washer 50 is movable in the horizontal direction by a predetermined distance with respect to the anchor bolt 12 in a state where the anchor bolt 12 penetrates the upper washer through hole 52, and the tilting is possible.
Further, the outer surface 63 of the upper nut is formed into a polygon (such as a hexagon) or an ellipse in plan view for the purpose of facilitating rotation in order to screw the upper nut 60 into a male screw (not shown) of the anchor bolt 12. Is formed. In the above, the upper nut 60 has a concave spherical surface. However, the present invention is not limited to this, and the upper nut 60 has a concave spherical washer having a concave spherical surface and a nut having a female screw. Alternatively, it may be divided. Further, in order to prevent the upper nut 60 from loosening, a nut that is screwed into the male screw of the anchor bolt 12 may be additionally installed.

(Movement restriction means)
In FIG. 4, the movement restricting means 70 is installed between the restricting rod 13 and the upper shoe 40 and is disposed in the upper shoe restricting hole 47. The movement restricting means 70 is installed (fitted) to the upper end portion of the restricting rod 13 so as not to be pulled out, and supports a spherical bearing 71 which is a spherical surface (convex spherical surface) protruding sideways and the spherical bearing 71 slidably. The spherical bearing receiver 72, the outer casing holding the spherical bearing receiver 72 has a rectangular regulation inner box 73, and the regulation inner box is movably accommodated, and the outer casing has a rectangular regulation outer box 75. Yes.
The inner regulation box 73 has a pair of outer surfaces 73a and 73b parallel to the beam axis direction X and a pair of outer surfaces 73c and 73d parallel to the beam width direction Y on the outside.
Further, the outer regulation box 75 has a pair of inner side surfaces 75a and 75b parallel to the girder axis direction X and a pair of inner side surfaces 75c and 75d parallel to the girder width direction Y. The outer regulation box 75 has a pair of outer surfaces 75e and 75f parallel to the girder axis direction X and a pair of outer surfaces 75g and 75h parallel to the girder width direction Y on the outside.

(Sliding board)
Sliding plates 74a and 74b are inserted (indented) between the outer side surfaces 73a and 73b of the inner regulation box 73 and the inner sides 75a and 75b of the outer regulation box 75, respectively. Therefore, the outside regulation box 75 is movable in the girder axis direction X with respect to the inside regulation box 73. At this time, the sliding plates 74a and 74b may slide between the outer side surfaces 73a and 73b of the inner regulation box 73 or between the inner side faces 75a and 75b of the outer regulation box 75. You may slide.
The distance 73w between the outer side surface 73c and the outer side surface 73d of the inner regulation box 73 is smaller than the distance 75w between the inner side surface 75c and the inner side surface 75d of the regulation outer box 75. Therefore, since the inner regulation box 73 can move relative to the outer regulation box 75 by the clearance Δw (= 75w−73w) of the maximum distance 73w and the distance 75w, the center of the regulation inner box 73 and the regulation outer box 75 are initially set. If the centers are matched, the inner regulation box 73 can move relative to the outer regulation box 75 by “Δw / 2” on one side in the beam axis direction X and “Δw / 2” on the other side.
The material, shape and size of the sliding plates 74a and 74b are not limited. For example, if it is formed of a stainless steel plate with a polished surface, it is excellent in corrosion resistance and slipperiness.

(Positioning mechanism)
The upper shoe restricting hole 47 formed in the upper shoe 40 has a rectangular shape, and includes a pair of inner side surfaces 48a and 48b parallel to the beam axis direction X, and a pair of inner side surfaces 48c and 48d parallel to the beam width direction Y. have.
Positioning mechanisms 79a and 79b are installed between the outer surfaces 75e and 75f of the outer regulation box 75 and the inner faces 48a and 48b of the upper shoe restriction hole 47, and the outer faces 75g and 75h of the outer regulation box 75 and the upper shoe. Positioning mechanisms 79 c and 79 d are installed between the inner side surfaces 48 c and 48 d of the restriction hole 47.

Since the positioning mechanisms 79a, 79b, 79c, and 79d are all similar mechanisms, the positioning mechanism 79a will be described.
The positioning mechanism 79a includes an outer box taper washer 76a whose one side abuts against the outer side surface 75e of the regulation outer box 75, an adjustment plate 78a whose one side abuts against the inner side 48a of the upper shoe regulation hole 47, and the outer box. An upper shoe taper plate 77a that is slidably in surface contact with both the other side surface of the taper washer 76a and the other side surface of the adjustment plate 78a is provided.
Since at least one side surface of the upper shoe taper plate 77a is inclined in the vertical direction Z, by moving the upper shoe taper plate 77a in the vertical direction Z, one side surface of the outer box taper washer 76a and the adjustment plate The distance from one side surface of 78a varies.

  Therefore, the position of the upper shoe 40 with respect to the outer regulation box 75 (same as the regulation rod 13) can be determined at a predetermined position by adjusting the positions of the taper plates 77a, 77b, 77c, 77d in the vertical direction Z. It becomes possible.

(Installation operation)
A track girder 9 is installed on the upper shoe top plate 44 of the upper shoe 40. At this time, the upper shoe projection 45 formed on the upper shoe top plate 44 enters a recess (not shown) formed on the lower surface of the track girder 9 or the upper shoe vertical position provided upright on the upper shoe top plate 44. The streak 46 enters a hole (not shown) formed in the track girder 9. In addition, the installation point of the upper shoe 40 and the track girder 9 is not limited.
Also, considering the mounting height and mounting angle of the track girder 9,
A shim plate 24 having a predetermined thickness is inserted and installed in the anchor bolt 12 so that the upper surfaces of the pair of shim plates 24 are horizontal. Then, the lower shoe 20 and the lower washer 30 are inserted into the anchor bolt 12, and further, the upper shoe 40 is inserted into the anchor bolt 12.
Then, the upper washer 50 is inserted into the anchor bolt 12, and the upper nut 60 is screwed into the male screw of the anchor bolt 12. Therefore, the upper shoe 40 is held between the lower washer 30 and the upper washer 50.
Further, a movement restricting means 70 is installed between the restricting rod 13 and the upper shoe restricting hole 47 of the upper shoe 40. At this time, as described above, the position of the taper plate 77a and the like in the vertical direction Z is adjusted and positioned.
As described above, the upper shoe 40 can be moved relative to the foundation structure 10 in the girder axis direction X and can be inclined with respect to the vertical direction Z, and is installed on the foundation structure 10 by an easy positioning operation. It will be.

(Behavior due to live load)
Since the support structure 1 of the track girder has the above configuration, even when the temperature of the track girder 9 changes, it is restricted by the restriction rod 13 within the range of the clearance Δw (or Δw / 2) in the movement restriction means 70. The track girder 9 can be expanded and contracted (see FIG. 5A).
Further, when a monorail (vehicle) or the like moves and a live load is applied, the support portion (upper shoe 40) is inclined according to the amount of deflection of the track girder 9, so that abnormal stress is applied to the track girder 9. Does not occur (see FIG. 5B).
At this time, since the support portion is formed by the lower shoe 20 having the lower shoe spherical surface 21 and the lower washer 30 having the lower washer spherical surface 31, it is possible to make a reasonable inclination (tilt), and it is solid. is there. In particular, if the lower shoe spherical surface 21 (or the entire lower shoe 20) and the lower washer spherical surface 31 (or the entire lower washer 30) are made of steel (including alloy steel, cast steel, stainless steel, etc.), a non-ferrous alloy, or a resin, it will deteriorate over time. Since it is not easy to maintain, maintenance is improved and rolling of the track girder is eliminated.

[Embodiment 2]
6 to 10 illustrate the support structure 2 for a track girder according to the second embodiment of the present invention. FIG. 6 is a front view showing a part in cross section, and FIG. 8 is a partially enlarged side view, FIG. 9A is a partially transparent plan view, and FIG. 9B is a partially enlarged plan view. FIG. 10 and FIG. 10 are side views showing an enlarged part for explaining the behavior. In addition, each figure is shown typically, Comprising: The shape and quantity of each member are not limited to what is illustrated. In addition, the same reference numerals are given to the same or corresponding parts as in the first embodiment, and a part of the description is omitted.

(Support structure)
In FIG. 6 and FIG. 7, the support structure 1 for the track girder shown in the first embodiment is such that the lower shoe 20 and the upper shoe 40 are connected (installed) to the foundation structure 10 by the anchor bolts 12. In the track girder support structure 2 shown in the second embodiment, the lower shoe 200 is installed on the foundation structure 100 by the anchor bolts 12, and the upper shoe 400 is connected (installed) to the lower shoe 200 by the shoe connecting bolt 80. Is.
A direction perpendicular to the beam axis direction X in the horizontal plane is referred to as a “beam width direction Y”, and a vertical direction is referred to as an “up-down direction Z”. Hereinafter, the case where the track girder 9 is installed horizontally will be described. However, the present invention is not limited to this, and the track girder 9 may be inclined with respect to the horizontal plane. Hereinafter, each member will be described in detail.

(Foundation structure)
The foundation structure 100 is fixed to the ground (not shown), and includes a foundation upper plate 11 and four anchor bolts 12a, 12b, 12c that protrude upward through the foundation upper plate 11. 12d and four anchor bolts 12a, 12b, 12c, and 12d, and a restraining rod 130 that protrudes upward through the foundation upper plate 11 is provided. In the following description, the description of the subscripts “a, b, c, d” for the common or equivalent content is omitted.

(Lower shoe)
The lower shoe 200 is formed of a rectangular lower shoe bottom plate 210, a lower shoe bottom plate 210, a lower shoe bolt hole 220 through which the four anchor bolts 12 respectively pass, and a lower shoe bolt hole 220 formed at four locations. A rectangular lower shoe restraining hole 230 formed in the center (the same as the center of the pair of lower shoe connecting holes 240), a lower shoe connecting hole 240 through which the pair of shoe connecting bolts 80 pass, and a lower shoe restraining hole 230, respectively. And has a lower shoe wall surface 250 that is a cylinder in a rectangular shape in a plan view protruding upward inside the lower shoe bolt hole 220 and the lower shoe connecting hole 240.

Then, a lower shoe fixing lower washer 221 having a flat bottom surface and a spherical surface (convex spherical surface) whose upper surface protrudes upward is inserted into the anchor bolt 12 and placed on the foundation upper plate 11, and the lower shoe bolt of the lower shoe 200. The anchor bolt 12 is inserted into the hole 220 and placed on the lower shoe fixing lower washer 221. Further, the lower shoe fixing upper washer 222, which is a spherical surface (convex spherical surface) with a flat lower surface and an upper surface protruding upward, is an anchor bolt. 12 and placed on the lower shoe 200. A lower shoe fixing nut 223, which is a spherical surface (concave spherical surface) whose lower surface is recessed upward, is screwed into a male screw (not shown) formed at the upper end portion of the anchor bolt 12.
Therefore, by tightening the lower shoe fixing nut 223, the lower shoe 200 is fixed to the foundation upper plate 11 while being pressed between the lower shoe fixing lower washer 221 and the lower shoe fixing upper washer 222. Note that both surfaces of the lower shoe fixing lower washer 221 and the lower shoe fixing upper washer 222 may be flat.
In FIG. 6, the shim plate 224 is inserted between the lower shoe fixing lower washer 221 and the base upper plate 11, but may be omitted.

For the pair of lower shoe connection holes 240, the lower shoe spherical surface 21 is a spherical surface (same as a concave sphere) in which the lower shoe connection hole 240 is indented downward on the upper surface of the lower shoe bottom plate 210. Are formed. A lower shoe counterbore 241 that surrounds the lower shoe connection hole 240 is formed on the lower surface of the lower shoe bottom plate 210.
Furthermore, the movement restraining means 90 is installed in the lower shoe restraining hole 230 to make the lower shoe 200 immovable in the horizontal direction with respect to the foundation structure 100. The lower shoe wall surface 250 is formed by the upper shoe 400. The upper shoe 400 abuts against the upper shoe wall surface 450 to restrict the horizontal movement of the upper shoe 400 within a predetermined range, which will be described in detail separately.

(Lower washer)
The lower washer 30 includes a lower washer spherical surface 31 that is a spherical surface protruding downward (the same as the convex spherical surface), a lower washer through hole 32 that passes through the south pole of the lower washer spherical surface 31 and through which the shoe connecting bolt 80 passes, and a lower washer. A lower washer plane 33 perpendicular to the through hole 32.
At this time, the radius of curvature of the lower washer spherical surface 31 that is a convex spherical surface is substantially the same as the radius of curvature of the lower shoe spherical surface 21 that is a concave spherical surface (exactly, the former is slightly smaller than the latter). 31 is received by the lower shoe spherical surface 21, and both abut in a substantially annular shape with a predetermined width in a slidable manner. That is, when the lower washer spherical surface 31 slides on the lower shoe spherical surface 21, the lower washer plane 33 is inclined (tilted) in a predetermined direction. Further, the inner diameter of the lower shoe connecting hole 240 is formed larger than the outer diameter of the shoe connecting bolt 80.

(Upper shoe)
The upper shoe 400 includes a rectangular upper shoe bottom plate 410, an upper shoe connection plate 420 formed on the upper shoe bottom plate 410, through which the shoe connection bolt 80 inserted into the lower shoe connection hole 240 of the lower shoe 200 can pass, And an upper shoe wall surface 450 that is a cylindrical tube that protrudes upward on the outer peripheral side of the upper shoe connecting hole 420 in a plan view. Further, an upper shoe top plate 44 parallel to the upper shoe bottom plate 410 is installed at the upper end of the upper shoe wall surface 450.

  Then, the lower shoe wall surface 250 enters the inside of the upper shoe wall surface 450. That is, the distance between the outer surfaces of the upper shoe wall surface 450 is smaller than the distance between the inner surfaces of the lower shoe wall surface 250 (more precisely, the distance in the digit axis direction X and the distance in the digit width direction Y, respectively). Therefore, the upper shoe 400 can move in the horizontal direction with respect to the lower shoe 200 by the maximum clearance corresponding to the difference therebetween. Initially, if the center of the upper shoe wall surface 450 and the center of the lower shoe wall surface 250 are matched, the upper shoe 400 can move in the horizontal direction by half of the clearance with respect to the lower shoe 200.

(Upper washer)
The upper washer 50 includes an upper washer spherical surface 51 that is a spherical surface protruding upward (the same as the convex spherical surface), an upper washer through hole 52 that passes through the north pole of the upper washer spherical surface 51, and an upper washer that is perpendicular to the upper washer through hole 52. And a flat surface 53. At this time, the shoe connecting bolt 80 can pass through the upper washer through hole 52.
Further, a seal ring 54 that surrounds the upper washer 50 and is clamped by the upper surface of the upper shoe bottom plate 410 and the lower surface of the upper washer presser fitting 610 is disposed. Accordingly, foreign matter (dust or moisture) is caused on the sliding portion between the upper washer spherical surface 51 and the upper washer holding spherical surface 611 and on the contact portion (which can slide) between the upper washer flat surface 53 and the upper surface of the upper shoe bottom plate 41. Etc.) are prevented from entering. Therefore, it is possible to delay the aging of the sliding portion, and thus the maintainability of the track girder support structure 2 is improved. It should be noted that the means for replacing the seal ring 54 may prevent foreign matter from entering the sliding portion, and the installation of the seal ring 54 may be omitted depending on the environment of the installation position.

(Upper washer retainer)
The upper washer holding fitting 610 includes an upper washer holding spherical surface 611 that is a spherical surface that is recessed upward (same as a concave spherical surface), an upper washer holding through hole 612 that passes through the north pole of the upper washer holding spherical surface 611, and an upper washer holding through hole. And an upper washer presser upper surface 613 perpendicular to 612. At this time, the upper washer presser fitting 610 is inserted into the shoe connecting bolt 80 penetrating the upper shoe connecting hole 420.
The radius of curvature of the upper nut spherical surface 61 that is a concave spherical surface is substantially the same as the radius of curvature of the upper washer spherical surface 51 that is a convex spherical surface (more precisely, the former is slightly larger than the latter). Are received by the upper nut spherical surface 61, and both are slidably contacted in a substantially annular shape having a predetermined width. That is, when the upper washer spherical surface 51 slides on the upper nut spherical surface 61, the upper washer flat surface 53 tilts (tilts) in a predetermined direction.

(Upper connection nut, lower connection nut)
The upper connection nut 620 is screwed into a male screw (not shown) formed at the upper end portion of the shoe connection bolt 80.
The lower connection nut 630 is screwed into a male screw (not shown) formed at the lower end portion of the shoe connection bolt 80.
In FIG. 7, the lower connection nut 630 penetrates into the lower shoe counterbore 241 and a part of the lower connection nut 630 protrudes from the lower surface of the lower shoe bottom plate 210. However, the present invention is not limited to this, and the lower connection nut The lower shoe nut 630 is deepened by deepening the lower shoe washer 241 so that the 630 does not protrude from the lower surface of the lower shoe bottom plate 210 (the lower shoe bottom plate 210 becomes thicker), or the height of the lower shoe fixing lower washer 221 is increased. All (total height) may protrude from the lower surface of the lower shoe bottom plate 210. Moreover, you may make it the combination of a headed bolt and a nut.

(Movement restraint means)
The movement restraining means 90 is installed between the restraining rod 130 and the lower shoe 200, and disables relative movement in the horizontal direction between them.
The lower shoe restraining hole 230 has a rectangular shape in plan view, and has a pair of inner side surfaces 231a and 231b parallel to the beam axis direction X and a pair of inner side surfaces 231c and 231d parallel to the beam width direction Y. ing.
The restraining rod 130 is a quadrangular prism, and has a pair of outer surfaces 130a and 130b parallel to the beam axis direction X and a pair of outer surfaces 130c and 130d parallel to the beam width direction Y.
The movement restraining means 90 is placed between the outer side faces 130a, 130b, 130c, 130d of the restraining rod 130 and the inner side faces 231a, 231b, 231c, 231d of the lower shoe restraining hole 230, respectively. , 90c, and 90d.

Since the movement restraining means 90a, 90b, 90c, and 90d are all the same mechanism, the movement restraining means 90a will be described.
The movement restraining means 90a includes a rod taper washer 91a whose one side abuts against the outer surface 130a of the restraining rod 130, a lower shoe taper washer 92a whose one side abuts against the inner side 231a of the lower shoe restraining hole 230, and a rod taper washer 91a. And an adjustment plate 93a slidably in surface contact with both the other side surface and the other side surface of the lower shoe taper washer 92a.
Since at least one side surface of the taper plate 93a is inclined in the vertical direction Z, by moving the adjustment plate 93a in the vertical direction Z, the outer surface 130a of the restraining rod 130 and the inner side of the lower shoe restraining hole 230 The distance from the side surface 231a varies.

Therefore, the position of the lower shoe 200 with respect to the restraining rod 130 can be determined at a predetermined position by adjusting the positions of the adjustment plates 93a, 93b, 93c, and 93d in the vertical direction Z.
Therefore, even if the positional relationship between the anchor bolt 12 and the restraining rod 130 varies or the positional relationship between the lower shoe bolt hole 220 and the lower shoe restraining hole 230 varies, the anchor bolt 12 and the restraining rod 130 are also varied. Unnecessary force does not work.

(Installation operation)
The track girder support structure 2 includes a step of installing the track girder 9 on the upper shoe 400, a step of installing the upper shoe 400 on the lower shoe 200, and a step of installing the lower shoe 200 on the foundation structure 100. doing.
First, the track girder is installed on the upper shoe top plate 44 of the upper connection nut 620.
Next, the lower washer 30 is inserted into the shoe connection bolt 80 passing through the lower shoe connection hole 240 of the lower shoe 200, and the upper connection of the lower washer 30 with the shoe connection bolt 80 passing through the upper shoe connection hole 420. The upper shoe 400 (same as the upper shoe bottom plate 410) is placed on the upper shoe 400.
Then, the upper washer 50 and the upper washer presser fitting 610 are inserted into the shoe connecting bolt 80, and the upper connecting nut 620 is screwed into a male screw (not shown) formed at the upper end portion of the shoe connecting bolt 80.

Then, the shim plate 224 and the lower shoe fixing lower washer 221 inserted in the anchor bolt 12 are placed on the upper surface of the foundation upper plate 11 of the foundation structure 100, and the lower shoe bolt hole 220 is inserted thereon. The shoe 200 is placed.
Then, the lower shoe fixing upper washer 222 is inserted into the anchor bolt 12, and the lower shoe fixing nut 223 is screwed into the male screw of the anchor bolt 12. Therefore, the lower shoe 200 is clamped by the shim plate 224, the lower shoe fixing lower washer 221 and the lower shoe fixing upper washer 222 and installed on the foundation upper plate 11.

Further, the movement restraining means 90 is installed in the lower shoe restraining hole 230. That is, the movement restraining means 90a, 90b, 90c, 90d are arranged between the inner side surfaces 231a, 231b, 231c, 231d of the lower shoe 200 and the outer side surfaces 130a, 130b, 130c, 130d of the restraining rod 130, and are tapered. The vertical positions Z of the plates 93a, 93b, 93c, 93d are adjusted. Therefore, by tightening the lower shoe fixing nut 223, the horizontal position of the lower shoe 200 with respect to the foundation structure 100 is determined.
At this time, the shoe connection bolt 80 into which the lower connection nut 630 is screwed is inserted into the lower shoe connection hole 240 of the lower shoe 200 in advance.

(Behavior due to live load)
Accordingly, as described above, a clearance is provided between the inner wall of the upper shoe wall surface 450 and the outer wall of the lower shoe wall surface 250, and the inner diameter of the lower washer through hole 32 of the lower washer 30 and the upper washer penetration of the upper washer 50. Since the inner diameter of the hole 52 is larger than the outer diameter of the shoe connecting bolt 80, the upper shoe 400 can move in the horizontal direction with respect to the lower shoe 200 (see FIG. 10A).
Further, the lower shoe spherical surface 21 (concave spherical surface) of the lower shoe 200 and the lower washer spherical surface 31 (convex spherical surface) of the lower washer 30 slide, and the inner diameter of the lower washer through-hole 32 of the lower washer 30 and the upper washer 50 are above. Since the inner diameter of the washer through hole 52 is larger than the outer diameter of the shoe connecting bolt 80, the upper shoe 400 is inclined with respect to the lower shoe 200 (see FIG. 10B).
Therefore, when the temperature of the orbital girder 9 changes, the orbital girder 9 can expand and contract. In addition, when a live load is applied, the support portion (upper shoe 400) is inclined according to the amount of deflection of the track girder 9, so that no abnormal stress is generated in the track girder 9.
Therefore, as with the track girder support structure 1 (Embodiment 1), the secular deterioration is little and the maintainability is improved, and the track girder does not roll.

  Since this invention is the above and is excellent in workability | operativity and shows | plays more effectively prevention of generation | occurrence | production of cone-shaped destruction, etc., it can utilize widely as a foundation structure of the steel column base part of various forms.

1 Bearing girder support structure (Embodiment 1)
2 Bearing girder support structure (Embodiment 2)
9 Track Girder 10 Foundation Structure 11 Foundation Upper Plate 12 Anchor Bolt 13 Regulating Rod 14 Foundation Beam 15 Foundation Washer 16 Foundation Nut 17 Foundation Box 18 Foundation Sheath Tube 19 Fixing Beam 20 Lower Shoe 21 Lower Shoe Spherical Surface 22 Lower Shoe Through Hole 23 Lower surface 24 Shim plate 30 Lower washer 31 Lower washer spherical surface 32 Lower washer through hole 33 Lower washer plane 34 Seal ring 40 Upper shoe 41 Upper shoe bottom plate 42 Upper shoe through hole 43 Upper shoe wall plate 44 Upper shoe top plate 45 Upper shoe protrusion 46 Upper shoe vertical bar 47 Upper shoe restricting hole 48 Inner surface 50 Upper washer 51 Upper washer spherical surface 52 Upper washer through hole 53 Upper washer plane 54 Seal ring 60 Upper nut 61 Upper nut spherical surface 62 Upper nut screw 63 Upper nut outer surface 70 Movement restricting means 71 Spherical bearing 72 Spherical bearing receiver 73 Restricted inner box 7 Slide plate 75 Regulated outer box 76 Outer box taper washer 77 Upper shoe taper washer 78 Adjustment plate 79 Positioning mechanism 80 Shoe coupling bolt 90 Movement restraint means 91 Rod taper washer 92 Lower shoe taper washer 93 Adjustment plate Δw Clearance 100 Substructure 130 Restraint rod 200 Lower shoe 210 Lower shoe bottom plate 220 Lower shoe bolt hole 221 Lower shoe fixing lower washer 222 Lower shoe fixing upper washer 223 Lower shoe fixing nut 224 Shim plate 230 Lower shoe restraining hole 231 Inner side surface 240 Lower shoe connection hole 241 Lower shoe mounting spot 250 Lower shoe wall surface 400 Upper shoe 410 Upper shoe bottom plate 420 Upper shoe connection hole 450 Upper shoe wall surface 610 Upper washer presser fitting 611 Upper washer retainer spherical surface 612 Upper washer retainer through hole 613 Upper washer retainer upper surface 620 Upper connection nut 630 Below Connecting nut X Girder axis direction Y Girder width direction Z Vertical direction

Claims (6)

A foundation structure comprising an anchor bolt and a regulating rod protruding upward;
A lower shoe spherical surface, which is a spherical surface depressed downward, a lower shoe through hole through which the anchor bolt can pass through the south pole of the lower shoe spherical surface, and a lower shoe plane perpendicular to the lower shoe through hole And the lower shoe
A lower washer spherical surface slidable on the lower shoe spherical surface, a lower washer through hole through which the anchor bolt can pass through the south pole of the lower washer spherical surface, and a lower washer plane perpendicular to the lower washer through hole An underlying washer;
An upper shoe bottom plate that is a flat plate, an upper shoe through hole that is formed in the upper shoe bottom plate and through which the anchor bolt can pass, an upper shoe restricting hole that is formed in the center of the upper shoe bottom plate, and an upper shoe bottom plate An upper shoe comprising: an upper shoe wall plate provided; and an upper shoe top plate fixed to the upper end of the upper shoe wall plate and parallel to the upper shoe bottom plate;
An upper washer spherical surface that slides upwardly on the upper shoe spherical surface; an upper washer through hole that passes through the north pole of the upper washer spherical surface; and an upper washer plane that is perpendicular to the upper washer through hole. A washer,
An upper nut spherical surface that slides on the upper washer spherical surface with a spherical surface that is depressed upward, an upper nut female screw that passes through the north pole of the upper nut spherical surface and is screwed to the anchor bolt, and parallel to the upper nut female screw An upper nut having an upper nut outer surface;
An orbital girder installed on the upper shoe top plate,
Have
The upper shoe inserted into the anchor bolt is placed on the lower shoe and the lower washer inserted into the anchor bolt, and the upper washer inserted into the anchor bolt is placed on the upper shoe, Further, the upper nut is screwed to the anchor bolt,
A support structure for a track girder, wherein movement restricting means is installed between a restriction rod of the foundation structure and an upper shoe restriction hole of the upper shoe. The movement restricting means is a spherical bearing that is a spherical surface protruding to the side where the restriction rod is installed, a spherical bearing receiver that slidably supports the spherical bearing, and a regulated inner box that holds the spherical bearing receiver And a non-regulated box for movably storing the regulated inner box,
A sliding plate is installed between an outer surface parallel to the girder axis of the orbiting girder of the inner regulation box and an inner surface parallel to the girder axis of the orbiting girder of the outer regulation box,
The taper plate is installed between an outer surface perpendicular to the girder axis of the track girder of the regulation outer box and an inner surface perpendicular to the girder axis of the track girder of the upper shoe regulation hole. 1. Support structure for orbital girder as described in 1.   2. A spherical washer that has a spherical surface that is recessed upward and that slides on the spherical surface of the upper washer instead of the upper nut, and a nut that is screwed onto the anchor bolt. 2. Support structure for orbital girder described in 2. A foundation structure having an anchor bolt and a restraining rod projecting upward;
A lower shoe washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
Shoe connecting bolts,
A rectangular bottom shoe bottom plate, a bottom shoe bolt hole formed in the bottom shoe bottom plate through which the anchor bolt passes, a bottom shoe restraining hole formed in the center of the bottom shoe bottom plate, and a spherical surface indented downward A lower shoe spherical surface, a lower shoe connecting hole through which the shoe connecting bolt passes through the south pole of the lower shoe spherical surface, a lower shoe bolt hole and a lower shoe connecting hole surrounding the lower shoe restraining hole. A lower shoe comprising an inner upper formed lower shoe wall; and
An upper shoe fixing lower washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
An upper shoe fixing upper washer comprising a flat lower surface, an upper surface that is a spherical surface protruding upward, and a through-hole through which the anchor bolt passes;
An upper shoe fixing nut comprising: a lower surface whose upper surface is depressed upward and sliding on the upper surface of the upper shoe fixing upper washer; and an internal thread that is screwed into the anchor bolt;
An upper shoe bottom plate that is a flat plate, an upper shoe fixing bolt hole that is formed in the upper shoe bottom plate and through which the anchor bolt can pass, an upper shoe connection hole that is formed in the upper shoe bottom plate and through which the connection bolt can pass, An upper shoe restraining hole formed at the center of the upper shoe bottom plate, an upper shoe wall plate standing on the upper shoe bottom plate, and an upper shoe fixed to the upper end of the upper shoe wall plate and parallel to the upper shoe bottom plate An upper shoe comprising a top plate;
A lower washer spherical surface that slides downwardly on the lower shoe spherical surface of the lower shoe, a lower washer through hole that passes through the south pole of the lower washer spherical surface, and a lower washer plane that is perpendicular to the lower washer through hole, A lower washer comprising:
An upper washer spherical surface protruding upward, an upper washer through-hole through which the connecting bolt passes through the south pole of the upper washer spherical surface, and an upper washer plane perpendicular to the upper washer through-hole. A washer,
An upper washer holding spherical surface that slides on the upper washer spherical surface with a spherical surface that is depressed upward, an upper washer holding through hole that passes through the north pole of the upper washer holding spherical surface and through which the connecting bolt passes, and the upper washer holding through hole An upper washer retainer metal surface that is perpendicular to the upper washer retainer,
A lower connection nut and an upper connection nut screwed into the shoe connection bolt;
Have
The lower shoe inserted into the anchor bolt is placed on the lower shoe fixed lower washer inserted into the anchor bolt, and the lower shoe fixed upper washer inserted into the anchor bolt is placed on the lower shoe And the upper fixing nut is screwed to the anchor bolt, and a movement restraining step is installed between the restraining rod of the foundation structure and the lower shoe restraining hole of the lower shoe,
The lower washer through-hole is inserted into the connecting bolt passing through the lower shoe connecting hole so that the lower washer spherical surface of the lower washer is slidable on the lower shoe-spherical surface of the lower shoe,
The connecting bolt penetrating the lower washer through hole is inserted into the lower shoe connecting hole so that the lower shoe is placed on the lower washer upper surface of the lower washer,
The connecting bolt penetrating the lower shoe connecting hole is inserted into the upper washer through hole so that the upper washer is placed on the lower shoe,
The connecting bolt penetrating through the upper washer through hole is inserted into the upper washer holding through hole so that the upper washer holding metal fitting is placed on the upper washer spherical surface of the upper washer,
An orbital girder support structure, wherein an upper connection nut and a lower connection nut are screwed into both ends of the connection bolt, respectively.   The lower shoe wall surface of the lower shoe enters a range surrounded by the upper shoe wall surface of the upper shoe, and a gap is formed between the outer surface of the lower shoe wall surface and the inner surface of the upper shoe wall surface. The structure for supporting a track girder according to claim 4,   6. The track girder support according to claim 4 or 5, wherein the movement restraining means comprises a taper plate disposed between an outer surface of the restraint lot of the substructure and an inner surface of the lower shoe restraining hole. Construction.

Images