JPH07166514A - Supporting method and device after completion of bridge, etc. - Google Patents

Abstract

PURPOSE:To enable installation of a new support device even in a narrow space where an exsisting support device can not be removed, by restricting the mutual mevement of an upper wedge-form receiving member and a wedge-form driving member after completion of a bridge or the like. CONSTITUTION:An upper wedge-form pressure-receiving member 1 and a wedge-form driving member 5 are placed on the upper face of a lower structure B near an existing support of a bridge or the like in a state that the slope 2 of the upper wedge-form pressure-receiving member 1 and the slope 6 of the wedge-form driving member 5 are joined together. The upper wedge-form pressure-receiving member 1 and the wedge- form driving member 5 are relatively moved in the longitudinal direction alone the slopes 2, 6 to raise the upper face of the upper wedge-form pressure-receiving member 1 After completion of a bridge or the like, the mutual movement of the upper wedge- form receiving member 1 and the wedge-form driving member 5 are restricted by a stopper or so. In this way, the supported state after completion of construction is stably kept for a long time and the upper wedge-form pressure-receiving member 1 and the wedge-form driving member 5 are used, as they are, as a supporting device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting method and a supporting device for a bridge or the like for mounting or replacing a supporting device interposed between a structure such as a bridge and a substructure. The present invention relates to a method for supporting uplifting of a bridge or the like and a bearing device, which allows a new bearing device to be installed even when the work space is extremely narrow and the work for removing the existing bearing device is too narrow.

[0002]

2. Description of the Related Art As shown in FIG. 15, a structure (hereinafter, referred to as a structure supported by a supporting device such as a bridge or an expressway, which is now completed.
Between the bridge A) and the substructure B supporting this bridge A, the vertical load such as dead load and live load of the bridge A can be reliably transmitted to the substructure B, and the bridge A A bearing C is installed at an appropriate position so that it can be horizontally moved in anticipation of the horizontal movement length in response to expansion and contraction due to cold weather and horizontal movement due to an earthquake. These already installed bearings (hereinafter referred to as “existing bearings”) C have suffered from strain and bending stress due to load and vibration from the bridge A, rainwater, In many cases, the load absorption function deteriorates or stops due to deterioration due to factors such as corrosion due to sand dust. If this deteriorated existing bearing C is left as it is, each load acting on the bridge A cannot be absorbed by the existing bearing C, so that the bridge A itself is frequently cracked or damaged, and the bridge A is broken. There is also a risk of a catastrophe, and the need to replace the deteriorated existing bearing C with a new one is occurring one after another.

Conventionally, as a method of replacing these existing bearings C, as shown in FIG. 16, the existing bearings C near the existing bearing C are shown.
A hydraulic jack E that can be lifted while supporting the bridge A (hereinafter referred to as "Masaage") by stacking metal plate materials and steel sanders having the same height as the Installed near the bearing C, jack up until the existing bearing C and the bridge A are separated from each other (several mm to 1 cm)
Then, the bridge A is tentatively received by the temporary holder F having a stack of metal plate materials, the existing bearing C is removed in that state, and a new bearing is installed, and then the ordinary jack E is used to re-attach the bridge A. In order to replace the bearing C, the temporary support F is removed by jacking up from the temporary receiving position and the jack C is down. In addition to the above-mentioned method of replacing the bearing C, there are known methods such as a bracket method and a special pedestal method depending on the conditions under which the bearing C is attached.

In these methods, the bridge cannot be smoothly lifted up, and the temporary receiving member D for lifting the bridge is required to be installed. Therefore, the construction period is long and the repair cost is high. However, the burden on the worker is heavy and dangerous, and it has been a cause of an accident. Therefore,
The present inventor has previously invented a method of raising a bridge or the like for raising the bridge A safely and easily, and an apparatus used therefor, and is disclosed in Japanese Examined Patent Publication No. 4-54002 and US Pat. No. 4,944,492.
It has been patented as an issue and is currently being implemented. As shown in FIGS. 17 (I) to (III), this is related to the push-pull means 200 near the existing support C, and the wedge-shaped drive member 201 having inclined surfaces on the upper and lower surfaces is provided with two wedge-shaped pressure receiving members 202, Two
1 and the wedge-shaped drive member 201 is pushed in the longitudinal direction by the hydraulic jack device 204.
7 (II), the wedge-shaped driving member 201 moves upward as the lower wedge-shaped pressure receiving member 203 slides on the inclined surface, and moves upward as the wedge-shaped driving member 201 slides on the inclined surface. The wedge-shaped pressure receiving member 202 moves upward and lifts the bridge A. In order to maintain this state, in the space between the reaction force receiving plate 205 of the hydraulic jack device 204 and the wedge-shaped driving member 201, the horseshoe-shaped plate-like member is placed over the sliding rod 206 of the jack device 204 from above. A considerable number of stopper members 207 of the reaction force receiving plate 2 are inserted into the space.
05 and the wedge-shaped drive member 201 are filled, the movement of the wedge-shaped drive member 201 is once restricted, and the existing support C is provided between them.
The new bearing C '(not shown) is installed by performing repair work or replacement work, etc., and after the work is finished, the wedge-shaped drive member 201 is pulled out in the longitudinal direction as shown in FIG. The repair or replacement work was completed. Even during the repair or replacement work of the existing bearing C, various fluctuating loads are applied to the bridge A due to the traffic of the vehicle and the like, and displacement and vibration occur, but these are generated by the upper wedge-shaped pressure receiving member 202 and the bridge A. Slide plate 2 interposed between the bottom surface of the
08 and a buffer plate (not shown). With this method and device, it has become possible to perform the repair or replacement work of the existing bearing C, which was previously dangerous or impossible, safely and easily in a short time, and it is praised from various fields related to civil engineering and construction. Has been done.

[0005]

SUMMARY OF THE INVENTION It seems as if the above-mentioned lifting method and device were all solved for repairing or replacing existing bearings. However, the above-mentioned method and device have been successful in that the bridge can be lifted safely and smoothly, but the stopper member 2
After mounting 07, the hydraulic jack device 204, which is no longer necessary, must be attached, which is extremely uneconomical.

The existing bearing C at the actual work site
There are various installation places and there are unexpected situations. Among these existing bearings C, there were cases where there was no work space for repairing or replacing the existing bearings C. The reason for this is that at the beginning of the construction of the bridge A, since the existing bearing C is installed and then the bridge A is constructed above it, it is necessary to provide sufficient work space near the existing bearing C for removal, etc. It is considered that the workability was not taken into consideration. For example, in the case of the existing bearing C provided on the follow slum bridge as shown in Fig. 18, work for removing it near the existing bearing C, especially on the upper side of the substructure. There may be a case where the existing bearing C cannot be removed because there is almost no space, and due to the deterioration of the existing bearing C and the lack of buckling, etc., from the standard position of the place where the bridge A was installed to the substructure B side. After the subsidence, the gap between the substructure B and the bridge A became extremely narrow, and there were cases where there was a work space as well as a gap where the existing bearing C could not even be touched. Particularly, in concrete bridges, the problem is more serious because the gap between the lower surface of the bridge A and the upper surface of the substructure B is designed to be narrow.

That is, in the lifting method and device invented above, the lifting device having a small vertical dimension is inserted into the gap between the bridge A and the substructure B to lift the bridge A safely and smoothly. It is superior to the well-known method in that it can be supported by the existing method, but it is the well-known method in that the existing bearing C is repaired or replaced while the bridge A is being lifted while being supported. Inherent in common problems. That is, in order to repair or replace the existing bearing C, at least the work space S is required as shown by the dotted line in FIG. 19, and for repairing or replacing the existing bearing C in the above case, the existing bearing C is removed. It is physically impossible because there is no work space S. Of course,
Instead of simply replacing the existing bearing C, it is necessary to return the height of the bridge A that has sunk to the position of the place where the bridge A was installed. However, if the existing bearing C is left as it is, a catastrophic event in which the bridge A itself also collapses due to the collapse of the existing bearing C may occur, so it is unavoidable that the temporary receiving member D shown in FIG. There is no choice but to replace the existing bearing C by the conventional method used, or to replace the existing bearing C by lifting the bridge A itself with a large crane, or to newly build the bridge A with the substructure B. It was

[0008] Therefore, the Applicant further diligently researched, abandoned the idea of the conventional method of raising the bridge A to repair or remove the existing bearing C and replace it with a new bearing, and replace the existing bearing C. Even if there is no work space that can be used, it is possible to install a new bearing, so the bearing itself has the function of lifting the bridge and can introduce the reaction force, and in the state of supporting the lifting. The idea was changed so that it could withstand for a long period of time, and all the conventional problems were solved at once.

[0009]

In order to solve the above-mentioned problems, the present invention provides an upper wedge-shaped pressure receiving member having an inclined surface on the lower surface, and a wedge-shaped drive having an inclined surface for sliding on the inclined surface on the upper surface. A member and a driving means for moving the wedge-shaped driving member, the both members are slid on the inclined surfaces of each other, and the upper surface of the upper wedge-shaped pressure receiving member is raised with respect to the substructure to lift a bridge or the like. In the upper supporting method, there is provided a method of supporting a bridge or the like in which the upper wedge-shaped pressure receiving member and the wedge-shaped driving member are restricted from each other after being lifted. In this case, it is preferable that the upper wedge-shaped pressure receiving member and the wedge-shaped driving member are regulated to move relative to each other, and then the driving means is removed.

As a means for restricting the movement, one of the upper wedge-shaped pressure receiving member and the wedge-shaped drive member is provided with a protrusion toward the other member, and a guide portion having a size capable of sliding the protrusion. Is formed on the other side, and it is preferable to insert a single or a plurality of stopper members into the space formed in the guide portion by the sliding of the protrusion to fill the space. Further, the upper wedge-shaped pressure receiving member or From the side wall direction of the wedge-shaped drive member,
It is more preferable to insert a stopper member into the guide portion so that movement of both members can be restricted.

A hydraulic center hole jack is used as a driving means for moving the wedge-shaped driving member, and the tip of a sliding rod penetrating the jack is detachably connected to the wedge-shaped driving member and the other end is It is a preferred embodiment that it is linked to the driving part of the jack.

Further, a plate-shaped shoe is interposed between the upper wedge-shaped pressure receiving member and the upper shoe provided on the lower surface of the bridge or the like, and the contact surface between the upper shoe and the plate-shaped shoe slides, so that the bridge It is practical that the displacement due to vibration or expansion and contraction is absorbed in the upper layer sufficiently than the substructure.

An upper wedge-shaped pressure receiving member having an inclined surface on the lower surface thereof for practical use as a supporting device for a bridge or the like utilizing the above-mentioned uplifting support method; A wedge-shaped drive member which is formed on the upper surface and has a moving inclined surface of the same inclination angle and which can be pushed and pulled in the longitudinal direction; one member of the upper wedge-shaped pressure receiving member or the wedge-shaped drive member has both side walls and both ends. Except for forming a guide portion in the length direction by cutting out a portion including at least the ridgeline of the side wall and the inclined surface,
An engaging portion provided on the other member with a sliding protrusion having a size movable only in the longitudinal direction with respect to the guide portion; and the engaging portion formed after the sliding protrusion moves in the longitudinal direction. A support device for a bridge or the like is constituted by a stopper member fitted into the space portion of the guide portion;

Here, in the bearing device of the present invention, it is preferable that a plate-like grout such as hard rubber is placed on the upper side of the upper wedge-shaped pressure receiving member, and further formed on the upper surface of the upper wedge-shaped pressure receiving member. It is more preferable that the lower part of the plate-shaped shoe made of hard rubber or the like is fitted and mounted in the recessed portion, and the upper shoe which is attached to the lower surface of the bridge or the like is slidably mounted on the plate-shaped shoe. Here is an example. Further, it is practical that a slide layer having a small sliding friction resistance is formed on at least the upper surface of the plate-like shoe.

A base plate having a sliding surface for the wedge-shaped drive member on the upper surface thereof and a position restricting member for moving the wedge-shaped drive member only in the longitudinal direction is laid below the wedge-shaped drive member. At the same time, it is extremely practical to fix it to a substructure such as a bridge.

As a means for moving the wedge-shaped drive member, a hydraulic center hole jack is used, the tip of a sliding rod penetrating the jack is detachably connected to the wedge-shaped drive member, and the other end is jacked. It is important to actually provide an inexpensive bearing device that is linked to the drive part of the bridge and can be removed after lifting a bridge or the like.

[0017]

In the supporting method and supporting device for supporting bridges and the like of the present invention configured as described above, the inclined surfaces of the wedge-shaped driving member and the upper wedge-shaped pressure receiving member are respectively provided on the upper surface of the lower work near the existing support. The upper surface of the upper wedge-shaped pressure receiving member is raised by moving the wedge-shaped drive member and the upper wedge-shaped pressure receiving member relative to each other in the lengthwise direction along the inclined surface by placing them in a joined state, and thus the bridge etc. The upper wedge-shaped pressure receiving member and the wedge-shaped driving member are restricted from moving relative to each other after being lifted and lifted. Here, when the engaging means composed of the protrusion, the guide portion and the stopper member is adopted as the movement restricting means, the guide provided on one of the upper wedge-shaped pressure receiving member and the wedge-shaped driving member prior to lifting. Insert the protrusion provided on the other member to the portion, and position the protrusion on the longitudinal end side of the guide portion,
The upper wedge-shaped pressure receiving member is placed on top. And
After lifting a bridge or the like, the upper wedge-shaped pressure receiving member and the wedge-shaped driving member are restricted from moving relative to each other by a stopper member, so that the state of being stably lifted and supported for a long period of time is maintained, and is used as it is as a supporting device. It is possible. When the existing bearing and the bearing device of the present invention are used together, the reaction force of a bridge or the like is introduced into the bearing device of the present invention to reduce the burden on the existing bearing whose function has deteriorated. In the present invention, of course, in order to replace the existing bearing, it is also possible to support the bridge or the like in a short period of time, replace the existing bearing with a new bearing, and then lower the support to support the bridge or the like.

When the upper surface of the substructure has a large frictional resistance such as a concrete surface and the wedge-shaped driving member is hard to slide, a sliding surface is formed on the upper surface so that the wedge-shaped driving member can be moved only in the longitudinal direction. The wedge-shaped drive member can be moved by interposing a base plate having the above structure and fixing the base plate to the substructure. Then, in order to move the wedge-shaped drive member in the length direction, the tip of the sliding rod that penetrates the hydraulic center hole jack is fixed to the wedge-shaped drive member from its front side, and the other end is driven to drive the jack body. When the sliding rod is pulled in by interposing a reaction force receiving member between the jack main body and the front surface of the upper wedge-shaped pressure receiving member or the front surface of the base plate, the wedge-shaped driving member moves in the longitudinal direction together with the rod. The upper wedge-shaped pressure receiving member rises with sliding of the inclined surface of the wedge-shaped drive member and the inclined surface of the upper wedge-shaped pressure receiving member to lift up the bridge or the like. At this time, the protrusion slides on the guide portion to form a space from the initial position of the protrusion to the sliding position. Then, at the time of raising to an appropriate position, the pulling force is maintained to stop the raising of the bridge or the like, and the stopper member is embedded in the space portion, whereby the space portion is filled with the stopper member, Completely prevent the wedge drive member from returning. After this,
Even if the jack is detached from the wedge-shaped drive member and removed, the stopper member keeps the uplifting position of the bridge or the like constant even if the bridge or the like is displaced due to vibration or expansion and contraction, and remains. Is used as a bearing device by.

In addition, the lower part of the plate-like shoe made of hard rubber or the like is fitted and mounted in the recess formed in the upper surface of the upper wedge-shaped pressure receiving member, and the upper shoe made on the lower surface of the bridge or the like is attached to the plate-like shoe. When it is slidably placed, when earth and sand etc. are accumulated in the substructure during long-term use and the base plate and wedge-shaped drive member are filled with the accumulated substances, the movement between the two becomes impossible. However, it is possible to absorb the vibration and expansion and contraction that occur in the bridge or the like by the plate-shaped shoe and the upper shoe located above the upper wedge-shaped pressure receiving member that is less likely to be filled with deposits.

[0020]

The details of the present invention will be described with reference to the accompanying drawings.
1 and 2 are conceptual diagrams showing the technical idea of the present invention. In the figure, 101 is an upper wedge-shaped pressure receiving member having an inclined surface 102 on the lower surface, and 103 is a wedge-shaped drive member having an inclined surface 104 on the upper surface which slides on the inclined surface 102. Then, the wedge-shaped driving member 103 is moved in a direction along the inclined surface in a state where the inclined surfaces 102 and 104 are joined together to lift a heavy structure such as a bridge. Here, as shown in FIG. 17, a wedge-shaped drive member having these inclined surfaces is used to lift a bridge or the like, and only the wedge-shaped drive member 201 corresponding to the wedge-shaped drive member 103 of the present invention is restricted in movement. Was known. However, in the conventional case, each load on the reaction force receiving member depends on the mounting strength of the reaction force receiving member, and the amount of bending cannot be endured, and it is dangerous to use for a long period of time. In view of this, in the present invention, the upper wedge-shaped pressure receiving member 101 and the wedge-shaped driving member 103 are associated with each other and regulated in movement to integrate the two members, thereby canceling the load acting in the direction along the inclined surface. However, we have made it possible to safely regulate even long-term use. In addition, the upper surface of the upper wedge-shaped pressure receiving member 101 and the lower surface of the wedge-shaped driving member 103 can be slid, so that long-term support as well as long-term support can be realized.

Upper wedge-shaped pressure receiving member 101 and wedge-shaped driving member 1
03, a protrusion 105 is provided on one of the upper wedge-shaped pressure receiving member 101 and the wedge-shaped driving member 103 toward the other member, and the protrusion 105 is slidable on the other side. The guide portion 106 is formed. For example, in the case of FIG. 1, the upper wedge-shaped pressure receiving member 101 is provided with a projecting portion 105, and the wedge-shaped driving member 103 is provided with a guide portion 106 of such a size that the projecting portion 105 can slide.
Then, the wedge-shaped driving member 103 and the upper wedge-shaped pressure receiving member 1
By pushing or pulling one or both of 01 with a well-known hydraulic jack device or the like, the projecting portion 105 slides on the guide portion 106 as shown in FIG. This protrusion 1
By sliding 05, a space 107 is formed between the initial position of the projection 105 and the position after sliding, and the space 107 is made of metal, polymer resin, or the like. A single or a plurality of stopper members 108 formed of a material that is extremely difficult to be deformed or a material that can recover the prototype such as a shape memory alloy is inserted, and the space 107 is filled to prevent detent. Further, when the movement of the stopper members 108 is restricted as in the present invention, the compressive force against the stopper member 108 is buffered. Therefore, even a wood material subjected to anticorrosion treatment can be used as the stopper member 108 in some cases. is there.

Further, as shown in the figure, the stopper member 1
08 is an upper wedge-shaped pressure receiving member 101 or a wedge-shaped driving member 103.
By inserting the upper wedge-shaped pressure receiving member 101 and the wedge-shaped driving member 103 at least between the substructure and the bridge by inserting them from the side wall direction so as to restrict their movement, The work space S is unnecessary for the work of inserting the stopper member 108.

Next, a support device for a bridge or the like which directly uses the above method will be described with reference to the drawings. FIG. 3 is an exploded perspective view of an embodiment of the bearing device of the present invention, and FIG. 4 is a central longitudinal sectional view thereof. In the figure, 1 is an upper wedge-shaped pressure receiving member,
The upper wedge-shaped pressure receiving member 1 is made of a lightweight and hard material such as a polymer resin material or titanium, has an upper surface horizontal, and a lower surface with a gradually changing thickness in the length direction (sliding direction) and an inclined surface 2
Is a plane rectangular shape. At the center between both side walls along the length direction of the inclined surface 2, a groove portion 3 having a bottom surface parallel to the top surface and having a same thickness in a vertical cross section and opened downward is formed over the entire length. Further, on both sides of the side wall of the upper wedge-shaped pressure receiving member 1 excluding both ends near the front surface, in the illustrated example, on both sides near the thick side, sliding projections 4 each having a rectangular cross section are provided at the tip of the sliding projections 4 with respect to the inclined surface 2. It is laid down so that it becomes a lower level. The sliding protrusion 4 may be integrally formed with the upper wedge-shaped pressure receiving member 1, but as shown in the drawing, the sliding protrusion 4 is separately formed and is integrally formed with the upper wedge-shaped pressure receiving member 1 by a bolt or the like. It may be fixed to.

In the present embodiment, the material of the upper wedge-shaped pressure receiving member 1 is a laminated body of special fibers impregnated with phenol resin. This laminate is a base material made of a woven fabric of special fibers, impregnated with a resin solution obtained by stirring and reacting phenol, formaldehyde and a special additive in a reaction vessel, dried, and then cut into a predetermined size, It is a block body manufactured by stacking them and pressurizing them with a molding press. Then, after the block body is machined into a predetermined shape, the sliding surface is treated with paraffin to manufacture the upper wedge-shaped pressure receiving member 1. Here, the physical properties of the material are a specific gravity of 1.39 and a hardness of 98 HRM. The mechanical property of the material is that the compressive strength is 25.3 kg in the stacking direction (hereinafter referred to as the vertical direction).
f / mm ² and 14.9 kgf / mm ² in the direction along the woven fabric (hereinafter referred to as horizontal direction), and bending strength is 13.0 kgf / mm ² in the vertical direction and 14.3 kgf / in the horizontal direction.
mm ² , impact value in the vertical direction is 45.2 kgf · cm / c
m ² is 24.9 kgf · cm / cm ² in the horizontal direction, and the wear amount is 0.02 mm / hr (however, the pressure P = 60
kg / cm ² and sliding speed V = 1 m / s). Incidentally, these characteristic values are obtained when the temperature is 20 ° C.

Reference numeral 5 in the drawing denotes a wedge-shaped driving member, and the wedge-shaped driving member 5 is made of the same material as the upper wedge-shaped pressure receiving member 1 so that the inclined surface 2 of the upper wedge-shaped pressure receiving member 1 can slide. An inclined surface 6 having the same inclination angle to be mounted is formed on the upper surface, and the lower surface is horizontally formed in a planar rectangular shape that is movable in the length direction. Along the lengthwise direction of the inclined surface 6 of the wedge-shaped drive member 5, the groove portion 3 is substantially internally provided at the center between both side walls, and the upper edge is parallel to the lower surface and the height from the lower surface in the vertical cross section is smaller than that of the lower surface. The same projecting ridge 7 is provided so as to project upward over the entire length, and a through hole for fixing a sliding rod of a hydraulic center hole jack to be described later is provided substantially at the center of the ridge 7 in the longitudinal direction. Alternatively, a mounting hole 8 such as a screw hole is opened. Further, on both side walls of the wedge-shaped drive member 5 near the front surface excluding both ends, in the illustrated example, near the thin wall side, a portion including at least the ridgeline of the side wall and the inclined surface 6 is cut out to form a guide portion 9. Formed in the length direction. The guide portion 9 may be a bottomed groove that is not a through groove that is open vertically as shown in the figure, and the sliding protrusion 4 is inserted into the guide portion 9 and the sliding protrusion 4 is Any guide that can move in the length direction of the guide 9 can be used. As in this embodiment, the guide portion 9 is cut out including at least the ridgeline of the side wall and the inclined surface 6.
By forming the above, even if the upper wedge-shaped pressure receiving member 1 and the wedge-shaped driving member 5 are in a joined state, the positional relationship between the guide portion 9 and the sliding protrusion 4 is visually observed from the side wall direction of the wedge-shaped driving member 5. I can confirm.

The engaging portion 10 is constituted by the sliding protrusion 4 and the guide portion 9 described above, and the specific size relationship between the two is shown in FIGS. 5 and 6, and FIG. The engaging portion 1
FIG. 6 is a partial longitudinal end view of 0 viewed from the length direction, and FIG. 6 is a partial side view viewed from the side wall direction. That is, the width t of the sliding protrusion 4 is opposed to the width t of the guide portion 9 in a state where the long side wall 11 in the guide portion 9 and the inner side wall 12 of the sliding protrusion 4 are joined. It can be used if the thickness is not more than twice the width t ₁ of the short side wall 13, but it is desirable that t ≦ t ₁ in consideration of safety. On the other hand, regarding the length relationship between the sliding protrusion 4 and the guide portion 9, as shown in FIG. 6, the length L ₁ of the long side wall 11 is longer than the length L of the sliding protrusion 4. Since the sliding protrusion 4 is located inside the guide portion 9, it is naturally required, and the sliding protrusion 4 can be moved in such a relationship, but the length L ₁ of the long side wall 11 causes the protrusion 4 to move.
The allowable range of the moving distance of the protrusion 4 is determined by the length obtained by subtracting the length L of. However, this movement distance is
In consideration of the length of the upper wedge-shaped pressure receiving member 1 or the wedge-shaped driving member 5, the inclination angles of the inclined surfaces 2 and 6, and the like, the height can be appropriately set so as to ensure a required lifting height.

The sliding projection 4 and the guide portion 9 set in this way act as shown in FIGS. 1 and 2, and after the stopper member 14 is fitted into the space 15, the stopper member In order to prevent the disconnection of 14
It is desirable to cover the stopper member 14 with the cover shown as. The reason is that the stopper member 1
Even after the pulling driving force applied to the wedge-shaped driving member 5 is removed after the insertion of No. 4, the static frictional resistance between the inclined surfaces 2 and 5 is usually large, so that only a static vertical load by the bridge will result in an upper wedge shape. The pressure receiving member 1 and the wedge-shaped driving member 5 do not move relative to each other, and a horizontal load due to vibration or expansion / contraction of the bridge is applied to the guide portion 9 in a direction opposite to the moving direction of the sliding projection 4 when the sliding projection 4 is lifted. Move relative to the stopper member 14
This is because the stopper member 14 easily comes off to the side until the stopper member 14 is abutted against and the compressive load acts on the stopper member 14. It is difficult to predict that the stopper member 14 will come off to the side once the compressive load acts on the stopper member 14 by the sliding protrusion 4 naturally or artificially, but it is safe if the cover 16 is provided. Is.

Reference numeral 17 in the drawing denotes a base plate, and the base plate 1
Reference numeral 7 denotes a sliding surface 18 provided on the upper surface for sliding with the wedge-shaped driving member 5, and position regulating members 19 are provided on both sides of the sliding surface 18 so that the wedge-shaped driving member 5 can be moved only in the longitudinal direction. is there. The base plate 17 is used to reduce the frictional resistance between the wedge-shaped drive member 5 and the installation surface of the substructure. For example, a stainless steel plate having a small frictional resistance, or another metal plate or a hard resin plate is used as a base. Then, the one obtained by polishing only the sliding surface 18 or the one subjected to the same processing is used. Further, the position restricting member 19 can be achieved by fixing parallel plate members having a space substantially equal to the width of the wedge-shaped driving member 5 to the sliding surface 18 as shown in the figure. The position restricting member 19 only needs to restrict the movement of the wedge-shaped driving member 5 in the length direction, and for example, the wedge-shaped driving member 5 will be described later.
A concave groove or a convex groove may be formed in the length direction of the lower surface, and a convex groove or a concave groove fitted in the concave groove or the like may be formed on the base plate 17. Further, the base plate 17 is the wedge-shaped drive member 5
It is laid underneath and is fixed to a substructure such as a bridge by well-known fixing means such as bolts.
Considering the case where there is no work space above the fixed plate 20, as shown in FIG.
If the base plate 17 is fixed by fixing the fixing plate 20 to the side wall surface of the lower work, the base plate 17 can be fixed. Depending on the gap between the upper surface of the substructure and the lower surface of the bridge, a plate member for height adjustment may be interposed between the upper surface of the substructure and the base plate 17, or a known means such as cutting the upper surface of the substructure may be used. The position of the base plate 17 can be adjusted.

Reference numeral 21 in the drawing is a plate-like shoe which is the most important component of the bearing device, and the plate-like shoe 21 is placed on the upper side of the upper wedge-shaped pressure receiving member 1 and is made of hard rubber. Etc. As the shavings 21 which have been conventionally used as shavings, for example, a roller type shavings other than the plate-shaped shavings 21 shown in the figure may be placed, but this embodiment has the smallest installation gap. Since such a case is assumed, the plate-shaped trough 21 does not require a large height and is suitable. Further, in some cases, a plate material having a good sliding property such as a stainless steel plate or tetrafluoroethylene resin (PTFE) is interposed on the joint surface between the plate-shaped grout 21 and the upper wedge-shaped pressure receiving member 1, and the plate-shaped grout 21 itself is Sliding is also conceivable, and this embodiment will be described later.

An example of use of the bearing device of the present invention constructed as described above is shown in FIGS. First, the base plate 17 is fixed to the substructure B on the upper surface of the substructure B near the existing bearing by well-known means such as bolts. At this time, if the upper surface of the lower work B is not horizontal, the upper surface of the base plate 17 is fixed horizontally by interposing a plate material (not shown) between the base plate 17 and the lower work B. Then, the wedge-shaped drive member 5 is placed between the position regulating members 19 and 19 above the sliding surface 18 of the base plate 17. In this embodiment, since the hydraulic center hole jack is used as the moving means of the wedge-shaped driving member 5, if the one end of the sliding rod of the center hole jack is fixed to the wedge-shaped driving member 5 in advance, the mounting work is easy. Becomes Then, the upper wedge-shaped pressure receiving member 1 is placed while inserting the sliding protrusion 4 of the upper wedge-shaped pressure receiving member 1 into the guide portion 9 of the wedge-shaped driving member 5, and the inclined surfaces 2,
6 are polymerized with each other. Of course, at this time, the ridge 7 and the groove 3 are also fitted, and the upper wedge-shaped pressure receiving member 1 is restricted in movement in the width direction.
Further, the plate-shaped gear 21 is placed on the upper side of the upper wedge-shaped pressure receiving member 1. These series of operations may be performed one after another in a sequential or pre-stacked state. In this initial setting state, the plate-shaped shoe 2
Both the upper wedge-shaped pressure receiving member 1 and the wedge-shaped driving member 5 are displaced so that the height of 1 becomes the minimum, and the thin portions of the upper wedge-shaped pressure receiving member 1 and the wedge-shaped driving member 5 are superposed, and this state is shown in FIG. In this initial setting state, the upper edge of the ridge 7 and the bottom surface of the groove portion 3 are in a state in which the distance between them is narrowest or in contact with each other. However, both of them are moved with the movement of the wedge-shaped drive member 5 after that. The load does not concentrate on this part because it changes in the direction of increasing the interval.

Next, one end of the sliding rod 22 of the hydraulic center hole jack is fixed from the front surface side of the wedge-shaped drive member 5 using the mounting hole 8, and the jack main body 23 is pressed onto the front surface of the base plate 17 and the upper wedge-shaped pressure. The reaction force receiving member 24, which is brought into contact with the front surface of the member 1 or has a through hole through which the sliding rod 22 can be inserted, is made to contact instead of the jack main body 23, and the reaction force receiving member 24 and the jack main body 23 After making the sliding rod 22 penetrate the jack main body 23, the hydraulic center hole jack is mounted with a detent nut 25 or the like. This state is shown in FIG.

When the jack is driven, the sliding rod 22 is moved to the right in the drawing, and in conjunction with this, the wedge-shaped driving member 5 also slides on the sliding surface 18 of the base plate 17 and moves to the jack side. Then, the upper wedge-shaped pressure receiving member 1 starts to rise with the inclination of the inclined surface 6 of the wedge-shaped driving member 5 and the inclined surface 2 of the upper wedge-shaped pressure receiving member 1. Eventually, the upper plate-shaped shoe 21 of the upper wedge-shaped pressure receiving member 1 comes into contact with the lower surface of the bridge,
Further, the bridge and the like are lifted. At this time, the guide portion 9
When the protrusion 4 slides along the groove 4, a space 15 is formed between the initial position of the protrusion and the sliding position, and this state is shown in FIG.

Further, when the bridge or the like is lifted to an appropriate position, the jacking force is adjusted to stop the lift, and then the detent nut 25 is tightened to temporarily restrict the return of the rod 22. Alternatively, with the jack force kept constant, the space 15 in the guide portion 9 is filled with one or a plurality of stopper members 14 so that the sliding protrusion 4 is completely detented. This state is shown in FIG.

Even if the jacking force is reduced to zero after being lifted in this way, the upper wedge-shaped pressure receiving member 1 and the wedge-shaped driving member are normally driven only by the static vertical load acting on the device from the bridge or the like. The members 5 do not move relative to each other, but when a horizontal load is applied due to vibration, expansion and contraction of the bridge, or other factors, the sliding protrusion 4 tries to move in the direction opposite to the above, but the stopper member 14 causes the sliding protrusion 4 to move. Since movement is restricted and it is not possible to return, the elevated position of bridges etc. will be maintained without lowering. Further, the stopper member 14 is compressed by this load and does not come off. Finally, if the jack is cut off in relation to the wedge-shaped drive member 5 in the reverse procedure, only this device remains, and thereafter it is used as a bearing device as it is. It should be noted that the upper wedge-shaped pressure receiving member 1 or the wedge-shaped driving member 5 can be moved in the longitudinal direction even if the driving means is not the center hole jack device but other driving means such as a general hydraulic jack device. Of course, it can be used.

Next, a second embodiment of the present invention will be described with reference to FIGS.
Although the basic configuration of this embodiment is the same as that of the above-described embodiment, the same components are designated by the same reference numerals and detailed description thereof will be omitted. The characteristic of the present embodiment is that the seismic performance is improved so that it can endure long-term use as a supporting device, and the horizontal direction between the upper wedge-shaped pressure receiving member 1 and the lower surface of the bridge A where the influence of sediment is small. It is possible to move.

The upper wedge-shaped pressure receiving member 1 has a concave portion 26 formed on the upper surface with a peripheral portion left so that the lower portion of the plate-shaped shavings 21 can be fitted in the concave portion 26 without lateral displacement and the groove portion 3 A metal reinforcing member 27 is provided on the end face of the thick portion of the member including the end portion, which is in contact with the reaction force receiver 24.
Is buried. Here, the plate-like shoe 21 is a rubber pad 28 in which a reinforcing material of stainless steel is embedded in a chloroprene rubber base material that has been conventionally used as a rubber bearing of a bridge.
On the upper surface of the
The slide layer 29 made of is formed.

The wedge-shaped drive member 5 has a mounting hole 8 formed inside the protrusion 7 and penetrating from a thin portion of the member to a thick portion thereof, and a square receiving nut 30 at the end of the thick portion. Slide rod 2 in which is embedded and is inserted into the mounting hole 8 from the thin portion side.
The tip of No. 2 is attached to the receiving nut 30 by screwing. Further, on both sides of the lower surface of the wedge-shaped drive member 5, concave grooves 31, 31 are formed over the entire length in parallel with the protrusions 7.

The base plate 17 is a sliding surface 18 on the upper surface and is provided at a position corresponding to the concave grooves 31, 31.
A pair of long parallel protrusions 32, 32 fitted to 31 are fixed, and the fixed plate 20 is fixed to the lower surface on the front side with an edge left by about the plate thickness. The concave groove 31 and the convex portion 3
The reference numeral 2 is provided to prevent the wedge-shaped drive member 5 from laterally moving or twisting with respect to the base plate 17 and to enable the wedge-shaped drive member 5 to smoothly move back and forth. Further, on the rear surface side of the base plate 17, that is, on the edge opposite to the fixed plate 20, a stopper piece 33 is provided so as to project upward in order to prevent the wedge-shaped drive member 5 from falling rearward. Further, on both sides of the sliding surface 18 of the base plate 17 and toward the front side, a position regulating member 19 is provided.
Can be fixed with bolts, the bridge A is lifted up as described above, and after the stopper members 14, ... Are inserted into the guide portion 9, the position regulating members 19, 19 are fixed to the base plate 17
Since the lateral movement of the wedge-shaped drive member 5 is reliably regulated by fixing it to, and the seismic resistance is improved, the lateral displacement of the stopper members 14, ... Is also regulated. Therefore, the cover 16 as described above is unnecessary. is there. Further, adjusters 34, ... Are provided at the front and rear portions of both side edges of the base plate 17 for leveling the base plate 17.

The reaction force receiving device 24 of the present embodiment is engaged at the lower edge of the flat surface that abuts the reinforcing member 27 of the upper wedge-shaped pressure receiving member 1, and below the front end edge 36 of the base plate 17. The mating ridge 37 is formed to prevent the reaction force receiver 24 from being unexpectedly lifted. Further, after the ascent, the fixing plate 20 is attached to the corresponding portion of the base plate 17 from which the reaction force receiving member 24 has been removed so that the stopper member 38 can be attached by a bolt so as to face the stopper piece 33. A screw hole is formed at a predetermined position.

Then, as shown in FIG. 13, the base plate 1
The substructure B on which 7 is mounted is partially removed beforehand by a rock drilling machine or the like, and the level of the base plate 17 is adjusted by the adjuster 34, ...
Then, the fixing plate 20 is fixed to the side wall surface of the substructure B by using the anchor bolt 39, and then the base plate 1
Cement mortar 40 is placed on the lower surface of 7 and the base plate 17 is completely fixed to the substructure B. Further, before placing the cement mortar 40, a reinforcing reinforcing bar is attached to the existing reinforcing bar by welding, if necessary. If the distance between the substructure B and the base plate 17 is larger than about 15 mm, the cement-based graft can be injected as described above, but if the distance is smaller than that, the resin-based graft is injected.
On the other hand, on the bridge A, an upper shoe 41 of a material having high strength and good sliding property, such as a stainless steel plate having a lower surface as a sliding surface, is fixed. When fixing the upper shoe 41, after fixing the lower surface of the bridge A to the unsteady state, it is fixed by an appropriate fixing means such as an anchor bolt. Thereafter, in the same manner as described above, the wedge-shaped drive member 5, the upper wedge-shaped pressure receiving member 1 and the plate-shaped gear 2 are provided on the base plate 17.
1 is stacked, the sliding rod 22 is attached to the wedge-shaped drive member 5, and the sliding rod 22 is attached to the center hole jack (jack body 23).

When the existing bearing is broken and the bridge A sinks below the design value and the existing bearing cannot be removed, after the bridge A is lifted up to a predetermined height by this device, the stopper member 1
Attach 4 to use this device as a new bearing device.
Or, if the existing bearing is insufficient but has the function and the existing bearing cannot be removed, the bridge A
The reaction force is lifted to such an extent that the height of the bearing does not change, and the stopper member 14 is attached in the same manner as described above to use the present device as a new bearing device juxtaposed to the existing bearing to act on the existing bearing. Share the load.

FIG. 14 shows a state in which this device is used as a bearing device. In this state, the stopper member 14 is attached to the guide portion 9 to restrict the relative movement between the upper wedge-shaped pressure receiving member 1 and the wedge-shaped drive member 5, and the position restricting member 1
9 and 19 are fixed to the side portions of the stopper members 14 to prevent lateral movement of the wedge-shaped drive member 5 and at the same time prevent lateral displacement of the stopper member 14. Further, after mounting the stopper member 14, the sliding rod 22 is removed and replaced with a tension bar 42 shorter than that, one end of the tension bar 42 is screwed into the receiving nut 30, and the other end is inserted through a washer 43. The upper wedge-shaped pressure receiving member 1 and the wedge-shaped driving member 5 are completely integrated by tightening with the nut 44. Further, the stopper member 38 is attached to the fixed plate 20, and the stopper piece 3 is attached.
3, the wedge-shaped drive member 5 is prevented from moving in the front-rear direction with respect to the base plate 17 and protruding from the base plate 17. The horizontal displacement due to vibration or expansion / contraction of the bridge A is absorbed by the sliding layer 29 of the plate-shaped shoe 21 and the lower surface of the upper shoe 41 sliding. Here, the sliding surface 18 of the base plate 17 and the wedge-shaped drive member 5
The lower surface of the plate is surface-treated so that the wedge-shaped drive member 5 can be easily moved during lifting, but the friction resistance between the slide layer 29 of the plate-shaped shoe 21 and the lower surface of the upper shoe 41 is higher than that. If it is small, the wedge-shaped drive member 5 does not move with respect to the base plate 17. Therefore, the base plate 17 and the wedge-shaped drive member 5
Even if it is filled with sediment, it does not affect the function of the bearing device.

[0043]

According to the present invention as described above, a new bearing device can be installed without removing the bridge itself even if there is no working space for removing the existing bearing, and the existing bearing can be damaged. Even if the bearing height is lower than the bearing height set at the time of manufacturing the bridge, there is a remarkable effect that the height of the bridge can be restored to the original height designed at the time of manufacturing the bridge. Also, since the bearing itself lifts up the bridge and is installed as a new bearing device as it is, replacement work can be done without blocking the vehicles running on the bridge, and during the construction period these vehicles etc. Does not require regulation.
Furthermore, by using a wedge-shaped drive member having an inclined surface on one side, it does not require a height as compared with a wedge-shaped drive member having an inclined surface on both sides, and is suitable for work in a narrow gap. Depending on the size of the gap, the wedge-shaped drive member having inclined surfaces on both sides may be used.

Further, the wedge-shaped drive member, the upper wedge-shaped pressure receiving member, the base plate, the hydraulic jack, and the like of the bearing device used in the present invention are separable from each other and are not integrated like the conventional existing bearings. Can be easily assembled on-site,
The work period can be shortened because the transport work can be carried out safely and easily even at a work site at a high place. In addition, after lifting the bridge etc., the hydraulic jack (driving means) can be removed and used at other construction sites in the same way, and the expensive hydraulic jack can be reused many times, resulting in significant cost savings. Reduction can be achieved. In particular, when a hydraulic center hole jack is used, a sliding rod is passed through the jack, the tip of the jack is connected from the front side of the wedge-shaped drive member, and a detent nut is screwed on the other end to drive the jack. When the jack drive unit is operated, the wedge-shaped drive member is pulled toward the jack body side and lifted up, so the jack body does not need to be fixed at all and is easy to remove. If you don't have enough strokes,
The wedge-shaped drive member can be attracted again by restoring the drive part to the initial state and further screwing the detent nut. Therefore, the jack body can be made small and lightweight, and the handling becomes easy.

When only the wedge-shaped drive member is restricted in movement as in the conventional case, the reaction force receiving plate directly receives the return restricting force of the wedge-shaped drive member, so that the mounting force of the reaction force receiving plate is wedge-shaped. Although it was necessary to prevent the member from returning and was not suitable for long-term use, in the present invention, a stopper member is inserted into the space portion so that the upper wedge-shaped pressure-receiving member and the wedge-shaped drive member are self-contained in movement regulation. Since the reaction force receiving plate is not required, the structure is simplified, and the stopper member receives a compressive load. Therefore, if the material can withstand this load, the stopper member will not come off and It can be used.

Further, the lower part of the plate-shaped grout such as hard rubber is fitted and mounted in the recess formed on the upper surface of the upper wedge-shaped pressure receiving member, and the upper grout attached to the lower surface of the bridge or the like is attached to the plate-shaped grind. If it is slidably placed, the sediment will build up on the substructure, and even if the base plate or wedge-shaped drive member is filled with the deposit and movement between the two becomes impossible, the deposit will not be removed. The plate-shaped shoe and the upper shoe located above the upper wedge-shaped pressure receiving member, which is less likely to be buried, can absorb vibration and expansion and contraction that occur in the bridge and the like, and can be used as a bearing device for a long period of time.
Further, by providing the slide layer on at least the upper surface of the plate-shaped shoe, the sliding movement between the shoe and the upper shoe attached to the bridge or the like becomes smoother.

[Brief description of drawings]

FIG. 1 is a conceptual diagram of a lifting support method according to the present invention.

FIG. 2 is also a conceptual diagram of a supporting method.

FIG. 3 is an exploded perspective view showing a first embodiment of the bearing device according to the present invention.

FIG. 4 is a central longitudinal sectional view showing an embodiment of the bearing device.

FIG. 5 is an end view showing a guide portion of the bearing device.

FIG. 6 is a side view showing a guide portion of the bearing device.

FIG. 7 is a perspective view showing another embodiment of the base plate.

FIG. 8 is a side view showing a state in which the support device is installed between the substructure and the bridge.

FIG. 9 is a side view showing a state where a jack is mounted on the support device.

FIG. 10 is a side view showing a state in which a bridge is lifted by a support device.

FIG. 11 is a side view showing a state in which the jack is removed from the support device and the bridge is lifted and supported.

FIG. 12 is an exploded perspective view showing a second embodiment of the bearing device of the present invention.

FIG. 13 is a side view showing a state in which the support device is similarly installed between a substructure and a bridge and a jack is attached, partially broken away.

FIG. 14 is a side view showing a state in which the bridge is also lifted and supported by the support device.

FIG. 15 is a perspective view showing a usage state of an existing bearing.

FIG. 16 is an explanatory diagram showing an example of a conventional method and apparatus.

FIG. 17 is a central longitudinal cross-sectional view showing a conventional lifting support method and device, (I) showing the lifting support device installed at a predetermined position, (II) showing the lifting support, and (III) showing It shows the state of support in each case.

FIG. 18 is an explanatory diagram showing a working space state.

FIG. 19 is an explanatory diagram showing a working space state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper wedge-shaped pressure receiving member 2 Inclined surface 3 Groove part 4 Sliding protrusion 5 Wedge-shaped drive member 6 Inclined surface 7 Projection 8 Mounting hole 9 Guide part 10 Engagement part 11 Long side wall 12 Inner side wall 13 Short side wall 14 Stopper member 15 Space part 16 Cover 17 Base plate 18 Sliding surface 19 Movement restricting member 20 Fixing plate 21 Plate-like gear 22 Sliding rod 23 Jack body 24 Reaction force receiving device 25 Detent nut 26 Recessed part 27 Reinforcing member 28 Rubber pad 29 Sliding layer 30 Receiving Nut 31 Groove 32 Protrusion 33 Adjusting piece 34 Adjuster 36 End edge 37 Projecting edge 38 Stopping member 39 Anchor bolt 40 Cement mortar 41 Upper groove 42 Tension bar 43 Washer 44 Nut 101 Upper wedge-shaped pressure receiving member 102 Inclined surface 103 Wedge drive Member 104 Inclined surface 105 Projection portion 106 Guide portion 10 Space portion 108 Stopper member 200 Push-pull means 201 Wedge-shaped drive member 203 Wedge-shaped pressure receiving member 203 Wedge-shaped pressure receiving member 204 Hydraulic jack device 205 Reaction force receiving plate 206 Sliding rod 207 Stopper member 208 Sliding plate A Bridge B Substructure C Existing support S work space

Claims (12)

[Claims] 1. An upper wedge-shaped pressure receiving member having an inclined surface on a lower surface thereof, a wedge-shaped driving member having an inclined surface which slides on the inclined surface is provided on an upper surface, and a driving means for moving the wedge-shaped driving member. In the uplifting support method in which members are slid on each other and the upper surface of the upper wedge-shaped pressure receiving member is raised relative to the substructure, the upper wedge-shaped pressure receiving member is lifted after the bridge is lifted. A support method for supporting a bridge or the like, characterized in that the member and the wedge-shaped drive member are mutually restricted in movement. 2. The uplifting support method for a bridge or the like according to claim 1, wherein the upper wedge-shaped pressure receiving member and the wedge-shaped driving member are mutually restricted in movement, and then the driving means is removed. 3. As a means for restricting the movement, one of the upper wedge-shaped pressure receiving member and the wedge-shaped driving member is provided with a protrusion toward the other member, and a guide portion having a size capable of sliding the protrusion. 3. The bridge or the like according to claim 1 or 2, wherein one or more stopper members are inserted into the space formed in the guide part by the sliding of the protrusion to form the other space. Top support method. 4. A stopper member is inserted into a guide portion from a side wall direction of the upper wedge-shaped pressure receiving member or the wedge-shaped driving member,
The method for supporting uplifting of a bridge or the like according to claim 3, wherein movement of both members can be restricted. 5. A hydraulic center hole jack is used as a driving means for moving the wedge-shaped driving member, and a tip of a sliding rod penetrating the jack is detachably connected to the wedge-shaped driving member and the other end is connected. The method for supporting lift of a bridge or the like according to claim 1 or 2, which is linked to a driving portion of the jack. 6. A bridge is formed by interposing a plate-like grout between the upper wedge-shaped pressure receiving member and an upper grove provided on a lower surface of the bridge or the like, and sliding a contact surface between the upper grates and the plate-shaped grates. The method for supporting uplifting of a bridge or the like according to claim 1 or 2, wherein the displacement due to vibration or expansion and contraction of the bridge is absorbed sufficiently above the substructure. 7. An upper wedge-shaped pressure receiving member having an inclined surface formed on the lower surface and an inclined surface having the same inclination angle that slides on the inclined surface of the upper wedge-shaped pressure receiving member are formed on the upper surface, and can be pushed and pulled in the length direction. The wedge-shaped driving member and one member of the upper wedge-shaped pressure receiving member or the wedge-shaped driving member are notched at both side walls except at both ends and include at least the ridgelines of the side wall and the inclined surface, and the guide portion is formed in the longitudinal direction. And an engaging portion provided on the other member with a sliding protrusion having a size movable only in the longitudinal direction with respect to the guide portion, and after moving in the longitudinal direction of the sliding protrusion. A support device for a bridge or the like, comprising a stopper member fitted into the space of the formed guide portion, and a stopper member fitted into the space. 8. A support device for a bridge or the like according to claim 7, wherein a plate-like shoe made of hard rubber or the like is placed above the upper wedge-shaped pressure receiving member. 9. A lower part of a plate-like shoe made of hard rubber or the like is fitted and mounted in a recess formed on the upper surface of the upper wedge-shaped pressure receiving member, and an upper shoe made on a lower surface of a bridge or the like is attached to the plate-like shoe. The support device for a bridge or the like according to claim 7, wherein the support device is slidably mounted. 10. The support device for a bridge or the like according to claim 9, wherein a slide layer having a small sliding friction resistance is formed on at least an upper surface of the plate-shaped shoe. 11. A base plate provided with a sliding surface on the upper surface for the wedge-shaped drive member and having a position regulating member that allows the wedge-shaped drive member to move only in the longitudinal direction is laid below the wedge-shaped drive member. At the same time, the support device for a bridge or the like according to claim 7, which is fixed to a substructure of the bridge or the like. 12. A hydraulic center hole jack is used as a means for moving the wedge-shaped driving member, the tip of a sliding rod penetrating the jack is detachably connected to the wedge-shaped driving member, and the other end is jacked. The support device for a bridge or the like according to claim 7, wherein the support device is linked to the drive part of the bridge and is removable after the bridge or the like is lifted.