JP2001131921A - Bridge pier reinforcing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge pier reinforcing structure ensuring prevention of buckling deformation with efficient construction while maintaining a passage space for maintenance and inspection. SOLUTION: Supporting plates 11 are arranged between adjacent ribs 102 on the same inner wall face of a bridge pier body 101, keep plates 12 directed to the longitudinal direction are arranged between the vertically adjacent supporting plates 11 along the horizontal direction, reinforcing ribs 13 are mounted on the backs of the keep plates 12, and a relatively light concrete block 15 such as an air mortar is provided on the supporting plates 11 between the ribs 102.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pier reinforcement structure.

[0002]

2. Description of the Related Art FIG. 29 shows a horizontal cross section of an example of a pier supporting a bridge. As shown in FIG. 29, a plurality of ribs 102 are attached to each inner wall surface of a pier main body 101 having a hollow cylindrical shape inside and along the longitudinal direction (vertical direction) of the pier main body 101. The ribs 102 increase the rigidity of the pier body 101 against external force in the short direction (horizontal direction).

[0003] However, in the above-mentioned pier, when an external force is applied from various directions including the longitudinal direction due to an earthquake or the like,
As shown in FIG. 30A, the wall surface of the pier main body 101 is deformed so as to be curved, or as shown in FIG.
Since there is a possibility of deformation in the form of waving, various types of reinforcement work as described below are performed.

(1) Concrete Filling As shown in FIG. 31, concrete is poured into the pier body 101 and solidified to form the pier body 10.
1 is filled with concrete 111.

(2) Extension of ribs As shown in FIG.
02 along the longitudinal direction of the pier body 101
21 is added.

(3) Rib Reinforcement As shown in FIG.
By attaching 1, the rigidity of the rib 102 is increased.

[0007]

However, the above-described pier reinforcement structure has the following problems.

(1) Filling Concrete Since the inside of the pier body 101 is filled with the concrete 111, a passage space for maintenance and inspection cannot be secured inside the pier body 101.

(2) Extension of ribs In order to extend the ribs 121 on the inner wall surface of the pier body 101,
Since fillet welding must be performed over the entire length of the pier body 101 in the longitudinal direction, it takes a lot of time and workability is poor.

(3) Reinforcement of ribs
, The buckling deformation of the pier body 101 as described above cannot be directly prevented, and it is difficult to obtain a sufficiently satisfactory prevention effect.

In view of the above, the present invention provides a bridge pier reinforcement structure capable of efficiently constructing and reliably preventing buckling deformation while securing a passage space for maintenance and inspection. The purpose was.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a pier reinforcement structure according to the present invention comprises a hollow pier main body, and a plurality of protrusions spaced horizontally across an inner wall surface of the pier main body. And a reinforcing structure for a bridge pier provided with ribs extending longitudinally along the vertical direction, the reinforcing structure being provided between adjacent ribs and having high rigidity in a direction connecting the ribs. A member is provided.

[0013] In the above pier reinforcement structure, a retaining plate for retaining the reinforcement member is provided between the ribs.

In the above-described reinforcing structure for a pier, a reinforcing rib is projected from the holding plate.

In the above pier reinforcement structure, the retaining plate and the rib are connected to each other via a bolt.

In the above-described pier reinforcement structure, the reinforcing member and the pier main body are connected via a connection stud.

In the above-described pier reinforcement structure, the reinforcement member is a concrete block.

In the above-described reinforcing structure for a pier, the reinforcing member is a reinforcing plate bent so as to meander along the longitudinal direction of the rib.

In the above pier reinforcement structure, reinforced concrete is provided in a space formed between the inner wall surface of the pier main body and the reinforcing plate, and at least one of the pier main body or the rib and the reinforced concrete are provided. Are connected via a connection stud.

In the above-described reinforcing structure for a pier, the reinforcing member is a reinforcing plate provided with reinforcing ribs or reinforcing studs.

In the above-described pier reinforcement structure, a connecting plate is attached to the reinforcing rib or the reinforcing stud, and the connecting plate and the pier body are connected via a connecting stud.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the pier reinforcement structure according to the present invention will be described below, but the present invention is not limited to these embodiments.

[First Embodiment] A first embodiment of a pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic view showing a reinforcing structure of a pier, FIG. 2 is a horizontal sectional view of the pier, and FIG. 3 is a III-II of FIG.
FIG. 4 is an enlarged view of an arrow IV section of FIG.

As shown in FIGS. 1 to 4, the longitudinal direction (longitudinal direction) of the pier main body 101 is oriented on the four inner wall surfaces of the hollow pier main body 101 having a hollow cylindrical shape. A plurality of ribs 102 are attached at predetermined intervals in the horizontal direction.

A support plate 11 as a holding plate is disposed between adjacent ribs 102 on the same inner wall surface of the pier main body 101 so as to separate the ribs 102 from each other. , The bolt 1 via the bolt 14
02 are respectively connected and fixed. The plurality of support plates 11 are attached at predetermined intervals over the vertical direction of the rib 102.

A plurality of holding plates 12, which are holding plates oriented in the longitudinal direction along the horizontal direction, are provided between the supporting plates 11 which are vertically adjacent to each other so as to bridge between the ribs 102. The pressing plates 12 are connected and fixed to the ribs 102 via bolts 14, respectively.

On the back of the holding plate 12, reinforcing ribs 1 are provided.
3 are attached in the longitudinal direction along the direction of bridging between the ribs 102, respectively.

On the support plate 11 between the ribs 102, concrete blocks 15, which are relatively lightweight reinforcing members such as air mortar, are provided, respectively.
It is pressed by the pressing plate 12 so as not to come off. The concrete block 15 has high rigidity not only in the horizontal direction but also in the vertical direction.

In such a pier reinforcement structure, after the bolt hole is formed in the rib 102, the holding plate 12, the support plate 11, and the frame plate 16 to which the reinforcement rib 13 has been attached in advance are placed below the pier main body 101. It is carried into the pier body 101 from the provided manhole for entry and exit, and the frame plate 16 is supported between the rib 102 by the support plate 11 and the holding plate 1.
2 and the supporting plate 11 and the holding plate 12
Is connected and fixed to the ribs 102 with the bolts 14, concrete 15a is poured from above into the space between the ribs 102, the support plate 11, and the frame plate 16, and after the solidification, the frame plate 16 is removed. Work can be performed efficiently (see FIG. 5).

In such a pier reinforcement structure, the concrete block 15 is provided between the ribs 102 even when an external force is applied from various directions including the longitudinal direction due to an earthquake or the like. Buckling deformation such as bending and waving can be reliably prevented, and a passage space for maintenance and inspection can be secured.

Therefore, according to such a bridge pier reinforcement structure, buckling deformation can be surely prevented by constructing efficiently while securing a passage space for maintenance and inspection.

Further, the support plate 11 and the holding plate 12
Since the concrete block 15 is held while connecting the concrete blocks 02, even if an external force causing local buckling deformation is applied to the pier body 101, the concrete block 1
5 can be prevented from detaching from between the ribs 102, and the deformation of the ribs 102 can be suppressed.

Since the reinforcing ribs 13 are attached to the holding plate 12, the rigidity of the holding plate 12 can be increased.
Separation of the concrete block 15 and deformation of the rib 102 can be more reliably prevented.

Further, since the ribs 102 and the support plate 11 and the holding plate 12 are connected and fixed by the bolts 14, the construction can be performed efficiently.

In this embodiment, the frame plate 16 is removed after the concrete block 15 is provided. However, the frame plate 16 can be used as a reinforcing member by attaching it as it is.

When the length of the support plate 11 and the holding plate 12 in the longitudinal direction is large with respect to the size of the manhole of the pier main body 101 and it is difficult to insert the manhole into the pier main body 101, it is divided into a plurality. By applying a support plate or a holding plate that is possible, the support plate or the holding plate may be divided and inserted into the inside of the pier body 101 from the manhole, and then assembled by bolting or the like and attached to the rib 102. .

The pier reinforcement structure according to the present invention can be applied not only to an existing pier, but also to a new pier before installation.

[Second Embodiment] A second embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 6 is a schematic view showing a reinforcing structure of the pier, FIG. 7 is a horizontal sectional view of the pier, and FIG. 8 is VIII-VI of FIG.
FIG. 2 is a sectional view taken along line II. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 6 to 8, a plurality of connecting studs 27 project from the inner wall surface of the pier body 101 on which the concrete block 15 is provided. It is connected to the concrete block 15 so as to be embedded.

In such a pier reinforcement structure, a bolt hole is formed in the rib 102 and the pier main body 101 is formed.
After the connecting stud 27 is joined to the inner wall surface of the pier by stud welding or the like, the holding plate 12, the supporting plate 11, and the frame plate 16 to which the reinforcing ribs 13 have been attached in advance are connected to the pier body in the same manner as in the above-described embodiment. The support plate 11 and the holding plate 12 are carried into the pier main body 101 from an access manhole provided below the base 101, and the frame plate 16 is held between the ribs 102 by the support plate 11 and the holding plate 12. 12 is connected and fixed to the ribs 102 with the bolts 14, concrete 15a is poured from above into the space between the ribs 102, the support plate 11, and the space surrounded by the frame plate 16, and the frame plate 16 is removed after solidification. The construction can be performed efficiently (see FIG. 9).

In such a pier reinforcement structure, the connection studs 27 protruding from the inner wall surface of the pier main body 101 are embedded in the concrete block 15 and connected to each other. The external force applied to the concrete block 1
5 directly. For this reason, it is possible to more reliably restrain buckling deformation such as bending or waving of the wall surface of the pier main body 101.

Therefore, according to such a bridge pier reinforcement structure, it is possible to obtain the same effect as that of the above-described embodiment, and it is possible to obtain the same effect as that of the above-described first embodiment. Also, buckling deformation can be prevented more reliably.

Third Embodiment A third embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 10 is a schematic view showing a reinforcing structure of a pier, FIG. 11 is a horizontal sectional view of the pier, and FIG.
1 is a sectional view taken along the line XII-XII of FIG. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 10 to 12, between the ribs 102, there is provided a reinforcing plate 35 which is a reinforcing member bent so as to meander along the longitudinal direction of the ribs 102. A mounting hole 35a is formed in a surface portion of the reinforcing plate 35 that contacts the inner wall surface of the pier main body 101. Mounting hole 35
a long hole 35 communicating with the mounting hole 35a.
b is formed so that the longitudinal direction thereof is oriented in the vertical direction, and the size of the elongated hole 35b in the width direction is smaller than the diameter of the mounting hole 35a.

On the other hand, the ribs 10 on the inner wall surface of the pier body 101
Between the two, a connecting stud 37 is provided at a predetermined position to be engaged with the elongated hole 35b via the mounting hole 35a of the reinforcing plate 35. That is, the mounting hole 35a of the reinforcing plate 35
Is inserted into the connection stud 37, and then the connection stud 37 is
So that the reinforcing plate 35 is positioned on the side of the slot 35b.
Is slid downward, so that the pier body 10
The reinforcing plate 35 can be connected via the connecting stud 37 between the ribs 102 on one inner wall surface.

In such a pier reinforcement structure, a bolt hole is formed in the rib 102 and the connecting stud 37 is provided at a predetermined position on the inner wall surface of the pier main body 101 in the same manner as in the above-described embodiment. After joining by welding or the like, the holding plate 12, the support plate 11, and the reinforcing plate 35, to which the reinforcing ribs 13 are attached in advance, are carried into the pier main body 101 from an access manhole provided below the pier main body 101. Then, as described above, the reinforcing plate 35 is hooked and attached to the connection stud 37, and the supporting plate 11 and the pressing plate 12 are bolted so that the reinforcing plate 35 is held by the supporting plate 11 and the pressing plate 12.
By connecting and fixing to the rib 102 at 4, the construction can be performed efficiently.

In such a pier reinforcement structure, an external force applied to the pier body 101 from various directions due to an earthquake or the like is directly transmitted from the connection stud 27 to the reinforcement plate 35 provided between the ribs 102, so that the pier body is Buckling deformation such as curvature or waving of the wall surface of 101 can be more reliably restrained.

Therefore, according to such a pier reinforcement structure, the same effect as in the above-described embodiment can be obtained.

[Fourth Embodiment] A fourth embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 13 is a schematic view showing a pier reinforcement structure, FIG. 14 is a horizontal sectional view of the pier, and FIG.
4 is a sectional view taken along the line XV-XV of FIG. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 13 to 15, the space formed between the reinforcing plate 35, the inner wall surface of the pier body 101, and the rib 102 is filled with reinforcing concrete 45.
Connecting studs 27 are protruded from the inner wall surface of the pier body 101 and the surface of the ribs 102 forming the space, and the connecting studs 27 are embedded in the reinforced concrete 45 so as to be reinforced. It is connected to concrete 45. Further, the reinforcing plate 35 is formed with a concrete inflow port 35c into which the concrete flows, and an air outflow port 35d through which the air in the space flows out.

In such a pier reinforcement structure, a bolt hole is formed in the rib 102 and the pier main body 101 is formed.
Connecting studs 2 on the inner wall surface of the
After the joints 7, 37 are joined by stud welding or the like, the holding plate 12, the support plate 11, and the reinforcing plate 35 to which the reinforcing ribs 13 are attached in advance are moved from the manhole for access provided below the pier main body 101 to the pier main body. The supporting plate 11 and the pressing plate 12 are ribbed with bolts 14 so that the reinforcing plate 35 is hooked and attached to the connection stud 37 and the reinforcing plate 35 is held by the supporting plate 11 and the pressing plate 12. After connecting and fixing to 102,
By pouring concrete into the concrete inflow port 35c of the reinforcing plate 35 and solidifying it to form the reinforced concrete 45, efficient construction can be performed.

In such a pier reinforcement structure, a reinforced concrete 45 is provided in the space,
Since the connection studs 27 projecting from the inner wall surface of the pier body 101 and the ribs 102 are embedded in and connected to the reinforcing concrete 45, external forces applied to the pier body 101 from various directions due to an earthquake or the like are reinforced from the connection studs 27. It is transmitted directly to the inside of the concrete 45 and the reinforcing plate 35. For this reason, the buckling deformation such as the curvature or waving of the wall surface of the pier main body 101 can be more reliably restrained.

Therefore, according to such a bridge pier reinforcement structure, it is possible to obtain the same effect as that of the above-described embodiment, and it is possible to obtain the same effect as that of the above-described third embodiment. Also, buckling deformation can be prevented more reliably.

In the present embodiment, the reinforced concrete 45 is connected to the pier body 101 and the ribs 102 via the connecting studs 27. However, if sufficient rigidity can be obtained, the reinforced concrete 45 and the reinforced concrete 45 are connected to each other. Only one of the pier body 101 or the rib 102 is connected to the stud 27
May be connected via a.

[Fifth Embodiment] A fifth embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 16 is a schematic diagram showing a pier reinforcement structure, FIG. 17 is a horizontal sectional view of the pier, and FIG.
7 is a sectional view taken along the line XVIII-XVIII, FIG. 19 is a perspective view of a main part, and FIG. 20 is a sectional view taken along the line XX-XX of FIG. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 16 to 20, the pressing plate 12 is integrally attached to the back surface of the reinforcing plate 55. By attaching the pressing plate 12 to the rib 102 with the bolt 14, the reinforcing plate 55 is provided. 55 can be arranged between the ribs 102. On the other hand, the reinforcing plate 5
A reinforcement rib 58 is provided in a lattice shape on the front surface of 5.

In this embodiment, a reinforcing member is constituted by the reinforcing plate 55, the reinforcing rib 58, and the like.

In such a pier reinforcement structure, a bolt hole is formed in the rib 102, and the holding plate 12 to which the reinforcement rib 13 is attached and the reinforcement plate 55 to which the reinforcement rib 58 is attached in advance are placed below the pier main body 101. The pier body is carried into the pier main body 101 from the provided manhole for entry and exit, and the reinforcing plate 55 is positioned between the ribs 102, and the holding plate 12 is connected and fixed to the ribs 102 with bolts 14, thereby efficiently constructing the pier. can do.

In such a bridge pier reinforcement structure, even if an external force is applied from various directions due to an earthquake or the like, the reinforcement rib 58 is not used.
Is provided between the ribs 102 so that buckling deformation such as bending or waving of the wall surface of the pier body 101 can be reliably prevented, and a passage for maintenance and inspection is provided. Space can be secured.

Therefore, according to such a bridge pier reinforcement structure, the same effect as in the above-described embodiment can be obtained.

[Sixth Embodiment] A sixth embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 21 is a perspective view of a main member, and FIG.
FIG. 2 is a partially extracted vertical cross-sectional view showing a reinforcing structure of a pier. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 21 and 22, a plurality of reinforcing studs 68 are provided upright on the front surface of the reinforcing plate 55. That is, in this embodiment, a reinforcing stud 68 is used in place of the reinforcing rib 58 of the fifth embodiment described above. In this embodiment, a reinforcing member is constituted by such a reinforcing plate 55, a reinforcing stud 68, and the like.

Therefore, according to such a bridge pier reinforcement structure, the same effect as that of the fifth embodiment can be obtained.

[Seventh Embodiment] A seventh embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 23 is a perspective view of a main member, and FIG.
Is a partially extracted vertical sectional view showing a reinforcing structure of a pier, FIG.
FIG. 25 is an enlarged view of an arrow XXV portion in FIG. 24. However,
The same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and the description thereof is omitted.

As shown in FIGS.
On the upper side, the connecting plate 79 is covered so as to cover the reinforcing rib 58.
Is attached. In other words, the reinforcing rib 58
Is attached to these plates 55 and 79 so as to be sandwiched between the reinforcing plate 55 and the connecting plate 79. Connecting plate 7
9 has a plurality of mounting holes 79a and a plurality of elongated holes 79b. On the other hand, between the ribs 102 on the inner wall surface of the pier main body 101, a connecting stud 77 which is engaged with the elongated hole 79b via the mounting hole 79a of the connecting plate 79 is protruded at a predetermined position. That is, the mounting hole 79a of the connecting plate 79
Into the connecting stud 77,
So that the connecting plate 79 is positioned on the side of the elongated hole 79b.
Is slid downward, so that the pier body 10
The connecting plate 79 can be connected between the ribs 102 on the inner wall of the first unit via the connecting stud 77.

In such a bridge pier reinforcement structure, a bolt hole is formed in the rib 102, and the holding plate 12 to which the reinforcing rib 13 is attached and the reinforcing plate 55 to which the reinforcing rib 58 to which the connecting plate 79 is attached are attached in advance. Pier body 1
01, is carried into the pier main body 101 from the manhole for access provided below, and the connecting plate 79 is hooked and attached to the connecting stud 77 as described above, and the holding plate 12 is attached to the rib 102 with the bolt 14 as described above. By connecting and fixing, efficient construction can be achieved.

In such a pier reinforcement structure, an external force applied to the pier main body 101 from various directions due to an earthquake or the like causes the lattice-shaped reinforcement rib 58 to be attached and the rib 102 to be attached.
Since the power is directly transmitted from the connection stud 77 and the connection plate 79 to the reinforcing plate 55 provided therebetween, buckling deformation such as bending or waving of the wall surface of the pier main body 101 can be more reliably restrained.

Therefore, according to such a reinforcing structure for a pier, it is possible to obtain the same effect as that of the above-described embodiment, and it is possible to obtain the same effect as that of the above-described fifth embodiment. Also, buckling deformation can be prevented more reliably.

[Eighth Embodiment] The eighth embodiment of the pier reinforcement structure according to the present invention will be described with reference to FIGS. FIG. 26 is a perspective view of a main part, and FIG.
FIG. 28 is a partially extracted vertical sectional view showing a reinforcing structure of a pier, FIG.
FIG. 28 is an enlarged enlarged view of an arrow XXVIII portion in FIG. 27. However, the same members as those in the above-described embodiment are denoted by the same reference numerals as those used in the description of the above-described embodiment, and description thereof will be omitted.

As shown in FIGS. 26 to 28, a connecting plate 79 is mounted on the reinforcing stud 68. That is, in the present embodiment, a reinforcing stud 68 is used in place of the reinforcing rib 58 of the seventh embodiment described above.

Therefore, according to such a bridge pier reinforcement structure, the same effect as in the case of the seventh embodiment can be obtained.

[0072]

The pier reinforcement structure according to the present invention is provided with a plurality of pier main bodies having a hollow inside and a plurality of protruding parts provided on the inner wall surface of the pier main bodies at intervals in the horizontal direction, and oriented in the longitudinal direction along the vertical direction. A reinforcing structure for a pier having ribs, the reinforcing member being provided between the adjacent ribs and having high rigidity in a direction connecting the ribs,
While securing a passage space for maintenance and inspection, buckling deformation can be reliably prevented by performing the work efficiently.

Further, since the holding plate for holding the reinforcing member is provided between the ribs, even if an external force causing local buckling deformation is applied to the pier body, the reinforcing member separates from the space between the ribs. Not only can be prevented,
The deformation of the rib can be suppressed.

Also, since the reinforcing ribs are projected from the holding plate, the rigidity of the holding plate can be increased, and the detachment of the reinforcing member and the deformation of the ribs can be more reliably prevented.

Further, since the holding plate and the rib are connected via the bolts, the work can be performed efficiently.

Further, if the reinforcing member and the pier body are connected via a connecting stud, an external force applied to the pier body from various directions due to an earthquake or the like is transmitted directly from the connecting stud to the reinforcing member. Therefore, buckling deformation such as bending or waving of the wall surface of the pier body can be more reliably restrained.

Further, when the reinforcing member is a concrete block, the above-described effects can be reliably obtained.

Further, when the reinforcing member is a reinforcing plate bent so as to meander along the longitudinal direction of the rib,
The above-described effects can be reliably obtained.

Further, reinforced concrete is provided in a space formed between the inner wall surface of the pier main body and the reinforcing plate, and at least one of the pier main body or the rib and the reinforced concrete are connected via a connecting stud. If connected, external forces applied to the pier body from various directions due to an earthquake or the like will be transmitted directly from the connecting studs to the inside of the reinforced concrete and to the reinforcing plate. Flexural deformation can be more reliably restrained.

Further, when the reinforcing member is a reinforcing plate provided with a reinforcing rib or a reinforcing stud, the above-described effects can be reliably obtained.

If a connecting plate is attached to the reinforcing rib or the reinforcing stud, and the connecting plate and the pier body are connected via the connecting stud, the connecting plate is joined to the pier body from various directions due to an earthquake or the like. Since external force is transmitted directly from the connection stud and the connection plate to the reinforcement plate provided between the ribs with the reinforcement ribs or the reinforcement studs attached, buckling deformation such as bending or waving of the wall surface of the pier body is further increased. It can be reliably restrained.

[Brief description of the drawings]

FIG. 1 is a schematic view of a first embodiment of a pier reinforcement structure according to the present invention.

FIG. 2 is a horizontal sectional view of a first embodiment of a pier reinforcement structure according to the present invention.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is an enlarged enlarged view of an arrow IV part in FIG. 2;

FIG. 5 is an explanatory view of a construction method of a first embodiment of a pier reinforcement structure according to the present invention.

FIG. 6 is a schematic view of a second embodiment of a pier reinforcement structure according to the present invention.

FIG. 7 is a horizontal sectional view of a second embodiment of the pier reinforcement structure according to the present invention;

8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 is an explanatory view of a construction method according to a second embodiment of the pier reinforcement structure of the present invention.

FIG. 10 is a schematic view of a third embodiment of a pier reinforcement structure according to the present invention.

FIG. 11 is a horizontal sectional view of a third embodiment of the pier reinforcement structure according to the present invention.

12 is a sectional view taken along the line XII-XII in FIG. 11;

FIG. 13 is a schematic view of a fourth embodiment of a pier reinforcement structure according to the present invention.

FIG. 14 is a horizontal sectional view of a fourth embodiment of the pier reinforcement structure according to the present invention.

FIG. 15 is a sectional view taken along the line XV-XV in FIG. 14;

FIG. 16 is a schematic view of a fifth embodiment of a pier reinforcement structure according to the present invention.

FIG. 17 is a horizontal sectional view of a fifth embodiment of the pier reinforcement structure according to the present invention.

18 is a sectional view taken along line XVIII-XVIII in FIG.

FIG. 19 is a perspective view of a main part member of a fifth embodiment of a pier reinforcement structure according to the present invention.

FIG. 20 is a sectional view taken along line XX-XX in FIG. 18;

FIG. 21 is a perspective view of a main part member of a sixth embodiment of a pier reinforcement structure according to the present invention.

FIG. 22 is a partially extracted longitudinal sectional view of a sixth embodiment of the pier reinforcement structure according to the present invention.

FIG. 23 is a perspective view of a main part member of a seventh embodiment of the pier reinforcement structure according to the present invention.

FIG. 24 is a partially extracted longitudinal sectional view of the seventh embodiment of the pier reinforcement structure according to the present invention.

FIG. 25 is an enlarged enlarged view of an arrow XXV part in FIG. 24;

FIG. 26 is a perspective view of a main part of an eighth embodiment of a pier reinforcement structure according to the present invention.

FIG. 27 is a partially extracted longitudinal sectional view of the eighth embodiment of the pier reinforcement structure according to the present invention.

FIG. 28 is an enlarged enlarged view of an arrow XXVIII portion in FIG. 27;

FIG. 29 is a schematic view of a pier.

FIG. 30 is an explanatory diagram of a state of a pier when an external force is applied due to an earthquake or the like.

FIG. 31 is a schematic view of a first example of a conventional reinforcing structure of a pier.

FIG. 32 is a schematic view of a second example of a conventional reinforcing structure for a pier.

FIG. 33 is a schematic view of a third example of a conventional reinforcing structure for a pier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Support plate 12 Pressing plate 13 Reinforcement rib 14 Bolt 15 Concrete block 15a Concrete 16 Frame plate 27 Connection stud 35 Reinforcement plate 35a Mounting hole 35b Slot 35c Concrete inflow 35d Air outflow 37 Connection stud 45 Reinforcement concrete 55 Reinforcement plate 58 Reinforcement Rib 68 Reinforcement stud 77 Connection stud 79 Connection plate 79a Mounting hole 79b Long hole 101 Bridge pier body 102 Rib

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ichiro Masuda 4-6-22 Kanonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries, Ltd. Hiroshima Works F-term (reference) in Mitsubishi Heavy Industries, Ltd. Hiroshima Works 2D059 AA03 GG01 GG40 GG55

Claims (10)

[Claims] 1. A bridge pier reinforcement structure comprising: an internally hollow pier main body; and a plurality of ribs protrudingly provided on an inner wall surface of the pier main body at intervals in a horizontal direction and extending longitudinally along a vertical direction. A reinforcing structure for a pier, comprising a reinforcing member provided between adjacent ribs and having high rigidity in a direction connecting the ribs. 2. The pier reinforcement structure according to claim 1, wherein a holding plate for holding the reinforcing member is provided between the ribs. 3. The reinforcing structure for a pier according to claim 2, wherein a reinforcing rib is protruded from the holding plate. 4. The pier reinforcement structure according to claim 2, wherein the holding plate and the rib are connected via a bolt. 5. The pier reinforcement structure according to claim 2, wherein the reinforcement member and the pier main body are connected via a connection stud. 6. The pier reinforcement structure according to claim 1, wherein the reinforcement member is a concrete block. 7. The pier reinforcement structure according to claim 1, wherein the reinforcement member is a reinforcement plate bent so as to meander along the longitudinal direction of the rib. 8. The reinforced concrete according to claim 7, wherein reinforced concrete is provided in a space formed between an inner wall surface of the pier main body and the reinforcing plate, and at least one of the pier main body or the rib and the reinforced concrete are provided. Piers are connected via connecting studs. 9. The pier reinforcement structure according to claim 1, wherein the reinforcement member is a reinforcement plate provided with a reinforcement rib or a reinforcement stud. 10. The pier reinforcement according to claim 9, wherein a connecting plate is attached to the reinforcing rib or the reinforcing stud, and the connecting plate and the pier body are connected via a connecting stud. Construction.