JP7085883B2 - Structure foundation maintenance method - Google Patents

Description

The present invention relates to a method for maintaining a structural foundation provided on the ground and supporting a structure.

A structural foundation is provided on the ground to support the structure.
The structure consists of multiple columns, multiple beams and slabs.
For example, a structural foundation is composed of a concrete layer, a plurality of foundation piles, and a foundation structure.
Foundation piles penetrate the concrete layer and are driven into the ground.
The foundation structure is composed of a plurality of foundation members and a plurality of beam members.
When viewed from above, a plurality of foundation members are arranged so as to be scattered in a grid pattern.
Beam members connect the foundation members.
The foundation member is fixed to the pile head of the foundation pile.
When an earthquake occurs, the horizontal force due to the acceleration of the foundation pile acting on the structure is supported through the foundation structure.

It has become clear that recent earthquakes can cause horizontal displacements that were not planned at the time of design.
When there is a large horizontal displacement, the horizontal force causes an excessive bending moment and shearing force on the foundation pile, which can cause unexpected damage to the joint between the foundation pile and the foundation structure.
Therefore, in recent years, a method of connecting the foundation pile and the foundation member has been reviewed, and a device for avoiding damage to the joint portion between the foundation pile and the foundation member has been tried.
On the other hand, when a large overturning moment acts on the structure, locking may occur in which a part of the foundation member of the foundation structure tends to be lifted.
In order to solve the above-mentioned problems, the inventor has devised a new structural foundation that is not easily damaged when an earthquake occurs due to a simple structure.

When the above-mentioned structural foundation is adopted, it is required to maintain the structural foundation so that it maintains its initial function when an earthquake of an unexpected scale occurs.

The present invention has been devised in view of the above-mentioned problems, and an object of the present invention is to provide a method for maintaining a structural foundation for maintaining the initial function of the structural foundation.

In order to achieve the above object, the maintenance method of the structural foundation that supports the structure provided on the ground and having pillars according to the present invention is to penetrate the concrete layer cast on the ground and the concrete layer. A pair of upper and lower foundation piles, which are foundation piles that are driven into the ground and expose the pile head, which is the head, from the upper surface of the concrete layer, and filler plates, which are structural members whose lower part is fixed to the pile head and whose upper part faces upward. A support mechanism having an upper flange, a lower flange, and a plug that fits the upper and lower parts to the pair of upper and lower flanges, and the upper part is the lower part of the pillar of the structure, which is arranged so as to be scattered when viewed from above. It has a foundation structure having a plurality of foundation members fixed to the foundation and a plurality of beam members extending horizontally to connect the plurality of foundation members, and the upper flange of the support mechanism is fixed to the foundation structure. A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the top of the filler plate, and a jack is engaged between the filler plate or either one of the concrete layers and the foundation member. A new step of preparing a new support mechanism, a jack-up step of lifting the foundation member, a step of removing the support mechanism from between the filler plate and the foundation member, and moving the support mechanism in the horizontal direction to the outside. A support mechanism preparation step and a support mechanism installation step of horizontally moving and installing the new support mechanism between the filler plate and the foundation member from the outside are provided.

According to the above-mentioned configuration of the present invention, the structure foundation is exposed from the upper surface of the concrete layer and the concrete layer to be driven onto the ground and the pile head which is driven into the ground through the concrete layer and is the head. A foundation pile that is a pile, a filler plate that is a structural member whose lower part is fixed to the pile head and whose upper part faces upward, and a pair of upper and lower flanges, that is, an upper flange, a lower flange, and a pair of upper and lower flanges. A support mechanism with a plug that fits into each, and a plurality of foundation members that are arranged so as to be scattered when viewed from above and the upper part is fixed to the lower part of the pillar of the structure, and a plurality of foundation members that extend horizontally to connect the plurality of foundation members. It has a foundation structure having a plurality of beam members, the upper flange of the support mechanism is fixed to the foundation structure, and the lower flange of the support mechanism is fixed to the upper part of the filler plate. .. The jack-up step lifts the foundation member by engaging a jack between the filler plate or either one of the concrete layers and the foundation member.
The support mechanism removing step removes the support mechanism from between the filler plate and the foundation member and moves the support mechanism in the horizontal direction to the outside. The new support mechanism preparation process prepares the new support mechanism. The support mechanism installation process horizontally moves and installs the new support mechanism between the filler plate and the foundation member from the outside.
As a result, the support mechanism can be replaced to maintain the initial function of the structural foundation in the event of an earthquake of greater magnitude than expected.

The maintenance method of the structural foundation according to the embodiment of the present invention will be described below. The present invention includes any of the embodiments described below, or a combination of two or more of them.

Further, in the structural foundation according to the embodiment of the present invention, the foundation structure is arranged so as to be scattered when viewed from above, the upper part is fixed to the lower part of the pillar of the structure, and the lower part has an opening facing downward. A plurality of foundation members forming a hollow space containing the head, the filler plate, and the support mechanism, and a lower surface of the foundation member which is a lower surface facing downward around the opening, and a plurality of foundation members extending horizontally to connect the plurality of foundation members. It has a plurality of beam members, and the foundation member is provided with a through hole that connects the hollow space and the outside so that the support mechanism can be carried in and out. It is removed from the foundation member and moved in the horizontal direction to be taken out from the hollow space through the through hole, and the support mechanism installation step inserts a new support mechanism from the outside into the hollow space through the through hole. It is installed by moving horizontally between the filler plate and the foundation member.
According to the configuration of the embodiment according to the present invention, the foundation structure is arranged so as to be scattered when viewed from above, the upper part is fixed to the lower part of the pillar of the structure, and the lower part has an opening facing downward, and the pile head and the said A plurality of foundation members forming a hollow space containing the filler plate and the support mechanism and a lower surface of the foundation member facing downward around the opening, and a plurality of beams extending horizontally to connect the plurality of foundation members. Has a member. The foundation member connects the hollow space to the outside and is provided with a through hole through which the support mechanism 400 can be carried in and out. The support mechanism removing step removes the support mechanism from between the filler plate and the foundation member, moves the support mechanism in the horizontal direction, and ejects the support mechanism from the hollow space to the outside through the through hole. In the support mechanism installation step, a new support mechanism is placed in the hollow space from the outside through the through hole and horizontally moved between the filler plate and the foundation member.
As a result, the support mechanism can be replaced to maintain the initial function of the structural foundation in the event of an earthquake of greater magnitude than expected.

Further, in the method for maintaining the structure foundation according to the embodiment of the present invention, the foundation member flange and the upper part thereof are the foundation member flange to which the upper flange of the support mechanism is fixed to form the ceiling portion of the hollow space. Reinforced concrete constructed using the inner wall plate-shaped member, which is a plate-shaped member forming the inner wall of the hollow space, the foundation member flange, and the inner wall plate-shaped member as a mold, which is connected to the periphery of the concrete layer and the lower portion is in contact with the concrete layer to form the inner wall of the hollow space. It has a structure, and the end portion of the barbed material of the reinforced concrete structure is fixed to the inner wall plate-like member.
According to the configuration of the embodiment according to the present invention, the foundation member is connected to the foundation member flange and the upper portion which form the ceiling portion of the hollow space in which the upper flange of the support mechanism is fixed, and the lower portion is connected around the foundation member flange. It has a reinforced concrete structure constructed by using an inner wall plate-shaped member which is a plate-shaped member that abuts on the concrete layer to form an inner wall of the hollow space, a foundation member flange, and the inner wall plate-shaped member as a mold. The end portion of the reinforcing material of the reinforced concrete structure is fixed to the inner wall plate-shaped member.

Further, in the maintenance method of the structural foundation according to the embodiment of the present invention, after the generated earthquake has converged, the deviation value in the horizontal direction between the upper flange and the lower flange of the support mechanism is checked and the deviation amount is determined. When the amount exceeds a predetermined amount, the jack-up step, the support mechanism removing step, the new support mechanism preparation step, the support mechanism installation step, and the jack removing step are executed, and the new support mechanism preparation step is described. Prepare a new support mechanism corresponding to the amount of deviation.
According to the configuration of the embodiment according to the present invention, after the generated earthquake has converged, the horizontal deviation value between the upper flange and the lower flange of the support mechanism is checked, and the deviation amount exceeds a predetermined amount. When the jack-up step, the support mechanism removal step, the new support mechanism preparation step, the support mechanism installation step, and the jack removal step are executed. The new support mechanism preparation step prepares a new support mechanism corresponding to the deviation amount.
As a result, when an earthquake of an unexpected scale occurs, the support mechanism can be replaced in response to the amount of displacement, and the initial function of the structural foundation can be maintained.

Further, the maintenance method of the structural foundation according to the embodiment of the present invention is processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step. A new support mechanism having the upper flange or the lower flange is prepared.
According to the configuration of the embodiment according to the present invention, the upper flange or the lower flange processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step can be obtained. Prepare the support mechanism to be held.
As a result, when an earthquake of an unexpected scale occurs, the support mechanism can be replaced in response to the amount of displacement, and the initial function of the structural foundation can be maintained.

Further, in the method for maintaining the structure foundation according to the embodiment of the present invention, the upper portion of the filler plate is interposed via a lower flange adapter, which is a flange-shaped member in which the lower flange of the support mechanism has a larger surface than the lower flange. In the process of removing the support mechanism, the support mechanism is integrated with the lower flange adapter, removed from between the filler plate and the foundation member, and moved horizontally to the outside to prepare the new support mechanism. The support mechanism installation process is newly prepared by preparing a new support mechanism including the lower flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the process. The support mechanism is inserted from the outside together with the new lower flange adapter and horizontally moved between the filler plate and the foundation member.
According to the configuration of the embodiment according to the present invention, the lower flange of the support mechanism is fixed to the upper part of the filler plate via a lower flange adapter which is a flange-shaped member having a surface larger than the lower flange. The support mechanism removing step removes the support mechanism from between the filler plate and the foundation member together with the lower flange adapter, and moves the support mechanism in the horizontal direction to the outside. The new support mechanism is prepared with the new support mechanism including the lower flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step. In the support mechanism installation step, the new support mechanism is inserted from the outside together with the new lower flange adapter and horizontally moved between the filler plate and the foundation member.
As a result, when an earthquake of an unexpected scale occurs, the support mechanism can be replaced in response to the displacement amount, and the initial function of the structure foundation can be maintained.

Further, in the method for maintaining the structure foundation according to the embodiment of the present invention, the upper flange of the support mechanism is fixed to the foundation member via an upper flange adapter which is a flange-shaped member having a larger surface than the upper flange. In the step of removing the support mechanism, the support mechanism is integrated with the upper flange adapter, removed from between the filler plate and the base member, and moved in the horizontal direction to the outside, and the new support mechanism preparation step is performed. The upper flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the removed support mechanism and the new support mechanism are prepared, and the support mechanism installation step is a new step. The support mechanism is inserted from the outside together with the new upper flange adapter and horizontally moved between the filler plate and the foundation member.
According to the configuration of the embodiment according to the present invention, the upper flange of the support mechanism is fixed to the basic member via an upper flange adapter which is a flange-shaped member having a larger surface than the upper flange. The support mechanism removing step removes the support mechanism from between the filler plate and the foundation member together with the upper flange adapter and moves the support mechanism in the horizontal direction to the outside. The upper flange adapter and the new support mechanism processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step are prepared. In the support mechanism installation step, the new support mechanism is inserted from the outside together with the new upper flange adapter and horizontally moved between the filler plate and the foundation member.
As a result, when an earthquake of an unexpected scale occurs, the support mechanism can be replaced in response to the displacement amount, and the initial function of the structure foundation can be maintained.
As a result, the foundation member can be manufactured integrally with the hollow space, and the work in the hollow space can be made safer.

As described above, the maintenance method of the structural foundation according to the present invention has the following effects depending on its configuration.
The foundation pile penetrates the concrete layer placed on the ground, the filler plate fits into the pile head exposed from the upper surface of the concrete layer, the lower flange is fixed to the upper part of the filler plate, and a pair of upper and lower flanges. The top and bottom of the plug are fixed to the foundation structure where the upper flange of the support mechanism is fixed to the lower part of the pillar, and a hollow space with an opening facing downward of the foundation structure encloses the filler plate and the support structure. Prepare a structural foundation in which the lower surface of the foundation member around the opening abuts on the upper surface of the concrete layer so as to be relatively movable in the horizontal direction. Remove it from between the foundation member and move it horizontally to the outside, prepare a new support mechanism, insert the new support mechanism from the outside, and move it horizontally between the filler plate and the foundation member. Since it is installed, the support mechanism can be replaced in the event of an earthquake of a larger scale than expected, and the initial function of the structural foundation can be maintained.
Further, the structural foundation is prepared, the jack is bitten to lift the foundation member, the support mechanism is removed from between the filler plate and the foundation member, and the foundation is moved in the horizontal direction from the hollow space to the through hole. A new support mechanism was prepared, and the new support mechanism was inserted from the outside and moved horizontally between the filler plate and the foundation member, so the scale exceeded expectations. The support mechanism can be replaced in the event of an earthquake to maintain the initial function of the structural foundation.
Further, the foundation structure flange to which the upper flange of the support member is fixed forms the ceiling portion of the hollow space, the inner wall plate-like member forms the inner wall of the hollow space, and the foundation member forms the foundation structure flange and the above. Since the inner wall plate-shaped member is made into a reinforced concrete structure constructed as a mold, the foundation member can be manufactured integrally with the hollow space, and the work in the hollow space can be made safer.
Further, after the generated earthquake has converged, the horizontal deviation value between the upper flange and the lower flange of the support mechanism is checked, and when the deviation amount exceeds a predetermined amount, a new deviation amount corresponding to the deviation amount is obtained. Since the support mechanism is prepared, the support mechanism can be replaced in response to the amount of displacement when an earthquake of an unexpected scale occurs, and the initial function of the structural foundation can be maintained.
Further, since a new support mechanism having the upper flange or the lower flange processed according to the amount of horizontal displacement between the upper flange and the lower flange of the removed support mechanism is prepared, it is assumed. When an earthquake of a magnitude exceeding the above occurs, the support mechanism can be replaced in response to the amount of displacement, and the initial function of the structural foundation can be maintained.
Further, the structure foundation has a structure in which the lower flange is fixed on the feeler plate via the lower flange adapter, and the support mechanism and the lower flange adapter are integrated between the filler plate and the foundation member. The lower flange adapter and the new support mechanism, which are processed according to the amount of horizontal displacement between the upper flange and the lower flange of the removed support mechanism, are prepared, and the new support mechanism and the new support mechanism are newly prepared. Since the lower flange adapter is integrated and installed by moving horizontally between the filler plate and the foundation member, the support is provided in response to the displacement amount when an earthquake of an unexpected scale occurs. The mechanism can be replaced to maintain the initial function of the structural foundation.
Further, the structure foundation has a structure in which the upper flange is fixed to the foundation member via the upper flange adapter, and the support mechanism and the upper flange adapter are integrally removed from between the filler plate and the foundation member. Then, the upper flange adapter and the new support mechanism processed according to the amount of horizontal displacement between the upper flange and the lower flange of the removed support mechanism are prepared, and the new support mechanism and the new upper are prepared. Since the flange adapter is integrated and installed by moving horizontally between the filler plate and the foundation member, the support mechanism is provided in response to the amount of displacement when an earthquake of an unexpected scale occurs. It can be replaced to maintain the initial function of the structural foundation.
As a result, it is possible to provide a maintenance method for the structural foundation to maintain the initial function of the structural foundation in the event of an earthquake of an unexpected scale.

It is a conceptual diagram of the structure foundation which concerns on embodiment of this invention. It is an operation diagram of the structure foundation which concerns on embodiment of this invention. It is a procedure diagram of the maintenance method of the structure foundation which concerns on embodiment of this invention. It is a conceptual diagram of the maintenance method of the structure foundation which concerns on embodiment of this invention. It is a structural drawing of the filler plate of the structure foundation which concerns on embodiment of this invention. It is conceptual diagram 1 of the foundation structure of the structure foundation which concerns on embodiment of this invention. 2 is a conceptual diagram of the basic structure of the structural foundation according to the embodiment of the present invention. 3 is a conceptual diagram of the basic structure of the structural foundation according to the embodiment of the present invention. It is a conceptual diagram of the foundation pile of the structural foundation which concerns on embodiment of this invention. It is a relationship diagram of the foundation pile and the filler plate of the structural foundation which concerns on embodiment of this invention. FIG. 1 is a structural diagram of a support mechanism for a structural foundation according to an embodiment of the present invention. FIG. 2 is a structural diagram of a support mechanism for a structural foundation according to an embodiment of the present invention. It is a structural drawing of the flange adapter of the support mechanism of the structure foundation which concerns on embodiment of this invention. It is a performance figure of the structure foundation which concerns on embodiment of this invention.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

The method for maintaining a structure foundation according to an embodiment of the present invention is a method for maintaining a structure foundation according to an embodiment of the present invention that supports a structure provided on the ground and having columns.
FIG. 1 shows a conceptual diagram of a structural foundation according to an embodiment of the present invention.
The structure 10 may be composed of a plurality of columns 11 and a plurality of beams (not shown).
The structure 10 may be composed of a plurality of columns 11, a plurality of beams, and a plurality of slab floors (not shown).
The lower part of the pillar 11 is fixed to the upper part of the foundation structure 500 described later.
For example, the reinforcing bar of the column 11 is connected to the reinforcing bar of the upper part of the foundation structure 500.
The beam connects the adjacent columns 11.

The structure foundation maintenance method according to the embodiment of the present invention includes a preparation step S10, a jack-up step S30, a support mechanism removing step S40, a new support mechanism preparation step S50, and a support mechanism installation step S60.
The structure foundation maintenance method according to the embodiment of the present invention comprises a preparation process S10, a check process S20, a jack-up process S30, a support mechanism removal process S40, a new support mechanism preparation process S50, and a support mechanism installation process S60. May be done.
The maintenance method of the structure foundation according to the embodiment of the present invention includes a preparation step S10, a jack-up step S30, a support mechanism removing step S40, a new support mechanism preparation step S50, a support mechanism installation step S60, and a jack removing step S70. It may be configured.
The maintenance method of the structure foundation according to the embodiment of the present invention includes a preparation process S10, a check process S20, a jack-up process S30, a support mechanism removal process S40, a new support mechanism preparation process S50, a support mechanism installation process S60, and a jack removal process. It may be configured by step S70.

The preparation step S10 is a step of preparing the structural foundation.
Hereinafter, the structural foundation according to the embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a conceptual diagram of a structural foundation according to an embodiment of the present invention. FIG. 2 is an operation diagram of a structure foundation according to an embodiment of the present invention. FIG. 5 is a structural diagram of a filler plate of a structural foundation according to an embodiment of the present invention. FIG. 6 is a conceptual diagram 1 of the basic structure of the structural foundation according to the embodiment of the present invention. FIG. 7 is a conceptual diagram 2 of the basic structure of the structural foundation according to the embodiment of the present invention. FIG. 8 is a conceptual diagram 3 of the basic structure of the structural foundation according to the embodiment of the present invention. FIG. 9 is a conceptual diagram of a foundation pile of a structural foundation according to an embodiment of the present invention. FIG. 10 is a relationship diagram of a foundation pile and a filler plate of a structural foundation according to an embodiment of the present invention. FIG. 11 is a structural diagram No. 1 of the support mechanism of the structural foundation according to the embodiment of the present invention. FIG. 12 is a structural diagram No. 2 of the support mechanism of the structural foundation according to the embodiment of the present invention. FIG. 13 is a structural diagram of a flange adapter of a support mechanism for a structural foundation according to an embodiment of the present invention. FIG. 14 is a performance diagram of a structural foundation according to an embodiment of the present invention.

The structural foundation according to the embodiment of the present invention is composed of a foundation pile 200, a filler plate 300, a support mechanism 400, and a foundation structure 500.
The structural foundation according to the embodiment of the present invention may be composed of a concrete layer 100, a foundation pile 200, a filler plate 300, a support mechanism 400, and a foundation structure 500.
The structural foundation according to the embodiment of the present invention may be composed of a concrete layer 100, a plurality of foundation piles 200, a plurality of filler plates 300, a plurality of support mechanisms 400, and a plurality of foundation structures 500.
The structural foundation according to the embodiment of the present invention may be composed of a concrete layer 100, N foundation piles 200, N filler plates 300, N support mechanisms 400, and N foundation structures 500. .. In this case, one foundation pile 200 supports one filler plate 300, one support mechanism 400, and one foundation structure 500.

The concrete layer 100 is cast on the ground 5.
For example, the concrete layer 100 is cast on the ground 5 below the ground surface 1000.
For example, the concrete layer 100 is a so-called "discarded concrete" layer placed on the ground 5.
For example, the concrete layer 100 is a layer of reinforced concrete cast on the ground.
For example, the concrete layer 100 has a thickness of about 50 mm to 100 mm.
The upper surface of the concrete layer 100 is referred to as a concrete layer upper surface S.
The upper surface S of the concrete layer forms a horizontal plane.

The foundation pile 200 is a pile that penetrates the concrete layer 100 and is driven into the ground 5 to expose the pile head 210, which is the head, from the upper surface of the concrete layer 100.
The pile body 220 of the foundation pile 200 penetrates the concrete layer 100 and is driven into the ground 5.
The outer wall of the pile body 220 may have a cylindrical shape.
The outer wall of the pile body 220 may have a polygonal shape.
In the figure used for explanation, the outer wall of the pile body 220 is shown as having a cylindrical shape.
The foundation pile 200 may be made of reinforced concrete.
The foundation pile 200 may have a hollow shape.
The foundation pile 200 may have a reinforced concrete outer wall covered with a metal circular pipe.

The filler plate 300 is a structural member whose lower portion is fixed to the pile head 210 and whose upper portion faces upward.
The filler plate 300 may be a structural member whose lower portion is fitted and fixed to the pile head 210 and whose upper portion faces upward.
The filler plate 300 may be a structural member whose lower portion is separably fitted and fixed to the pile head 210 and whose upper portion faces upward.
The filler plate 300 may be a structural member whose lower portion is bolted to and fixed to the pile head 210 and whose upper portion faces upward.
10 (A) and 10 (B) show a state in which the filler plate 300 fits the lower portion into one pile head 210 and the upper portion faces upward.
FIG. 10C shows how the filler plate 300 fits the lower portion to the two pile heads 210 and faces the upper portion upward.
The filler plate 300 may be a structural member whose lower portion is fitted to the pile head 210 and is separably fixed and whose upper portion faces upward.
The filler plate 300 may be a structural member whose lower portion is fitted to the pile head 210 without using a special tool, fixed in a separable manner, and whose upper portion faces upward.
The filler plate 300 may be a structural member whose lower portion is fitted to the pile head 210, is fixed in a separable manner without being broken, and whose upper portion is directed upward.
The filler plate 300 is composed of a plate-shaped portion 310.
The filler plate 300 may be composed of a plate-shaped portion 310 and a fastening bolt 311.
The filler plate 300 may be composed of a plate-shaped portion 310 and an annular portion 320.
The filler plate 300 may be composed of a plate-shaped portion 310 and a protrusion 330.
The filler plate 300 may be composed of a plate-shaped portion 310 and an annular portion 320.
The filler plate 300 may be composed of a plate-shaped portion 310, an annular portion 320, and a flange-shaped portion 340.
The filler plate 300 may be composed of a plate-shaped portion 310, an annular portion 320, and a protrusion 330.
The filler plate 300 may be composed of a plate-shaped portion 310, an annular portion 320, a protrusion 330, and a flange-shaped portion 340.
The filler plate 300 may be composed of a plate-shaped portion 310, a fastening bolt 311, an annular portion 320, and a protrusion 330.
The filler plate 300 may be composed of a plate-shaped portion 310, a fastening bolt 311, an annular portion 320, a protrusion 330, and a flange-shaped portion 340.

The plate-shaped portion 310 is a portion that forms a lower surface that abuts on the upper surface of the pile head 210 from above.
For example, when the pile head 210 is circular, the plate-shaped portion 310 is a disk-shaped portion.
5 (A) to 5 (F) show how the plate-shaped portion 310 abuts on the upper surface of the pile head 210 from above.

The fastening bolt 311 is a mechanical element that screw-couples the filler plate 300 to the pile head 210.
For example, the fastening bolt 311 screw-couples the plate-shaped portion 310 to the pile head 210.
For example, the fastening bolt 311 screw-couples the plate-shaped portion 310 to the hollow circular iron pipe on the outer circumference of the pile head 210.
For example, the fastening bolt 311 screw-couples the plate-shaped portion 310 to a female screw provided on a hollow circular iron pipe on the outer circumference of the pile head 210.
FIG. 5D shows how the fastening bolt 311 screw-couples the plate-shaped portion 310 to the hollow circular iron pipe on the outer circumference of the pile head 210.

The annular portion 320 connects to the outer periphery of the plate-shaped portion 310 and forms an inner peripheral surface that abuts on the outer wall of the pile head 210 from the outer periphery.
For example, when the outer wall of the pile head 210 is circular, the annular portion 320 is a circular tubular portion whose inner wall abuts on the outer wall of the pile head 210.
5 (A), (C), (D), and (F) show a state in which the annular portion 320 is connected to the outer periphery of the plate-shaped portion 310 and forms an inner peripheral surface that abuts on the outer wall of the pile head 210 from the outer periphery.

The protrusion 330 is a portion that forms an outer peripheral surface that abuts on the hollow inner wall of the pile head 210 from the inner circumference at the lower portion of the filler plate 300.
For example, the protrusion 330 is a portion that forms an outer peripheral surface that abuts on the hollow inner wall of the pile head 210 from the inner circumference at the lower portion of the plate-shaped portion 310.
5 (C), (E), and (F) show a state in which the protrusion 330 forms an outer peripheral surface that abuts on the hollow inner wall of the pile head 210 from the inner circumference at the lower part of the filler plate 300.

The brim-shaped portion 340 is a plate-shaped portion fixed to the outer wall of the annular portion 320 and extending around in a brim shape.
For example, the brim-shaped portion 340 is a plate-shaped portion fixed to the lower part of the outer wall of the annular portion 320 and extending around in a brim shape.
For example, the lower surface of the flange-shaped portion 340 may be in contact with the upper surface S of the concrete layer.
FIG. 5F shows a state in which the flange-shaped portion 340 is fixed to the outer wall of the annular portion 320, extends in the shape of a collar, and the lower surface abuts on the upper surface S of the concrete layer.

The joint when the filler plate 300 is fitted to the pile head 210 and further bolted and fixed is called a rigid joint.
A joint in which the filler plate 300 is fitted to the pile head 210 and fixed without being bolted is called a semi-rigid joint.
FIG. 14A shows a bending moment diagram when a horizontal shearing force acts on the pile head in a case where the filler plate 300 and the pile head 210 are rigidly joined.
FIG. 14B shows a bending moment diagram when a horizontal shearing force acts on the pile head in a case where the filler plate 300 and the pile head 210 are semi-rigidly joined.
FIG. 14C shows bending when a horizontal shearing force acts on the pile head in the rotational direction of the joint in a case where the filler plate 300 and the pile head 210 are pin-joined or spherically joined for comparison. The moment diagram is shown.
In the case where the filler plate 300 and the pile head 210 are rigidly joined, the maximum bending moment on which the foundation pile 200 acts is about 70% of the maximum bending moment when the foundation pile 200 is pin-joined.
In the case where the filler plate 300 and the pile head 210 are semi-rigidly joined, the maximum bending moment on which the foundation pile 200 acts is about 30 to 40% of the maximum bending moment when the pile head is pin-joined.

The support mechanism 400 is composed of an upper flange 412, a lower flange 411, and a plug 430, which are a pair of upper and lower flanges 410.
The plug 430 may be made of metal.
For example, the plug 430 is made of lead.
For example, the plug 430 is made of lead-tin alloy.
For example, the plug 430 is made of another alloy.
The plug 430 has an upper flange 412, a lower flange 411, an upper portion and a lower portion fixed to each of a pair of upper and lower flanges.
For example, the plug 430 is a cylindrical member whose upper portion is fixed to the lower portion of the upper flange 412 and its lower portion is fixed to the lower flange 411.
For example, the plug 430 is a cylindrical member, the upper portion of which is fitted into a recess provided in the lower portion of the upper flange 412, and the lower portion of which is fitted in a recess provided in the upper portion of the lower flange 411.

The support mechanism 400 may be composed of a laminated member 420, an upper flange 412 which is a pair of upper and lower flanges 410, a lower flange 411, and a plug 430.
The laminated member 420 is formed by laminating a plurality of plate-shaped members in the vertical direction and providing a columnar hollow portion W extending in the vertical direction.
The lower flange 411 and the upper flange 412, which are a pair of upper and lower flanges 410, sandwich the laminated member 420 in the vertical direction.
The plug 430 is located in the hollow portion W, and the upper part and the lower part are fixed to each of a pair of upper and lower flanges.
The plug 430 may be filled in the hollow portion W, and the upper portion and the lower portion may be fitted to each of a pair of upper and lower flanges.
FIG. 11 shows how the plug 430 is filled in the hollow portion W and the upper part and the lower part are fixed to each of a pair of upper and lower flanges.
FIG. 12 shows how the plug 430 is located in the hollow portion W and the upper part and the lower part are fixed to each of a pair of upper and lower flanges.
FIG. 12 shows how the plug 430 is located in the hollow portion W with a horizontal gap, and the upper part and the lower part are fixed to each of a pair of upper and lower flanges.

The laminated member 420 may be one in which a single or a plurality of metal plate-shaped members 421 and a single or a plurality of elastic material plate-shaped members 422 are alternately overlapped in the vertical direction and adhered to each other.
In such a structure, when the upper flange 412 and the lower flange 411 move relative to each other in the horizontal direction, the elastic plate-shaped member 422 is sheared and deformed in the horizontal direction, and the laminated member 420 is sheared and deformed in the horizontal direction as a whole.

The laminated member 420 may be one in which a plurality of metal plate-shaped members 421 are vertically overlapped with each other.
The surfaces of the plurality of metal plate-shaped members 421 may be treated to have low friction.
For example, the surface of a plurality of metal plate-shaped members 421 may be treated with PTFE impregnation.
In such a structure, when the upper flange 412 and the lower flange 411 move relative to each other in the horizontal direction, the metal plate-shaped member 421 slides at the boundary in the horizontal direction, and the laminated member 420 is sheared and deformed in the horizontal direction as a whole.

The support mechanism 400 may be composed of a laminated member 420, an upper flange 412 which is a pair of upper and lower flanges 410, a lower flange 411, a plug 430, and an outer peripheral covering member 440.
The outer peripheral covering member 440 is a member that covers the laminated member 420 and the outer peripheral surface.
The outer peripheral covering member 440 may be a laminated member 420 and an elastic member that covers the outer peripheral surface.
The outer peripheral covering member 440 may be a laminated member 420 and a metal member that covers the outer peripheral surface.

The upper flange 412 of the support mechanism 400 is fixed to the foundation structure 500 described later, and the lower flange 411 of the support mechanism 400 is fixed to the upper part of the filler plate 300.
The upper flange 412 of the support mechanism 400 is screwed to the foundation structure 500 described later, and the lower flange 411 of the support mechanism 400 is screwed to the upper part of the filler plate 300.
The upper flange 412 of the support mechanism 400 may be fixed to the ceiling portion of the hollow space H of the foundation structure 500 described later, and the lower flange 411 of the support mechanism may be fixed to the upper part of the filler plate 300.

The lower flange 411 of the support mechanism 400 may be fixed to the upper part of the filler plate 300 via the lower flange adapter 413 which is a flange-shaped member having a surface larger than that of the lower flange 411.
FIG. 13A shows how the lower flange 411 of the support mechanism 400 is fixed to the upper part of the filler plate via the lower flange adapter 413.

The upper flange 412 of the support mechanism 400 may be fixed to the base member 510 via the upper flange adapter 414, which is a flange-shaped member having a surface larger than that of the upper flange 412.
FIG. 13B shows how the upper flange 412 of the support mechanism 400 is fixed to the base member 510 via the upper flange adapter 414.

The lower flange 411 of the support mechanism 400 is fixed to the upper part of the filler plate 300 via the lower flange adapter 413 which is a flange-shaped member having a surface larger than that of the lower flange 411, and the upper flange 412 of the support mechanism 400 is from the upper flange 412. It may be fixed to the base member 510 via the upper flange adapter 414, which is a flange-shaped member having a large surface.

The plug is sheared and deformed in the horizontal direction before the foundation pile 200 is damaged by the horizontal force generated when an earthquake occurs.
FIG. 2 shows how the plug 430 is sheared and deformed in the horizontal direction before the foundation pile is damaged by the horizontal force generated when an earthquake occurs.
In the structure shown in FIG. 11, when a horizontal shearing force acts on the upper flange 412 and the lower flange 411, a plurality of plate-shaped members of the laminated member 420 move relative to each other in the horizontal direction, and the plug 430 and the laminated member 420 come together. It is sheared and deformed as a unit.
In the structure shown in FIG. 12, when a horizontal shearing force acts on the upper flange 412 and the lower flange 411, a plurality of plate-shaped members of the laminated member 420 move relative to each other in the horizontal direction, and the plug moves in the hollow portion W. Shear deformation.

The foundation structure 500 is composed of a foundation member 510 and a beam member 520.
The foundation structure 500 may be composed of a plurality of foundation members 510 and a plurality of beam members 520.

The foundation member 510 is a member whose upper portion is fixed to the lower portion of the pillar 11 of the structure 10.
The foundation members 510 may be arranged so as to be scattered when viewed from above, and the upper portion may be fixed to the lower portion of the pillar 11 of the structure 10.
The foundation members 510 may be arranged so as to be scattered in a grid pattern when viewed from above, and the upper portion may be fixed to the lower portion of the pillar 11 of the structure 10.

The foundation member 510 has an upper portion fixed to the lower portion 11 of the pillar 10 of the structure, has an opening facing downward at the lower portion, and has a hollow space H containing a pile head 210, a filler plate 300, and a support mechanism 400, and a circumference of the opening. It may be a member forming the lower surface D of the foundation member which is the lower surface facing downward.
The foundation member 510 has an upper portion fixed to the lower portion 11 of the pillar 10 of the structure, has an opening facing downward at the lower portion, and has a hollow space H containing a pile head 210, a filler plate 300, and a support mechanism 400, and a circumference of the opening. It may be a member forming the lower surface D of the foundation member which is the lower surface facing downward.
The foundation member 510 has an upper portion fixed to the lower portion of the pillar 11 of the structure 10, has an opening facing downward at the lower portion, and surrounds the hollow space H containing the pile head 210, the filler plate 300, and the support mechanism, and the opening. It may be a member forming the lower surface D of the foundation member which is the lower surface facing downward.
In FIGS. 6A, 7B, and 8B, a hollow section H having a downwardly facing opening formed by the foundation member 510 includes a pile head 210, a filler plate 300, and a support mechanism. Show the situation.

The beam member 520 is a member that extends horizontally and connects a plurality of foundation members 510.
The reinforcing bars of the beam member 520 intersect with the reinforcing bars of the foundation member 510.
In this way, the foundation structure 500 becomes one.
When an earthquake occurs, the foundation structure 500 can move horizontally as a unit.

The foundation member 510 may be composed of a foundation structure flange 511 and an inner wall plate-shaped member 512.
The foundation member 510 may be composed of a foundation structure flange 511, an inner wall plate-shaped member 512, and a flange-shaped member 513.
The foundation member 510 may be composed of a foundation structure flange 511, an inner wall plate-shaped member 512, a flange-shaped member 513, and a reinforced concrete structure 514.
The foundation structure flange 511 is a plate-shaped member to which the upper flange of the support mechanism 400 is fixed to form the ceiling portion of the hollow space H.
The foundation structure flange 511 is fixed to the upper flange 412.
For example, the foundation structure flange 511 is screwed to the upper flange 412.
The inner wall plate-shaped member 512 is a plate-shaped member having an upper portion connected around the foundation structure flange 511 to form an inner wall of the hollow space H. For example, the inner wall plate-shaped member 512 has an upper portion connected around the foundation structure flange 511 and a lower portion. May be a plate-like member that abuts on the concrete layer to form the inner wall of the hollow space H.
The flange-shaped member 513 is a plate-shaped member connected to the lower end of the inner wall plate-shaped member 512 and extending to the periphery.
The reinforced concrete structure 514 may be constructed by using the foundation structure flange 511 and the inner wall plate-like member 512 as a formwork.
For example, in the reinforced concrete structure 514, the end portion of the barbed material of the reinforced concrete structure is fixed to the inner wall plate-like member 512.
The foundation structure flange 511, the inner wall plate-shaped member 512, and the reinforced concrete structure 514 may integrally function as the foundation member 510.
The foundation structure flange 511, the inner wall plate-shaped member 512, the flange-shaped member 513, and the reinforced concrete structure 514 may integrally function as the foundation member 510.
FIG. 6A shows how the foundation structure flange 511, the inner wall plate-shaped member 512, the flange-shaped member 513, and the reinforced concrete structure 514 integrally function as the foundation member 510.

The foundation member 510 may be provided with a through hole M capable of connecting the hollow space H and the outside and carrying in and out the support mechanism 400.
The foundation member 510 may be provided with a through hole M that connects the hollow space H and the outside so that a worker can enter the hollow space H from the outside.
For example, the through hole M is a manhole.
The foundation member 510 may be provided with a through hole M at the upper portion thereof so that a worker can enter the hollow space H from the outside.
The foundation member 510 may be provided with a through hole M on the side surface so that an operator can enter the hollow space H from the outside.
The foundation member 510 may be provided with a through hole M in which an operator can enter the hollow space H from the outside and carry in and out the support mechanism 400.
The foundation member 510 may be provided with a through hole M in the upper part thereof so that an operator can enter the hollow space H from the outside and carry in and out the support mechanism 400.
FIG. 7 shows how the foundation member 510 is provided with a through hole M on the side surface through which the support mechanism 400 can be carried in and out.
FIG. 8 shows how the foundation member 510 is provided with a through hole M at the upper part through which the support mechanism 400 can be carried in and out.
In this way, after the structure is constructed, the worker can easily confirm the structure foundation.
In this way, after the structure is constructed, the worker can easily visually confirm the structure foundation.
In this way, after the structure is constructed, the worker can easily confirm the soundness of the structure foundation in the event of a large earthquake.
By doing so, when a large earthquake occurs after the structure is constructed, the worker can easily confirm the soundness of the structure foundation and correct the deformation of the support mechanism 400.
In this way, after the structure is constructed, when there is a large earthquake, the worker can easily confirm the soundness of the structure foundation and replace the support mechanism 400.

The lower surface D of the foundation member may abut on the upper surface S of the concrete layer so as to be relatively movable in the horizontal direction.
In this way, when a force trying to levitate a part of the pillars 11 of the plurality of pillars 11 of the structure 10 is applied, the lower surface D of the foundation member 510 of the foundation member 510 fixed to the pillar 11 on the opposite side is applied. Is in contact with the upper surface S of the concrete layer, and the floating of the structure 10 can be suppressed.
6 (A), 7 and 8 show how the lower surface D of the foundation member abuts on the upper surface S of the concrete layer so as to be relatively movable in the horizontal direction.

One foundation pile 200 may support one filler plate 300, one support mechanism 400, and one foundation member 510.
FIG. 9A shows how one foundation pile 200 supports one filler plate 300, one support mechanism 400, and one foundation member 510.
A plurality of foundation piles 200 may support one filler plate 300, one support mechanism 400, and one foundation member 510.
9 (B) to 9 (D) show how a plurality of foundation piles 200 support one filler plate 300, one support mechanism 400, and one foundation member 510.

One foundation pile 200 may support one filler plate 300, one support mechanism 400, and one foundation member 510.
FIG. 10A shows the situation.
N foundation piles 200 may support N filler plates 300 and N support mechanisms 400, and N support mechanisms 400 may support one foundation member 510.
FIG. 10B shows the situation.
N foundation piles 200 support one filler plate 300, one filler plate 300 supports N support mechanisms 400, and N support mechanisms 400 support one foundation member 510. You may.
FIG. 10C shows the situation.

The check step S20 is a step of checking the horizontal deviation value between the upper flange 412 and the lower flange 411 of the support mechanism 400 after the generated earthquake has converged.
In the check step S20, after the generated earthquake has converged, the horizontal orientations of the upper flange 412 and the lower flange 411 of the support mechanism 400 and their deviation values may be checked.
When an earthquake of a scale larger than expected occurs, a large shearing force acts between the pile value 210 of the foundation pile 200 and the foundation member 510.
When a large shearing force acts, plastic deformation occurs in the plug 430 of the support mechanism 400.
As a result, the lower flange 411 and the upper flange 412 are displaced in the horizontal direction.
When viewed from above, the direction and deviation value of the horizontal deviation are measured on the lower flange 411 and the upper flange 412.
When the deviation value exceeds a predetermined amount, the jack-up step S30, the support mechanism removing step S40, the new support mechanism preparation step S50, and the support mechanism installation step S60 are executed.
When the deviation value exceeds a predetermined amount, the jack-up step S30, the support mechanism removal step S40, the new support mechanism preparation step S50, the support mechanism installation step S60, and the jack removal step S70 may be executed.

The jack-up step S30 is a step of biting the jack 600 between one of the filler plate 300 or the concrete layer 100 and the foundation member 510 to lift the foundation member.
In the jack-up step S30, the jack 600 may be bitten between the filler plate 300 and the foundation member 510 to lift the foundation member 510.
In the jack-up step S30, the jack 600 may be bitten between the concrete layer 100 and the foundation member 510 to lift the foundation member 510.
In the jack-up step S30, the jack 600 is bitten between one of the filler plate 300 or the concrete layer 100 and the foundation member 510, the foundation member is lifted, and the space between the filler plate 300 and the foundation member 510 is slightly widened. You may.
In the jack-up step S30, even if the jack 600 is bitten between one of the filler plate 300 or the concrete layer 100 and the foundation member 510 to lift the foundation member 510 and the normal force acting on the support mechanism 400 is reduced. good.
In the jack-up step S30, the jack 600 is bitten between one of the filler plate 300 or the concrete layer 100 and the foundation member 510 to lift the foundation member 510 so that the support mechanism 400 can be displaced in the horizontal direction. You may.
The jack 600 may be pre-installed.
The jack 600 may be a screw type.
The jack 600 may be a hydraulic cylinder.
The jack 600 may be a ram cylinder.

The support mechanism removing step S40 is a step of removing the support mechanism 400 from between the filler plate 300 and the foundation member 510, moving the support mechanism 400 in the horizontal direction, and taking it out to the outside.
In the support mechanism removing step S40, the support mechanism 400 may be removed from between the filler plate 300 and the foundation member, moved in the horizontal direction, and discharged from the hollow space H to the outside through the through hole M.
When the support mechanism 400 is connected to the filler plate 300 with bolts, the support mechanism 400 is removed from between the filler plate 300 and the foundation member 510 after the bolts are removed, and the support mechanism 400 is moved horizontally to be taken out.
When the support mechanism 400 is bolted to the foundation member 510, the support mechanism 400 is removed from between the filler plate 300 and the foundation member 510 after the bolts are removed, and the support mechanism 400 is moved horizontally to be taken out.

When the lower flange 411 of the support mechanism 400 is fixed to the upper part of the filler plate 300 via the lower flange adapter 413 which is a flange-shaped member having a surface larger than that of the lower flange 411, the support mechanism removing step S40 is performed by the support mechanism 400. May be integrated with the lower flange adapter 413 and removed from between the filler plate 300 and the base member 510 and moved in the horizontal direction to the outside.
In the support mechanism removing step S40, the support mechanism 400 may be integrated with the lower flange adapter 413, removed from between the filler plate 300 and the foundation member 510, moved horizontally, and discharged from the hollow space H through the through hole M to the outside. ..

When the upper flange 412 of the support mechanism 400 is fixed to the base member 500 via the upper flange adapter 414 which is a flange-shaped member having a surface larger than that of the upper flange 412, the support mechanism removing step S40 raises the support mechanism 400. It may be removed from between the filler plate 300 and the base member 510 together with the flange adapter 414 and moved in the horizontal direction to the outside.
In the support mechanism removing step S40, the support mechanism 400 may be integrated with the upper flange adapter 414, removed from between the filler plate 300 and the foundation member 510, moved horizontally, and discharged from the hollow space H through the through hole M to the outside. ..

The new support mechanism preparation step S50 is a step of preparing a new support mechanism 400n.
In the new support mechanism preparation step S50, a new support mechanism 400n corresponding to the deviation amount G may be prepared.
In the new support mechanism preparation step S50, a new support mechanism 400n processed corresponding to the displacement amount G may be prepared.
For example, in the new support mechanism preparation step S50, a new support mechanism processed by shifting the mounting bolt holes according to the deviation amount G may be prepared.

In the new support mechanism preparation step S50, a new support mechanism 400n having an upper flange 412 or a lower flange 411 machined according to the horizontal displacement amount G between the upper flange 412 and the lower flange 411 of the removed support mechanism 400 is provided. You may prepare.
The new support mechanism preparation step S50 has a new upper flange 412 or lower flange 411 machined according to the horizontal deviation direction and the deviation amount G of the upper flange 412 and the lower flange 411 of the removed support mechanism 400. A support mechanism 400n may be prepared.
In the new support mechanism preparation step S50, even if a new support mechanism 400n having a lower flange 411 processed according to the horizontal displacement amount G between the upper flange 412 and the lower flange 411 of the removed support mechanism 400 is prepared. good.
FIG. 4A shows a new support mechanism 400n having a lower flange 411 machined according to the amount of displacement.
In the new support mechanism preparation step S50, even if a new support mechanism 400n having the upper flange 412 processed according to the horizontal displacement amount G between the upper flange 412 and the lower flange 411 of the removed support mechanism 400 is prepared. good.
FIG. 4B shows a new support mechanism 400n having an upper flange 412 machined according to the amount of displacement.
The new support mechanism preparation step S50 is a new support mechanism 400n having an upper flange 412 and a lower flange 411 machined according to the horizontal displacement amount G between the upper flange 412 and the lower flange 411 of the removed support mechanism 400. May be prepared.
FIG. 4C shows a new support mechanism 400n having an upper flange 412 and a lower flange 411 machined according to the amount of displacement.

When the lower flange 411 of the support mechanism is fixed to the upper part of the filler plate 300 via the lower flange adapter 413 which is a flange-shaped member having a surface larger than that of the lower flange 411, the support removed by the new support mechanism preparation step S50. A new support mechanism 400n having a lower flange adapter 413 machined according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the mechanism 400 may be prepared.
Even if a new support mechanism 400n having a new lower flange adapter 413 machined according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the support mechanism 400 removed by the new support mechanism preparation step S50 is prepared. good.

When the upper flange 412 of the support mechanism 400 is fixed to the base member 510 via the upper flange adapter 414, which is a flange-shaped member having a larger surface than the upper flange 412, the support mechanism removed by the new support mechanism preparation step S50. A new support mechanism 400n including an upper flange adapter 414 machined according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the 400 may be prepared.
Even if a new support mechanism 400n including a new upper flange adapter 414 processed according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the support mechanism 400 removed by the new support mechanism preparation step S50 is prepared. good.

The support mechanism installation step S60 is a step in which a new support mechanism 400n is inserted from the outside and horizontally moved between the filler plate 300 and the foundation member 510 to be installed.
In the support mechanism installation step S60, a new support mechanism 400n may be inserted into the hollow space H from the outside through the through hole M and horizontally moved between the filler plate and the foundation member.

When the lower flange 411 of the support mechanism 400 is fixed to the upper part of the filler plate 300 via the lower flange adapter 414 which is a flange-shaped member having a surface larger than that of the lower flange 411, the support mechanism installation step S60 is a new support. The mechanism 400n may be inserted from the outside together with the new lower flange adapter 413 and horizontally moved between the filler plate 300 and the base member 510.
The support mechanism installation step S60 installs the new support mechanism 400n integrally with the new lower flange adapter 413 by inserting it into the hollow space H from the outside through the through hole M and horizontally moving it between the filler plate 300 and the foundation member 510. You may.

When the upper flange 411 of the support mechanism 400 is fixed to the base member 510 via the upper flange adapter 414 which is a flange-shaped member having a surface larger than that of the upper flange 412, the support mechanism installation step S60 is a new support mechanism 400n. May be inserted from the outside together with the new upper flange adapter 414 and horizontally moved between the filler plate 300 and the base member 510.
The support mechanism installation step S60 installs the new support mechanism 400 integrally with the new upper flange adapter 414 by inserting it into the hollow space H from the outside through the through hole M and horizontally moving it between the filler plate 300 and the base member 510. You may.

The jack removing step S70 is a step of removing from the foundation member with the jack 600.
The removed jack 600 may be taken out.
The removed jack 600 may be left in the same position.

As described above, the maintenance method of the structural foundation according to the embodiment of the present invention has the following effects depending on its configuration.
The foundation pile 200 penetrates the concrete layer 100 placed on the ground 5, the filler plate 300 is fitted to the pile head exposed from the upper surface of the concrete layer 100, and the lower flange 411 is fixed to the upper part of the filler plate 300. The upper and lower sides of the plug 430 are fixed to a pair of upper and lower flanges 410, and the upper flange 412 of the support mechanism 400 is fixed to the foundation structure fixed to the lower part of the pillar. Prepares a structural foundation in which the filler plate 300 and the support structure are included, and the lower surface of the foundation member around the opening abuts on the upper surface of the concrete layer 100 so as to be relatively movable in the horizontal direction. Lift, remove the support mechanism 400 from between the filler plate 300 and the foundation member, move it horizontally to the outside, prepare a new support mechanism 400n, and pass the new support mechanism 400n from the outside through the through hole in the hollow space H. Since it was installed by moving horizontally between the filler plate 300 and the foundation member, the support mechanism 400 was replaced when an earthquake of an unexpected scale occurred, and the initial function of the structural foundation was changed. Can be maintained.
Further, the structural foundation is prepared, the jack 600 is bitten to lift the foundation member, the support mechanism 400 is removed from between the filler plate 300 and the foundation member, and the support mechanism 400 is moved in the horizontal direction from the hollow space H to the outside through the through hole. A new support mechanism 400n was prepared, and the new support mechanism 400n was placed in the hollow space H from the outside through a through hole and horizontally moved between the filler plate 300 and the foundation member. The support mechanism 400 can be replaced in the event of an earthquake of magnitude greater than that to maintain the initial function of the structural foundation.
Further, the foundation structure flange to which the upper flange 412 of the support member is fixed forms the ceiling portion of the hollow space H, the inner wall plate-shaped member forms the inner wall of the hollow space H, and the foundation member is the foundation structure flange and the inner wall plate shape. Since the member is made into a reinforced concrete structure constructed as a mold, the foundation member can be manufactured integrally with the hollow space H, and the work in the hollow space H can be made safer.
Further, after the generated earthquake has converged, the horizontal deviation values of the upper flange 412 and the lower flange 411 of the support mechanism 400 are checked, and when the deviation amount exceeds a predetermined amount, processing is performed corresponding to the deviation amount. Since the new support mechanism 400n has been prepared, the support mechanism 400 can be replaced in response to the amount of displacement when an earthquake of an unexpected scale occurs, and the initial function of the structure foundation can be maintained. ..
In addition, a new support mechanism 400n having an upper flange 412 or a lower flange 411 processed according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the removed support mechanism 400n is prepared. When an earthquake of a magnitude exceeding the above occurs, the support mechanism 400 can be replaced in response to the amount of displacement, and the initial function of the structural foundation can be maintained.
Further, the structure foundation has a structure in which the lower flange 411 is fixed on the feeler plate via the lower flange adapter 413, and the support mechanism 400 and the lower flange adapter 413 are integrated from between the filler plate 300 and the foundation member. A new support mechanism 400n and a new support mechanism 400n are prepared by preparing a lower flange adapter 413 and a new support mechanism 400n processed according to the amount of horizontal displacement between the upper flange 412 and the lower flange 411 of the removed support mechanism 400. Since the lower flange adapter 413 is integrated and installed by moving horizontally between the filler plate 300 and the foundation member, the support mechanism 400 corresponds to the amount of displacement when an earthquake of an unexpected scale occurs. Can be replaced to maintain the initial function of the structural foundation.
Further, the structure foundation has a structure in which the upper flange 412 is fixed to the foundation member via the upper flange adapter 414, and the support mechanism 400 and the upper flange adapter 414 are integrally removed from between the filler plate 300 and the foundation member. Prepare an upper flange adapter 414 and a new support mechanism 400n processed according to the amount of horizontal displacement between the upper flange and the lower flange 411 of the removed support mechanism 400, and prepare a new support mechanism 400n and a new upper flange. Since the adapter 414 is integrated and installed by moving horizontally between the filler plate 300 and the foundation member, the support mechanism 400 is replaced according to the amount of displacement when an earthquake of an unexpected scale occurs. Therefore, the initial function of the structural foundation can be maintained.
As a result, it is possible to provide a maintenance method for the structural foundation to maintain the initial function of the structural foundation in the event of an earthquake of an unexpected scale.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the gist of the invention.

S10 Preparation process S20 Check process S30 Jack-up process S40 Support mechanism removal process S50 New support mechanism preparation process S60 Support mechanism installation process S70 Jack removal process G Misalignment amount W Hollow part H Hollow space M Through hole D Foundation member lower surface S Concrete layer Top surface 5 Ground 10 Structure 11 Pillar 100 Concrete layer 200 Foundation pile 210 Pile head 220 Pile body 300 Filler plate 310 Plate-shaped part 311 Fastening bolt 320 Ring part 330 Projection part 340 Birth-shaped part 400 Support mechanism 400n New support mechanism 410 Flange 411 Lower flange 412 Upper flange 413 Lower flange adapter 414 Upper flange adapter 420 Laminated member 421 Metal plate-shaped member 422 Elastic plate-shaped layer member 430 Plug 440 Outer peripheral covering member 500 Foundation structure 510 Foundation member 511 Foundation structure flange 512 Inner wall plate Shaped member 513 Collared member 514 Reinforced concrete structure 520 Beam member 600 Jack 1000 Ground surface

Japanese Patent Application Laid-Open No. 9-273162 Japanese Patent Application Laid-Open No. 10-2126 Japanese Unexamined Patent Publication No. 2006-104883 JP-A-2007-120232 JP 2013-87438 Japanese Unexamined Patent Publication No. 2013-15997 JP 2015-190302 Japanese Unexamined Patent Publication No. 2016-8389 JP-A-2017-186819

Claims (10)

It is a maintenance method of the structural foundation that supports the structure provided on the ground and has columns.
A concrete layer placed on the ground and
A foundation pile, which is a pile that penetrates the concrete layer and is driven into the ground and has a pile head, which is the head.
A filler plate, which is a structural member whose lower part is fixed to the pile head and whose upper part faces upward,
A support mechanism having a support mechanism having a plug, which is a pillar-shaped member, in which an upper flange, a lower flange, and an upper part and a lower part, which are a pair of upper and lower flanges, are fixed to the pair of upper and lower flanges, respectively.
A foundation structure having a plurality of foundation members arranged so as to be scattered when viewed from above and having an upper portion fixed to the lower part of a pillar of the structure and a plurality of beam members extending horizontally to connect the plurality of foundation members.
Have,
The upper flange of the support mechanism is fixed to the foundation structure,
A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the upper part of the filler plate.
A jack-up step of lifting the foundation member by biting a jack between the filler plate or one of the concrete layers and the foundation member.
The support mechanism removing step of removing the support mechanism from between the filler plate and the foundation member and moving it in the horizontal direction to the outside.
Preparing a new support mechanism A new support mechanism preparation process and
A support mechanism installation process in which the new support mechanism is horizontally moved between the filler plate and the foundation member from the outside and installed.
Equipped with
The foundation structure is arranged so as to be scattered when viewed from above, the upper part is fixed to the lower part of the pillar of the structure, the lower part has an opening facing downward, and the hollow portion containing the pile head, the filler plate, and the support mechanism. It has a plurality of foundation members forming a space and a lower surface of a foundation member which is a lower surface facing downward around the opening, and a plurality of beam members extending horizontally to connect the plurality of foundation members, and the foundation member is the said. A through hole is provided to connect the hollow space and the outside and allow the support mechanism to be carried in and out.
The support mechanism removing step removes the support mechanism from between the filler plate and the foundation member, moves the support mechanism in the horizontal direction, and ejects the support mechanism from the hollow space to the outside through the through hole.
In the support mechanism installation step, a new support mechanism is placed in the hollow space from the outside through the through hole and horizontally moved between the filler plate and the foundation member.
A maintenance method for structural foundations, which is characterized by this. The foundation member is fixed to the upper flange of the support mechanism to form the ceiling portion of the hollow space. The foundation member flange and the upper portion are connected around the foundation member flange, and the lower portion is brought into contact with the concrete layer to form the hollow space. It has an inner wall plate-shaped member which is a plate-shaped member forming an inner wall, a reinforced concrete structure constructed by using the foundation member flange and the inner wall plate-shaped member as a mold, and the end of the reinforcing material of the reinforced concrete structure is the above. Fixed to the inner wall plate-shaped member,
The maintenance method for a structural foundation according to claim 1. After the generated earthquake has converged, the horizontal deviation value between the upper flange and the lower flange of the support mechanism is checked, and when the deviation amount exceeds a predetermined amount, the jack-up step and the support mechanism removal step And the new support mechanism preparation step, the support mechanism installation step, and the jack removal step are executed.
The new support mechanism preparation step prepares a new support mechanism corresponding to the deviation amount.
The maintenance method for a structural foundation according to claim 2. A new support mechanism having an upper flange or a lower flange processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
The maintenance method for a structural foundation according to claim 3. The lower flange of the support mechanism is fixed to the upper part of the filler plate via a lower flange adapter which is a flange-shaped member having a larger surface than the lower flange.
In the step of removing the support mechanism, the support mechanism is integrated with the lower flange adapter, removed from between the filler plate and the foundation member, and moved in the horizontal direction to the outside.
A new support mechanism including the lower flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
In the support mechanism installation process, the new support mechanism is inserted from the outside together with the new lower flange adapter and horizontally moved between the filler plate and the foundation member.
The maintenance method for a structural foundation according to claim 4. The upper flange of the support mechanism is fixed to the foundation member via an upper flange adapter, which is a flange-shaped member having a larger surface than the upper flange.
In the step of removing the support mechanism, the support mechanism is integrated with the upper flange adapter, removed from between the filler plate and the foundation member, and moved in the horizontal direction to the outside.
A new support mechanism including the upper flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
In the support mechanism installation process, the new support mechanism is inserted from the outside together with the new upper flange adapter and horizontally moved between the filler plate and the foundation member.
The maintenance method for a structural foundation according to claim 5. It is a maintenance method of the structural foundation that supports the structure provided on the ground and has columns.
A concrete layer placed on the ground and
A foundation pile, which is a pile that penetrates the concrete layer and is driven into the ground and has a pile head, which is the head.
A filler plate, which is a structural member whose lower part is fixed to the pile head and whose upper part faces upward,
A support mechanism having a support mechanism having a plug, which is a pillar-shaped member, in which an upper flange, a lower flange, and an upper part and a lower part, which are a pair of upper and lower flanges, are fixed to the pair of upper and lower flanges, respectively.
A foundation structure having a plurality of foundation members arranged so as to be scattered when viewed from above and having an upper portion fixed to the lower part of a pillar of the structure and a plurality of beam members extending horizontally to connect the plurality of foundation members.
Have,
The upper flange of the support mechanism is fixed to the foundation structure,
A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the upper part of the filler plate.
A jack-up step of lifting the foundation member by biting a jack between the filler plate or one of the concrete layers and the foundation member.
The support mechanism removing step of removing the support mechanism from between the filler plate and the foundation member and moving it in the horizontal direction to the outside.
Preparing a new support mechanism A new support mechanism preparation process and
A support mechanism installation process in which the new support mechanism is horizontally moved between the filler plate and the foundation member from the outside and installed.
Equipped with
After the generated earthquake has converged, the horizontal deviation value between the upper flange and the lower flange of the support mechanism is checked, and when the deviation amount exceeds a predetermined amount, the jack-up step and the support mechanism removal step And the new support mechanism preparation step, the support mechanism installation step, and the jack removal step are executed.
The new support mechanism preparation step prepares a new support mechanism corresponding to the deviation amount.
A maintenance method for structural foundations, which is characterized by this. It is a maintenance method of the structural foundation that supports the structure provided on the ground and has columns.
A concrete layer placed on the ground and
A foundation pile, which is a pile that penetrates the concrete layer and is driven into the ground and has a pile head, which is the head.
A filler plate, which is a structural member whose lower part is fixed to the pile head and whose upper part faces upward,
A support mechanism having a support mechanism having a plug, which is a pillar-shaped member, in which an upper flange, a lower flange, and an upper part and a lower part, which are a pair of upper and lower flanges, are fixed to the pair of upper and lower flanges, respectively.
A foundation structure having a plurality of foundation members arranged so as to be scattered when viewed from above and having an upper portion fixed to the lower part of a pillar of the structure and a plurality of beam members extending horizontally to connect the plurality of foundation members.
Have,
The upper flange of the support mechanism is fixed to the foundation structure,
A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the upper part of the filler plate.
A jack-up step of lifting the foundation member by biting a jack between the filler plate or one of the concrete layers and the foundation member.
The support mechanism removing step of removing the support mechanism from between the filler plate and the foundation member and moving it in the horizontal direction to the outside.
Preparing a new support mechanism A new support mechanism preparation process and
A support mechanism installation process in which the new support mechanism is horizontally moved between the filler plate and the foundation member from the outside and installed.
Equipped with
A new support mechanism having an upper flange or a lower flange processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
A maintenance method for structural foundations, which is characterized by this. It is a maintenance method of the structural foundation that supports the structure provided on the ground and has columns.
A concrete layer placed on the ground and
A foundation pile, which is a pile that penetrates the concrete layer and is driven into the ground and has a pile head, which is the head.
A filler plate, which is a structural member whose lower part is fixed to the pile head and whose upper part faces upward,
A support mechanism having a support mechanism having a plug, which is a pillar-shaped member, in which an upper flange, a lower flange, and an upper part and a lower part, which are a pair of upper and lower flanges, are fixed to the pair of upper and lower flanges, respectively.
A foundation structure having a plurality of foundation members arranged so as to be scattered when viewed from above and having an upper portion fixed to the lower part of a pillar of the structure and a plurality of beam members extending horizontally to connect the plurality of foundation members.
Have,
The upper flange of the support mechanism is fixed to the foundation structure,
A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the upper part of the filler plate.
A jack-up step of lifting the foundation member by biting a jack between the filler plate or one of the concrete layers and the foundation member.
The support mechanism removing step of removing the support mechanism from between the filler plate and the foundation member and moving it in the horizontal direction to the outside.
Preparing a new support mechanism A new support mechanism preparation process and
A support mechanism installation process in which the new support mechanism is horizontally moved between the filler plate and the foundation member from the outside and installed.
Equipped with
The lower flange of the support mechanism is fixed to the upper part of the filler plate via a lower flange adapter which is a flange-shaped member having a larger surface than the lower flange.
In the step of removing the support mechanism, the support mechanism is integrated with the lower flange adapter, removed from between the filler plate and the foundation member, and moved in the horizontal direction to the outside.
A new support mechanism including the lower flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
In the support mechanism installation process, the new support mechanism is inserted from the outside together with the new lower flange adapter and horizontally moved between the filler plate and the foundation member.
A maintenance method for structural foundations, which is characterized by this. It is a maintenance method of the structural foundation that supports the structure provided on the ground and has columns.
A concrete layer placed on the ground and
A foundation pile, which is a pile that penetrates the concrete layer and is driven into the ground and has a pile head, which is the head.
A filler plate, which is a structural member whose lower part is fixed to the pile head and whose upper part faces upward,
A support mechanism having a support mechanism having a plug, which is a pillar-shaped member, in which an upper flange, a lower flange, and an upper part and a lower part, which are a pair of upper and lower flanges, are fixed to the pair of upper and lower flanges, respectively.
A foundation structure having a plurality of foundation members arranged so as to be scattered when viewed from above and having an upper portion fixed to the lower part of a pillar of the structure and a plurality of beam members extending horizontally to connect the plurality of foundation members.
Have,
The upper flange of the support mechanism is fixed to the foundation structure,
A preparatory step for preparing a structural foundation in which the lower flange of the support mechanism is fixed to the upper part of the filler plate.
A jack-up step of lifting the foundation member by biting a jack between the filler plate or one of the concrete layers and the foundation member.
The support mechanism removing step of removing the support mechanism from between the filler plate and the foundation member and moving it in the horizontal direction to the outside.
Preparing a new support mechanism A new support mechanism preparation process and
A support mechanism installation process in which the new support mechanism is horizontally moved between the filler plate and the foundation member from the outside and installed.
Equipped with
The upper flange of the support mechanism is fixed to the foundation member via an upper flange adapter, which is a flange-shaped member having a larger surface than the upper flange.
In the step of removing the support mechanism, the support mechanism is integrated with the upper flange adapter, removed from between the filler plate and the foundation member, and moved in the horizontal direction to the outside.
A new support mechanism including the upper flange adapter processed according to the amount of horizontal displacement between the upper flange and the lower flange of the support mechanism removed by the new support mechanism preparation step is prepared.
In the support mechanism installation process, the new support mechanism is inserted from the outside together with the new upper flange adapter and horizontally moved between the filler plate and the foundation member.
A maintenance method for structural foundations, which is characterized by this.

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