System of Structures

Abstract

To provide a system of a structure that is improved in shear resistance of a lower structure while facilitating designing.SOLUTION: The present invention relates to a system of a structure that comprises the structure 100 which comprises a lower structure 10 and a base plate 20 fixed to the lower structure 10 and a reinforcement structure, wherein the reinforcement structure includes a reinforcement member which is a reinforcement part 200 which resists horizontal force generated at the structure 100, and the reinforcement member further comprises an anchor bolt B1 which overlaps with the base plate 20 when viewed along the horizontal direction to penetrates and fix the reinforcement member.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to a system for a structure.

Background Art

[0002] For the column foot of a building, a force (rotational force) that acts to topple the column and a shear force in a direction orthogonal to the longitudinal direction of the column are applied by an external input such as an earthquake. Patent Document 1 discloses a technique of providing a movement restraint member such as a plate that bears a force separately from a fitting provided at the intersection of a column and a beam without adhering the fitting provided at the intersection of the column and the beam to the concrete slab surface in order to ensure the shear resistance (shear strength) against the shear force applied to the column foot. Further, Patent Document 2 discloses, as an effective fixing structure of an exposed column foot when applied to a steel column that becomes a corner column or a side column of a steel frame building, in the fixing structure of the exposed column foot, a horizontal anchor member is joined to a base plate fixed to the lower end of a steel column located at an installation location where the spread of the covered concrete in the horizontal direction is not formed in at least one direction, in a direction opposite to the direction in which the spread of the covered concrete in the horizontal direction is not formed, and a structure buried in the covered concrete is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] For this type of structure, it is desired to improve the shear strength while facilitating the design.

[0005] The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a structure system that facilitates design and improves the shear strength of a structure.

Means for Solving the Problems

[0006] A structure system according to one aspect of the present invention is a structure system including a lower structure, a base plate fixed to the lower structure, and a reinforcing structure, wherein the reinforcing structure includes a reinforcing member that is a reinforcing portion that resists a horizontal force generated in the structure, and the reinforcing member overlaps the base plate when viewed along the horizontal direction and further includes anchor bolts fixed through the reinforcing member. A structure system according to another aspect of the present invention is a structure system including a lower structure, a base plate fixed to the lower structure, and a reinforcing structure, wherein the reinforcing structure includes a reinforcing member that is a reinforcing portion that resists a horizontal force generated in the structure, and the reinforcing member is a plate-like member that overlaps the base plate when viewed along the horizontal direction.

Effects of the Invention

[0007] According to the present invention, it is possible to provide a structure system that facilitates design and improves the shear strength of a structure.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] (First Embodiment) Hereinafter, with reference to the drawings, a structure system according to an embodiment of the present invention will be described. The structure system includes a structure 100 and a reinforcement structure. The structure 100 is provided in plural in a building such as a logistics facility, for example. The reinforcement structure includes a shear force reinforcement portion 200. The shear force reinforcement portion 200 is provided adjacent to the structure 100. The shear force reinforcement portion 200 reinforces the structure 100. The structure 100 and the shear force reinforcement portion 200 each have the following configuration.

[0010] In this embodiment, the structure 100 is embedded in the concrete slab CS, for example, as shown in FIG. 1. In this embodiment, the fact that the structure 100 is embedded in the concrete slab CS includes a state in which only a part of the structure 100 is embedded in the concrete slab CS. Specifically, for example, in the structure 100 shown in FIG. 1, the gusset plate 41 (described later) is embedded inside the concrete slab CS, but the gusset plate 41 may not be embedded in the concrete slab CS.

[0011] The structure 100 has the following configuration, for example, to ensure the seismic performance of the building. As shown in FIGS. 1 and 2, the structure 100 includes a lower structure 10, a base plate 20, a column member 30, and a brace 40. The lower structure 10 is, for example, a concrete structure such as a foundation member, a footing, or a foundation column type in a building. The lower structure 10 is, for example, a concrete slab CS. Each of the components described later is arranged in the lower structure 10. Each of the components described later is arranged, for example, inside the lower structure 10. In this embodiment, this state is included in the fact that the structure 100 is embedded in the concrete slab CS.

[0012] The base plate 20 is fixed to the lower structure 10. Specifically, the base plate 20 is fixed to the lower structure 10 by, for example, a plurality of first anchor bolts B1 as shown in FIG. 1. The number of the first anchor bolts B1 is appropriately determined in consideration of the size of the base plate 20, the required fastening force, etc. The base plate 20 is, for example, a steel plate. The base plate 20 may be, for example, other plate-shaped members. The base plate 20 is, for example, square as shown in FIG. 2. The base plate 20 may be circular, elliptical, or other shapes. The lower end of the column member 30 is connected to the base plate 20. Note that ribs (not shown) may be provided at the connection portion between the base plate 20 and the column member 30 to reinforce the connection portion between the base plate 20 and the column member 30.

[0013] The column member 30 forms the building framework. As shown in FIG. 1, the column member 30 is provided on the base plate 20. Specifically, the column member 30 is fixed to the base plate 20 by welding, for example. Thereby, the column member 30 is fixed to the lower structure 10 via the base plate 20. The column member 30 is formed of steel material, for example. The column member 30 may be formed of other materials, for example. The column member 30 is square tubular, for example. The column member 30 may be cylindrical or have other shapes, for example. For the column member 30, a pinned column base or a normal column base is preferably used, for example. Any other structure may be used for the column member 30.

[0014] The brace 40 is a seismic reinforcement member in the building. The brace 40 is provided on the base plate 20. For the brace 40, a buckling-restrained brace such as an unbonded brace (registered trademark) manufactured by Nippon Steel Engineering Co., Ltd. is used, for example. The brace 40 is provided on a predetermined side of the column member 30 and the base plate 20, for example. The predetermined side is, for example, the side facing the column members 30 adjacent to each other in the building. As shown in FIG. 1, the brace 40 is provided obliquely in the building. One end of the brace 40 is connected to the base plate 20 via a gusset plate 41, for example. The other end of the brace 40 is connected to the upper part of the adjacent column member 30, for example.

[0015] The shear force reinforcement part 200 is fixed to the lower structure 10. The shear force reinforcement part 200 is fixed to the lower structure 10, for example, by a plurality of second anchor bolts B2. In the present embodiment, the shear force reinforcement part 200 includes, for example, a shear force reinforcement plate 210 and a plurality of second anchor bolts B2. In this case, the shear force reinforcement plate 210 is fixed to the lower structure 10 by each of the plurality of second anchor bolts B2. The plurality of second anchor bolts B2 are arranged, for example, along the vertical direction and in the direction in which the brace 40 extends. At the end of the shear force reinforcement plate 210 on the side of the column member 30, for example, ribs 220 are provided as shown in FIGS. 3 to 6. The ribs 220 transmit the shear force SF generated in the structure 100 to the plurality of second anchor bolts B2 (details will be described later).

[0016] As shown in FIG. 8, the shear force reinforcement part 200 resists only the shear force SF generated in the structure 100. Here, when an external force is applied to the building due to an earthquake or the like, the base plate 20 fixed to the lower structure 10 may be pushed or pulled along the axial direction of the brace 40 by the brace 40. At this time, the force in the direction along the axial direction of the brace 40 is decomposed into a vertical direction and a horizontal direction as shown in FIGS. 7 and 8. The force along the vertical direction is applied as a compressive force CF or a tensile force TF to the base plate 20 and the first anchor bolt B1 that fixes the base plate 20 to the lower structure 10. The force along the horizontal direction is applied as a shear force SF to the base plate 20 and the first anchor bolt B1 that fixes the base plate 20 to the lower structure 10.

[0017] When the base plate 20 is pushed along the axial direction of the brace 40, as shown in FIG. 7, for example, a force to topple the column member 30, that is, a rotational force RF with the lower end of the column member 30 as the rotation axis is generated. Further, the force in the direction along the axial direction of the brace 40 acts as a compressive force CF that presses the base plate 20 vertically downward toward the lower structure 10, and a shear force SF that acts in the horizontal direction toward the side opposite to the predetermined side where the brace 40 is provided on the base plate 20. Against the above-described rotational force RF, it can be countered by the first anchor bolt B1 that fixes the base plate 20 to the lower structure 10.

[0018] In addition to the compressive force CF acting as described above, the base plate 20 is also subjected to a compressive force CF due to the weight of the column member 30 and the weight (load) of the structure supported by the column member 30. At this time, sufficient frictional force FF is generated between the lower structure 10 and the base plate 20. Against the shear force SF, it can be resisted by this frictional force FF.

[0019] When the base plate 20 is pulled along the axial direction of the brace 40, as shown in FIG. 8, for example, a rotational force RF is generated in the direction opposite to the case where the base plate 20 is pushed along the axial direction of the brace 40. Further, the force in the direction along the axial direction of the brace 40 acts as a tensile force TF that peels the base plate 20 vertically upward from the lower structure 10, and a shear force SF that acts in the horizontal direction toward the predetermined side where the brace 40 is provided on the base plate 20. Against the above-described rotational force RF, it can be countered by the first anchor bolt B1 that fixes the base plate 20 to the lower structure 10.

[0020] The tensile force TF acting on the base plate 20 as described above cancels out the weight of the column member 30. Therefore, as shown in FIG. 8, the vertical force applied to the base plate 20 is the force obtained by subtracting the above-described tensile force TF from the compressive force CF applied to the base plate 20 due to the weight of the column member 30, and this force is applied to the base plate 20 as the compressive force CF. At this time, since sufficient frictional force FF does not occur between the lower structure 10 and the base plate 20, it becomes difficult to resist the shear force SF only by the first anchor bolt B1 that fixes the base plate 20.

[0021] For this reason, the shear force reinforcement part 200 is provided on a predetermined side of the base plate 20 where the brace 40 is provided as described above. Thereby, it is possible to resist the shear force SF generated when the base plate 20 is pulled along the axial direction of the brace 40 by the shear force reinforcement part 200. In the present embodiment, the shear force reinforcement part 200 is arranged as follows so as to be able to resist only the shear force SF generated in the structure 100.

[0022] That is, the shear force reinforcement part 200 is arranged so as to overlap the base plate 20 when viewed in the horizontal direction, for example, from a predetermined side of the base plate 20. That is, the shear force reinforcement part 200 is arranged so that the thickness of the base plate 20 is included inside the shear force reinforcement part 200 including the rib 220 in the height direction.

[0023] Specifically, for example, as shown in FIGS. 3 to 6, the shear force receiving surface 210s of the shear force reinforcement plate 210 is arranged to face the horizontal end of the base plate 20. The shear force receiving surface 210s is a surface that receives the shear force SF transmitted from the base plate 20. In the present embodiment, the shear force receiving surface 210s is the surface of the rib 220 facing the base plate 20. In the shear force reinforcement plate 210, the rib 220 is provided to increase the shear force receiving surface 210s.

[0024] By providing the rib 220, for example, the transmission of the shear force SF to the shear force reinforcement plate 210 can be smoothly performed. For example, by increasing the contact area with the base plate 20, the stress of the packing material G (described later) filled between the base plate 20 and the shear force reinforcement plate 210 can be relaxed. For example, the thickness of the shear force reinforcement plate 210 can be suppressed. In addition, when the base plate 20 and the shear force reinforcement plate 210 have the same thickness and there is no step, the rib 220 may not be provided.

[0025] In order to transmit the horizontal force applied to the base plate 20 to the shear force reinforcement portion 200, the structure between the shear force reinforcement portion 200 and the base plate 20 is preferably, for example, either of the following two forms. As a first form of the structure between the shear force reinforcement portion 200 and the base plate 20, as shown in FIGS. 3 and 4, a gap CL is provided between the shear force reinforcement plate 210 and the base plate 20. The gap CL between the shear force reinforcement plate 210 and the base plate 20 is filled with a packing material G. For the packing material G, for example, non-shrink mortar is used.

[0026] As a second form of the structure between the shear force reinforcement portion 200 and the base plate 20, as shown in FIGS. 5 and 6, the shear force reinforcement plate 210 abuts on the base plate 20. Here, when the surface of the base plate 20 facing the shear force reinforcing plate 210 moves upward, a force may act such that the shear force reinforcing plate 210 is lifted from the lower structure 10. In the present embodiment, the contact surface between the shear force reinforcing plate 210 and the base plate 20 is perpendicular as shown in FIGS. 3 and 5, for example. Alternatively, the contact surface between the shear force reinforcing plate 210 and the base plate 20 is inclined such that the end surface of the base plate 20 is positioned on the upper side when viewed from a direction orthogonal to the direction in which the shear force SF is generated and orthogonal to the vertical direction, as shown in FIGS. 4 and 6, for example. Thereby, as described above, the force that causes the shear force reinforcing portion 200 to be lifted from the lower structure 10 by the base plate 20 is suppressed.

[0027] With the above-described structure, the shear force SF generated in the structure 100 can be transmitted to a plurality of second anchor bolts B2 that fix the shear force reinforcing plate 210 to the lower structure 10. Specifically, a horizontal force applied to the base plate 20 via the brace 40 is transmitted to the shear force receiving surface 210s of the rib 220.

[0028] In the present embodiment, as shown in FIG. 16, a template T is used to determine the positions of each of the plurality of first anchor bolts B1 and each of the plurality of second anchor bolts B2. The template T is, for example, a plate-like member having holes corresponding to the positions where the first anchor bolt B1 or the second anchor bolt B2 is disposed. The template T includes, for example, a first template T1 for the base plate 20 and a second template T2 for the shear force reinforcing portion 200 separately. The first template T1 and the second template T2 may be integrally formed, for example. Further, the template T that is integrally formed as described above may be divisible and connectable.

[0029] In this embodiment, the first template T1 for the first anchor bolt B1, that is, for the base plate 20, and the second template T2 for the second anchor bolt B2, that is, for the shear force reinforcement part 200, are provided independently. As shown in FIG. 16, the first template T1 and the second template T2 are fixed by a detachable connecting member TC in order to fix their respective positional relationships. When reinforcing bars are arranged in the concrete slab CS, the connecting member TC can be removed in order to arrange the hoop bars H around the first anchor bolt B1. By providing such a connecting member, the positional relationship between the first anchor bolt B1 and the second anchor bolt B2 can be ensured. As described above, the template T has a function of ensuring the positional accuracy of the first anchor bolt B1 and the second anchor bolt B2 by determining the positions of the first anchor bolt B1 and the second anchor bolt B2, and enabling the arrangement of the hoop bars H surrounding the first anchor bolt B1.

[0030] As described above, according to the structure 100 according to the present embodiment, it includes a shear force reinforcement portion 200 that resists only the shear force SF generated in the structure 100. Thereby, the shear strength of the structure 100 can be improved. Here, when trying to improve the shear strength of the structure 100 by the base plate 20, it is necessary to increase the size of the base plate 20, increase the number of the first anchor bolts B1, increase the diameter of the first anchor bolts B1, or do all of them. In this case, the rigidity against the force for trying to lift the base plate 20 becomes higher than necessary. That is, for example, when the structure 100 includes the column member 30, that is, when the column member 30 is attached to the base plate 20, the rigidity (rotational rigidity of the joint) against the force (rotational force RF) acting to topple the column member 30 becomes higher than necessary. As a result, for example, the cost of the base plate 20 becomes higher than necessary. Further, for example, when the structure 100 includes the brace 40, that is, when the brace 40 is attached to the base plate 20, the force applied to the column member 30 is not sufficiently transmitted to the brace 40, which causes the performance of the brace 40 not to be fully utilized. Also, there is no existing column base product that can handle a large shear force SF, and separate design may be required in some cases.

[0031] By providing the shear force reinforcement portion 200, for example, the base plate 20 can be made into a structure that considers only the rotational rigidity of the joint. Therefore, the shear strength of the structure 100 can be improved without affecting the rotational rigidity of the structure 100. Thus, for example, it is possible to suppress increasing the base plate 20 more than necessary or increasing the first anchor bolts B1 more than necessary. Further, for example, when the structure 100 includes the column member 30 and the brace 40, that is, when the column member 30 and the brace 40 are attached to the base plate 20, the force applied to the column member 30 can be sufficiently transmitted to the brace 40. Therefore, the performance of the brace 40 can be fully utilized. Further, without increasing the number of the first anchor bolts B1 provided on the base plate 20, the stress borne by the first anchor bolts B1 can be suppressed. Therefore, the bending resistance of the first anchor bolts B1 provided on the base plate 20 can be ensured.

[0032] Here, for example, when the column member 30 and the brace 40 are provided on the base plate 20, the direction of the shear force SF generated in the structure 100 is along the direction in which the brace 40 extends, for example, when viewed from the vertical direction. For this reason, when the base plate 20 has a structure considering the shear strength, the rotational rigidity becomes asymmetric in the horizontal direction in order to add the first anchor bolts B1, etc. in the direction where the brace 40 is attached or to expand the base plate 20, and the structure of the base plate 20 becomes complicated. Since the structure 100 includes the shear force reinforcing part 200 and the base plate 20 can have a structure considering only the rotational rigidity of the joint part, the rotational rigidity of the joint part of the structure 100 can be made symmetric in the left-right direction. Therefore, the design of the structure 100 can be facilitated.

[0033] Further, the structure 100 further includes a brace 40 which is a seismic reinforcement member. The brace 40 is provided on the base plate 20. Thereby, for example, the strength of the structure 100 against an earthquake or the like can be improved, and the horizontal displacement of the structure 100 can be suppressed, and an improvement in the strength of the entire building and a suppression of the horizontal displacement can be expected.

[0034] Further, the structure 100 further includes a column member 30. The column member 30 is provided on the base plate 20. Thereby, it is possible to design with respect to the resultant force of the vertical force by the brace 40 and the vertical force supported by the column, and it is possible to simplify the joint part and simplify the design.

[0035] Further, the brace 40 is provided on a predetermined side of the column member 30 and the base plate 20. The shear force reinforcement part 200 is provided on the predetermined side of the base plate 20. That is, the shear force reinforcement part 200 is provided in accordance with the direction in which the brace 40 is provided. Thereby, the shear force reinforcement part 200 can resist the shear force SF generated when the base plate 20 is pulled by the brace 40.

[0036] Further, the shear force reinforcement part 200 includes compression anchors. By using compression anchors, it is possible to transmit the shear force SF to the concrete part without inducing local concrete failure, and the configuration according to the present invention can be realized. In addition, the construction cost can be suppressed by using known reinforcing bars or the like as compression anchors.

[0037] Further, the shear force reinforcement part 200 includes shear anchors. By using known shear anchors as the shear force reinforcement part 200, it is possible to construct in the same manner as the anchor bolts of the part to be reinforced at the construction site or the like. Therefore, the configuration according to the present invention can be realized without performing special design or developing new parts. Accordingly, an increase in cost can be suppressed.

[0038] Further, when viewed along the horizontal direction, the shear force reinforcement part 200 overlaps with the base plate 20. Thereby, the shear force reinforcement part 200 can surely resist the shear force SF generated in the base plate 20.

[0039] Here, when the shear force reinforcement part 200 and the base plate 20 are in direct contact, when a rotational force RF is applied to the base plate 20 from the column member 30, the shear force reinforcement part 200 may be deformed so as to be turned up by the base plate 20. A gap CL is provided between the shear force reinforcement part 200 and the base plate 20. Thereby, for example, it is possible to suppress a force from acting such that the shear force reinforcement part 200 is lifted by the base plate 20. The gap CL between the shear force reinforcement part 200 and the base plate 20 is filled with a packing material G. By these means, in the structure 100, the shear force reinforcement part 200 can be structured to resist only the shear force SF generated in the base plate 20. Also, construction errors occurring between the shear force reinforcement part 200 and the base plate 20 can be absorbed.

[0040] Further, the shear force reinforcement part 200 abuts on the base plate 20. Thereby, the effect of adding shear resistance to the structure 100 by the shear force reinforcement part 200 can be further enhanced.

[0041] Also, the shear force reinforcement part 200 includes a plurality of second anchor bolts B2. Thereby, against the shear force transmitted to the shear force reinforcement part 200, it can be resisted by the second anchor bolts B2. Therefore, shear resistance can be more reliably added to the structure 100.

[0042] Also, the structure 100 is embedded in the concrete slab CS. Thereby, at least a part of the structure 100 can be made invisible from the outside. Therefore, the design property can be improved. Further, for example, by embedding the first anchor bolt B1 inside the concrete slab CS, the available floor area can be increased. Further, it can be expected that the bearing resistance of the concrete slab CS is added to the column member 30 by the first anchor bolt B1 being embedded in the concrete slab CS.

[0043] Also, the contact surface between the shear force reinforcement part 200 and the base plate 20 is vertical or inclined such that the end face of the base plate 20 is positioned on the upper side. Thereby, it is possible to surely suppress a force from acting such that the shear force reinforcement part 200 is turned up by the base plate 20.

[0044] (Second Embodiment) Next, a system of the structure according to the second embodiment of the present invention will be described with reference to FIGS. 9 to 19. In this second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted, and only the different points will be described.

[0045] As shown in FIGS. 9 to 11, the system of the structure according to the second embodiment is different from the structure 100 in that it includes a compression anchor bolt 310 (compression anchor) and a stopper 320 as a second shear force reinforcing portion 300. In the present embodiment, the compression anchor bolt 310 needs to be located inside the concrete slab CS. In the present embodiment, the column member 30 does not necessarily need to be located inside the concrete slab CS.

[0046] The compression anchor bolt 310 extends along the horizontal direction. Specifically, the compression anchor bolt 310 extends, for example, along the direction in which the brace 40 is provided when viewed along the vertical direction among the horizontal directions. A plurality of compression anchor bolts 310 are provided in parallel. The compression anchor bolt 310 resists only the shear force SF.

[0047] Each of the plurality of compression anchor bolts 310 is embedded in, for example, the non-shrinkage concrete 330. The non-shrinkage concrete 330 is placed, for example, so as to cover only the compression anchor bolt 310 as shown in FIG. 9. The non-shrinkage concrete 330 may be placed so as to cover not only the compression anchor bolt 310 but also each component of the structure 100 as shown in FIG. 10.

[0048] The compression anchor bolt 310 is provided with irregularities (not shown) on its surface, for example. The irregularities provided on the compression anchor bolt 310 are, for example, in the shape provided on the surface of known deformed reinforcing bars or screw-threaded reinforcing bars. When the compression anchor bolt 310 is embedded in the blown concrete 330, the said irregularities engage with the blown concrete 330. Thereby, the force transmitted to the compression anchor bolt 310 is gradually transmitted to the blown concrete 330. Thereby, the compression anchor bolt 310 has a function of suppressing the bearing failure of the blown concrete 330.

[0049] The stopper 320 is provided at each end of the plurality of compression anchor bolts 310, and is provided at the end on the side of the column member 30. As shown in FIG. 11, the stopper 320 is provided across the ends of the plurality of compression anchor bolts 310 provided. In other words, one stopper 320 is provided for the plurality of compression anchor bolts 310. Note that the stopper 320 may be, for example, separable.

[0050] In order to transmit the horizontal force applied to the base plate 20 to the stopper 320, the structure between the stopper 320 and the base plate 20 is, for example, either of the following two forms. As a first form of the structure between the stopper 320 and the base plate 20, as shown in FIG. 12, a gap CL is provided between the stopper 320 and the base plate 20. The gap CL between the stopper 320 and the base plate 20 is filled with a packing material G.

[0051] A gap CL2 can be provided, for example, as shown in FIGS. 11 and 12, between the stopper 320 and the blown concrete 330. This makes it possible to transmit the force applied to the stopper 320 to the compression anchor bolt 310. Specifically, the force applied to the stopper 320 can be transmitted to the blown concrete 330 through the adhesive force between the compression anchor bolt 310 and the concrete. At this time, by adjusting the size of the gap CL2, it is possible to control the magnitudes of the portion transmitted to the blown concrete 330 as a bearing pressure and the portion transmitted to the blown concrete 330 as the adhesive force of the compression anchor bolt 310 among the shear resistances of the shear force reinforcing portion 200. In this way, by separating the modes of transmission to the blown concrete 330, it is possible to prevent the destruction from concentrating on a part of the blown concrete 330 and losing its resistance brittlely. Note that, as shown in FIG. 13, the gap CL2 may not be provided between the stopper 320 and the blown concrete 330.

[0052] In a front view, as shown in FIG. 17, the position of the compression anchor bolt 310 is preferably within the thickness range of the base plate 20. In other words, as shown in FIG. 18, it is not preferable for the position of the compression anchor bolt 310 to be outside the thickness range of the base plate 20, and it is preferable to take measures so that such a state does not occur. In a plan view, as shown in FIG. 11, the position of the compression anchor bolt 310 is preferably within the width range of the base plate 20.

[0053] As a second form of the structure between the stopper 320 and the base plate 20, as shown in FIG. 14, the stopper 320 abuts against the base plate 20. In the present embodiment, the contact surface between the stopper 320 and the base plate 20 is the same as that in the above-described first embodiment. That is, the contact surface between the stopper 320 and the base plate 20 is, for example, perpendicular. Or, the contact surface between the stopper 320 and the base plate 20 may be inclined, for example, such that the end face of the base plate 20 is located on the upper side. In addition, in the second form of the structure between the stopper 320 and the base plate 20, as shown in FIG. 14, a gap CL2 can be provided between the stopper 320 and the backfill concrete 330. Alternatively, as shown in FIG. 15, a gap CL2 may not be provided between the stopper 320 and the backfill concrete 330.

[0054] With the above-described configuration, each of the plurality of compression anchor bolts 310 abuts against the base plate 20 via the stopper 320. Thereby, the stopper 320 transmits the horizontal force applied to the base plate 20 to the compression anchor bolt 310. Further, each of the plurality of compression anchor bolts 310 resists the shear force SF by abutting against the base plate 20 via the stopper 320.

[0055] Note that the technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the present embodiment, the structure 100 has been described as being embedded in the concrete slab CS, but it may not be embedded. That is, the base plate 20, the shear force reinforcing portion 200, and each component located above them may be exposed on the lower structure 10. In addition, the configuration for transmitting the horizontal force applied to the base plate 20 to the shear force reinforcing portion 200 is not limited to the structure 100, and for example, as shown in FIG. 19, it may be used in the middle of the foundation beam 400 provided with a plurality of braces 40. In this case, a plurality of shear force reinforcing portions 200 may be provided with respect to the base plate 20. Further, in the second embodiment, the second shear force reinforcing portion may include a shear anchor instead of the compression anchor.

[0056] In addition, without departing from the spirit of the present invention, the components in the above-described embodiment can be appropriately replaced with well-known components, and the above-described modification examples can be appropriately combined.

Description of Reference Numerals

[0057] 10 Lower structure 20 Base plate 30 Column member 40 Brace 41 Gusset plate 100 Structure 200 Shearing force reinforcement part 210 Shearing force reinforcement plate 210s Shearing force bearing surface 220 Rib 300 Second shearing force reinforcement part 310 Compression anchor bolt 320 Stopper 330 Grouted concrete 400 Foundation beam B1 First anchor bolt B2 Second anchor bolt CF Compressive force CL Clearance CL2 Void CS Concrete slab FF Frictional force G Filler H Hoop reinforcement RF Rotational force SF Shearing force T Template T1 First template T2 Second template TC Connecting member TF Tensile force

Claims

1. A structure including a lower structure and a base plate fixed to the lower structure; A reinforcing structure; A system of structures comprising: The reinforcing structure includes a reinforcing member that is a reinforcing part that resists a horizontal force generated in the structure, The reinforcing member overlaps with the base plate when viewed along a horizontal direction, Further, an anchor bolt is provided to penetrate and fix the reinforcing member, A structural system characterized in that the direction opposite to the reinforcing direction of the reinforcing portion is not reinforced.

2. A structure including a lower structure and a base plate fixed to the lower structure; A reinforcing structure; A system of structures comprising: The reinforcing structure includes a reinforcing member that is a reinforcing part that resists a horizontal force generated in the structure, the reinforcing member is a plate-like member overlapping the base plate when viewed along a horizontal direction, A structural system characterized in that the direction opposite to the reinforcing direction of the reinforcing portion is not reinforced.

3. A gap is provided between the reinforcing portion and the base plate. A system of structures according to claim 1 or 2.

4. A filler is provided between the reinforcing portion and the base plate. A system of structures according to claim 1 or 2.

5. The reinforcing portion abuts against the base plate. A system of structures according to claim 1 or 2.

6. The structure further includes a first brace and a second brace each provided on the base plate, The first brace is provided on a first side, which is a predetermined side, of the base plate, The second brace is provided on a second side opposite to the first side, The reinforcing portion includes a first reinforcing portion provided on the first side and a second reinforcing portion provided on the second side. A system of structures according to claim 1 or 2.

7. The base plate is embedded in a concrete slab. A system of structures according to claim 1 or 2.

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