JP6566893B2 - Connection structure between substructure and superstructure and its construction method - Google Patents

Description

  The present invention relates to a connection structure between a lower structure and an upper structure and a construction method thereof, in particular, a lower structure in which an intermediate device is installed on the upper surface and an upper structure in which at least the lowermost part is a steel structure. The present invention relates to a connection structure between a lower structure and an upper structure, and a construction method of the connection structure between the lower structure and the upper structure.

  Conventionally, there has been known a structure in which a seismic isolation device is installed between the lower structure (corresponding to the lower foundation) and the upper structure constituting the building part in order to ensure the earthquake resistance and seismic isolation of the building. ing. For example, an upper foundation where the axial force from the through column and the horizontal force from the lower chord beam act on the bottom layer of a high-rise building that is an upper structure is installed, and laminated rubber as a seismic isolation device is installed in the lower structure An invention is disclosed in which a laminated rubber is disposed between an upper foundation and a seismic isolation device (see, for example, Patent Document 1).

JP-A-11-293945 (page 3-4, FIG. 1)

  The invention disclosed in Patent Document 1 (a seismic isolation structure for a high-rise building) changes a through column that is close to the outer column on the outer peripheral side among the through columns to a disconnected column that is not connected to the lower chord beam, and at the lower end of the connected beam. A diagonal member is installed, and on the outer peripheral side, the lower end of the diagonal member and the lower end of the outer column are connected to the upper foundation. Therefore, reduce the number of laminated rubber (same as the seismic isolation device) sandwiched between the upper foundation and the lower foundation (generally "foundation rising part" provided on the concrete foundation). In addition, the long-term axial force applied to the outer column is significantly increased, so that excessive pulling force is not generated in the laminated rubber disposed directly under the outer column, and the axial force shared by each through-column is met. In addition, a laminated rubber having an appropriate pressure receiving area can be disposed.

  However, in addition to Patent Document 1, in general, the axial force shared by each through-column is different, so the laminated rubber needs to set not only the pressure receiving area but also the height (number of laminated rubber plates, etc.) appropriately. There is. For this reason, in order to connect the upper foundation and the lower foundation directly to the upper and lower surfaces of the laminated rubber as the height of the laminated rubber fluctuates, the installation height is set according to the fluctuation of the height of the laminated rubber. It needs to be changed slightly. That is, a difference in the design thickness of the laminated rubber due to a difference in axial force for each through pillar, a manufacturing error in the thickness of the laminated rubber, and the like need to be estimated in advance in the height of the basic rising portion. For this reason, the construction of the foundation rising portion becomes complicated, leading to an extension of the construction period and an increase in cost.

  The present invention solves such a problem, and even if the height of an intermediate device such as a seismic isolation device fluctuates, it is not necessary to expect the fluctuation of the height to be the height of the basic rising portion. It is in providing the connection structure of a thing and a superstructure, and its construction method.

The connection structure between the lower structure and the upper structure according to the present invention includes an intermediate device installed on the upper surface of the lower structure, a connection port installed on the upper surface of the intermediate device, and the connection port And a superstructure comprising structural beams and structural columns,
The structural beam comprises a structural beam web, a structural beam lower flange and a structural beam upper flange respectively fixed to both side edges of the structural beam web,
The connection joint includes a joint lower member, a joint upper member, and a joint outer member,
The joint lower member comprises a joint lower plate installed on the upper surface of the intermediate device, and a joint lower pillar erected on the joint lower plate,
The joint upper member has a joint upper cylinder in which an inner surface faces an outer surface of the joint lower column and a lower end surface forms a gap between the upper surface of the joint lower plate, and an outer side of the joint upper cylinder. It comprises a joint diaphragm installed on the side surface and protruding outward, and a joint upper plate installed on the upper surface of the joint upper cylinder,
The spout outer member is connected to a spout web connected to the outer surface of the spout upper cylinder, a spout lower flange connected to the spout diaphragm outer surface, and the spout upper plate outer surface. It has a joint upper flange and a joint upper column connected to the upper surface of the joint upper plate,
The structure beam web is on the joint web, the structure beam lower flange is on the joint lower flange, the structure beam upper flange is on the joint upper flange, the structure column is on the joint upper column, Each connected
Mortar or concrete is filled between the outer side surface of the bottom column of the joint and the inner side surface of the top cylinder of the joint.

Further, mortar or concrete is filled between the upper surface of the bottom column of the joint and the bottom surface of the top plate of the joint.
Further, the connection joint is erected on the bottom column of the joint, and is screwed into the height adjustment screw rod that passes through a through hole formed in the joint upper plate, and the height adjustment screw rod, A height adjusting nut that cannot penetrate the through hole is provided.
Further, the connection joint is a height adjustment nut erected on the joint upper plate, and is screwed into the height adjustment nut, penetrating through a through hole formed in the joint upper plate, It is characterized by comprising a height adjusting bolt that comes into contact with the bottom column of the joint.
Furthermore, it has a leak prevention means for covering the gap and preventing leakage of the mortar or concrete.

The construction method of the connection structure between the lower structure and the upper structure according to the present invention is for connecting the lower structure with the intermediate device installed on the upper surface and the upper structure having the structure beam and the structure pillar. It is a construction method of a connection structure between a lower structure and an upper structure that is connected through a joint,
The structural beam comprises a structural beam web, a structural beam lower flange and a structural beam upper flange respectively fixed to both side edges of the structural beam web,
The connection joint includes a joint lower member, a joint upper member, and a joint outer member,
The spigot member is installed on a splicer lower plate that can be installed on the upper surface of the intermediate device, a spigot lower column that is erected on the spigot lower plate, and an upper end surface of the spigot lower column. Comprising an inner plate, a height adjusting screw rod standing on the inner plate, and a height adjusting nut screwed to the height adjusting screw rod,
The above-mentioned joint upper member has an inner side surface that can face the outer side surface of the above-mentioned joint lower column, and a lower end surface that can form a gap with the upper surface of the lower joint plate, and the above-mentioned upper joint tube A joint diaphragm installed on the outer surface of the joint, a joint upper plate installed on the upper surface of the joint upper cylinder, and formed on the joint upper plate, the height adjusting screw rod can be penetrated, The height adjustment nut comprises a through hole that cannot be penetrated,
The spout outer member is connected to a spout web connected to the outer surface of the spout upper cylinder, a spout lower flange connected to the spout diaphragm outer surface, and the spout upper plate outer surface. It has a joint upper flange and a joint upper column connected to the upper surface of the joint upper plate,
Placing the intermediate device on the lower structure by bringing the lower surface of the intermediate device into contact with the upper surface of the lower structure;
Contacting the lower surface of the lower joint plate with the upper surface of the intermediate device, and installing the lower joint member in the intermediate device;
Adjusting the position of the height adjustment nut so that the distance between the lower surface of the lower joint plate and the upper surface of the upper joint plate is a predetermined distance;
The inner surface of the upper pipe is opposed to the outer surface of the lower column of the joint, and the upper plate is placed on a height adjusting nut whose position is adjusted, and the upper plate is moved to the height. The process of installing on the screw adjusting screw rod;
Filling mortar or concrete between the outer side surface of the bottom column and the inner side surface of the upper cylinder;
The structural beam web to the joint web, the structural beam lower flange to the joint lower flange, the structural beam upper flange to the joint upper flange, the structure column to the joint upper column, And connecting each of them.

The connection structure between the lower structure and the upper structure according to the present invention includes an intermediate device installed in the lower structure, a connection port installed in the intermediate device, and an upper structure connected to the connection port The connection joint is provided with a joint lower member having a joint lower plate abutting against the intermediate device and a joint lower pillar erected on the joint lower plate, and a joint lower pillar. In the upper part of the joint, the upper part of the joint with the upper part of the joint, the mortar or concrete filled between the lower pillar of the joint and the upper part of the joint (hereinafter referred to as “mortar”). It is installed and has a joint outer member to which the upper structure is connected, and in the state where the vertical distance between the lower surface of the joint lower column and the upper surface of the joint upper cylinder is a predetermined distance (temporarily fixed) By filling mortar between the lower column and the upper cylinder, the upper member can be fixed (mainly fixed) to the lower member.
Therefore, even when the height of the intermediate device fluctuates, by adjusting the vertical distance between the lower surface of the joint lower column and the upper surface of the joint upper cylinder, it is possible to absorb such height variation, The flange on the structural beam can be arranged at a predetermined height (position) regardless of the variation in height. Furthermore, the rise of the foundation and the unevenness of the concrete foundation can be absorbed in this mechanism, and the accuracy control becomes easy.

  Moreover, the construction method of the connection structure between the lower structure and the upper structure according to the present invention includes the step of adjusting the position of the height adjustment nut, and installing the upper plate on the height adjustment screw rod (temporarily fixed). ) Step and a step of filling (fixing) mortar between the outer side surface of the bottom column of the joint and the inner side surface of the top tube of the joint. Therefore, even when the height of the intermediate device fluctuates, by adjusting the vertical distance between the bottom surface of the bottom column of the joint and the top surface of the top tube of the joint, the variation in the height is absorbed, The flange on the structural beam can be arranged at a predetermined height (position) regardless of the fluctuation.

It is a side view explaining the connection structure of the lower structure and upper structure which concern on Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The connection structure of the lower structure and upper structure which concerns on Embodiment 1 of this invention is demonstrated, Comprising: (a) is sectional drawing which shows the AA cross section in FIG. 1, (b) is FIG. Sectional drawing which shows the BB cross section in FIG. 1, (c) is a cross section which shows the CC cross section in FIG. BRIEF DESCRIPTION OF THE DRAWINGS The construction method of the connection structure of the lower structure and upper structure which concerns on Embodiment 2 of this invention is demonstrated, Comprising: (a) is a side view which shows a 1st process, (b) is a 2nd process. The side view showing the third step and (c) is a side view showing the fourth step. The construction method of the connection structure of the lower structure and upper structure which concerns on Embodiment 2 of this invention is demonstrated, Comprising: (a) is a side view which shows a 5th process, (b) is a 6th process. FIG. It is a side view which explains the connection structure of the lower structure and upper structure which concern on Embodiment 3 of this invention, Comprising: A reinforcement ring type. It explains the connection structure between the lower structure and the upper structure according to Embodiment 4 of the present invention, and (a) is a side view showing the height position outside adjustment type in the finish plate, (b). FIG. 5 is a side view showing an outside height type adjustment type in a joint diaphragm.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as “Embodiment 1” to “Embodiment 4”) will be described with reference to the drawings. Each drawing is schematically drawn, and the present invention is not limited to the illustrated form (the shape and number of parts). In addition, in order to avoid complication of the drawing, description of some members and some symbols may be omitted.

[Embodiment 1]
1 and 2 illustrate a connection structure between a lower structure and an upper structure according to Embodiment 1 of the present invention. FIG. 1 is a side view, and FIG. 2B is a cross-sectional view showing the BB cross section in FIG. 1, and FIG. 2C is a cross section showing the CC cross section in FIG. In FIG. 2, the description of some members (mortar) is omitted.

(Connection structure)
1 and 2, a connection structure (hereinafter referred to as “connection structure”) 100 between a lower structure and an upper structure is a foundation rising portion (corresponding to the lower structure) provided on a concrete foundation (not shown). 90, a seismic isolation device (corresponding to an intermediate device) 10 installed on the upper surface 90a, a connection joint 20 installed in the seismic isolation device 10, and an upper structure connected to the connection joint 20 (accurate (Part of the upper structure) 50. Hereinafter, each will be described in detail.

(Seismic isolation device)
The seismic isolation device 10 includes a cylindrical or columnar seismic isolation device deformation portion 13 that deforms and absorbs seismic energy when an earthquake occurs, and a circular seismic isolation device that is fixed to the lower end and the upper end of the seismic isolation device deformation portion 13, respectively. A lower plate 11 and a seismic isolation device upper plate 12 are provided.
Then, a through hole (not shown) formed in the base isolation device lower plate 11 is installed in the base startup portion 90 in a state where the lower surface of the base isolation device lower plate 11 is in contact with the upper surface 90a of the base startup portion 90. The seismic isolation device lower plate 11 (same as the seismic isolation device 10) is fixed to the foundation rising portion 90 by an installation nut 92 through which the bolt 91 passes and is screwed to the installation bolt 91.

  The present invention has been described with the lower structure as the basic rising portion 90 and the intermediate device as the seismic isolation device 10, but the present invention is not limited to this. The substructure may be a steel base instead of the RC base rising portion 90. Further, the present invention does not limit the structure of the seismic isolation device 10, for example, a sliding function that enables relative movement in the horizontal direction between the seismic isolation device lower plate 11 and the seismic isolation device upper plate 12. It may have a rolling function. Furthermore, the seismic isolation device lower plate 11 and the seismic isolation device upper plate 12 may be square or octagonal.

(Connection connection)
The connection joint 20 includes a joint lower member 20L, a joint upper member 20U, and a joint outer member 30.

(Unfinished material)
The joint lower member 20L includes a joint lower plate 21 installed on the seismic isolation device upper plate 12 of the seismic isolation device 10, a cylindrical joint lower column 22 erected on the joint lower plate 21, and a joint. The joint middle plate 23 installed on the upper end surface of the lower column 22, the height adjustment screw rod (same as the anchor) 95 erected on the joint middle plate 23, and the height screwed into the height adjustment screw rod 95 An adjustment nut 96 and a presser nut 97 are provided.
The lower joint member 20L is composed of a connection bolt 93 penetrating through a through hole (not shown) formed in the lower joint plate 21 and the seismic isolation device upper plate 12, and a connection nut 94 screwed into the connection bolt 93. It is installed in the seismic isolation device 10.

(Finished material)
The upper joint member 20U has an inner surface 24c that faces the outer surface 22d of the lower joint pillar 22 and a lower end surface that forms a gap G between the upper surface of the lower joint plate 21 and a joint upper member 24U. A joint diaphragm 25 installed on the outer surface 24 d of the cylinder 24 and projecting outward is provided, and a joint upper plate 26 opposed to the joint middle plate 23 and installed on the upper end face of the joint upper cylinder 24 is provided. Further, a through hole (hereinafter referred to as “mortar filling hole”) 27 for filling the mortar 40 and a height adjusting screw rod 95 can pass through the upper plate 26, and a height adjusting nut 96 and a presser nut are provided. 97 is provided with a through hole (not shown) that cannot be penetrated.

(Outside material)
The joint outer member 30 includes a joint web 34 connected to the outer surface 24d of the joint upper cylinder 24, a joint lower flange 35 connected to the outer surface 25d of the joint diaphragm 25, and the outer surface of the joint upper plate 26. The upper flange 36 connected to 26d, the upper column 37 connected to the upper surface 26a of the upper plate 26, and the upper surface of the lower plate 21 and the lower end surface of the upper cylinder 24 are formed. Leakage prevention means (hereinafter referred to as “seal cylinder”) 41 covering the gap G is provided. At this time, the lower joint flange 35 and the upper joint flange 36 are fixed to both side edges of the joint web 34, respectively, and a member having an H-shaped section is formed by these three members.
The inner side surface 25c of the joint diaphragm 25 is a “through diaphragm” that protrudes from the inner side surface 24c of the joint upper cylinder 24 in the direction of the joint lower column 22, but the present invention is not limited to this. Alternatively, an “outer diaphragm” in which the inner side surface 25 c of the mouthpiece diaphragm 25 is connected to the outer side surface 24 d of the mouthpiece upper cylinder 24 may be used.

(Height adjustment screw rod)
The height adjustment screw rod 95 passes through a through-hole (not shown) formed in the finish upper plate 26, and the height adjustment nut 96 and the presser nut 97 sandwich the upper and lower surfaces of the finish upper plate 26. Therefore, by adjusting the position of the height adjustment nut 96, the distance between the lower surface of the lower joint plate 21 and the upper surface of the upper joint plate 26, that is, the distance between the upper surface 90a of the basic rising portion 90 and the upper joint flange 36. Can be adjusted. Further, since there are a plurality of height adjustment screw rods 95, the level of the upper plate 26 can be increased by adjusting the position of the height adjustment nut 96 for each height adjustment screw rod 95.

(mortar)
The mortar 40 is filled between the lower joint member 20L and the upper joint member 20U. In the present invention, both mortar and concrete are representatively referred to as “mortar”.
Therefore, the force that acts between the lower joint member 20L and the upper joint member 20U, that is, the force that acts between the basic rising portion 90 that is the lower structure and the upper structure 50, passes through the mortar 40. Communicated. That is, the vertical force acting on the joint upper member 20U (or the joint lower member 20L) is mortar filled between the outer side surface 22d of the joint lower column 22 and the inner side surface 24c of the joint upper cylinder 24. 40 and the compression of the mortar 40 filled between the upper surface of the middle plate 23 and the lower surface of the upper plate 26 to the lower member 20L from the upper member 20U (or the lower member) 20L) to the upper end member 20U).
Since the sealing cylinder (corresponding to the leakage preventing means) 41 is disposed, the mortar 40 filled from the mortar filling hole 27 does not escape from the gap G during filling.

The leak prevention means is not limited to the seal cylinder 41 (for example, made of steel or paper) schematically illustrated, and is installed on the inner side surface 24c of the joint upper cylinder 24, and the joint lower column 22 is provided. A grout seal (grouting proof, see FIG. 6 (a)), an outer surface 22d of the bottom column 22 of the joint, an inner surface 24c of the top tube 24 and the bottom of the joint A seal sponge (see FIG. 6B) that is liquid-tightly in contact with the upper surface of the plate 21 may be used. Moreover, you may arrange | position the sealing cylinder 41 so that it may contact | abut to the inner surface 24c of the top end cylinder 24 (refer FIG. 5).
Further, in order to make the transmission of the shearing force more reliable, protrusions or protrusions may be provided on the outer side surface 22d of the joint lower column 22 and the inner side surface 24c of the joint upper tube 24 (not shown).

(Superstructure)
The upper structure 50 includes a structure beam 51 and a structure pillar (not shown) at the lower end.
The structural beam 51 has an H-shaped cross section, and includes a structural beam web 54, and a structural beam lower flange 55 and a structural beam upper flange 56 that are respectively fixed to both side edges of the beam web. The structural beam web 54 is connected to the joint web 34 via a connecting means (splice plate or the like) 64, and the structural beam lower flange 55 is connected to the bottom flange 35 via a connecting means (splice plate or the like) 65. The upper beam flange 56 is connected to the upper flange 36 via a connecting means (splice plate or the like) 66. Further, a structure pillar (not shown) is connected to the joint upper pillar 37.

(Function and effect)
As described above, the height of the connection joint 20 itself (same as the distance between the lower surface of the joint lower plate 21 and the upper surface of the joint upper plate 26) can be easily adjusted by adjusting the position of the height adjusting nut 96. Can be changed to. Therefore, even when the height of the seismic isolation device 10 (the same as the distance between the lower surface of the seismic isolation device lower plate 11 and the upper surface of the seismic isolation device upper plate 12) fluctuates, it is possible to absorb such height fluctuations. Thus, the distance between the upper surface 90a of the foundation rising portion 90 and the upper surface of the finish upper plate 26 (same as the position of the finish upper flange 36) can be made constant.
Therefore, the structural beam 51 (onai to the structural beam upper flange 56) can be arranged at a fixed position (same as the designed position) regardless of the height variation of the seismic isolation device 10.

In the above description, the distance between the upper surface 90a of the basic rising portion 90 and the upper surface of the finish plate 26 is set to be a constant distance, but the present invention is not limited to this, and the When the height (position) of the upper surface 90a is deviated from the reference height (same as the designed position), the height of the connection mouth 20 itself is set to the height of the seismic isolation device 10. The total deviation amount obtained by adding (or subtracting) the deviation amount of the upper surface 90a of the basic rising portion 90 to the deviation amount is adjusted so as to cancel out.
Although the seismic isolation device upper plate 12 and the lower joint plate 21 are connected by the connecting bolt 93 and the connecting bolt 94 as described above, the present invention is not limited thereto. And the bottom surface of the bottom plate 21 may be bonded with an adhesive.

[Embodiment 2]
3 and 4 illustrate a method for constructing a connection structure between a lower structure and an upper structure according to Embodiment 2 of the present invention. FIG. 3 (a) is a side view showing the first step. 3 (b) is a side view showing the second step and the third step, FIG. 3 (c) is a side view showing the fourth step, and FIG. 4 (a) is a side view showing the fifth step. FIG. 4B is a side view showing the sixth step. In addition, the same name and code | symbol are attached | subjected about the site | part same as Embodiment 1, and description is abbreviate | omitted. Hereinafter, each step will be described.

(Production of connection joints)
Prior to the construction at the construction site, the joint lower member 20L, the joint upper member 20U and the joint outer member 30 that form the connection joint 20 are manufactured in advance in the factory, that is, installed on the upper surface of the seismic isolation device 10. The bottom plate 21 is prepared, the bottom column 22 is erected on the bottom plate 21, the middle plate 23 is installed on the upper end surface of the bottom column 22, A height adjusting screw rod 95 is installed, and a height adjusting nut 96 and a presser nut 97 are screwed into the height adjusting screw rod 95 to form the lower end member 20L. The height adjusting screw rod 95 may be installed by welding or the like at the construction site in order to ensure horizontal accuracy.
In addition, a joint upper cylinder 24 is prepared in which the inner side surface 24c can be opposed to the outer surface 22d of the joint lower column 22 and the lower end surface can form a gap G with the upper surface of the joint lower plate 21. A joint diaphragm 25 projecting outward is installed on the outer surface 24 d of the upper cylinder 24, and a joint upper plate 26 is installed on the upper surface of the joint upper cylinder 24 to form the joint upper member 20 </ b> U. A mortar filling hole 27, which is a through hole for filling the mortar 40, is formed in the upper plate 26, the height adjusting screw rod 95 can be penetrated, and the height adjusting nut 96 and the presser nut 97 cannot penetrate. A through hole (not shown) is formed.
Further, a splicing web 34 is connected to the outer surface 24 d of the splicing upper cylinder 24, a splicing lower flange 35 is connected to the outer surface 25 d of the splicing diaphragm 25, and a splicing upper flange 36 is connected to the outer surface 26 d of the splicing upper plate 26. , And the upper flange 36 is connected to the upper surface 26a of the upper plate 26 to form the outer joint member 30. Thus, the connection mouth 20 is manufactured.

(S1: Installation of seismic isolation devices)
In FIG. 3A, the lower surface of the seismic isolation device lower plate 11 is brought into contact with the upper surface 90a of the foundation rising portion 90 to install the seismic isolation device 10 on the foundation rising portion 90 (first step). That is, an installation bolt 91 installed on the foundation rising portion 90 is passed through a through-hole (not shown) formed in the seismic isolation device lower plate 11, and an installation nut 92 is screwed onto the installation bolt 91. The plate 11 is pressed against the upper surface 90a of the basic rising portion 90.

(S2 and S3: Installation and height adjustment of the lower joint member)
In FIG. 3B, the bottom surface of the bottom plate 21 is brought into contact with the top surface of the seismic isolation device upper plate 12, and the bottom member 20L is installed in the seismic isolation device 10 (second step). That is, the connecting bolt 93 is passed through a through hole (not shown) formed in the lower joint plate 21 and the seismic isolation device upper plate 12, and the connecting nut 94 is screwed into the connecting bolt 93.
Then, the position of the height adjusting nut 96 is adjusted so that the distance between the upper surface 90a of the foundation rising portion 90 and the upper surface 26a of the top plate 26 becomes a predetermined distance (designed distance) (third step).

(S4: Temporary fixing of the upper member)
In FIG. 3C, the joint upper member 20U is temporarily fixed to the joint lower member 20L (fourth step). That is, the inner side surface 24c of the joint upper cylinder 24 is opposed to the outer side surface 22d of the joint lower column 22, and the height adjusting screw rod 95 is passed through a through-hole (not shown) formed in the joint upper plate 26 so as to be finished. The lower surface of the upper plate 26 is placed on a height adjusting nut 96 whose height is adjusted, and the upper surface of the finished upper plate 26 is pressed by a presser nut 97.

(S5: Final fixing of the upper part of the joint)
In FIG. 4A, the lower joint member 20L and the upper joint member 20U are permanently fixed (fifth step). That is, the seal cylinder 41 that closes the gap G is brought into contact with the outer surface 22d of the lower joint column 22 and the upper surface of the lower joint plate 21, so that the outer surface 22d of the lower joint column 22 and the upper tube 24 The mortar 40 is filled between the inner surface 24c. At this time, the mortar 40 is filled from the mortar filling hole 27, and the mortar 40 is also filled between the upper surface of the middle plate 23 and the lower surface of the upper plate 26. In addition, since the sealing cylinder 41 is installed, the mortar 40 does not escape from the gap G.

(S6: Connection of superstructure)
In FIG. 4B, the upper structure 50 is connected to the connection mouth 20 (sixth step). That is, the structural beam web 54 is connected to the joint web 34 via the connecting means (splice plate or the like) 64, and the structural beam lower flange 55 is connected to the lower joint flange 35 via the connecting means (splice plate or the like) 65. The structural beam upper flange 56 is connected to the joint upper flange 36 via a connecting means (splice plate or the like) 66. Further, a structure pillar (not shown) is connected to the joint upper pillar 37.

(Function and effect)
As described above, even if the seismic isolation device 10 has a variation in height, the connection joint 20 absorbs the variation in height, and the upper surface 90a of the foundation rising portion 90 and the upper surface of the joint upper plate 26 (The same as the position of the upper flange 36) can be a constant distance (designed distance).
In the above description, the distance between the upper surface 90a of the basic rising portion 90 and the upper surface of the finish plate 26 is set to be a constant distance, but the present invention is not limited to this, and the When the height (position) of the upper surface 90a is deviated from the reference height (same as the designed position), the height of the connection mouth 20 itself is set to the height of the seismic isolation device 10. The total deviation amount obtained by adding (or subtracting) the deviation amount of the upper surface 90a of the basic rising portion 90 to the deviation amount is adjusted so as to cancel out.
In addition, although the above has performed the process (S6) which connects an upper structure after the process (S5) which carries out the main fixing of the finishing member, this invention is not limited to this, A finishing member After the step of temporarily fixing (S4), first, the step of connecting the upper structure (S6) may be performed, and finally the step of fixing the upper end member (S5) may be performed.

[Embodiment 3]
FIG. 5 is a side view illustrating a connection structure between a lower structure and an upper structure according to Embodiment 3 of the present invention and showing a reinforcing ring type. In addition, it is in the process equivalent to the 4th process in Embodiment 2, Comprising: The same name and code | symbol are attached | subjected about the same site | part as Embodiment 1, and description is abbreviate | omitted.

(Reinforcing ring type)
In FIG. 5A, a connection structure (hereinafter referred to as “connection structure”) 200 between the lower structure and the upper structure is provided on the outer side surface 22d of the lower column 22 of the lower member 20L. A ring 42 is installed. Therefore, the shearing force acting on the mortar 40 is more reliably transmitted between the outer side surface 22d of the lower joint pillar 22 and the inner side surface 24c of the upper joint cylinder 24. Instead of the reinforcing outer peripheral ring 42, an intermittent projection may be provided on the outer side surface 22d. Further, a reinforcing inner peripheral ring or an intermittent projection (not shown) may be provided on the inner side surface 24c of the upper end cylinder 24. Good.
Further, as a leakage preventing means, the seal cylinder 41 is disposed so as to abut on the inner side surface 24c of the joint upper cylinder 24 and the upper surface of the joint lower plate 21, and the mortar 40 (not shown) is prevented from flowing out. The form and arrangement position of the leakage preventing means are not limited to this.

[Embodiment 4]
FIG. 6 illustrates a connection structure between a lower structure and an upper structure according to Embodiment 4 of the present invention, in which (a) is a side view showing a height position out-of-position adjustment type in the joint upper plate, (B) is a side view showing a height position outside adjustment type in the joint diaphragm. In addition, it is in the process equivalent to the 4th process in Embodiment 2, Comprising: The same name and code | symbol are attached | subjected about the same site | part as Embodiment 1, and description is abbreviate | omitted.

(Adjustment type outside the height position on the top plate)
6A, a connection structure 300 (hereinafter referred to as “connection structure”) 300 between the lower structure and the upper structure is formed on the upper plate 26 with the height adjusting screw rod 95 removed. The height adjusting nut 96 is fixed to the upper surface 26a of the finish upper plate 26 at the position of the through hole that is not. In place of the height adjustment screw rod 95, a height adjustment bolt 98 is screwed into the height adjustment nut 96.
Therefore, the third step of adjusting the position of the height adjusting nut 96 (see the second embodiment) is performed by replacing the height adjusting nut 96 with the upper surface 90a of the base rising portion 90 and the upper surface 26a of the joint upper plate 26. The position of the height adjusting bolt 98 is adjusted so that the distance becomes a predetermined distance (designed distance). Further, in the fourth step (see the second embodiment) for temporarily fixing the upper joint member 20U to the lower joint member 20L, the inner side surface 24c of the upper joint cylinder 24 is opposed to the outer side surface 22d of the lower joint pillar 22. The tip (lower end) of the height adjusting bolt 98 is brought into contact with the finishing middle plate 23.
In addition, rotation of the height adjusting bolt 98 may be prevented by screwing the presser nut 97 onto the height adjusting bolt 98 and pressing the height adjusting nut 96 with the presser nut 97. In the state where the inner side surface 24c is opposed to the outer side surface 22d of the joint lower column 22, that is, in the state where the joint upper member 20U is put on the joint lower member 20L, the height adjusting bolt is provided outside the joint lower member 20L. The position 98 can be adjusted (or finely adjusted).
As a leakage preventing means, a grout seal (same as grout proof) 43 is installed on the inner side surface 24c of the joint upper cylinder 24, and the tip of the grout seal 43 is in liquid-tight contact with the outer side surface 22d of the joint lower column 22. ing. Therefore, the flow of the mortar 40 (not shown) is prevented, but the means for preventing the flow of the mortar 40 (not shown) is not limited to the grout seal 43.

(Adjustment type outside the height position of the joint diaphragm)
In FIG. 6B, the connection structure (hereinafter referred to as “connection structure”) 400 between the lower structure and the upper structure 400 has a joint middle plate 23 in the connection structure 100 removed, and the height adjustment screw rod 95 is Instead of the middle plate 23, the lower plate 21 is erected. The height adjusting screw rod 95 passes through a through-hole (not shown) formed in the joint diaphragm 25.
Therefore, the temporary fixing (fourth step) between the lower joint member 20L and the upper joint member 20U is performed by passing the height adjustment screw rod 95 through a through-hole (not shown) formed in the joint diaphragm 25 in the third stroke. Then, the lower surface of the joint diaphragm 25 is placed on the height adjustment nut 96 whose height is adjusted, and the upper surface of the joint diaphragm 25 is pressed by the presser nut 97.
Then, in a state where the inner side surface 24c of the upper joint cylinder 24 is opposed to the outer side surface 22d of the lower joint pillar 22, that is, in a state where the upper joint member 20U is put on the lower joint member 20L, The position of the height adjustment nut 96 can be adjusted (or finely adjusted) on the outside.
The lower surface of the seismic isolation device upper plate 12 and the upper surface of the joint lower plate 21 are bonded by an adhesive (not shown). The upper plate 12 of the apparatus and the lower plate 21 may be connected.
Further, as a leakage preventing means, a seal sponge 44 is disposed so as to be in liquid-tight contact with the outer side surface of the lower joint plate 21, the inner side surface 24c of the upper joint tube 24 and the upper surface of the lower joint plate 21, respectively. Yes. Therefore, the flow of the mortar 40 (not shown) is prevented, but the means for preventing the flow of the mortar 40 (not shown) is not limited to the seal sponge 44.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those components and combinations thereof, and such modifications are also within the scope of the present invention. Of course, the substructure and the intermediate device are not limited to footings and seismic isolation devices, respectively.

  Since the present invention is as described above, an intermediate device having various functions is arranged between the lower structure and the upper structure, and can be widely used as a connection structure between the lower structure and the upper structure and a construction method thereof. .

10: Seismic isolation device 11: Seismic isolation device lower plate 12: Seismic isolation device upper plate 13: Seismic isolation device deformation part 20: Connection joint 20L: Joint lower member 20U: Joint upper member 21: Joint lower plate 22 : Bottom column 22d: outer side surface 23: inner plate 24: upper side tube 24c: inner side surface 24d: outer side surface 25: mouth diaphragm 25c: inner side surface 25d: outer side surface 26: upper side plate 26a: upper surface 26d: Outer side surface 27: Mortar filling hole 30: Outer member 34: Joint web 35: Lower flange 36: Upper flange 37: Upper column 40: Mortar 41: Seal cylinder (leak prevention means)
42: Reinforced outer ring 43: Grout seal (leak prevention means)
44: Seal sponge (leak prevention means)
50: Upper structure 51: Structure beam 54: Structure beam web 55: Structure beam lower flange 56: Structure beam upper flange 90: Foundation rising part 90a: Upper surface 91: Installation bolt 92: Installation nut 93: Connection bolt 94: Connection nut 95: Height adjustment screw rod 96: Height adjustment nut 97: Presser nut 98: Height adjustment bolt 100: Connection structure (connection structure) between the lower structure and the upper structure
200: Connection structure (connection structure) between the lower structure and the upper structure
300: Connection structure (connection structure) between the lower structure and the upper structure
400: Connection structure (connection structure) between the lower structure and the upper structure
G: Gap

Claims (6)

An intermediate device installed on the upper surface of the lower structure, a connection port installed on the upper surface of the intermediate device, and an upper structure connected to the connection port and having a structure beam and a structure column And
The structural beam comprises a structural beam web, a structural beam lower flange and a structural beam upper flange respectively fixed to both side edges of the structural beam web,
The connection joint includes a joint lower member, a joint upper member, and a joint outer member,
The joint lower member comprises a joint lower plate installed on the upper surface of the intermediate device, and a joint lower pillar erected on the joint lower plate,
The joint upper member has a joint upper cylinder in which an inner surface faces an outer surface of the joint lower column and a lower end surface forms a gap between the upper surface of the joint lower plate, and an outer side of the joint upper cylinder. It comprises a joint diaphragm installed on the side surface and protruding outward, and a joint upper plate installed on the upper surface of the joint upper cylinder,
The spout outer member is connected to a spout web connected to the outer surface of the spout upper cylinder, a spout lower flange connected to the spout diaphragm outer surface, and the spout upper plate outer surface. It has a joint upper flange and a joint upper column connected to the upper surface of the joint upper plate,
The structure beam web is on the joint web, the structure beam lower flange is on the joint lower flange, the structure beam upper flange is on the joint upper flange, the structure column is on the joint upper column, Each connected
A connection structure between a lower structure and an upper structure, wherein mortar or concrete is filled between an outer side surface of the lower column of the joint and an inner side surface of the upper cylinder of the joint.   The connection structure between the lower structure and the upper structure according to claim 1, wherein mortar or concrete is filled between an upper surface of the lower column of the joint and a lower surface of the upper plate of the joint.   The connection joint is erected on the bottom column of the joint, and is screwed into a height adjustment screw rod that passes through a through hole formed in the joint upper plate and the height adjustment screw rod. The connection structure between the lower structure and the upper structure according to claim 1, further comprising a height adjusting nut that cannot penetrate the hole.   The connection joint is a height adjustment nut erected on the joint upper plate, and is screwed into the height adjustment nut and passes through a through hole formed in the joint upper plate. The connection structure between the lower structure and the upper structure according to claim 1, further comprising a height adjustment bolt that contacts the lower column.   The connection structure between the lower structure and the upper structure according to any one of claims 1 to 4, further comprising leakage prevention means for covering the gap and preventing leakage of the mortar or concrete. A connection structure between the lower structure and the upper structure, in which the lower structure having the intermediate device installed on the upper surface and the upper structure including the structural beam and the structural pillar are connected via a connection joint. A construction method,
The structural beam comprises a structural beam web, a structural beam lower flange and a structural beam upper flange respectively fixed to both side edges of the structural beam web,
The connection joint includes a joint lower member, a joint upper member, and a joint outer member,
The spigot member is installed on a splicer lower plate that can be installed on the upper surface of the intermediate device, a spigot lower column that is erected on the spigot lower plate, and an upper end surface of the spigot lower column. Comprising an inner plate, a height adjusting screw rod standing on the inner plate, and a height adjusting nut screwed to the height adjusting screw rod,
The above-mentioned joint upper member has an inner side surface that can face the outer side surface of the above-mentioned joint lower column, and a lower end surface that can form a gap with the upper surface of the lower joint plate, and the above-mentioned upper joint tube A joint diaphragm installed on the outer surface of the joint, a joint upper plate installed on the upper surface of the joint upper cylinder, and formed on the joint upper plate, the height adjusting screw rod can be penetrated, The height adjustment nut comprises a through hole that cannot be penetrated,
The spout outer member is connected to a spout web connected to the outer surface of the spout upper cylinder, a spout lower flange connected to the spout diaphragm outer surface, and the spout upper plate outer surface. It has a joint upper flange and a joint upper column connected to the upper surface of the joint upper plate,
Placing the intermediate device on the lower structure by bringing the lower surface of the intermediate device into contact with the upper surface of the lower structure;
Contacting the lower surface of the lower joint plate with the upper surface of the intermediate device, and installing the lower joint member in the intermediate device;
Adjusting the position of the height adjustment nut so that the distance between the lower surface of the lower joint plate and the upper surface of the upper joint plate is a predetermined distance;
The inner surface of the upper pipe is opposed to the outer surface of the lower column of the joint, and the upper plate is placed on a height adjusting nut whose position is adjusted, and the upper plate is moved to the height. The process of installing on the screw adjusting screw rod;
Filling mortar or concrete between the outer side surface of the bottom column and the inner side surface of the upper cylinder;
The structural beam web to the joint web, the structural beam lower flange to the joint lower flange, the structural beam upper flange to the joint upper flange, the structure column to the joint upper column, Connecting each of them;
The construction method of the connection structure of the lower structure and the upper structure characterized by having.

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