JP6076927B2 - Upper foundation position adjustment method and jig - Google Patents

Description

  The present invention relates to a method for adjusting the position of an upper foundation and a jig used for adjusting the position of the upper foundation, and in particular, a structure placed on a sliding bearing disposed on the upper surface of a lower base. The present invention relates to a method and a jig for adjusting the position of an upper base for supporting an object with respect to the lower base by horizontally moving the upper base with respect to the lower base.

  Sliding bearings as seismic isolation devices are already known. This sliding bearing exerts a seismic isolation effect by allowing a structure placed on the sliding bearing to move horizontally with respect to a base disposed below when an earthquake occurs. On the other hand, after the earthquake stops, it is necessary to return the position of the structure relative to the base to the position before the earthquake occurred. In this way, an origin return means is required in a seismic isolation structure based on a sliding bearing, but conventionally, for example, an origin return device such as an actuator is installed below the structure, and the device is started after the earthquake ends and the origin is restored. I was going to do a return. However, the installation of the above-mentioned device increases the cost and requires labor for maintenance.

  On the other hand, it is possible to realize simple and inexpensive return to origin by using a position adjustment jig in the return to origin operation performed after the earthquake. As an example of the jig for returning to the origin, the jig described in Patent Document 1 can be cited.

  The jig described in Patent Document 1 includes a long rod having a threaded portion at least on one end side, a first engagement block that is screwed into the threaded portion of the long rod, and a long rod. A second engagement block which is rotatably mounted around its axis on the end side, blocking means for preventing the second engagement block from coming out from the other end of the long bar, and the long bar And a rotating means provided at the other end of the long bar for rotating the shaft around its axis. The first engagement block has a stepped portion that engages with one corner of the foundation and the building, and the second engagement block has the other corner of the foundation and the building. A stepped portion that engages with the portion.

  Then, with each engagement block engaged with the corresponding step, rotating the long bar around its axis reduces the distance between both engagement blocks, resulting in the position of the building relative to the foundation. Misalignment will be corrected. As described above, by using the jig described in Patent Document 1, even if the position of the building is shifted with respect to the foundation, the position of the building can be returned to the original position by a simple and inexpensive method. .

Japanese Patent No. 4019527

  By the way, when using the jig of Patent Document 1, the two engagement blocks described above are set to engage the foundation and the building, and the origin is restored by reducing the distance between the two engagement blocks in this state. . However, in the above-described method, a local load is applied to the engagement portion provided on the building side among the engagement portions with the engagement block, and the building may be damaged.

  Therefore, the present invention has been made in view of the above problems, and the object of the present invention is to provide a method for realizing an origin return operation performed while suppressing damage to a structure such as a building ( Position adjustment method) and a jig.

  Further, when the origin return operation is performed in a situation where a structure such as a building is already used, it is naturally necessary to perform the origin return operation so as not to hinder the use of the structure. Therefore, another object of the present invention is to perform the origin return operation so as not to hinder the use of the structure when the origin return operation is performed in a situation where a structure such as a building is already used. It is.

According to the method for adjusting the position of the upper base of the present invention, the upper base for the lower base is mounted on the sliding base disposed on the upper surface of the lower base, while the upper base for supporting the structure is placed. (A) The position of the upper foundation is positioned in a gap formed between the lower base and the upper foundation by arranging the sliding bearing. Inserting a jig for adjusting the position of the jig while maintaining a posture in which the tip of the jig can pass through the gap; and (B) the jig until the tip of the jig passes through the gap. After the tool is inserted into the gap, the attitude of the tip is switched, and the engaging portion provided on the tip is formed on one of both the lower base and the upper base. Engaging with the joint, and (C) the jig And a step of abutting a contact portion located on the opposite side of the gap with the contacted portion formed on the other of the both, and (D) the engagement While the part is engaged with the engaged part and the contact part is in contact with the contacted part, the operated part provided in the jig is operated to operate the jig in the jig. By shortening the interval between the engagement portion and the contact portion, the engagement portion approaches the contact portion while receiving the reaction force from the other at the contact portion. (E) in the step of inserting the jig into the gap, two extending portions extending in a state along each other; and (E) a step of horizontally moving the upper base with respect to the lower base; said jig having a connecting portion for connecting the front end portions to each other of the two extending portions on the tip, the two extending portions to each other Insert while maintaining the aligned position in the horizontal direction, said having a (F) wherein the engaging portion in the step of engaging the engaged portion is an upper portion extending from the bottom and said bottom upward Of the upper foundation, the bottom portion formed wider than the upper portion is used as the engaged portion, and the two extending portions are switched to a posture in which they are aligned in the vertical direction, and the two extending portions are The problem is solved by engaging the engagement portion with the bottom portion with the bottom portion interposed therebetween.
Further, according to the position adjustment method of the upper base of the present invention, the problem is that the upper base for structure support is placed on the sliding support disposed on the upper surface of the lower base, and the upper base for the structure is placed on the lower base. An upper foundation position adjusting method for adjusting the position of an upper foundation, wherein (A) the upper foundation is placed in a gap formed between the lower base and the upper foundation by disposing the sliding bearing. Inserting a jig for adjusting the position of the jig while maintaining a posture in which the tip of the jig can pass through the gap; and (B) until the tip of the jig passes through the gap. After the jig is inserted into the gap, the position of the tip is switched, and the engaging portion provided at the tip is formed on one of both the lower base and the upper base. Engaging the engaged portion; and (C) the treatment And a step of abutting a contact portion positioned on the opposite side of the engagement portion with the contacted portion formed on the other of the both, and (D) the engagement While the part is engaged with the engaged part and the contact part is in contact with the contacted part, the operated part provided in the jig is operated to operate the jig in the jig. By shortening the interval between the engagement portion and the contact portion, the engagement portion approaches the contact portion while receiving the reaction force from the other at the contact portion. And (E) in the step of bringing the abutting portion into contact with the abutted portion, the abutting portion is moved from the upper surface of the lower base. (F) The distance is shortened by operating the operated part. Accordingly, in the step of horizontally moving the upper base with respect to the lower base, the upper portion of the abutting portion reaches the position where the upper base comes into contact with a portion protruding above the upper surface of the lower base. It is solved by moving the foundation horizontally.

  In the above method, the jig is inserted into the gap formed between the lower base and the upper base, and when the tip of the jig passes through the gap, the attitude of the tip of the jig is switched, and the tip The engaging portion provided on the upper base is engaged with an engaged portion formed on one of the lower base and the upper base. In addition, the abutting portion that is located on the opposite side of the engagement portion in the jig is brought into contact with the abutted portion formed on the other of the lower base and the upper base. . Then, while the engaging portion is engaged with the engaged portion and the abutting portion is in contact with the abutted portion, the operated portion provided on the jig is operated to operate the engaging portion. And the distance between the contact portion and the contact portion are shortened. As a result, the upper foundation moves horizontally with respect to the lower base, and the position of the upper foundation returns to the original position. According to the above method, the position of the upper foundation with respect to the lower base can be returned to the original position by a simple and inexpensive method. Further, during the return to origin operation, the jig engages or contacts the lower base and the upper base, but does not directly contact the structure. Therefore, according to the above method, it is possible to perform the origin return operation while suppressing damage to the structure.

Further, with respect to the above-described method for adjusting the position of the upper foundation, in the step of inserting the jig into the gap, two extending portions extending in a state along each other and tip portions of the two extending portions The jig having a connecting portion for connecting them to each other at the tip end portion is inserted while maintaining the posture in which the two extending portions are aligned in the horizontal direction, and the engaging portion is engaged with the engaged portion. In the combining step, among the upper foundations having a bottom portion and an upper portion extending upward from the bottom portion, the bottom portion formed wider than the upper portion is used as the engaged portion, and the two It is good also as switching the attitude | position with which one extension part was mutually located in the perpendicular direction, and engaging the said engaging part with the said bottom part in the state which pinched | interposed the said bottom part between the said two extension parts.
In the above method, since the engaging portion of the jig is engaged with the bottom portion of the upper foundation with the bottom portion of the upper foundation sandwiched between the two extending portions provided at the tip portion of the jig, The engaged state can be suitably maintained.

In the above-described method for adjusting the position of the upper base, in the step of bringing the abutting portion into contact with the abutted portion, a wall surface formed along the vertical direction on the lower base is used as the abutting portion. The surface of the plate body may be brought into contact with the wall surface so that the upper portion of the plate body forming the contact portion protrudes upward from the upper surface of the lower base.
In the above method, the plate body can appropriately receive the reaction force from the lower base on the surface thereof. Further, the plate body abuts against the wall surface of the lower base with its upper portion protruding above the upper surface of the lower base. In other words, the area of the plate body that protrudes above the upper surface of the lower base is defined as a reference position for adjusting the position of the upper base, so that the origin return operation can be performed more accurately. It becomes possible.

In the above-described method for adjusting the position of the upper base, in the step of horizontally moving the upper base with respect to the lower base, a through hole formed in the plate body having a tip fixed to the engaging portion. In the rod-shaped member passing therethrough, a nut fitted to a screw forming portion formed in a portion passing through the through hole and located on the side opposite to the engaging portion is used as the operated portion, and the nut is rotated in the extending direction of the rod-shaped member that is moved on the thread forms minute, it is also possible to shorten the interval.
In the above method, the upper base is moved to the lower base by rotating the nut fitted to the screw forming part formed in the part located on the opposite side of the engaging part through the through hole in the rod-like member. Move horizontally relative to. In this way, when performing the return to origin, it is only necessary to rotate the nut, and the return to origin operation can be performed easily.

In the above-described method for adjusting the position of the upper base, the surface of the plate body has a rectangular shape, and the through hole is formed at a position shifted from the central position in the longitudinal direction of the surface of the plate body. In the case, in the step of horizontally moving the upper base with respect to the lower base, the plate body is held in a state where the longitudinal direction is along the vertical direction and the through hole is located above the center position. It is good also as being done.
In the above method, when the nut is rotated, the center of gravity of the plate body is positioned below the through hole through which the rod-shaped member passes. With this configuration, even if the nut is rotated, it is possible to suppress the plate body from rotating in conjunction with the nut.

In the above-described method for adjusting the position of the upper foundation, when the structure is a building, in the step of inserting the jig into the gap, the jig is inserted into the gap from the outdoor side of the building. In the step of inserting and horizontally moving the upper base with respect to the lower base, the operated portion located outdoors may be operated outdoors.
In the above method, each of the step of inserting a jig into the gap and the step of operating the operated portion of the jig to move the upper base relative to the lower base are performed on the outdoor side. . Therefore, even if the return to origin operation is performed in a situation where the building as a structure is already used, the above method can be used without entering the room and without hindering the use of the building. It is possible to perform home return work.

Further, according to the jig of the present invention, the above-mentioned problem is that the upper foundation for supporting the structure is placed on the lower base in a state where the upper foundation for supporting the structure is placed on the sliding support arranged on the upper surface of the lower base. A jig for horizontally moving the upper base relative to the lower base, and (A) provided at the tip of the jig, in both the lower base and the upper base An engaging portion that engages with the engaged portion formed on one side, (B) an abutting portion that contacts an abutting portion formed on the other of the two, and (C) the jig in the jig An operated portion that is operated to shorten an interval between the engaging portion and the contact portion, and (D) the two extending portions that extend in a state along each other and a part and a connecting portion for connecting the front end portions to each other of the two extending portions, extending from the bottom and said bottom upward Among the upper foundation having the the upper portion, engaged with the bottom portion of the bottom portion which is wider than the upper portion as the engaged portion, (E1) the jig, the sliding bearings are The two extending portions are arranged in a horizontal direction in a gap formed between the lower base and the upper base by being arranged, and the tip portion maintains a posture in which the tip portion can pass through the gap. (E2) After the jig is inserted into the gap until the tip passes through the gap, the posture of the tip is changed to a posture in which the two extending portions are aligned in the vertical direction. by is switched, the engaging portion of said bottom in a state sandwiched between the two extending portions are engaged with said bottom, (E3) said abutment, said the engaging portion In contact with the contacted part with the gap positioned on the opposite side And, (E4) the engaging portion is engaged with the bottom portion, and wherein while the contact portion is in contact with the abutted portion, that said interval is operated portion is operated to shorten Thus, it is solved by bringing the engaged portion closer to the abutted portion while receiving the reaction force from the other at the abutting portion.
Further, according to the jig of the present invention, the above-mentioned problem is that the upper foundation for supporting the structure is placed on the lower base in a state where the upper foundation for supporting the structure is placed on the sliding support arranged on the upper surface of the lower base. A jig for horizontally moving the upper base relative to the lower base, and (A) provided at the tip of the jig, in both the lower base and the upper base An engaging portion that engages with the engaged portion formed on one side, (B) an abutting portion that contacts an abutting portion formed on the other of the two, and (C) the jig in the jig (D1) The jig is arranged such that the sliding bearing is disposed, and the operated base is operated to shorten the interval between the engaging portion and the contact portion. In the gap formed with the upper foundation, the posture that the tip can pass through the gap is maintained. (D2) After the jig is inserted into the gap until the tip passes through the gap, the attitude of the tip is switched, so that the engaging portion is engaged. (D3) The contact portion is positioned on the opposite side of the engagement portion with the gap therebetween and protrudes upward from the upper surface of the lower base. (D4) The operated portion is operated while the engaging portion is engaged with the engaged portion and the abutting portion is in contact with the contacted portion. As the distance is shortened, the upper base is formed in a portion of the contact portion that protrudes above the upper surface of the lower base while receiving the reaction force from the other at the contact portion. The problem is solved by bringing the engaged part closer to the abutted part until it reaches the abutting position.
If it is said jig | tool, it will become possible to return the position of the upper foundation with respect to a lower base to the original position by suppressing a structure further by a simple and cheap method.

  According to the method and jig for adjusting the position of the upper foundation of the present invention, the position of the upper foundation with respect to the lower base is returned to the original position while further suppressing damage to the structure by a simple and inexpensive method. It becomes possible. In addition, even if the home return work is performed in a situation where the building as a structure is already in use, the work is performed on the outdoor side without entering the house, so there is no hindrance to the use of the building. It is possible to perform home return work.

It is a figure which shows the seismic isolation structure using a sliding bearing. It is an exploded view of the jig concerning one embodiment of the present invention. It is explanatory drawing regarding the adjustment method of the position of the upper foundation which concerns on one Embodiment of this invention. It is a figure which shows the procedure about the adjustment method of the position of the upper foundation which concerns on one Embodiment of this invention (the 1). It is a figure which shows the procedure about the adjustment method of the position of the upper foundation which concerns on one Embodiment of this invention (the 2). It is a figure which shows the procedure about the adjustment method of the position of the upper foundation which concerns on one Embodiment of this invention (the 3). It is a figure which shows the procedure about the adjustment method of the position of the upper foundation which concerns on one Embodiment of this invention (the 4). It is a figure which shows the adjustment method of the position of the upper foundation which concerns on a 1st modification. It is a figure which shows the adjustment method of the position of the upper foundation which concerns on a 2nd modification.

  Hereinafter, an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings. In addition, about drawing, in order to make explanation easy to understand, each member is illustrated in a slightly simplified (schematic) form, and the size and dimensions of each member shown in the drawing are also different from actual ones. .

  In the following description, a detached house is taken as an example of a structure. However, a detached house is merely an example of a structure, and the present invention can also be applied to other buildings, for example, buildings in buildings, commercial facilities, or other structures (device installation stand). .

  In the present embodiment, in the seismic isolation structure in which the seismic isolation device 1 made of a sliding bearing is interposed between the upper base 2 and the lower base 3 (hereinafter referred to as the base seismic isolation structure), the upper base 2 is moved downward by the earthquake The present invention relates to a method for returning the position of the upper foundation 2 to the original position when it is displaced in the horizontal direction with respect to the base 3 (hereinafter referred to as “origin return method”).

  More specifically, the origin return method according to the present embodiment corresponds to the method for adjusting the position of the upper foundation according to the present invention, and the position of the upper foundation 2 is changed to the position shown in the upper diagram of FIG. It is used when the position changes from the previous position) to the position shown in the lower figure of the figure (hereinafter, the position after displacement). In addition, the origin return method according to the present embodiment is based on a case where a detached house that uses a base-isolated structure has already been used (in other words, a person already lives in a detached house). After the earthquake, the jig of the present invention (specifically, the jig 4 described later) is used.

  First, the base-isolated structure will be described. The seismic isolation device 1 is configured by a known sliding bearing including a laminated plate 1a that can be displaced by the occurrence of an earthquake. The laminated board 1a is being fixed to the upper base 2 and the lower base 3 via the flange plate 1b, respectively. In addition, the sliding bearing which employ | adopted laminated rubber instead of the laminated board 1a may be sufficient.

  The upper foundation 2 is a foundation that supports a detached house, and includes a foundation footing 2a as a bottom portion and a foundation beam 2b that rises in a vertical direction from the center of the upper surface of the foundation footing 2a. The foundation footing 2a has a rectangular cross-sectional shape, is wider than the foundation beam 2b, and the seismic isolation device 1 is disposed immediately below the foundation footing 2a. In other words, in the upper foundation 2, the foundation footing 2 a is placed on the upper surface of the seismic isolation device 1. The foundation beam 2b corresponds to an upper portion extending upward from the foundation footing 2a, and has a rectangular cross-sectional shape that is long in the vertical direction. And the housing frame 10 (for example, pillar material) of the house is supported on the upper surface of the foundation beam 2b.

  The lower base 3 is a foundation slab, and the seismic isolation device 1 is disposed on the upper surface thereof. In the present embodiment, a plurality of seismic isolation devices 1 are arranged on the upper surface of the lower base 3 in a dispersed state. Moreover, the lower base 3 is provided with the wall surface 3a along the vertical direction in the side end. As shown in the left diagram of FIG. 1, the wall surface 3 a is in a position aligned with the side end surface of the foundation footing 2 a in the horizontal direction in a state where the upper foundation 3 is located at the position before displacement. In other words, the wall surface 3a of the lower base 3 defines the normal position of the upper base 2 and functions as a reference surface when performing origin return.

  Next, a jig 4 (hereinafter, this jig) 4 used in the origin return method according to the present embodiment will be described with reference to FIGS. The jig 4 is a jig for adjusting the position of the upper foundation 2 with respect to the lower base 3 by horizontally moving the upper foundation 2 placed on the seismic isolation device 1 with respect to the lower base 3. is there. The jig 4 includes a plurality of parts as shown in FIG.

  In the return to origin operation, the jig 4 has a tip portion in a gap S formed between the lower base 3 and the upper base 2 by arranging the seismic isolation device 1 as shown in FIG. Used in the inserted state. When the operator operates a predetermined portion (specifically, a nut 9 as an operated portion described later) in the jig 4 in the state shown in FIG. 3, the upper base 2 is moved with respect to the lower base 3. As a result, the upper foundation 2 returns to the position before displacement from the position after displacement.

  Hereinafter, the configuration of the jig 4 will be described with reference to FIG. As shown in FIG. 2, the jig 4 is a rectangular shape having a U-shaped bowl-shaped plate 5, a rod-shaped member 6 whose tip is fixed to the bowl-shaped plate 5, and a through hole 7 a through which the rod-shaped member 6 passes. It has a plate 7, a nut 9 screwed into the rod-like member 6, and a washer 8 disposed between the rectangular plate 7 and the nut 9.

  The bowl-shaped plate 5 is made of a somewhat thick steel plate and is provided at the tip of the jig 4. In the present embodiment, the thickness of the bowl-shaped plate 5 is slightly smaller than the length (height) of the gap S between the upper base 2 and the lower base 3. The structure of the bowl-shaped plate 5 will be further described. Two extending portions 5a and 5b extending in a state along each other, and a connecting portion 5c for connecting tip portions of the two extending portions 5a and 5b, Is provided. Here, one of the two extending portions 5a and 5b is longer than the other, and a rod-like member 6 is joined to the end thereof by welding. About the space | interval of the two extension parts 5a and 5b, it is good in it being the length substantially the same as the height of the basic footing 2a, or one length larger than the said height.

  When performing the return to origin, the bowl-shaped plate 5 is engaged with an engaged portion formed on one of both the lower base 3 and the upper base 2. More specifically, in the origin return method according to the present embodiment, as shown in FIG. 3, the side end portion of the foundation footing 2a between the two extending portions 5a and 5b, strictly speaking, a detached house. Put the end of the side located under the floor. In such a state, the bowl-shaped plate 5 has an upper corner portion (strictly speaking, at an angle formed by the extension portion 5a and the connection portion 5c which are located above the two extension portions 5a and 5b. Engages the corners on the side located under the floor. That is, the bowl-shaped plate 5 functions as an engaging portion that engages with the basic footing 2a at an angle formed by the extending portion 5a and the connecting portion 5c that are further upward. Further, the upper corner of the basic footing 2a corresponds to the engaged portion.

  The rod-shaped member 6 is made of a long metal rod, and a helical thread is formed on the outer surface of the rod-shaped member 6 so as to extend from one end to the other end of the rod-shaped member 6. In other words, the rod-shaped member 6 is a screw forming portion 6a in which the thread is formed from one end of the outer surface to the other end.

  The rectangular plate 7 is made of a metal thick plate (corresponding to a plate body), and includes a through hole 7a penetrating along the thickness direction. The through hole 7a is formed at a position slightly deviated from the center position in the longitudinal direction of the surface 7b of the rectangular plate 7 having a rectangular shape. Strictly speaking, the through hole 7a is deviated from the center position in the longitudinal direction of the surface 7b, and is formed at a position substantially coincident with the center position in the lateral direction.

  The rectangular plate 7 is used in a state where the rod-like member 6 is inserted into the through hole 7a formed at a predetermined position when the origin is returned. More specifically, when returning to the origin, the rectangular plate 7 is in a state in which the rod-like member 6 is inserted into the through hole 7a as shown in FIG. 3, and the longitudinal direction of the rectangular surface 7b is vertical. The surface 7b is in contact with the wall surface 3a of the lower base 3 in a state along the direction. That is, the rectangular plate 7 functions as a contact portion, and the wall surface 3a of the lower base 3 corresponds to a contacted portion.

  As shown in FIG. 3, the nut 9 is a portion that passes through the through-hole 7 a (strictly speaking, a bowl-shaped plate sandwiching the rectangular plate 7) in a state where the rod-like member 6 is inserted into the through-hole 7 a of the rectangular plate 7. 5) (the part located on the opposite side to 5). Here, the portion that has passed through the through hole 7a is a screw forming portion 6a having a thread formed on the outer surface thereof. A nut 9 is screwed onto the screw forming portion 6a and is rotatably attached. When the operator rotates the nut 9 with a wrench or the like, the nut 9 moves on the screw forming portion 6 a along the extending direction of the rod-like member 6. That is, the nut 9 functions as an operated part that receives an operation of the operator in the jig 4.

  Further, when the nut 9 rotates and moves on the screw forming portion 6a, the seating surface of the nut 9 contacts the back surface of the rectangular plate 7 (the surface opposite to the surface 7b contacting the wall surface 3a of the lower base 3). When in contact, the nut 9 presses the rectangular plate 7 through the washer 8. Further, at this time, if the bowl-shaped plate 5 is engaged with the upper corner portion of the basic footing 2 a and the rectangular plate 7 is in contact with the wall surface 3 a of the lower base 3, the main body is moved along with the movement of the nut 9. The distance (indicated by symbol d in FIG. 3) between the bowl-shaped plate 5 and the rectangular plate 7 in the tool 4 is shortened.

  That is, when the nut 9 is rotated in the above state, the portion of the rod-like member 6 passing through the through hole 7a is gradually increased, and the distance d between the bowl-like plate 5 and the rectangular plate 7 is increased. Is shortened. At this time, since the rectangular plate 7 is in contact with the wall surface 3 a of the lower base 3 and strictly pressed, the rectangular plate 7 receives a reaction force from the lower base 3. On the other hand, when the distance d is shortened, the upper foundation 2 is horizontal with respect to the lower base 3 so that the upper corner of the foundation footing 2 a engaged with the rectangular plate 7 approaches the wall surface 3 a of the lower base 3. To move.

  The nut 9 is continuously rotated until the side end surface of the foundation footing 2a and the wall surface 3a of the lower base 3 are aligned in the horizontal direction, and the horizontal movement of the upper foundation 2 with respect to the lower base 3 is continued. Returning to the origin is performed according to the procedure described above, and the return to origin operation is finished when the side end surface of the basic footing 2a and the wall surface 3a of the lower base 3 are finally aligned in the horizontal direction.

  Next, a procedure for performing return to origin using the jig 4 configured as described above will be described with reference to FIGS. 4A to 4D. First, the jig 4 is prepared for starting the return to origin. At the time of starting the return to origin, the rectangular plate 7, the washer 8, and the nut 9 are removed from the rod-shaped member 6 as shown in FIG. 4A. In other words, at the time of starting the return to origin, only the bowl-shaped plate 5 and the rod-shaped member 6 of the jig 4 are used.

  More specifically, in performing the return to origin, the jig 4 (hereinafter referred to as a jig base), which has only the bowl-shaped plate 5 and the rod-shaped member 6, is placed in the gap S (strictly speaking, in the gap S, the The seismic device 1 is inserted from the outdoor side into a region outside the region where the seismic device 1 is disposed. At this time, the jig base is inserted into the gap S from the tip portion, and further, the tip portion is held in a posture capable of passing through the gap S.

  More specifically, as shown in FIG. 4A, while the bowl-shaped plate 5 is in a sideways position, that is, while the two extending portions 5a and 5b provided in the bowl-shaped plate 5 are maintained in a horizontal direction. The jig base is inserted into the gap S. With this posture, the thickness of the bowl-shaped plate 5 is smaller than the height of the gap S, so that the jig base can pass through the gap S.

  The operator holds the jig base until the tip of the jig base passes through the gap S. Strictly speaking, the shorter extension portion 5a in the bowl-shaped plate 5 passes through at least the gap S. Insert into the gap S. Thereafter, the operator rotates the rod-shaped member 6 around its axis as shown in FIG. 4B to switch the position of the tip of the jig base, that is, the bowl-shaped plate 5. By this operation, the posture of the bowl-shaped plate 5 is switched from the lying position to the standing posture, that is, the posture in which the two extending portions 5a and 5b included in the bowl-shaped plate 5 are aligned in the vertical direction.

  Further, the operator performs an operation of slightly pulling the jig base toward the front side (outdoor side) after setting the posture of the bowl-shaped plate 5 to the standing posture. Thereby, the bowl-shaped plate 5 comes to engage with the upper corner of the basic footing 2a as shown in FIG. 4B. At this time, the bowl-shaped plate 5 engages with the upper corner portion of the basic footing 2a with the side end portion of the basic footing 2a sandwiched between the two extending portions 5a and 5b. In this way, by sandwiching the side end portion of the foundation footing 2a between the two extending portions 5a and 5b, it is possible to stabilize the engagement state between the bowl-shaped plate 5 and the foundation footing 2a during the return to origin operation. It becomes. In addition, if the side end portion of the basic footing 2a is sandwiched between the two extending portions 5a and 5b, it becomes possible to take a reaction force when the nut 9 is subsequently rotated, and the rotation of the nut 9 Accordingly, it is possible to suppress the accompanying movement of the bowl-shaped plate 9.

  Thereafter, the rectangular plate 7 is attached to a free end portion of the rod-like member 6 that is not inserted into the gap S, that is, a portion that protrudes more outdoors than the gap S. Specifically, the rectangular plate 7 is attached by passing the free end portion of the rod-shaped member 6 through the through hole 7 a of the rectangular plate 7. As a result, the main jig 4 is provided with the rectangular plate 7, and the rectangular plate 7 is positioned on the opposite side of the main jig 4 with the gap S between the bowl-shaped plate 5.

  Further, the operator slides the rectangular plate 7 along the rod-shaped member 6 and moves it to a position where the surface 7 b of the rectangular plate 7 is pressed against the wall surface 3 a of the lower base 3. As a result, as shown in FIG. 4C, the surface 7 b of the rectangular plate 7 comes into contact with the wall surface 3 a of the lower base 3. In the present embodiment, the rectangular plate 7 is brought into contact with the wall surface 3a of the lower base 3 so that the longitudinal direction of the surface 7b of the rectangular plate 7 is along the vertical direction.

  In the present embodiment, as shown in FIG. 4C, the rectangular plate 7 is brought into contact with the wall surface 3 a of the lower base 3 so that the upper portion of the rectangular plate 7 protrudes upward from the upper surface of the lower base 3. Furthermore, in the present embodiment, the rectangular plate 7 is placed on the lower base 3 so that the through hole 7a is positioned above the center position in the longitudinal direction of the surface 7b of the rectangular plate 7 (indicated by a cross in FIG. 4C). It is made to contact | abut to the wall surface 3a. That is, in the present embodiment, the rectangular plate 7 comes into contact with the wall surface 3a of the lower base 3 with its center of gravity positioned below the through hole 7a.

  When the bowl-shaped plate 5 engages with the upper corner of the base footing 2a and the rectangular plate 7 comes into contact with the wall surface 3a of the lower base 3 at the surface 7b, in this state, the rod-shaped member 6 is free. A washer 8 and a nut 9 are fitted from the end side. The washer 8 abuts on the back surface of the rectangular plate 7 at the seating surface, and the nut 9 abuts on the surface of the washer 8 on the side opposite to the seating surface in contact with the rectangular plate 7.

  When the above steps are completed, preparation for return to origin is completed. Then, while the bowl-shaped plate 5 is engaged with the upper corner of the basic footing 2a and the rectangular plate 7 is in contact with the wall surface 3a of the lower base 3 at the surface 7b, the operator shows in FIG. 4D. Then, the nut 9 is rotated using a wrench or the like. As a result, the nut 9 moves on the screw forming portion 6 a formed on the outer surface of the rod-shaped member 6 along the extending direction of the rod-shaped member 6. In addition, since the nut 9 is located outdoors, the rotation operation with respect to the nut 9 is performed outdoors.

  Further, when the nut 9 is rotated, the rectangular plate 7 that is in contact with the wall surface 3a of the lower base 3 is in a state where the center of gravity is positioned below the through hole 7a. Therefore, even if the operator rotates the nut 9, it is possible to prevent the rectangular plate 7 from rotating (so-called rotation) in association with the nut 9.

  Then, by rotating the nut 9 and moving it on the screw forming portion 6a, the distance d between the bowl-shaped plate 5 and the surface 7b of the rectangular plate 7 is shortened. As a result, while the reaction force from the lower base 3 is received by the rectangular plate 7, the upper foundation 2 is moved horizontally with respect to the lower base 3 so that the upper corner of the foundation footing 2 a approaches the wall surface 3 a of the lower base 3. It becomes possible. In the present embodiment, the upper foundation 2 is horizontally moved in a direction in which the upper foundation 2 is pulled out to the outdoor side (direction indicated by an arrow in FIG. 2).

  As described above, when the upper foundation 2 moves horizontally with respect to the lower base 3, the upper foundation 2 comes to the original position (that is, the position before displacement). The upper foundation 2 repeats horizontal movement until the side end face of the foundation footing 2a and the wall surface 3a of the lower base 3 are aligned in the horizontal direction. In other words, the operator repeats the rotation operation on the nut 9 until the upper foundation 2 reaches the original position.

  In the present embodiment, the rectangular plate 7 is in contact with the wall surface 3 a of the lower base 3 in a state of protruding somewhat upward from the upper surface of the lower base 3. Therefore, a portion of the surface 7 b of the rectangular plate 7 that protrudes above the upper surface of the lower base 3 is defined as a reference position for adjusting the position of the upper base 2. That is, when the upper foundation 2 is moved horizontally and returned to the original position, the upper foundation 2 is moved until the side end face of the foundation footing 2a comes into contact with the upper protruding portion of the surface 7b of the rectangular plate 7. Just do it. This makes it possible to perform more accurate return to origin.

  As described above, in the present embodiment, a series of steps relating to return to the origin is performed outside the detached house, that is, outdoors. As a result, even if a home-return operation is performed in a situation where a detached house is already in use, the home-return operation should be performed without entering the indoors and without affecting the use of the detached house. Is possible.

<< Other Embodiments >>
In the above embodiment, the upper foundation position adjusting method and the jig used for adjusting the position of the upper foundation according to the present invention have been described with an example. However, the above embodiment is for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  Further, the material, shape, dimension, and arrangement position of each part of the jig described in the above embodiment are merely examples, and these can be freely designed as long as the configuration of the present invention is satisfied. For example, the shape and size of the engaging portion formed at the tip of the jig can be freely designed as long as it can be suitably engaged with the engaged portion.

  In the above embodiment, when the rectangular plate 7 is brought into contact with the wall surface 3a located at the side end of the lower base 3 and the upper base 2 is moved horizontally with respect to the lower base 3, as shown in FIG. Then, the reaction force from the wall surface 3a of the lower base 3 is received. That is, in said embodiment, although it was decided to take reaction force on the outer side (outdoor side) of a detached house, it is not limited to this. For example, as shown in FIG. 5, it is good also as providing the grooved pit 3b in the part located under the floor of a house in the lower base 3, and making the rectangular plate 7 contact | abut on the side wall surface 3c of the said grooved pit 3b. That is, the reaction force may be taken indoors.

  In the case shown in FIG. 5, the rectangular plate 7 is brought into contact with the side wall surface 3 c of the groove-like pit 3 b provided in the lower base 3 at a portion located under the floor of the house. On the other hand, in the case shown in FIG. 5, the bowl-shaped plate 5 is engaged with the upper corner portion of the basic footing 2 a located on the outdoor side. Then, in the case shown in FIG. 5, the rectangular plate 7 is in contact with the side wall surface 3c of the groove-like pit 3b, and the nut is in the state in which the hook-like plate 5 is engaged with the upper corner on the outdoor side of the foundation footing 2a. When 9 is rotated, the upper foundation 2 moves horizontally with respect to the lower base 3 in a direction (indicated by an arrow in FIG. 5) in which the upper foundation 2 is drawn indoors. In FIG. 5, members having the same reference numerals as those in FIG. 2 are members similar to those in the above-described embodiment (case shown in FIG. 2).

  Moreover, in said embodiment, this jig | tool 4 is inserted in the clearance gap S between the lower base 3 and the upper foundation 2, and it is hook-like in the upper corner | angular part of the upper foundation 2 in the position nearest from the said insertion location. Although the plate 5 is engaged, the present invention is not limited to this. For example, as shown in FIG. 6, a case using a jig 104 that is longer than the jig according to the above-described embodiment (the main jig 4) can be considered. In such a case, when the jig 104 is inserted into the gap S, the bowl-shaped plate 5 is taken out from the take-out position that is located under the floor of the house and is opposite to the insertion place. In the case shown in FIG. 6, the bowl-shaped plate 5 is to be engaged with the upper corner portion of the upper base 2 located closest to the take-out location. In FIG. 6, members having the same reference numerals as those in FIG. 2 are members similar to those in the above-described embodiment (case shown in FIG. 2).

DESCRIPTION OF SYMBOLS 1 Seismic isolation device (sliding support), 1a Laminated plate 1b Flange plate, 2 Upper foundation 2a Foundation footing, 2b Foundation beam 3 Lower base, 3a Wall surface 3b Groove pit, 3c Side wall surface 4 This jig, 5 Bowl-shaped plate 5a , 5b Extension part, 5c Connection part 6 Bar-shaped member, 6a Screw formation part 7 Rectangular plate (contact part, plate body)
7a Through hole, 7b Surface 8 Washer, 9 Nut 10 Housing, 104 Jig S gap

Claims (9)

An upper foundation position adjusting method for adjusting a position of the upper foundation with respect to the lower base in a state where an upper foundation for supporting a structure is placed on a sliding support disposed on an upper surface of the lower base,
A jig for adjusting the position of the upper base is placed in a gap formed between the lower base and the upper base by arranging the sliding support, and a tip of the jig is the gap. Inserting while maintaining a posture capable of passing through;
After the jig is inserted into the gap until the tip of the jig passes through the gap, the attitude of the tip is switched and the engaging portion provided at the tip is moved to the lower base. And engaging the engaged portion formed on one of both of the upper bases;
A step of contacting a contact portion located on the opposite side of the engagement portion with the engagement portion in the jig with a contacted portion formed on the other of the two;
By operating the operated portion provided in the jig while the engaging portion is engaged with the engaged portion and the contact portion is in contact with the contacted portion, By shortening the interval between the engagement portion and the contact portion in the jig, the engaged portion approaches the contacted portion while receiving the reaction force from the other at the contact portion. And horizontally moving the upper foundation with respect to the lower base,
In the step of inserting the jig into the gap, the distal end portion has two extending portions extending in a state along each other and a connecting portion that connects the distal end portions of the two extending portions. The jig is inserted while maintaining the posture in which the two extending portions are aligned in the horizontal direction ,
In the step of engaging the engaging portion with the engaged portion, the upper base having a bottom portion and an upper portion extending upward from the bottom portion is formed wider than the upper portion. The bottom portion is the engaged portion, the two extending portions are switched to a posture in which they are aligned in the vertical direction, and the engaging portion is placed in a state where the bottom portion is sandwiched between the two extending portions. A method for adjusting the position of an upper foundation, wherein the upper base is engaged with the bottom. An upper foundation position adjusting method for adjusting a position of the upper foundation with respect to the lower base in a state where an upper foundation for supporting a structure is placed on a sliding support disposed on an upper surface of the lower base,
A jig for adjusting the position of the upper base is placed in a gap formed between the lower base and the upper base by arranging the sliding support, and a tip of the jig is the gap. Inserting while maintaining a posture capable of passing through;
After the jig is inserted into the gap until the tip of the jig passes through the gap, the attitude of the tip is switched and the engaging portion provided at the tip is moved to the lower base. And engaging the engaged portion formed on one of both of the upper bases;
A step of contacting a contact portion located on the opposite side of the engagement portion with the engagement portion in the jig with a contacted portion formed on the other of the two;
By operating the operated portion provided in the jig while the engaging portion is engaged with the engaged portion and the contact portion is in contact with the contacted portion, By shortening the interval between the engagement portion and the contact portion in the jig, the engaged portion approaches the contacted portion while receiving the reaction force from the other at the contact portion. And horizontally moving the upper foundation with respect to the lower base,
In the step of bringing the abutting part into contact with the abutted part, the abutting part is brought into contact with the abutted part in a state of protruding upward from the upper surface of the lower base,
In the step of horizontally moving the upper base with respect to the lower base by shortening the interval by operating the operated part, the upper part of the contact part protrudes above the upper surface of the lower base. A method for adjusting the position of the upper foundation, wherein the upper foundation is moved horizontally until reaching a position where the upper foundation comes into contact with a portion. In the step of inserting the jig into the gap, the distal end portion has two extending portions extending in a state along each other and a connecting portion that connects the distal end portions of the two extending portions. The jig is inserted while maintaining the posture in which the two extending portions are aligned in the horizontal direction,
In the step of engaging the engaging portion with the engaged portion, the upper base having a bottom portion and an upper portion extending upward from the bottom portion is formed wider than the upper portion. The bottom portion is the engaged portion, the two extending portions are switched to a posture in which they are aligned in the vertical direction, and the engaging portion is placed in a state where the bottom portion is sandwiched between the two extending portions. 3. The method of adjusting the position of the upper foundation according to claim 2 , wherein the upper base is engaged with the bottom. In the step of bringing the abutting portion into contact with the abutted portion, a wall surface formed along the vertical direction on the lower base is used as the abutting portion, and the upper portion of the plate body forming the abutting portion The position adjustment of the upper foundation according to any one of claims 1 to 3 , wherein the surface of the plate body is brought into contact with the wall surface so that the upper surface protrudes upward from the upper surface of the lower base. Method. In the step of horizontally moving the upper base with respect to the lower base, the rod passes through the through hole in a rod-like member having a tip fixed to the engaging portion and passing through the through hole formed in the plate body. Then, a nut fitted in a screw forming portion formed on a portion located on the side opposite to the engaging portion is used as the operated portion, and the nut is rotated along the extending direction of the rod-shaped member. wherein by moving the upper thread forms minute, position adjustment method of the upper foundation according to claim 4, characterized in that to shorten the interval Te. In the case where the surface of the plate body has a rectangular shape and the through hole is formed at a position deviated from the center position in the longitudinal direction of the surface of the plate body, the upper base with respect to the lower base in the step of horizontally moving said along the longitudinal direction in the vertical direction, and, according to claim 5, wherein the plate member in a state in which the through hole is positioned above said center position is held To adjust the position of the upper foundation. In the case where the structure is a building,
In the step of inserting the jig into the gap, the jig is inserted into the gap from the outdoor side of the building,
In the step of horizontally moving the upper foundation with respect to the lower base, the operated portion that is located in the outdoor to any one of claims 1 to 6, characterized in that operating in the outdoor The method for adjusting the position of the upper foundation as described. With the upper base for supporting the structure placed on the sliding support disposed on the upper surface of the lower base, the upper base is moved horizontally with respect to the lower base to position the upper base with respect to the lower base. A jig for adjusting,
An engaging portion that is provided at a tip portion of the jig and engages with an engaged portion formed on one of both the lower base and the upper base;
A contact part that contacts the contacted part formed on the other of the two;
An operated part that is operated to shorten the interval between the engaging part and the contact part in the jig;
The engaging portion includes two extending portions that extend in a state along each other and a connecting portion that connects tip portions of the two extending portions, and extends upward from the bottom portion. Of the upper base having an upper part that is taken out, the bottom part formed wider than the upper part is engaged with the bottom part as the engaged part,
In the jig, the two extending portions are arranged in a horizontal direction in the gap formed between the lower base and the upper base by arranging the sliding support, and the tip portion is in the horizontal direction. Inserted while maintaining a posture that can pass through the gap,
After the jig until the tip passes through the gap is inserted into the gap, by the two extending portions are switched posture of the tip to the aligned position in the vertical direction from each other, the The engaging portion engages the bottom portion with the bottom portion sandwiched between the two extending portions,
The contact portion is in contact with the contacted portion in a state where the contact portion is located on the opposite side of the engagement portion with respect to the gap,
While the engagement portion is engaged with the bottom portion and the contact portion is in contact with the contacted portion, the operated portion is operated to shorten the interval, thereby the contact. A jig characterized by bringing the engaged portion closer to the abutted portion while receiving a reaction force from the other at the portion. With the upper base for supporting the structure placed on the sliding support disposed on the upper surface of the lower base, the upper base is moved horizontally with respect to the lower base to position the upper base with respect to the lower base. A jig for adjusting,
An engaging portion that is provided at a tip portion of the jig and engages with an engaged portion formed on one of both the lower base and the upper base;
A contact part that contacts the contacted part formed on the other of the two;
An operated part that is operated to shorten the interval between the engaging part and the contact part in the jig;
The jig is inserted into a gap formed between the lower base and the upper base by arranging the sliding support while maintaining a posture in which the tip can pass through the gap.
After the jig is inserted into the gap until the tip passes through the gap, the position of the tip is switched, so that the engaging portion engages with the engaged portion,
The contact portion is positioned on the opposite side of the gap with the engagement portion, and is in contact with the contacted portion in a state of protruding upward from the upper surface of the lower base,
While the engaging portion is engaged with the engaged portion and the contact portion is in contact with the contacted portion, the operated portion is operated to shorten the interval, While being subjected to the reaction force from the other at the contact portion, the engaged portion is reached until the upper base comes into contact with a portion of the contact portion that protrudes above the upper surface of the lower base. A jig that moves a part closer to the contacted part.

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