JP5284915B2 - Structure moving method and building - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a structure moving method for moving a structure supported by seismic isolation, and a building having a structure moved by the structure moving method.

  If there is residual deformation in the seismic isolation layer of the base isolation building due to an earthquake, or there is residual deformation in the laminated rubber as a base isolation device that supports the roof of the base isolation building (hereinafter referred to as “superstructure”) In such a case, it is required to eliminate or reduce the residual deformation generated in the seismic isolation layer and the laminated rubber by moving the upper structure laterally after the earthquake has stopped.

  One reason for this is the problem of performance degradation of laminated rubber. When residual deformation occurs in the laminated rubber 322 as shown in the front view of FIG. 18A, a large strain is locally generated in the laminated rubber 322. Then, as shown in the front view of FIG. 18B, if the residual deformation generated in the laminated rubber 322 is left untreated, the laminated rubber is in a state where a large strain is locally generated and the upper structure It will continue to receive horizontal stress along with its own weight Q for a long time. As a result, there is a concern about damage such as rubber breakage of the laminated rubber 322 and deterioration of the performance and durability of the laminated rubber 322 as a seismic isolation device.

  Another reason is the safety problem of the seismic isolation layer of the base isolation building. If the next earthquake occurs with residual deformation remaining in the seismic isolation layer or laminated rubber, it may be possible to exceed the seismic isolation layer clearance or the limit deformation of the laminated rubber assumed in the design.

  In addition, due to changes in the size of the seismic isolation layer clearance, it becomes impossible to install a grating that covers this clearance, and the aesthetic appearance is impaired due to misalignment of the upper structure or misalignment of the expansion part of the seismic isolation layer. It becomes a problem.

  In consideration of the performance degradation of laminated rubber and the safety against the occurrence of the next earthquake, it is generally preferred that the residual deformation of the seismic isolation layer be kept within 50 mm. The allowable residual deformation is determined to be approximately 50 mm.

  In particular, when an isolation device composed of a sliding bearing and laminated rubber, such as an elastic sliding bearing, is provided in the seismic isolation layer, the residual deformation that occurs in the laminated rubber and the seismic isolation layer tends to increase. There is an increasing need to eliminate or reduce the residual deformation caused in the laminated rubber and seismic isolation layer by laterally moving the superstructure.

  As shown in FIG. 19, in the seismic isolation bearing device 300 of Patent Document 1, an attachment plate 304 is attached to the lower end surface of the laminated rubber body 302, and the attachment plate 304 is fixed on the foundation 306.

  The laminated rubber body 302 is formed by alternately laminating thin reinforcing steel plates 308 and rubber layers 310. Further, a sliding material 314 is attached to the upper end portion of the laminated rubber body 302 via a thick reinforcing steel plate 312, and a low friction layer formed on the lower surface of the interposition body 318 fixed to the upper structure 316. A sliding member 314 is slidably in contact with 320.

  Therefore, when a microearthquake occurs in the foundation 306, relative sliding displacement does not occur between the low friction layer 320 and the sliding material 314 due to the frictional force between the low friction layer 320 and the sliding material 314. The vibration transmitted to the upper structure 316 is attenuated by the shear deformation of the rubber body 302.

  In addition, when a relatively large earthquake occurs on the foundation 306, a relative slip displacement is generated between the low friction layer 320 and the sliding material 314, and frictional heat due to the slip displacement and shear deformation of the laminated rubber body 302 are generated. And the vibration transmitted to the upper structure 316 is damped.

  As described above, since the seismic isolation bearing device 300 of Patent Document 1 exhibits a seismic isolation effect by causing relative sliding displacement between the low friction layer 320 and the sliding material 314, the seismic isolation bearing device 300 is provided. It is considered that a large residual deformation occurs in the seismic isolation layer provided with

  However, it is technically difficult to laterally move a structure that is seismically supported, such as an upper structure, by a conventional method. For example, when this structure is moved laterally by pushing the entire structure supported by seismic isolation with a jack, a jack having a large capacity and a large number of jacks are required. This problem is particularly prominent when the seismically isolated structure is a heavy structure, which makes it difficult to implement in practice.

JP-A-9-310408

  In consideration of such facts, the present invention provides a structure moving method capable of moving a structure supported by seismic isolation regardless of the weight or scale of the structure, and a structure moved by the structure moving method. It aims at providing the building which has a thing.

  The invention according to claim 1 is a structure moving method in which an upper structure supported on a lower structure is moved via a seismic isolation device in which a rubber body and a sliding bearing are arranged in series in the vertical direction. The sliding bearing includes a structure-side sliding member fixed to the upper structure or the lower structure, and a rubber-body-side sliding member fixed to the rubber body and contacting the structure-side sliding member, A lateral force is applied to the rubber body side sliding member by the applying means.

  In the first aspect of the invention, the upper structure is supported on the lower structure via the seismic isolation device. The seismic isolation device has a configuration in which a rubber body and a sliding bearing are arranged in series in the vertical direction. The sliding bearing includes a structure-side sliding member and a rubber body-side sliding member. The structure-side sliding member is fixed to the upper structure or the lower structure. The rubber body side sliding member is fixed to the rubber body and is in contact with the structure side sliding member. Then, the upper structure is moved by applying a lateral force to the rubber body side sliding member by the force applying means.

  Here, a restoring force resulting from the shear deformation is generated in the rubber body in which the shear deformation has occurred. This restoring force acts as a reaction force on the superstructure (hereinafter referred to as “restoring reaction force”). Moreover, when the restoring reaction force generated from all the rubber bodies supporting the upper structure is balanced, the upper structure is in a stationary state.

  Therefore, by applying a lateral force to the rubber body side sliding member by the applying means, the magnitude and direction of the restoring force generated from the rubber body to which the force is applied are changed. Thereby, the balance state of the restoring reaction force changes, and the upper structure moves laterally with respect to the lower structure until a new balance state is reached.

  Further, the sliding deformation function of the sliding bearing can be utilized (sliding the rubber body side sliding member with respect to the structure side sliding member) to move the rubber body side sliding member (changing the shear deformation state of the rubber body). Since it is only necessary to apply a certain amount of force laterally by the applying means, an applying means with a small applied force can be used.

  That is, since a force larger than the frictional force generated on the contact surface between the rubber body side sliding member and the structure side sliding member may be applied in the lateral direction, individual seismic isolation devices ( A means of applying force according to the friction force generated in the sliding bearing (= friction coefficient of the contact surface between the rubber body side sliding member and the structure side sliding member × vertical load supported by each seismic isolation device) Can be used.

  Further, the force applied by the force applying means does not have to be applied to all the rubber bodies (rubber body side sliding members) supporting the upper structure at the same time. The upper structure can be moved relative to the structure. For example, if the superstructure moved due to an earthquake or the like is to be completely returned to its original position, it is necessary to apply force to all rubber bodies (rubber body side sliding members) at least once. For this purpose, it is only necessary to sequentially apply force to each rubber body (rubber body side sliding member) while changing the force applying means.

  As a result, the structure (superstructure) supported by seismic isolation can be moved regardless of the weight or scale of the structure.

  According to the second aspect of the present invention, the direction of the force applied to the rubber body side sliding member by the force applying means is the center position of the rubber body side sliding member before the force is applied by the force applying means, and the upper structure. Is a direction connecting the center position of the rubber-body-side sliding member disposed with respect to the structure-side sliding member when the is moved to a predetermined position.

  In the second aspect of the present invention, the rubber-side sliding member before the force is applied by the applying means and the structure-side sliding member when the upper structure is moved to a predetermined position. The direction connecting the center position of the rubber body side sliding member is the direction of the force applied to the rubber body side sliding member by the force applying means.

  By applying force in such a direction by the force applying means, the upper structure can be moved or brought closer to a predetermined position. Further, when residual deformation occurs in the rubber body, the residual deformation generated in the rubber body can be eliminated or reduced.

  According to a third aspect of the present invention, when the upper structure is moved to a predetermined position, the center position of the rubber body side sliding member arranged with respect to the structure side sliding member is the structure side sliding member. It coincides with the center position of in plan view.

  In the invention described in claim 3, when the upper structure is moved to a predetermined position, the center position of the rubber-body-side sliding member arranged with respect to the structure-side sliding member is defined as the center position of the structure-side sliding member. The positions coincide with each other in plan view.

  As a result, the upper structure can be moved or brought closer to a normal design position where the seismic isolation device is arranged to support the upper structure at the center of the structure-side sliding member.

  According to a fourth aspect of the present invention, when the upper structure is moved to a predetermined position, the force applying means is provided once at the center position of the rubber body side sliding member arranged with respect to the structure side sliding member. The center of the rubber body side sliding member is moved by the applied force.

  In the invention according to claim 4, when the upper structure is moved to a predetermined position with a single force applied by the force applying means, the rubber body-side slip member is arranged at the center position of the structure-side slide member. The center of the rubber body side sliding member is moved.

  Thereby, the upper structure can be moved or brought closer to a predetermined position. Further, when residual deformation occurs in the rubber body, the residual deformation generated in the rubber body can be eliminated or reduced.

  According to a fifth aspect of the present invention, after the lateral force is applied to the rubber body side sliding member by the force applying means, the rubber body side sliding member is fixed to the structure side sliding member.

  According to the fifth aspect of the present invention, after applying a lateral force to the rubber body side sliding member by the applying means, the rubber body side sliding member is fixed to the structure side sliding member.

  Accordingly, it is possible to prevent the upper surface or the lower surface of the rubber body side sliding member from slipping with respect to the lower surface or the upper surface of the structure side sliding member after applying a lateral force to the rubber body side sliding member by the applying means. That is, since it is possible to prevent a reduction in the amount of shear deformation of the rubber body due to the sliding of the upper surface or the lower surface of the rubber body side sliding member, it is possible to prevent the restoring force of the rubber body from changing (decreasing).

  According to the sixth aspect of the present invention, a frictional force generated on a contact surface between the structure-side sliding member and the rubber-body-side sliding member after a lateral force is applied to the rubber-body-side sliding member by the force applying means. Enlarge.

  According to the sixth aspect of the present invention, the frictional force generated on the contact surface between the structure-side sliding member and the rubber-body-side sliding member is increased after a lateral force is applied to the rubber-body-side sliding member by the applying means.

  Thus, the amount of sliding of the upper surface or lower surface of the rubber body side sliding member relative to the lower surface or upper surface of the structure side sliding member after applying a lateral force to the rubber body side sliding member by the applying means can be reduced. . That is, since it is possible to reduce the decrease in the shear deformation amount of the rubber body due to the sliding of the upper or lower surface of the rubber body-side sliding member, it is possible to reduce the change in the restoring force of the rubber body.

  In the invention according to claim 7, when a lateral force is applied to the rubber body side sliding member by the force applying means, a frictional force generated on a contact surface between the structure side sliding member and the rubber body side sliding member is generated. Make it smaller.

  According to the seventh aspect of the present invention, a lateral force is applied to the rubber body-side sliding member by the applying means in a state where the frictional force generated on the contact surface between the structure-side sliding member and the rubber body-side sliding member is reduced.

  Accordingly, the rubber body side sliding member can be moved with a small lateral force. That is, it is possible to use a force applying means that exerts a smaller lateral force.

  According to an eighth aspect of the present invention, a lateral force is simultaneously applied to the rubber body side sliding member of all or a part of the rubber body supporting the superstructure by the force applying means.

  In the invention according to the eighth aspect, all or a part of the rubber body that supports the superstructure is the target of the force applied by the force applying means. A lateral force is simultaneously applied to all of the rubber body side sliding members fixed to these rubber bodies by the force applying means. As a result, the time taken to move the superstructure can be shortened.

  According to the ninth aspect of the present invention, a lateral force is applied to the rubber body side sliding members of all the rubber bodies supporting the upper structure by the force applying means.

  In the invention described in claim 9, all the rubber bodies that support the superstructure are to be applied by the applying means. Then, a lateral force is applied to all of the rubber body side sliding members fixed to these rubber bodies by a force applying means. Thereby, the upper structure can be moved or brought closer to a predetermined position. Further, when residual deformation occurs in the rubber body, the residual deformation generated in the rubber body can be eliminated or reduced.

  According to a tenth aspect of the present invention, the seismic isolation device is an elastic sliding bearing.

  In invention of Claim 10, the support capability and seismic isolation capability as a seismic isolation device can be obtained reliably by making an isolation device into an elastic sliding bearing.

  According to an eleventh aspect of the present invention, the seismic isolation device is an elasto-plastic sliding bearing.

  In the invention described in claim 11, by making the seismic isolation device an elastoplastic sliding bearing, it is possible to reliably obtain the support capability and the seismic isolation capability as the seismic isolation device, and the elastoplastic sliding bearing is plastically deformed. By absorbing vibration energy, the amount of movement of the upper structure in the lateral direction relative to the lower structure during an earthquake can be reduced.

  According to a twelfth aspect of the present invention, the upper structure is a large-scale structure.

  In the invention described in claim 12, since the upper structure which is a large-scale structure has a large weight, it is technically difficult to move it in the lateral direction by the conventional method. For example, when this superstructure is moved by pushing the entire superstructure, which is a large-scale structure, with a jack, considering the structure of the seismic isolation layer of a general seismic isolation building, It is predicted that about 10% loading capacity will be required for jacks. That is, an excessively large jack or an excessive number of jacks is required, so that it is difficult to actually carry out.

  On the other hand, in the structure moving method according to claim 12, the slip deformation function of the slide bearing is utilized (the upper surface or the lower surface of the rubber body-side slide member is slid with respect to the lower surface or the upper surface of the structure-side slide member. Therefore, it is only necessary to apply a force that can move the rubber body-side sliding member (change the shear deformation state of the rubber body) to the rubber body-side sliding member by the applying means. Can be used.

  That is, since a force larger than the frictional force generated on the contact surface between the rubber body side sliding member and the structure side sliding member may be applied in the lateral direction, individual seismic isolation devices ( A means of applying force according to the friction force generated in the sliding bearing (= friction coefficient of the contact surface between the rubber body side sliding member and the structure side sliding member × vertical load supported by each seismic isolation device) Can be used.

  Furthermore, the force applied by the force applying means does not have to be applied to all the rubber bodies (rubber body side sliding members) supporting the upper structure at the same time. The upper structure can be moved relative to the structure. For example, if the superstructure moved due to an earthquake or the like is to be completely returned to its original position, it is necessary to apply force to all rubber bodies (rubber body side sliding members) at least once. For this purpose, it is only necessary to sequentially apply force to each rubber body (rubber body side sliding member) while changing the force applying means.

  Thus, even a large-scale structure having a large weight can be moved.

  A thirteenth aspect of the present invention is a building having the upper structure moved by the structure moving method according to any one of the first to twelfth aspects.

  In invention of Claim 13, the building which has a superstructure which can be moved irrespective of a weight or a scale can be constructed | assembled.

  Since the present invention is configured as described above, a structure moving method capable of moving the structure supported by seismic isolation regardless of the weight or scale of the structure, and a structure moved by the structure moving method. A building having objects can be provided.

It is an elevational view showing a building according to the first embodiment of the present invention. It is a front view which shows the elastic sliding bearing which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the mechanism in which a residual deformation | transformation arises in the seismic isolation layer and laminated rubber which concern on the 2nd Embodiment of this invention. It is explanatory drawing which shows the deformation | transformation direction of laminated rubber when a residual deformation | transformation arises in the seismic isolation layer which concerns on the 2nd Embodiment of this invention. It is explanatory drawing which shows the deformation | transformation direction of laminated rubber when a residual deformation | transformation arises in the seismic isolation layer which concerns on the 2nd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 2nd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 2nd Embodiment of this invention. It is an AA arrow line view of FIG. It is explanatory drawing which shows the moving method of the structure based on the 2nd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 2nd Embodiment of this invention. It is an elevational view showing a building having a concrete-shrinked upper building according to a second embodiment of the present invention. It is explanatory drawing which shows the moving method of the structure based on the 2nd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 3rd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 3rd Embodiment of this invention. It is a perspective view which shows the external thread which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the fixing member which concerns on the 3rd Embodiment of this invention. It is explanatory drawing which shows the moving method of the structure based on the 4th Embodiment of this invention. It is a front view which shows the conventional laminated rubber. It is a front view which shows the conventional seismic isolation bearing apparatus.

  A structure moving method and a building according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, an example in which the present invention is applied to a reinforced concrete structure is shown. However, a steel structure, a steel reinforced concrete structure, a CFT structure (Concrete-Filled Steel Tube), and a mixed structure thereof. It can be applied to buildings of various structures and scales.

  First, a first embodiment of the present invention will be described.

  As shown in the elevation view of FIG. 1, the building 10 includes a reinforced concrete upper building 12 as an upper structure, a reinforced concrete foundation 16 as a lower structure provided on the ground 14, and a foundation 16. And the seismic isolation layer 18 provided between the upper building 12 and the upper building 12.

  In the seismic isolation layer 18, a plurality of elastic sliding bearings 20 are arranged as a seismic isolation device, and the upper building 12 is supported on the foundation 16 via these elastic sliding bearings 20. Although only four elastic sliding bearings 20 are illustrated in FIG. 1, any building in which the upper building 12 is supported on the foundation 16 via one or more elastic sliding bearings 20 may be used.

As shown in the front view of FIG. 2, the elastic sliding support 20 has a configuration in which a cylindrical laminated rubber 22 as a rubber body and a sliding support 24 are arranged in series in the vertical direction.
A steel flange 34 formed in a disk shape is provided at the lower end of the laminated rubber 22, and the flange 34 is fixed to the foundation 16.
In addition, the shape of the laminated rubber 22 may be a shape other than a columnar shape, for example, a prismatic shape. When the laminated rubber 22 has a prismatic shape, the flange 34 is preferably a plate member having a square planar shape.

The sliding support 24 includes a sliding plate 26 as a structure-side sliding member and a disc-shaped sliding member 28 as a rubber body-side sliding member. The planar shape of the sliding plate 26 is a square. The slip plate 26 is fixed to the upper building 12. Further, the sliding member 28 is fixed to the laminated rubber 22 and is in contact with the sliding plate 26.
The planar shape of the sliding plate 26 and the sliding member 28 may be other shapes, and the planar shape of the sliding plate 26 may be circular, or the planar shape of the sliding member 28 may be rectangular.

  In the structure moving method of the first embodiment, a hydraulic jack (not shown) as a force applying means is fixed to the lower surface of the upper building 12 (reaction force of the hydraulic jack is applied to the upper building 12), and the hydraulic jack A lateral force is applied to the sliding material 28. Thereby, the upper building 12 can be moved laterally with respect to the foundation 16.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  When a lateral force is applied to the sliding member 28 of the elastic sliding bearing 20 (see FIG. 2), the upper surface of the sliding member 28 slides against the lower surface of the sliding plate 26, and the laminated rubber 22 undergoes shear deformation. Occur. Further, a restoring force resulting from the shear deformation is generated in the laminated rubber 22 in which the shear deformation has occurred. This restoring force acts as a reaction force against the upper building 12 (hereinafter referred to as “restoring reaction force”), and when the restoring reaction force generated from all the elastic sliding bearings 20 that support the upper building 12 is balanced. In addition, the upper building 12 is stationary with respect to the foundation 16.

  Therefore, when a lateral force is applied to the sliding member 28 by the hydraulic jack, the magnitude and direction of the restoring force generated from the elastic sliding bearing 20 (laminated rubber 22) having the sliding member 28 to which the force is applied change. Thereby, the balance state of the restoring reaction force changes, and the upper building 12 moves laterally with respect to the foundation 16 until a new balance state is reached. That is, the upper building 12 can be moved laterally with respect to the foundation 16 by the restoring force of the laminated rubber 22 provided on the elastic sliding bearing 20.

  Further, the slip material 28 is moved (sliding the upper surface of the slide material 28 with respect to the lower surface of the slide plate 26) by using the slip deformation function of the elastic slide support 20 (the shear deformation state of the laminated rubber 22 is changed). Since it is only necessary to apply a force that can be applied to the sliding member 28 by a hydraulic jack as the applying means, an applying means with a small acting force can be used.

  That is, since a force larger than the frictional force generated on the contact surface between the sliding member 28 and the sliding plate 26 may be applied in the lateral direction, the individual elastic sliding bearings 20 (sliding bearings 20) are irrelevant regardless of the overall weight of the upper building 12. 24) using a hydraulic jack having a performance corresponding to the frictional force generated in 24) (= the friction coefficient of the contact surface between the sliding member 28 and the sliding plate 26 × the vertical load supported by each elastic sliding bearing 20). it can.

  Further, the force applied by the hydraulic jack as the force applying means does not have to be applied to all the elastic sliding bearings 20 (sliding material 28) supporting the upper building 12 at the same time, so a small number (at least one) is required. The upper building 12 can be moved relative to the foundation 16 by the force applying means.

  For example, in the upper building 12 supported by 256 elastic sliding supports 20, the weight of the upper building 12 is 430,000 tf, and the friction coefficient of the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 is 0. .15, a jack capacity of about 60,000 tf is required from 430,000 tf × 0.15 = 6450,000 tf in order to move the entire upper building 12 with a hydraulic jack. If the capacity of one hydraulic jack is 300 tf, 60,000 tf / 300 tf = 200, and an unrealistic number of hydraulic jacks of 200 is required.

  On the other hand, in the structure moving method of the first embodiment, one hydraulic jack having a capacity capable of sliding the upper surface of the sliding member 28 against the lower surface of the sliding plate 26 is prepared. The hydraulic jack may be used after being replaced. That is, the upper building 12 can be moved by one hydraulic jack.

  Specifically, assuming that all the elastic sliding bearings 20 support the weight of the upper building 12 equally, ((total weight of the upper building 12) / (total number of elastic sliding bearings 20)) × (Friction coefficient of the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28) = (430,000 tf / 256 bases) × 0.15≈250 tf From the fact that only one 300 tf hydraulic jack is required Become.

  Therefore, as explained so far, in the moving method of the structure of the first embodiment, it is possible to use a force applying means with a small acting force, and to the foundation 16 with a small number of force applying means. The upper building 12 can be moved laterally. That is, the seismically isolated upper structure (upper building 12) can be moved regardless of the weight or scale of the upper structure.

  Moreover, as shown in FIG. 1, the seismic isolation device that supports the upper building 12 is the elastic sliding bearing 20, so that the support capability and seismic isolation capability as the seismic isolation device can be reliably obtained.

  The first embodiment of the present invention has been described above.

  In the first embodiment, an example in which the upper building 12 is moved with respect to the foundation 16 by applying a lateral force to the sliding member 28 with a hydraulic jack has been shown, but using only one hydraulic jack, A force may be applied to the sliding members 28 of the plurality of elastic sliding supports 20 in order, or a plurality of hydraulic jacks may be used to simultaneously apply the force to the sliding members 28 of the plurality of elastic sliding supports 20. You may make it perform. Since it is not necessary to apply force simultaneously to the sliding members 28 of all the elastic sliding supports 20, the number of required hydraulic jacks can be reduced.

  Further, since the upper building 12 can be moved to the required position, it is sufficient to apply force to the sliding members 28 of the plurality of elastic sliding bearings 20 in order, so that all the elasticities that support the upper building 12 can be obtained. It is not necessary to apply force to the sliding member 28 of the sliding support 20 by a hydraulic jack.

  Next, a second embodiment of the present invention and its operation and effect will be described.

In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and are appropriately omitted.
First, a mechanism in which residual deformation occurs in the laminated rubber 22 of the elastic sliding bearing 20 and the seismic isolation layer 18 due to the occurrence of an earthquake will be described with reference to the elevation views of FIGS. In addition, in order to make description easy to understand, in FIGS. 3A to 3D, it is assumed that the upper building 12 is supported by the two elastic sliding bearings 20. The elastic sliding bearing 20, the laminated rubber 22, and the sliding bearing 24 arranged on the right side of the upper building 12 are referred to as an elastic sliding bearing 20R, a laminated rubber 22R, and a sliding bearing 24R, and the elastic arranged on the left side of the upper building 12. The sliding bearing 20, the laminated rubber 22, and the sliding bearing 24 are referred to as an elastic sliding bearing 20L, a laminated rubber 22L, and a sliding bearing 24L.

The front view of FIG. 3A shows a state where the upper building 12 is arranged at a predetermined position. The predetermined position means the position of the upper building 12 with respect to the foundation 16 assumed when the building 30 is designed. That is, the predetermined position is an initial position of the upper building 12 with respect to the foundation 16 at the time of completion of the building 30.
In FIG. 3A, the vertical force due to the weight of the upper building 12 acts as the axial forces NR ₀ and NL _{0 on} the elastic sliding bearings 20R and 20L.

Here, as shown in the front view of FIG. 3 (b), when the upper building 12 moves to the right side due to the seismic force W acting from the left side to the right side of the upper building 12 due to the earthquake, A clockwise moment M is generated. As a result, the axial forces NR ₁ and NL _{1 in} the vertical direction in which the vertical force due to the weight of the upper building 12 and the vertical force resulting from the generation of the moment M are applied to the elastic sliding bearings 20R and 20L. .

The vertical force generated due to the generation of the moment M is downward on the right side of the upper building 12 and is upward on the left side of the upper building 12. Thus, since the vertical force due to the weight of the upper building 12 is a downward force, axial force NR ₁ in the vertical direction acting on the elastic sliding bearings 20R is larger than the axial force NR ₀ in FIG. 3 (a), the elastic sliding bearings axial force NL ₁ in the vertical direction acting on the 20L is smaller than the axial force NL ₀ in FIG. 3 (a).

  For this reason, in the sliding bearing 24R, the frictional resistance increases as the surface pressure of the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 increases, thereby increasing the sliding load of the sliding bearing 24R. . That is, since the timing at which the upper surface of the sliding material 28 slides out relative to the lower surface of the sliding plate 26 is delayed, the shear deformation of the laminated rubber 22R increases. Further, in the sliding bearing 24L, the frictional resistance decreases as the surface pressure of the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 decreases, thereby reducing the sliding load of the sliding bearing 24L. That is, since the timing at which the upper surface of the sliding material 28 starts to slide relative to the lower surface of the sliding plate 26 is earlier, the shear deformation of the laminated rubber 22L is reduced.

  Next, as shown in the front view of FIG. 3 (c), when the earthquake causes a lateral seismic force W from the right side to the left side of the upper building 12 due to the earthquake, the upper building 12 moves to the left side. A counterclockwise moment M is generated.

Thereby, in contrast to the case of FIG. 3 (b), the axial force NR ₂ in the vertical direction acting on the elastic sliding bearings 20R is smaller than the axial force NR ₀ in FIG. 3 (a), the elastic sliding bearings 20L The acting vertical axial force NL ₂ is larger than the axial force NL _{0 in} FIG.

  For this reason, since the sliding load of the sliding bearing 24R becomes small, the shear deformation of the laminated rubber 22R becomes small. Further, since the sliding load of the sliding bearing 24L increases, the shear deformation of the laminated rubber 22L increases.

While the earthquake is occurring, the upper building 12 repeatedly moves left and right, and accordingly, the elastic sliding bearings 20R and 20L repeat the behavior described with reference to FIGS. 3B and 3C.
And as shown in the front view of FIG.3 (d), when an earthquake stops, the upper building 12 will be arrange | positioned in the position shifted | deviated from the predetermined position, and a residual deformation | transformation will be produced in the seismic isolation layer 18. FIG. Further, the laminated rubbers 22R and 22L are inclined toward the outer peripheral portion of the upper building 12 in the moving direction of the upper building 12 (the laminated rubber 22R is inclined to the right and the laminated rubber 22L is inclined to the left), and the laminated rubbers 22R and 22L. Cause residual deformation.
In FIG. 3D, since the axial forces NR ₃ and NL ₃ acting on the elastic sliding bearings 20R and 20L are vertical forces due to the weight of the upper building 12, they are the same as the axial forces NR ₀ and NL ₀ in FIG. It is a size.

  FIG. 4 is an example of a seismic response analysis result showing a state of residual deformation of the laminated rubber 22 after the building 10 receives an earthquake having a seismic intensity of 6 or higher. The weight of the upper building 12 is 430,000 tf, the total number of elastic sliding supports 20 that support the upper building 12 is 256, and the friction coefficient of the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding material 28 is 0.15. .

  The plane arrangement 12A of the lower surface of the upper building 12 in a state where the upper building 12 is arranged at a predetermined position is indicated by a one-dot chain line, and the plane of the lower surface of the upper building 12 after the building 10 receives an earthquake with a seismic intensity of 6 or higher. The arrangement 12B is indicated by a solid line.

As shown in the plan view of FIG. 5, the end of the arrow 32 indicates the center position of the flange 34 in plan view, and the tip of the arrow 32 indicates the center position of the sliding member 28 in plan view. That is, in FIG. 4, the laminated rubber 22 is inclined to the left if the arrow 32 is directed to the left, and the laminated rubber 22 is inclined to the right if the arrow 32 is directed to the right. In addition, if the length of the arrow 32 is long, a large residual deformation is generated in the laminated rubber 22, and if the length of the arrow 32 is short, a small residual deformation is generated in the laminated rubber 22.
It should be noted that the length of the arrow 32 and the amount of movement of the upper building 12 (the difference in position between the planar layout 12A and the planar layout 12B) are enlarged and drawn at different magnifications for easy understanding. , Has become an exaggerated expression.

  As shown in FIG. 4, in a state after the building 10 has received an earthquake with a seismic intensity of 6 or more, the upper building 12 moves 31 cm in the X-axis direction and 26 cm in the Y-axis direction orthogonal to the X-axis. doing. The laminated rubber 22 is inclined toward the outer peripheral portion of the upper building 12. That is, the same result as FIG. 3D is obtained, and it can be seen that residual deformation occurs in the seismic isolation layer 18 and the laminated rubber 22 of the building 10.

Next, an example in which the structure moving method of the second embodiment is applied to the building 10 in which residual deformation has occurred in the laminated rubber 22 of the seismic isolation layer 18 and the elastic sliding bearing 20 will be described. In addition, when the sign given to the symbol used in the following description is positive (+), it means the direction from left to right, and when the sign is negative (−), it goes from right to left. Means direction. For example, -P _i in which a negative sign is given to the force P _i described later means that the force P _i acts in a direction from right to left.

  Here, a method for moving the upper building 12 supported by the n-type elastic sliding bearing 20 will be described with reference to FIGS. For convenience of explanation, each elastic sliding bearing 20 is distinguished by being assigned a number from 1 to n, and the number of any elastic sliding bearing 20 is i. In addition, in order to make the explanation easy to understand, it is assumed that the upper building 12 moves only right and left in FIGS. 6A to 6D and does not move in the depth direction.

  The front view of FIG. 6A shows a state where the upper building 12 is arranged at a predetermined position. The predetermined position means a position of the upper building 12 with respect to the foundation 16 assumed when the building 10 is designed. That is, the predetermined position is the initial position of the upper building 12 with respect to the foundation 16 at the time of completion of the building 10.

  At this time, there is no shear deformation in the laminated rubber 22 of the elastic sliding bearing 20, and the center position of the flange 34, the center position of the sliding member 28, and the center position of the sliding plate 26 are substantially the same in plan view. Yes. 6A to 6D, the center position of the flange 34, the center position of the sliding member 28, and the center position of the sliding plate 26 in the front view are shown as points 34P, 28P, and 26P.

  When the planar shape is a quadrangle like the sliding plate 26, the intersection of diagonal lines of the quadrangle may be set as the center position. Further, when the planar shapes of the flange 34, the sliding member 28, and the sliding plate 26 are not circular or quadrangular, the positions of the centers of these planar shapes are the center positions of the flange 34, the sliding member 28, and the sliding plate 26. do it.

  In the front view of FIG. 6B, the building 10 of FIG. 6A receives an earthquake, and the seismic isolation layer 18 and the elastic sliding bearing 20 are laminated by the mechanism described in FIGS. 3A to 3D. The state in which the rubber 22 has residual deformation is shown.

Residual deformation Δ (= the difference between the position of the upper building 12 (predetermined position) in FIG. 6 (a) and the position of the upper building 12 in FIG. 6 (b)) occurs in the seismic isolation layer 18. Residual deformation δ _i occurs in the laminated rubber 22 of the (i) elastic sliding bearing 20. That is, the distance between the point 34P and the point 26P is Δ, and the distance between the point 34P and the point 28P is δ _i .

Wherein any rubber shear stiffness _{K i} of the elastic sliding bearings 20 (laminated rubber 22) of (i th), if the recovery reaction force and _{F i,} optionally Elastic sliding bearings 20 formula (i-th) (1) The relationship holds.

  Moreover, since the upper building 12 is stationary, the relationship of Formula (2) is established, and Formula (3) is obtained from Formulas (1) and (2).

  From this state, through steps 1 to 3 described below, the upper building 12 is moved with respect to the foundation 16, and the upper building 12 is returned to the original position (predetermined position).

(1) Step 1
As shown in the front view of FIG. 6 (c), a hydraulic jack (not shown) as a force applying means is fixed to the lower surface of the upper building 12 (the reaction force of the hydraulic jack is applied to the upper building 12). , A lateral force P _i is applied to the sliding member 28 provided on the i-th elastic sliding bearing 20.

At this time, as shown in FIG. 8 which is a front view of FIG. 7 and an AA arrow view of FIG. 7 (only the sliding plate 26, the sliding member 28, and the flange 34 are shown), the force Pi is applied by a hydraulic jack. The center position 28C of the sliding material 28 before being added (in the state of FIG. 6B) and the upper building 12 are disposed when the upper building 12 is moved (returned) to the predetermined position (in the state of FIG. 6A). ) A force _Pi is applied to the sliding member 28 by a hydraulic jack in a direction connecting the center position 28C of the sliding member 28 with respect to the sliding plate 26 (the position of the sliding member 28 immediately below the central position 26C of the sliding plate 26). The center position 28C is matched with the center position 26C of the slide plate 26 in plan view. The stroke of the hydraulic jack at this time is Δ−δ _i .

  As shown in FIG. 6A, in a state where the upper building 12 is arranged at a predetermined position, the center position 34C of the flange 34, the center position 28C of the sliding member 28, and the center position 26C of the sliding plate 26 are viewed in plan view. Therefore, the center position 28C of the sliding member 28 with respect to the sliding plate 26 (in the state of FIG. 6 (a)) is arranged when the upper building 12 is moved (returned) to a predetermined position. This coincides with the center position 26C of the sliding plate 26 in plan view.

Since the reaction force of the hydraulic jack is taken to the upper building 12, by applying a force P _i to slip material 28 by a hydraulic jack, the upper building 12 moves by alpha _i relative to the base 16. That is, as shown in FIG. 6C, shear deformation (= position (predetermined position) of the upper building 12 in FIG. 6A) and position of the upper building 12 in FIG. The distance of the difference is Δ + α _i .

Here, in a state in which the sliding member 28 is force P ₁ applied having the No. 1 of the elastic sliding bearings 20, the relationship of formula (4) holds true for # 1 of the elastic sliding bearings 20.

  At this time, the relationship of formula (5) is established for the other elastic sliding bearings 20.

Further, since the upper building 12 is stationary after the force P ₁ is applied to the sliding member 28 having the 1st elastic sliding bearings 20, restored the sum of the sum force P ₁ of the reaction force F _i value Since 0 becomes 0, the relationship of Expression (6) is established.

  Then, equation (7) is obtained by adding equation (6) to equation (4), and equation (8) is obtained by subtracting equation (5) from equation (7).

  Further, when formula (8) is rearranged, formulas (9) and (10) are obtained, and formula (11) is obtained by generalizing formula (10).

(2) Step 2
After the force of the force P ₁ to the skids 28 with the number 1 of the elastic sliding bearings 20 is completed, releasing the hydraulic jack. At this time, the movement of the upper building 12 and the shear deformation of the laminated rubber 22 do not occur.

(3) Step 3
Steps 1 and 2 are repeated in order for all the remaining elastic sliding supports 20 (from No. 2 to No. n).

Therefore, equation (12) is obtained from equations (3) and (11). That is, as shown in the front view of FIG. 6 (d), the by performing the pressurizing force of the force P _i by the hydraulic jacks once for elastic sliding bearings 20 of the total (from No. 1 to No. n), predetermined position Thus, the upper building 12 can be moved to the base, and thereby the residual deformation generated in the seismic isolation layer 18 can be eliminated.
Moreover, the residual deformation | transformation which arose in the laminated rubber 22 provided in the elastic sliding support 20 of all (1st to n-th) can be eliminated.

Therefore, as described so far, in the second embodiment, the center position 28C of the sliding member 28 before the force Pi is applied by the hydraulic jack and the sliding plate 26 when the upper building 12 is moved to a predetermined position. the center position 28C and force P _i to slip material 28 by a hydraulic jack to the direction connecting the sliding member 28 which is disposed against addition, disposed against sliding plate 26 when moving the upper building 12 in a predetermined position By moving the center of the sliding material 28 to the center position 28C of the sliding material 28, the upper building 12 can be moved to a predetermined position. Further, when the laminated rubber 22 has a residual deformation, the residual deformation that has occurred in the laminated rubber 22 can be eliminated.

  In addition, the center position 28 </ b> C of the sliding member 28 disposed with respect to the sliding plate 26 when the upper building 12 is moved to a predetermined position is matched with the center position 26 </ b> C of the sliding plate 26 in plan view. The upper building 12 can be moved to a normal design position (predetermined position) where the elastic sliding bearing 20 is arranged to support the upper building 12 at the center position 26C of the plate 26.

  The second embodiment of the present invention has been described above.

  In the second embodiment, an example in which only the elastic sliding bearing 20 is disposed on the seismic isolation layer 18 has been shown. However, a damper or the like that applies a resistance force to the lateral movement of the upper building 12 is used. When the devices are provided in the seismic isolation layer 18, it is desirable to perform the moving operation (steps 1 to 3) of the upper building 12 after removing these devices.

Moreover, in 2nd Embodiment, when the upper building 12 was moved to a predetermined position, the example which moves the center of the sliding material 28 to the center position 28C of the sliding material 28 arrange | positioned with respect to the sliding board 26 was shown. However, when it is not necessary to completely move the upper building 12 to a predetermined position, it is not necessary to completely move the center of the sliding material 28, and the center position of the sliding material 28 before applying the force Pi by the hydraulic jack. Even if a force _Pi is applied to the sliding member 28 by a hydraulic jack in a direction connecting 28C and the center position 28C of the sliding member 28 disposed with respect to the sliding plate 26 when the upper building 12 is moved to a predetermined position. Then, the upper building 12 can be brought close to a predetermined position. Further, when the rubber body has a residual deformation, the residual deformation that has occurred in the rubber body can be reduced.

In the second embodiment, an example that allows the pressurizing force of the force P _i by the hydraulic jacks once for skids 28 of the elastic sliding bearings 20 of the total (from No. 1 to No. n), When it is not necessary to completely move the upper building 12 to a predetermined position (for example, it is sufficient if the upper building 12 can be moved to an allowable range), the force P _i by the hydraulic jack is applied to the sliding members 28 of all the elastic sliding bearings 20. It is not necessary to apply the additional force. In this case, the residual deformation generated in the laminated rubber 22 of the elastic sliding bearing 20 is reduced, but is not completely eliminated.

The skids 28 of all the elastic sliding bearings 20 supporting the upper building 12, by applying a lateral force P _i by a hydraulic jack, can be brought close to or effectively move the upper building 12 position. Further, when residual deformation occurs in the laminated rubber 22, the residual deformation generated in the laminated rubber 22 can be eliminated or effectively reduced.

  Moreover, in 2nd Embodiment, when the upper building 12 was moved to a predetermined position, the example which moves the center of the sliding material 28 to the center position 28C of the sliding material 28 arrange | positioned with respect to the sliding board 26 was shown. However, this movement may be performed by a single force applied by a hydraulic jack, or may be performed by a plurality of times of force applied. If it is performed by a single force applied by the hydraulic jack, the upper building 12 can be efficiently moved or brought closer to a predetermined position. Further, when residual deformation occurs in the laminated rubber 22, the residual deformation generated in the laminated rubber 22 can be eliminated or reduced efficiently.

In the second embodiment, an example of bracts 1 elastic sliding bearings 20 (skids 28) to apply a force P _i by a hydraulic jack in Step 1, the elastic added simultaneously force P _i by a hydraulic jack slip The support 20 (sliding material 28) may be plural. In the second embodiment, it is not necessary to press all the elastic sliding bearings 20 (sliding material 28) at the same time, so that the number of required hydraulic jacks can be reduced. The plurality of elastic sliding bearings 20 (skids 28), be added simultaneously force P _i by a hydraulic jack, it is possible to shorten the time required to move the upper building 12.

Further, in the second embodiment, the vertical axial force acting on the arbitrary (i) elastic sliding bearing 20 from the upper building 12 is N _i , and the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28. the friction coefficient when formed into a mu _i, satisfies the condition of formula (13), slide the upper surface of the sliding member 28 with respect to the lower surface of the sliding plate 26 after a force is applied P _i to slip material 28 by a hydraulic jack This is preferable because the restoring reaction force can be transmitted to the sliding plate 26 without fail.

Further, when the condition of the formula (14) is satisfied, since the shear deformation of Δ−δ _i cannot be applied to the laminated rubber 22, the sliding material 28 of all the elastic sliding bearings 20 (from No. 1 to No. n). once for even if the pressurizing force of the force P _i by the hydraulic jacks, it is impossible to move the upper building 12 in position. In such a case, the stroke D _i by one-time application of the hydraulic jack is set to ((μ _i · N _i ) / K _i ) −δ _i, and until the condition of Expression (13) is satisfied, the hydraulic jack may be performed repeatedly pressurizing force by the stroke D _i.

  Moreover, in 2nd Embodiment, the upper building 12 of the state (refer FIG.6 (b)) in which the residual deformation has arisen in the laminated rubber 22 and the seismic isolation layer 18 of the elastic sliding bearing 20 is moved to a predetermined position. In the example shown in FIG. 9A, the upper building 12 is positioned at a predetermined position as shown in the front view of FIG. 9A. The structure moving method of the second embodiment with respect to the building 10 in which the seismic isolation layer 18 has no residual deformation and the residual deformation is generated only in the laminated rubber 22 of the elastic sliding bearing 20. May be applied. Hereinafter, in order to make the explanation easy to understand, it is assumed that the upper building 12 moves only to the right and left in FIGS. 9A to 9D and does not move in the depth direction.

In such a case, steps 1-3 described above may be performed with Δ = 0. As shown in the front view of FIG. 9B and the front view of FIG. 10, a hydraulic jack (not shown) as a force applying means is fixed to the lower surface of the upper building 12 (the reaction force of the hydraulic jack is applied to the upper building 12). In the meantime, by using this hydraulic jack, a lateral force _Pi is applied to the sliding member 28 provided on the i-th elastic sliding bearing 20, so that it is as shown in the front view of FIG.

At this time, the central position 28C of the sliding member 28 (in the state shown in FIG. 9B) before the force Pi is applied by the hydraulic jack and the upper building 12 are disposed (returned) to a predetermined position. A force is applied to the sliding member 28 by a hydraulic jack in a direction connecting the center position 28C of the sliding member 28 with respect to the sliding plate 26 (in the state of FIG. 6A) (the position of the sliding member 28 immediately below the central position 26C of the sliding plate 26). _Pi is added, and the center position 28C of the sliding member 28 is matched with the center position 26C of the sliding plate 26 in plan view. The stroke of the hydraulic jack at this time is −δ _i (pushing δ _i from right to left by the hydraulic jack).

Then, as shown in the front view of FIG. 9 (d), the pressure force of the force P _i by the hydraulic jacks once for elastic sliding bearings 20 (skids 28) all (from No. 1 to No. n) If this is done, the upper building 12 can be moved to a predetermined position, thereby eliminating the residual deformation that has occurred in the laminated rubber 22 provided on the elastic sliding bearings 20 of all (No. 1 to No. n). it can.

  Thus, even if there is no change in the arrangement of the upper building 12 with respect to the foundation 16 before and after using the structure moving method of the second embodiment, if the upper building 12 has moved in the middle, the second The technical idea of the structure moving method of the embodiment is applied. That is, “the structure moving method for moving the upper structure (upper building 12)” means “the upper structure (upper building 12) is placed at a predetermined position by moving the upper structure (upper building 12)”. It means "do".

  The situation shown in FIG. 9A can occur, for example, when the concrete forming the upper building 36 is dried and contracted as shown in the elevation view of FIG. In FIG. 11, since the upper building 36 is supported on the foundation 16 via the elastic sliding bearing 20, residual deformation occurring in the elastic sliding bearing 20 is performed by performing steps 1 to 3 described above. It can be lost.

Further, in the second embodiment, in FIGS. 6A to 6D and FIGS. 9A to 9D, the upper building 12 moves only to the right and left, and does not move in the depth direction. However, the second embodiment can also be applied to the upper building 12 that is moved laterally in a direction other than right and left. For example, as shown in the plan view of FIG. 12, even when the sliding plate 26 and the sliding member 28 move obliquely, the center position 28C of the sliding member 28 before the force Pi is applied by the hydraulic jack and the upper building 12 are A force is exerted on the sliding member 28 by a hydraulic jack in a direction connecting the center position 28C of the sliding member 28 arranged with respect to the sliding plate 26 when moved to a predetermined position (center position 26C of the sliding plate 26 in plan view). it may be added to P _i.

  Moreover, in 2nd Embodiment, although the example which assumed the position of the upper building 12 with respect to the foundation 16 assumed at the time of design of the building 10 as the predetermined position was shown, the predetermined position is arbitrary positions which want to move the upper building 12 It can be.

In this case, when the upper building 12 is moved to a predetermined position, the center position 28C of the sliding material 28 disposed with respect to the sliding plate 26 is shear-deformed when the upper building 12 is moved to an arbitrary position. In the laminated rubber 22 that is not in the state, the center position 28 </ b> C of the sliding material 28 fixed to the laminated rubber 22 is a point on the sliding plate 26.
Thereby, the upper building 12 can be moved or brought close to an arbitrary position to be moved.

  Next, a third embodiment of the present invention will be described.

  In the third embodiment, the sliding member 28 is fixed to the sliding plate 26 against the lateral movement after the force applied to the sliding member 28 by the hydraulic jack described in the first and second embodiments. is there. Accordingly, in the description of the third embodiment, the same components as those in the first and second embodiments will be denoted by the same reference numerals and appropriately omitted.

  In the third embodiment, as shown in the front view of FIG. 13B, a lateral force is applied to the sliding member 28 by a hydraulic jack as a force applying means, and then the sliding member 26 is slipped by the fixing member 46. The material 28 is fixed against lateral movement.

  In the front view of FIG. 13A, a state before the sliding member 28 is fixed to the sliding plate 26 by the fixing member 46 is shown. When the sliding member 28 is caused to slide with respect to the sliding plate 26 by applying a lateral force to the sliding member 28 with a hydraulic jack, it is performed in the state of FIG.

As shown in FIG. 13A and FIG. 14A, which is a BB arrow view of FIG. 13A, a plurality of holes 56 formed in the sliding plate 26 and the upper building 12 are shown in FIG. A male screw 58 shown in FIG. The end surface 58B of the head 58A of the male screw 58 is flat, and when the male screw 58 is completely screwed into the female screw formed in the hole 56, the end surface 58B and the lower surface of the slide plate 26 are flush with each other. . In this way, the end surface 58B and the lower surface of the sliding plate 26 form a sliding surface that allows the sliding member 28 to slide.
The end face 58B of the male screw 58 is formed with a + or-groove into which the tip of a screwdriver (screwdriver) is inserted when the male screw 58 is screwed into the female screw of the hole 56. This groove is formed so as not to lower the smoothness of the end face 58B of the male screw 58.

  As shown in FIG. 13B and FIG. 14B, which is a CC arrow view of FIG. 13B, the sliding member 28 is moved to the sliding plate 26 by the fixing member 46 against the lateral movement. At the time of fixing, a plurality of fixing members 46 are arranged around the sliding member 28 so as to restrain the movement of the sliding member 28 in the lateral direction.

  As shown in the perspective view of FIG. 16, the fixing member 46 is a combination of a steel shaft member 48 formed in a columnar shape and a steel outer diameter changing member 50, 52, 54 formed in a cylindrical shape. Configured. The inner diameter of the main body 50A of the outer diameter changing member 50 is such that the main body 48A of the shaft member 48 can be inserted, and the inner diameter of the main body 52A of the outer diameter changing member 52 is the outer diameter changing member 50. The main body 50A can be inserted, and the inner diameter of the main body 54A of the outer diameter changing member 54 is such that the main body 52A of the outer diameter changing member 52 can be inserted.

  Also, flanges 48B, 50B, 52B, and 54B are provided at the lower ends of the main body 48A of the shaft member 48 and the main bodies 50A, 52A, and 54A of the outer diameter changing members 50, 52, and 54A. Then, the main body 52A of the outer diameter changing member 52 is inserted into the main body 54A of the outer diameter changing member 54, the main body 50A of the outer diameter changing member 50 is inserted into the main body 52A of the outer diameter changing member 52, and this outer diameter changing member. When the male screw part 48C of the shaft member 48 is screwed into the female screw formed in the hole 56 in a state where the main body 48A of the shaft member 48 is inserted into the main body 50A of 50, the outer diameter of the flange parts 48B, 50B, 52B The lower surfaces of the main bodies 50A, 52A, and 54A of the changing members 50, 52, and 54 are in contact with each other and do not fall downward.

  Then, the outer diameter of the fixing member 46 is changed by a combination of the shaft member 48 and the outer diameter changing members 50, 52 and 54. For example, if the fixing member 46 is constituted only by the shaft member 48, the outer diameter of the fixing member 46 can be minimized. Further, if the fixing member 46 is constituted by the shaft member 48 and the outer diameter changing member 50, the outer diameter can be made larger than that of the fixing member 46 constituted only by the shaft member 48. Further, if the fixing member 46 is constituted by the shaft member 48 and the outer diameter changing members 50, 52, 54, the outer diameter of the fixing member 46 can be maximized.

  As shown in FIGS. 13B and 14B, when the fixing member 46 is installed on the slide plate 26, the male screw 58 at the installation position of the fixing member 46 is removed, and the male screw 58 is removed. The male screw portion 48C of the shaft member 48 constituting the fixing member 46 is screwed into the female screw formed in the accommodated hole 56.

  As shown in FIG. 14B, the outer diameter of the fixing member 46 is adjusted by the method described above so that the distance between the peripheral wall of the fixing member 46 and the peripheral wall of the sliding member 28 becomes as small as possible. It is preferable that the distance between the peripheral wall of the fixing member 46 and the peripheral wall of the sliding member 28 is 0 (the peripheral wall of the fixing member 46 and the peripheral wall of the sliding member 28 are in contact).

  Next, operations and effects of the third exemplary embodiment of the present invention will be described.

  As shown in FIGS. 13 (b) and 14 (b), a lateral force is applied to the sliding member 28 by a hydraulic jack as a force applying means, and then the sliding member 28 is laterally applied to the sliding plate 26 by a fixing member 46. By fixing with respect to the movement of the direction, it is possible to prevent the upper surface of the sliding member 28 from slipping with respect to the lower surface of the sliding plate 26. That is, since it is possible to prevent a decrease in the amount of shear deformation of the laminated rubber 22 due to the sliding of the upper surface of the sliding material 28, it is possible to prevent the restoring force of the laminated rubber 22 from changing (decreasing).

  Heretofore, the third embodiment of the present invention has been described.

In the third embodiment, the example in which the fixing member 46 is configured by combining the shaft member 48 and the three outer diameter changing members 50, 52, and 54 has been described, but the outer diameter changing member that constitutes the fixing member 46 is shown. The size of the outer diameter changing member, the shape and shape of the outer diameter changing member, and the variation of the outer diameter of the fixing member 46 that can be created may be appropriately determined.
Further, the sliding member 28 may be fixed to the sliding plate 26 with respect to the lateral movement by using a member other than the fixing member 46.

  In the third embodiment, the example in which the sliding member 28 is fixed to the sliding plate 26 with respect to the lateral movement by the six fixing members 46 is shown (see FIG. 14B). The fixing members 46 may be arranged so that the upper surface of the sliding member 28 can be prevented from slipping with respect to the lower surface of the plate 26, and the number and arrangement of the fixing members 46 may be appropriately determined.

  Next, a fourth embodiment of the present invention will be described.

  In the fourth embodiment, the frictional force generated on the contact surface between the sliding plate 26 and the sliding member 28 is increased after the force applied to the sliding member 28 by the hydraulic jack described in the first and second embodiments. It is. Therefore, in the description of the fourth embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals and are appropriately omitted.

  In the elastic sliding bearing 68 of the fourth embodiment, a steel flange 60 formed in a plate shape is provided at the upper end of the laminated rubber 22 as shown in the front view of FIG. A plurality of through holes are formed in the flange 60, and a female screw 62 is formed on the inner wall of the through hole.

  A sliding material 28 is placed on the upper surface of the flange 60. Bolts 64 are screwed into the female threads 62 of the flange 60 so that the front ends protrude from the upper surface of the flange 60. On the lower surface of the sliding member 28, an accommodation hole 66 is formed in which the tip end portion of the projecting bolt 64 is rotatably accommodated.

  In the state of FIG. 17A, the bolt 64 is screwed into the female screw 62 to such an extent that the sliding member 28 does not float from the upper surface of the flange 60 (the tip of the bolt 64 does not hit the ceiling surface of the accommodation hole 66). The frictional force generated on the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 is the same as that of the elastic sliding bearing 20 shown in FIG.

  Here, as shown in the front view of FIG. 17 (b), after applying force to the sliding member 28 with a hydraulic jack, the bolt 64 is further screwed into the female screw 62, and the sliding member 28 is removed from the upper surface of the flange 60. By raising the surface, the axial force acting between the sliding plate 26 and the sliding member 28 is increased. As a result, the frictional force generated on the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 becomes larger than the state shown in FIG.

  Next, operations and effects of the fourth exemplary embodiment of the present invention will be described.

  As shown in FIG. 17B, after a lateral force is applied to the sliding member 28 by a hydraulic jack as a force applying means, the sliding member 28 is lifted from the upper surface of the flange 60 to slide on the lower surface of the sliding plate 26. By increasing the frictional force generated on the contact surface with the upper surface of the material 28, the amount of sliding of the upper surface of the sliding material 28 relative to the lower surface of the sliding plate 26 can be reduced. That is, since a decrease in the amount of shear deformation of the laminated rubber 22 due to the sliding of the sliding material 28 can be reduced, a change in the restoring force of the laminated rubber 22 can be reduced.

  The first to fourth embodiments of the present invention have been described above.

In the first to fourth embodiments, an example in which the reaction force of the hydraulic jack is applied to the upper building 12 by fixing the hydraulic jack as the applying means to the lower surface of the upper building 12 has been described. Accordingly, it is sufficient that a lateral force can be applied to the sliding member 28, and the reaction force of the hydraulic jack may be applied to the foundation 16 or to the ground 14 that supports the foundation 16.
When the reaction force is applied to the foundation 16 or the ground 14, the condition of the formula (15) needs to be satisfied when the number of the elastic sliding bearing 20 to which force is applied by the hydraulic jack is i.

  The axial forces acting on all the elastic sliding supports 20 that support the upper building 12 are equal, and in all the elastic sliding supports 20 that support the upper building 12, the contact surface between the upper surface of the sliding member 28 and the lower surface of the sliding plate 26. When the friction coefficients are substantially equal, it is considered that the condition of the equation (15) is satisfied if the upper building 12 is supported by three or more elastic sliding bearings 20.

  In the first to fourth embodiments, the example in which the applying means is a hydraulic jack has been described. However, the applying means may be any means that can apply a predetermined force to the sliding member 28 in the lateral direction. Good.

In the first to fourth embodiments, the example in which the seismic isolation device is the elastic sliding bearing 20 is shown. However, in the seismic isolation device, the sliding bearing and the rubber body, or the rubber body and the sliding bearing are arranged in series vertically. Any arrangement may be used.
Any sliding bearing may be used as long as it can move the upper building 12 in the lateral direction relative to the foundation 16 by sliding deformation.

The rubber body only needs to generate a restoring force due to shear deformation, and may be a single-layer rubber or a laminated rubber.
Further, an elastic-plastic sliding bearing in which a laminated rubber with a damping mechanism and a sliding bearing are arranged in series in the vertical direction may be used as the seismic isolation device. Examples of the laminated rubber with a damping mechanism include a high damping laminated rubber and a laminated rubber with a lead plug. If the seismic isolation device is an elasto-plastic sliding bearing, the support capability and seismic isolation capability as a seismic isolation device can be obtained reliably, and the vibration energy is absorbed by the plastic deformation of the laminated rubber with a damping mechanism. The amount by which the upper building 12 moves laterally with respect to the foundation 16 during an earthquake can be reduced.

  The upper building 12 may be supported only by a seismic isolation device composed of a sliding bearing and a rubber body, or a general laminated rubber (for example, a natural rubber-based laminated material) as a bearing for supporting the upper building 12. (Rubber) may be used in combination.

In the first to fourth embodiments, an example in which a lateral force is applied to the sliding member 28 using a hydraulic jack as a force applying unit has been described. However, the lower surface of the sliding plate 26 and the upper surface of the sliding member 28 are in contact with each other. In a state where the frictional force generated on the surface is reduced, a lateral force may be applied to the sliding member 28 by a hydraulic jack as a force applying means.
As a result, the sliding member 28 can be moved with a small lateral force. That is, it is possible to use a force applying means that exerts a smaller lateral force.

  As a method of reducing the frictional force generated on the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding material 28, for example, a method of spraying mist of water or volatile alcohol on the contact surface may be used. Alternatively, a method of applying silicon oil or grease may be used. The method of spraying water or volatile alcohol is preferable because it is not necessary to wipe off water or volatile alcohol after applying a lateral force by a force applying means.

  As another method for reducing the frictional force generated on the contact surface between the lower surface of the sliding plate 26 and the upper surface of the sliding member 28, the upper building 12 is pushed up in the vertical direction with a hydraulic jack or the like and acts on the seismic isolation device. A method for reducing the axial force may be used.

  Further, the surface (slip surface) of the sliding plate 26 shown in the first to fourth embodiments is formed of, for example, a fluororesin such as Teflon (registered trademark), various synthetic resins, polyethylene, molybdenum disulfide, or the like. Also good.

  Further, the surface (slip surface) of the sliding material 28 is made of, for example, a stainless steel, a fluororesin such as cast iron, ceramics, or Teflon (registered trademark) used for a brake disc material, various synthetic resins, polyethylene, or molybdenum disulfide. May be.

  Moreover, in the 1st-4th embodiment, although the seismic isolation layer 18 was shown as the basic seismic isolation layer provided between the foundation 16 and the upper building 12, the seismic isolation layer 18 is an intermediate seismic isolation layer. It is good also as a layer.

  The upper building 12 shown in the first to fourth embodiments may be a large-scale structure. Since the upper building 12 made of a large-scale structure has a large weight, it is technically difficult to move it in the lateral direction by a conventional method. For example, when the upper building 12 is moved by pushing the entire upper building 12 with a hydraulic jack, the load of about 10% of the total weight of the entire upper building 12 is considered in terms of the structure of the seismic isolation layer of a general seismic isolation building. It is expected that the ability will be required for jacks. That is, since an excessively large hydraulic jack or an excessive number of hydraulic jacks is required, it is difficult to actually implement it.

  On the other hand, in the moving method of the structure shown in the first to fourth embodiments, the sliding is performed using the sliding deformation function of the sliding support 24 (sliding the sliding member 28 with respect to the sliding plate 26). Since a force that can move the material 28 (changes the shear deformation state of the laminated rubber 22) only needs to be applied to the sliding material 28 by a hydraulic jack as the force applying means, the force applying means with a small force to be applied is provided. Can be used.

  That is, since a force larger than the frictional force generated on the contact surface between the sliding member 28 and the sliding plate 26 may be applied in the lateral direction, the individual elastic sliding bearings 20 (sliding bearings 20) are irrelevant regardless of the overall weight of the upper building 12. 24) using a hydraulic jack having a performance corresponding to the frictional force generated in 24) (= the friction coefficient of the contact surface between the sliding member 28 and the sliding plate 26 × the vertical load supported by each elastic sliding bearing 20). it can.

  Furthermore, the force applied by the force applying means does not have to be applied to all the elastic sliding bearings 20 (sliding material 28) supporting the upper building 12 at the same time, so a small number (at least one) of force applying means is used. The upper building 12 can be moved relative to the foundation 16. For example, if the upper building 12 moved due to an earthquake or the like is to be completely returned to its original position, it is necessary to apply force to all the elastic sliding bearings 20 (sliding material 28) at least once. In this case, it is sufficient to sequentially apply force to each elastic sliding bearing 20 (sliding material 28) while changing the hydraulic jack.

  Thus, even a large-scale structure having a large weight can be moved.

  Here, the large-scale structure means a structure that is difficult to be pressed simultaneously with a normal capacity jack. For example, a large-scale structure means “the weight of the structure ≧ (maximum loading force of a hydraulic jack that is generally used) × (the number of hydraulic jacks that can be used simultaneously in normal construction) / the sliding surface of the sliding bearing. It can also be considered as a structure having a “friction coefficient”. In addition, in the case of the structure of the base isolation layer of a general base isolation building, it is thought that a friction coefficient will be about 0.1.

  The superstructure can be a structure of various structures and scales. In particular, when the structure moving method according to the first to fourth embodiments is used for a heavy structure such as a thermal power plant, a nuclear power plant, a high-rise building, a factory, or a hospital, a more excellent effect is obtained. Can be demonstrated.

As explained so far, if the building has an upper building that is moved by the structure moving method shown in the first to fourth embodiments, the upper building is moved regardless of the weight or scale of the upper building. be able to.
Here, the “upper building moved by the structure moving method” means, for example, a force applying means for performing the structure moving method shown in the first to fourth embodiments, or this force applying means. It means an upper building having a fixing mechanism for providing, or an upper building provided with a management manual or the like in which a moving method of the structure shown in the first to fourth embodiments is described.

  The first to fourth embodiments of the present invention have been described above, but the present invention is not limited to such embodiments, and the first to fourth embodiments may be used in combination. Needless to say, the present invention can be implemented in various modes without departing from the gist of the present invention.

10 Building 12, 36 Upper building (superstructure)
16 Foundation (substructure)
20, 68 Elastic sliding bearing (vibration isolation device)
22, 38 Laminated rubber (rubber body)
24 Sliding bearing 26 Sliding plate (structure side sliding member)
26C, 28C Center position 28 Sliding material (rubber body side sliding member)
_Pi force

Claims (13)

In the structure moving method of moving the upper structure supported on the lower structure via the seismic isolation device in which the rubber body and the sliding support are arranged in series in the vertical direction,
The sliding bearing includes a structure-side sliding member fixed to the upper structure or the lower structure, and a rubber body-side sliding member fixed to the rubber body and contacting the structure-side sliding member,
A method for moving a structure in which a lateral force is applied to the rubber body side sliding member by a force applying means. The direction of the force applied to the rubber body side sliding member by the force applying means is:
A center position of the rubber body side sliding member before applying force by the force applying means;
2. The movement of the structure according to claim 1, wherein the movement is a direction connecting a center position of the rubber body-side sliding member arranged with respect to the structure-side sliding member when the upper structure is moved to a predetermined position. Method.   When the upper structure is moved to a predetermined position, the center position of the rubber body side sliding member arranged with respect to the structure side sliding member coincides with the center position of the structure side sliding member in plan view. The structure moving method according to claim 2.   When the upper structure is moved to a predetermined position, the rubber-body-side sliding member is applied to the center position of the rubber-body-side sliding member with respect to the structure-side sliding member by a single force applied by the force applying means. The structure moving method according to claim 2 or 3, wherein the center of the structure is moved.   The structure according to any one of claims 1 to 4, wherein the rubber body side sliding member is fixed to the structure side sliding member after a lateral force is applied to the rubber body side sliding member by the force applying means. How to move.   5. The frictional force generated on the contact surface between the structure-side sliding member and the rubber-body-side sliding member is increased after a lateral force is applied to the rubber-body-side sliding member by the force applying means. A method for moving a structure according to claim 1.   The frictional force generated on the contact surface between the structure-side sliding member and the rubber-body-side sliding member is reduced when a lateral force is applied to the rubber-body-side sliding member by the force applying means. A method for moving a structure according to claim 1.   The structure according to any one of claims 1 to 7, wherein a lateral force is simultaneously applied to the rubber body side sliding member of all or part of the rubber body supporting the upper structure by the force applying means. How to move.   The structure moving method according to claim 1, wherein a lateral force is applied to the rubber body side sliding members of all the rubber bodies supporting the upper structure by the force applying means.   The method for moving a structure according to any one of claims 1 to 9, wherein the seismic isolation device is an elastic sliding bearing.   The method for moving a structure according to any one of claims 1 to 9, wherein the seismic isolation device is an elasto-plastic sliding bearing.   The method of moving a structure according to claim 1, wherein the upper structure is a large-scale structure.   The building which has the said upper structure moved by the moving method of the structure described in any one of Claims 1-12.

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