JP3503113B2 - Elevator structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to an intermediate seismic isolation building having a low-rise portion and a high-rise portion supported by the low-rise portion via a base-isolation layer, and is continuous in the low-rise portion and the high-rise portion. It relates to the structure of an elevator that moves up and down.

[0002]

2. Description of the Related Art Generally, in a base-isolated building, there are many basic seismic isolation systems in which a seismic isolation device is installed at the bottom of the building, but there are basements,
In a building where the lower part is a store and the higher part is a house, a seismic isolation layer may be provided on the middle floor. In addition, even when trying to strengthen the existing building with seismic isolation, seismic isolation on the intermediate floor may be effective due to site conditions and functional restrictions of the building.

[0003] In the seismic isolation of these intermediate floors, how to deal with the large deformation of the seismic isolation layer caused by the earthquake, how to deal with the elevator passing through the seismic isolation layer becomes a big problem. For this, for example, a measure is adopted to prevent the influence of relative displacement between the low-rise portion and the high-rise portion from affecting the elevator shaft by suspending the elevator shaft from the high-rise portion side.

However, if such a measure is adopted, in the elevator shaft of the low-rise portion, the elevator shaft suspended from the high-rise portion needs to have a size that allows for the deformation of the seismic isolation layer, which leads to space availability. There was a problem.

Therefore, Japanese Patent Laid-Open No. 10-88 shown in FIG.
An elevator shaft described in No. 846 has been proposed. In FIG. 13, the sub-frame 102 is arranged in the shaft 101, and the guide rail 104 of the elevator 103 is fixed in the sub-frame 102. And in the event of an earthquake, subframe 10
2 is made to follow the deformation of the seismic isolation layer as shown in FIG.

[0006]

However, as shown in FIG.
The elevator shafts shown in Nos. 3 and 14 have a limited amount of deformation (about 20 cm) in the subframe 102, and there is a concern that the subframe 102 may be damaged when a large earthquake occurs.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an elevator structure capable of satisfactorily coping with deformation during a large earthquake.

[0008]

In order to solve the above problems, the following means are adopted in the present invention. That is,
The elevator structure according to claim 1 is applied to an intermediate seismic isolation building including a low-rise portion and a high-rise portion supported by the low-rise portion via a base-isolation layer, and is continuous in the low-rise portion and the high-rise portion. In the structure of an elevator that moves up and down, a guide rail is arranged inside the hoistway that is formed so as to pass through the seismic isolation layer from the inside of the low-rise portion to reach the inside of the high-rise portion, and the guide rail is , A lower member having at least its lower end fixed to the lower layer portion and an upper member having at least its upper end fixed to the higher layer portion are vertically connected to each other. The lower end and the upper end of the lower member are connected via a connecting portion located in the seismic isolation layer, and the connecting portion includes the upper member and the lower member.
Is the shearing force at break smaller than that of the member?
The relative displacement between the low-rise part and the high-rise part is
Through the first connecting member that breaks when the value exceeds a certain value
The upper member and the lower member are connected vertically, and when the relative displacement between the low layer portion and the high layer portion becomes a predetermined value or more, the upper member and the lower member are separated, and The guide rails are supported from the intermediate seismic isolated building side through a support device that allows relative displacement between the guide rails and the intermediate seismic isolated building in a certain area above and below the connecting portion. Is characterized by.

Due to such a structure, when the relative displacement between the low-rise portion and the high-rise portion is less than a predetermined value during a small-to-medium-earthquake, the upper and lower fixed regions of the connecting portion have intermediate seismic isolation. The relative displacement with respect to the building allows the guide rail to follow relative displacement between the low-rise part and the high-rise part. Also, in the event of a large earthquake, if the relative displacement between the low-rise part and the high-rise part exceeds a specified value,
The upper member and the lower member are separated, and the guide rail can cope with relative displacement between the low-rise portion and the high-rise portion.

[0010]

Further , when a large earthquake occurs, the first connecting member is broken, so that the upper member and the lower member are separated.

An elevator structure according to a second aspect of the present invention is the elevator structure according to the first aspect, wherein the connecting portion has a configuration in which the upper member and the lower member are joined via a second connecting member, The second connecting member and at least one of the upper member and the lower member are rubbed against each other so that slip occurs when the relative displacement between the lower layer portion and the higher layer portion becomes equal to or more than the predetermined value. It is characterized by being joined.

Due to this structure, during a large earthquake, slippage occurs between the second connecting member and one of the upper and lower members, which separates the upper and lower members. The Rukoto.

[0014]

[0015]

[0016]

[0017]

The elevator structure according to claim 3, wherein is an elevator arrangement according to claim 1 or 2, wherein the support device includes a first support member attached to said intermediate seismic isolation building side, the guide A second support member attached to the rail side is configured to be coupled by a bolt, and the bolt has a first elongated hole provided in the first support member and the second support member. The first elongated hole is provided in a direction orthogonal to the first elongated hole and is inserted through both of the second elongated holes, and the first and second support members have first and second directions.
Relative displacement in two orthogonal horizontal directions along the second slot
The feature is that it is allowed .

[0019] With this configuration, since at the time of earthquake, bolt, by moving the first and second long hole, relatively displaced in two directions in which the first and second supporting members are perpendicular to each other, guide Between the rail and the intermediate seismic isolation building
It is possible to allow relative displacement in the horizontal direction between the two .

The elevator structure according to claim 4 is the elevator structure according to claim 1 or 2 , wherein one end of the support device in the axial direction is attached to the intermediate seismic isolation building, and the other end thereof is the above-mentioned. Through the first and second vibration isolator attached to the guide rail, it is configured to support the guide rail from the intermediate seismic isolation building side, the first and second vibration isolator, Both of them are deformable in the axial direction and are arranged such that the axial directions thereof are orthogonal to each other.

With this structure, the guide rails and the intermediate base isolation building can be relatively displaced in the directions orthogonal to each other by the deformation of the first and second vibration isolator.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a vertical cross-sectional view of an intermediate seismic isolation building 2 to which an elevator structure 1 according to an embodiment of the present invention is applied. This intermediate seismic isolated building 2 has a low-rise part 3,
It consists of a high-rise part 5 supported by a low-rise part 3 via a base-isolation layer 4, and the elevator structure 1 passes from the low-rise part 3 through the base-isolation layer 4 to reach the high-rise part 5. Has been formed. The elevator structure 1 is provided with a hoistway 7 for the cage 6 to continuously move up and down. Inside the hoistway 7, a guide rail for guiding the cage 6 when the cage 6 moves up and down. 8 are provided.

The guide rail 8 is formed by connecting the lower member 9 and the upper member 10 to each other via a connecting portion 11. The lower member 9 has its lower end portion 9a fixed to the lower layer portion 3, and the upper member 10 has its upper end portion 10a fixed to the higher layer portion 5. In addition, in the guide rails 8, fixed upper and lower regions of the connecting portion 11 are supported from the intermediate seismic isolated building 2 side via a support device 12.

FIG. 1 shows a connecting portion 11 located in the seismic isolation layer 4.
It is an enlarged view of the vicinity of. As shown in FIG. 1, the connecting portion 11 includes the upper end 9 b of the lower member 9 and the upper member 1.
The lower end 10b of 0 is connected via a lead damper (first connecting member) 13. In addition, the support device 12
Is configured to support the guide rail 8 from the beam 14 fixed to the intermediate seismic isolation building 2.

The structure of the connecting portion 11 is further enlarged and shown in FIG. As shown in the figure, brackets 15 and 15 are fixed to the lower end 10b of the upper member 10 and the upper end 9b of the lower member 9, respectively, and the lead damper 13 includes the brackets 15 and 1.
It is configured to be inserted into the through holes 16 formed in 5 and extend vertically. Also, the lead damper 13
When the shearing force at break is smaller than that of the upper member 10 and the lower member 9, and when the relative displacement between the low layer portion 3 and the high layer portion 5 becomes a predetermined value or more, it is plastically deformed and finally It has the property of breaking.

Further, FIG. 4 shows details of the structure of the supporting device 12. The support device 12 has a structure in which a first support member 18 fixed to the beam 4 and a second support member 19 attached to the guide rail 8 are coupled by a bolt 20. FIG. 5 is a diagram showing a situation when the support device is viewed from above. As shown in this figure, the bolt 20 is
The first elongated hole 21 provided in the first support member 18 and the first elongated hole 2 provided in the second support member 19
It is inserted into both of the second elongated holes 22 formed so that the direction orthogonal to 1 is the longitudinal direction.

Next, the operation will be described. In the elevator structure 1 as described above, the support device 12 is configured to support the guide rails 8 in the upper and lower fixed regions of the coupling portion 11, but here, the support device 12 is orthogonal to each other. Since the first supporting member 18 and the second supporting member 19 are connected to each other by the bolt 20 inserted into the long hole 21 and the second long hole 22, the supporting device 1
2, the bolt 20 has the first and second slots 2
By moving inside the first and second support members 18 and 19, the first and second support members 18 and 19 are moved to the first and second elongated holes 21 and 22.
Relative displacement is permitted in two horizontal directions orthogonal to each other.

Therefore, at the time of an earthquake, the supporting device 12 is
The guide rail 8 and the intermediate seismic isolation building 2 function to allow relative displacement in the horizontal direction, whereby when the guide rail 8 is deformed as the intermediate seismic isolation building 2 is deformed,
It is possible to avoid excessive load on the guide rail 8. Therefore, the guide rail 8 can be smoothly deformed within the elastic deformation range as long as the magnitude of the earthquake is small or small. If the deformation of the guide rail 8 stays within the elastic range, after the earthquake, the guide rail 8
Returns to its original position due to its own restoring force.

Further, when a large earthquake occurs, the relative displacement between the low-rise portion 3 and the high-rise portion 4 becomes a predetermined value or more, and in this case, the lead damper 13 is plastically deformed and fractured, and The member 10 and the lower member 9 are separated. Thereby, the upper member 10 and the lower member 9 can move separately above and below the seismic isolation layer 4, and damage to the guide rail 8 can be prevented to a minimum. Also, after the end of the large earthquake, the lower end 10b of the upper member 10 and the lower member 9 are again
It is possible to restore the current state by connecting the upper end 9b of the above with the lead damper 13 and performing fine adjustment for slight residual deformation of the upper member 10 and the lower member 9.

In the elevator structure 1 described above, the guide rail 8 can smoothly deform and follow a comparatively small deformation during a small earthquake.
Further, for a large deformation at the time of a large earthquake, the connecting portion 11 can be intentionally separated to take a separate movement. As a result, in the event of a large earthquake, damage can be prevented to a minimum, and even in the case of a small or medium earthquake,
In order for the guide rail 8 to be deformed to the elastic range and to return to its original shape,
After the earthquake, it is possible to quickly return to the current state and resume operation, and the response to the earthquake is good.

In the elevator structure 1 described above, the connecting portion 11 has a smaller shearing force at break than the upper member 10 and the lower member 9, and the relative displacement between the lower layer portion 3 and the higher layer portion 5 is relatively small. Since the upper member 10 and the lower member 9 are connected by a lead damper 13 that breaks when the value exceeds a predetermined value, the lead damper 13
The upper member 10 and the lower member 9 can be separated by a simple mechanism in the event of a large earthquake.

In the elevator structure 1 described above, the bolt 20 moves in the first and second elongated holes 21 and 22 so that the first and second supporting members 18 and 18 are formed.
Since 19 can be relatively displaced in two horizontal directions orthogonal to each other, the support device 12 can be appropriately deformed to follow the relative displacement between the guide rail 8 and the intermediate seismic isolation building 2. As a result, the guide rail 8 can be smoothly deformed to follow the deformation of the intermediate base-isolated building 2 within the elastic deformation range, and the guide rail 8 can be restored to its original position by its own restoring force after a small or medium earthquake. It is possible to return to.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and other configurations may be adopted as necessary. For example, the structure of the connecting portion 11 is not limited to the one shown in FIG. 1, and as shown in FIG. Member 1
0 and the lower member 9 may be connected. In this case, the cross-section missing portion 25 of the connecting member 24 is
Since the breaking shear force is smaller than that of other portions, the cross-section missing portion 25 of the connecting member 24 is broken at the time of a large earthquake, which makes it possible to obtain the same effect as that of the above-described embodiment. .

Further, the connecting portion 11 can be constructed as shown in FIGS. 7 and 8. The connecting portion 11 has a configuration in which the upper member 10 and the lower member 9 are joined via the second connecting member 27. The second connecting member 27 and the lower member 9 and the upper member 10 are fixed by friction joining with bolts 28 and 29, but the bolt 29 that fixes the upper member 10 and the second connecting member 27 is It is formed on the second connecting member 27 and extends vertically, and
It is inserted into a loose hole 30 whose upper part is open.
Further, the frictional fixing between the second connecting member 27 and the upper member 10 has such strength as to cause slipping when the relative displacement of the low layer portion 3 and the high layer portion 5 exceeds a predetermined value.

With such a structure, when a large earthquake occurs, slippage occurs between the second connecting member 27 and the upper member 10, which causes the bolt 29 inserted into the loose hole 30. Comes out from the open upper end of the loose hole 30, and the second connecting member 27 and the upper member 10
Are separated. Therefore, at the time of a large earthquake, the lower member 9 and the upper member 10 can be separated, and the same effect as that of the above-described embodiment can be obtained.

In this case, a loose hole having an open lower end and extending vertically is provided in the lower portion of the second connecting member 27, and a bolt 28 for fixing the lower member 9 and the second connecting member 27 is provided. The same effect can be obtained by inserting the loose hole.

Alternatively, the connecting portion 11 may be constructed as shown in FIG. In FIG. 9, the upper member 10 and the lower member 9 are connected to each other by a steel rod (first connecting member) 32 having excellent deformability. Stoppers 33 are provided at the upper and lower ends of the steel rod 32. Further, the steel rod 32 is configured to be inserted into a through hole (not shown) provided for the brackets 34, 34 protruding from the upper member 10 and the lower member 9, and between the bracket 34 and the stopper 33. By arranging the spring (restoring force applying member) 35 in a compressed state,
The vertical position of the steel rod 32 is fixed.

When such a structure is adopted, the upper member 1
When the 0 and the lower member 9 are separated, the spring 35 causes a restoring force in a direction opposite to the separating direction. As a result, the upper member 10 and the lower member 9 during a small or medium earthquake
When the is relatively displaced in the separating direction, this relative displacement can be restored by the spring 35. Further, at the time of a large earthquake, the steel rod 32 is plastically deformed and fractured, so that the same effect as that of the above-described embodiment can be obtained. This makes it possible to respond well to earthquakes of all sizes.

The structure of the supporting device 12 is shown in FIG.
You may make it employ | adopt the thing as shown in 0,11,12. In the support device 12 shown in these figures, the first bracket 37 is provided on the guide rail 8 side, and the fixing member 3 fixed to the first bracket 37 and the beam 14.
8 is connected in the horizontal direction by an oil damper (first vibration isolator) 39. An oil damper (second vibration isolator) 42 is also arranged between the rib member 40 fixed to the beam 14 and the second bracket 41 fixed to the guide rail 8. Also, the oil damper 42
The second bracket 41 and the second bracket 41 are simply brought into contact with each other in the axial direction of the oil damper 42 (the y direction in FIG. 11). Therefore, the oil damper 42 and the second bracket 41 are in contact with each other.
The relative displacement in the direction (z direction in FIG. 12) that is orthogonal to the y direction between and is set to be allowed. Further, the oil damper 42 is arranged such that its axial direction (z direction in FIG. 12) is orthogonal to the axial direction of the oil damper 38 (y direction in FIG. 12).

The supporting device 12 shown in FIGS.
Function to allow relative displacement in the horizontal direction between the guide rail 8 and the intermediate seismic isolated building 2 by deforming the oil dampers 39 and 42 in the z direction and the y direction, respectively, during an earthquake. Therefore, when the guide rail 8 is deformed following the deformation of the intermediate seismic isolation building 2, it is possible to prevent the guide rail 8 from being overloaded. As a result, the same effect as that of the above embodiment can be obtained.

In addition to this, in the support device 12 shown in FIGS. 10 to 12, the oil damper 39,
Since 42 exerts the anti-vibration function, it is possible to obtain the anti-vibration function such as the lateral blur prevention of the guide rail 8 at the time of a small or medium earthquake.

The same effect can be obtained by using a coil spring, a spring hanger, or a mechanical snapper instead of the oil dampers 39 and 42.

[0043]

As described above, in the elevator structure according to the first aspect of the present invention, the guide rail can smoothly deform and follow the relatively small deformation of the intermediate base-isolated building during a small earthquake. In addition, for a large deformation during a large earthquake, it is possible to intentionally separate the joints and take separate movements. This will prevent damage to the guide rails in the event of a large earthquake, and even in the case of a small or medium earthquake, the guide rails will be deformed to the elastic range and will return to their original state. The current state can be restored and operation can be restarted, and the response to an earthquake is good.

In addition, the connecting portion is broken when the shearing force at break is smaller than that of the upper member and the lower member and the relative displacement between the lower layer portion and the higher layer portion exceeds a predetermined value. Since the upper member and the lower member are connected by the connecting member, the upper member and the lower member can be separated from each other in the event of a large earthquake by a simple mechanism.

The elevator structure according to claim 2, occurs a second coupling member, at least one bets of the upper member and the lower member, the sliding when the relative displacement between the lower floors and the high rise portion becomes a predetermined value As described above, due to the friction-bonding to each other, a slippage occurs between the second connecting member and one of the upper member and the lower member during a large earthquake, which separates the upper member and the lower member. It will be. Therefore, it is possible to separate the upper member and the lower member in the event of a large earthquake with a simple mechanism.

[0046]

[0047]

In the elevator structure according to the third aspect , the bolt moves in the first and second elongated holes, whereby the first and second support members are relatively displaced in two horizontal directions orthogonal to each other. Therefore, the support device can be deformed to follow the relative displacement between the guide rail and the intermediate seismic isolated building, which allows the guide rail to deform against the deformation of the intermediate isolated building. Therefore, it is possible to smoothly follow the deformation within the elastic deformation range. As a result, the invention according to claims 1 and 2 can be satisfactorily realized with a simple configuration.

In the elevator structure according to the fourth aspect , the relative displacement in the horizontal direction between the guide rail and the intermediate base-isolated building is caused by the deformation of the first and second vibration isolator in the respective axial directions. Therefore, when the guide rail is deformed following the deformation of the intermediate base-isolated building, it is possible to avoid an excessive load on the guide rail. This makes it possible to favorably realize the inventions according to claims 1 and 2 . further,
Since the vibration proof device has a vibration proof function, it is possible to prevent lateral blurring of the guide rail.

[Brief description of drawings]

FIG. 1 is an enlarged elevational view of a constant upper and lower region of a connecting portion in an elevator structure according to an embodiment of the present invention.

FIG. 2 is an elevation view of an intermediate base-isolated building to which the elevator structure according to the embodiment of the present invention is applied.

FIG. 3 is an enlarged elevational view of the connecting portion shown in FIG. 1.

FIG. 4 is an enlarged elevational view of the support device in the elevator structure.

5 is a plan view showing a situation when the support device shown in FIG. 4 is viewed from above. FIG.

FIG. 6 is an elevation view of a connecting portion showing another embodiment of the present invention.

FIG. 7 is an elevational view of a connecting portion according to still another embodiment of the present invention.

FIG. 8 is a side view of the same.

FIG. 9 is an elevation view of a connecting portion showing still another embodiment of the present invention.

FIG. 10 is an elevational view of a supporting device showing another embodiment of the present invention.

11 is a cross-sectional view taken along the line I-I of FIG.

12 is a sectional view taken along the line II-II in FIG.

FIG. 13 is an elevation view of an elevator shaft showing a conventional technique of the present invention.

14 is a perspective view of a sub-frame applied to the elevator shaft shown in FIG.

[Explanation of symbols]

1 Elevator structure 2 Intermediate seismic isolation building 3 Lower part 4 seismic isolation layer 5 High rise 7 hoistway 8 guide rails 9 Lower member 9a Lower end 9b upper end 10a upper end 10b bottom 10 Upper member 11 Connection 12 Support device 13 Lead damper (first connecting member) 18 First support member 19 Second support member 20 volts 21 First slot 22 Second slot 27 Second connection member 32 steel rod (first connecting member) 39 Oil damper (first vibration isolator) 42 Oil damper (second vibration isolator)

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) B66B ⁷ /00-7/12 E04H 9/02 301

Claims (4)

(57) [Claims] 1. An elevator that is applied to an intermediate seismic isolation building having a low-rise portion and a high-rise portion supported by the low-rise portion via a base-isolation layer, and that continuously elevates and lowers in the low-rise portion and the high-rise portion. A guide rail is disposed inside a hoistway formed so as to pass through the seismic isolation layer from the inside of the low-rise portion to reach the inside of the high-rise portion, and the guide rail has at least a lower end thereof. Part is formed by vertically connecting a lower member fixed to the lower layer part and an upper member at least the upper end of which is fixed to the higher layer part, the lower end of the upper member and the lower part. The upper end of the member is connected via a connecting portion located in the seismic isolation layer, and the connecting portion is broken as compared to the upper member and the lower member.
The shearing force at the time is small, and
When the relative displacement between the high-rise parts exceeds the predetermined value
Via the first connecting member that is broken into
The lower member is vertically connected, and when the relative displacement between the lower layer portion and the higher layer portion is equal to or more than a predetermined value, the upper member and the lower member are separated from each other, and the guide rail is The elevator structure is supported from the side of the intermediate seismic isolated building through a supporting device that allows relative displacement between the guide rail and the intermediate seismic isolated building in a certain area above and below the connecting portion. . 2. The elevator structure according to claim 1, wherein the connecting portion connects the upper member and the lower member to a second connecting member.
The second connecting member is configured to be joined via a member.
And at least one of the upper member and the lower member,
The relative displacement between the low-rise part and the high-rise part is the predetermined value.
If the above conditions occur, frictional contact with each other
Elevator structure characterized by being combined. 3. The elevator structure according to claim 1, wherein the support device is attached to the intermediate seismic isolation building side.
Attached to the first support member and the guide rail side
The second support member is connected with a bolt.
And the bolt has a first length provided on the first support member.
A hole and the first elongated hole provided in the second support member
With the second elongated hole whose direction is orthogonal to
Inserted in both, along the first and second elongated holes of the first and second support members
It is configured to allow relative displacement in two orthogonal horizontal directions.
Elevator structure characterized by being. 4. The elevator structure according to claim 1, wherein one end of the support device in the axial direction is the intermediate seismic isolation building.
Attached to the guide rail at the other end.
Via the attached first and second vibration isolator, the intermediate
The guide rail is supported from the seismic isolated building side.
Is, the first and second vibration isolators are both variable in the axial direction
Shaped and their axes are orthogonal to each other
Elevator structure characterized by being arranged in the direction
Structure.