JPH10316325A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To merely deform a buffer material and prevent a support structure from being brought into direct contact with a non-base-isolation building when a rocking motion occurs by providing the buffer material between the support structure supporting a base isolation building side and the non-base-isolation building. SOLUTION: A buffer material 33 is provided between the lowermost end of a support structure 11U and a partition wall 5 to prevent the lowermost end of the support structure 11U from being brought into direct contact with the partition wall 5 or from colliding with it. The buffer material 33 absorbs the change of the interval in the lateral direction between the lowermost end of the support structure 11U and partition wall 5 when a base isolation building 8 generates a rocking motion. The lowermost end of the support structure 11U is deformed before it is brought into contact with the partition wall 5. The support structure 11U is warped in advance by its deforming force, and the concentration of stress at the connecting portion of the support structure 11U to the base isolation building 8 side is mitigated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus, and more particularly to an elevator apparatus suitable for a configuration in which a seismically isolated hoistway is extended into a non-seismic building.

[0002]

2. Description of the Related Art In order to reduce the influence of an earthquake, a seismic isolation building having a plurality of floors is generally installed on a foundation via a seismic isolation device. However, recently, in consideration of the effective use of land, a non-seismic building with multiple floors has been constructed underground, and based on this non-seismic building, the seismic isolation An object is installed, and an elevator hoistway is installed on the seismic isolation building side, and the lower part of this hoistway is penetrated into the non-seismic building so that shaking during an earthquake is not transmitted to the hoistway. (Japanese Patent Publication No. 5-49595)
No.).

[0003]

Although the above prior art is considered to eliminate the shaking of the hoistway during an earthquake, the above prior art is not compatible with a non-seismic isolated building due to the rocking motion of the seismic isolated building side structure. No consideration is given to contact or collision.

An object of the present invention is to provide an elevator apparatus in which a seismically isolated building-side structure is prevented from contacting a non-seismic isolated building by a rocking motion during an earthquake.

Another object of the present invention is to provide an elevator apparatus which is not damaged even if the seismically isolated building side structure comes into contact with a non-seismic isolated building due to rocking motion during an earthquake. .

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a non-seismic isolated building and a seismic isolated building installed on the non-isolated building via a seismic isolation device. In an elevator apparatus configured to raise and lower a car over the same, a support structure suspended from the seismic isolated building is extended into the non-seismic isolated building, and the support structure and the seismic isolated building are extended. Support a guide rail for guiding the elevator up and down,
In addition, a cushioning material is provided between the support structure and the non-seismic building.

As described above, the cushioning member is provided between the non-seismic building and the supporting structure on the seismic isolation building side.
Even if the rocking motion occurs, the supporting structure will not directly contact the non-seismic building simply by deforming the cushioning material. Also, even if the supporting structure comes into contact with the non-seismic building, the supporting structure is easily deformed, so that the stress does not concentrate on the connection between the supporting structure and the seismic isolation building. It does not lead to damage.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIG.
This will be described with reference to FIG.

The non-seismic building 2 buried in the basement 1 has a plurality of spaces 2A through a cylindrical partition wall 5 which penetrates an outer wall 3, a floor 4, and a support structure to be described later, and partitions a space in which a car ascends and descends. 2C is formed. The lower end of the cylindrical partition wall 5 extends below and projects below the floor 4 forming the lowermost space 2A, and a bottom wall 6 is provided at the projecting lower end to prevent infiltration of groundwater. Of course, the entire non-seismic building 2 is built on a pile or the like driven into the ground, and is prevented from sinking.

On the other hand, the top of the non-seismic building 2 is
The seismic isolation building 8 is installed through a plurality of seismic isolation devices 7 made of laminated vibration isolating rubber or the like. In this seismic isolation building 8, a plurality of spaces 8 </ b> A to 8 </ b> D are formed by an outer wall 9, a floor 10, and a hoistway 11, and a cylindrical partition wall 5 of the non-seismic isolated building 2 is provided at a lower end of the hoistway 11. A support structure 11U that extends inside and supports a later-described guide rail is suspended.

The hoistway 11 of the seismic isolation building 8
Is constructed simultaneously with the construction of the base-isolated building 8 by a well-known construction method, but the support structure 11U may be constructed simultaneously with the construction of the base-isolated building 8, and You may make it assemble and suspend it below the seismic isolation building 8 later.

Since the support structure 11U is suspended from the lower part of the seismic isolation building 8, the support structure 11U has a frame structure including a plurality of vertical beams VB and horizontal beams HB in order to reduce the weight. ing.

As is well known, a machine room 12 is provided at the top of the hoistway 11, and a hoisting machine 13 is installed therein. A rope 14 is wound around the drive sheave of the hoisting machine 13 in a hanging manner. A car 15 is connected to one end of the rope 14, and a counterweight 16 is connected to the other end. Further, a guide rail 17 for guiding the elevation of the car 15 is supported across the hoistway 11 and the support structure 11U.

A shock absorber 18 is provided on the bottom wall 6 of the partition wall 5 for stopping the car 15 when the car 15 falls. The shock absorber 18 is provided via a sliding means 6B such as a combination of one-way bearings in two directions so as to be able to move horizontally on the bottom wall 6 with a small force. The lower end is engaged so as to follow only in the horizontal direction.

In addition, entrance / exit portions 8a to 8d are formed in the hoistway 11 so as to face the floors 10, and the entrance / exit portions 8a to 8d are closed to engage with the car doors 15D of the car 15 so as to be engaged.
Is provided.

The support structure 11U is provided at a position facing each floor 4 of the non-seismic isolated building 2 with frame-like entrances 11a to 11c.
Is formed, closing it, and car 1
A landing-side door device 19 that engages with the fifth car door 15D is provided. Entrance portions 2a to 2c are also formed in the partition wall 5 facing the entrance portions 11a to 11c, and no door is provided here.

In the above configuration, on the seismic isolation building 8 side,
When the car 15 has landed and the car door 15D is opened, the passenger can get on and off the car 15 immediately from each of the spaces 8A to 8D. However, on the non-seismic isolated building 2 side, even if the car 15 has landed and the car door 15D has been opened, there is a gap between the support structure 11U and the non-seismic isolated building 2; It is dangerous for passengers to get on and off. Therefore, the entrances and exits 11a to 11c of the support structure 11U and the entrances and exits 2 of the non-seismic isolated building 2
A boarding / alighting floor 20 is provided straddling a to 2c. The floor 20 is like a escalator tread, and the car 15
A plurality of cleats 21 along the direction of getting on and off the vehicle, and supported by support rollers 22 on a step 4G formed on the floor 4 near the entrances 2a to 2c so as to be easily displaced in the direction in which the cleats extend. (FIG. 3). A comb plate 4C projects from the floor 4 side and meshes with the cleat 21.

The platform 20 is guided by guide rollers 23 on both sides of the step 4G in the direction of the frontage of the car, and is regulated so as to move only in the direction of car entry and exit (cleat extending direction). (Fig. 4). In addition, getting on and off floor 20
On both sides in the direction of the car frontage, a slot 24 is provided along the direction of car entry and exit, and a guide pin 25 fixed on the step portion 4G is penetrated through the elongated hole 24 so that the boarding / alighting floor 20 can get on and off the car. The guide mechanism may be moved only in the direction, or a combination of these guide mechanisms may be used.

As shown in FIG. 3, the end of the floor 20 facing the support structure 11U is connected to the edges of the entrances 11a to 11c of the support structure 11U via a connector 26. In this connection structure, as shown in FIG. 5, a dovetail-shaped engagement groove 20 </ b> G whose inside is wider than the opening is formed horizontally at the end of the getting on / off floor 20, and a similar engagement groove 11 </ b> G is formed. It is formed parallel to the support structure 11U side, and engagement projections 26A and 26B provided at both ends of the connection tool 26 are fitted into and connected to these grooves. The engagement projections 26A, 26
B and the engaging grooves 11G and 20G have a circular cross section, and are formed so as to be slidable in the longitudinal direction of the engaging grooves 11G and 20G and also in the circumferential direction.

By installing the floor 20, the passengers on the support structure 11U and the floor 4 can be moved.
There are still gaps between the support structure 11U and the non-seismic building 2 on both sides of the elevator floor 20 in the direction of the car frontage, which is a problem for passenger safety. Therefore, as shown in FIGS. 2 and 6, in order to close the gaps on both sides of the elevator floor 20 in the direction of the car frontage, the entrances and exits 2 a to 2 of the non-seismic-isolated building 2 are extended from the entrances and exits 11 a to 11 c of the support structure 11 </ b> U. The movable wall 27 is provided so as to straddle 2c. The movable wall 27 is made of, for example, a cloth film or a thin steel plate reinforced with a metal wire, and one end of the movable wall 27 is provided with a hinge 28 formed with a margin capable of relatively moving in the longitudinal direction of the connecting shaft 29. To the entrances 11a to 11c. On the other hand, the other end of the movable wall 27 is wrapped around the guide columns 30 and 31 installed on the periphery of the entrances 2 a to 2 c of the non-seismic isolated building 2 and in the vicinity thereof, and is connected to the fixed part via the tension spring 32. doing.

With the above construction, the base-isolated building 8
Even if there is a gap between the support structure 11U supported on the side and the partition wall 5 of the non-seismic isolated building 2, since the getting on / off portion is surrounded by the getting on / off floor 20 and both movable walls 27, There is no problem in getting on and off the passengers, and the passengers can get on and off safely.

In the above configuration, during an earthquake, the non-seismic building 2 buried underground 1 rolls in the same way as the ground, but the seismic isolation building 8 is installed via the seismic isolation device 7. The roll is avoided or the roll is kept small. Therefore, the non-seismic building 2 and the non-seismic building 8 are relatively displaced, and in particular, the support structure 11U and the non-seismic isolating building 2 supported by the Since they are adjacent to each other, they collide if there is no gap between them to absorb the roll. However, according to one embodiment of the present invention, since there is a gap between the two, the collision and the building due to the collision are caused. Damage to things is avoided.

The relative displacement between the non-seismic isolated building 2 and the seismic isolated building 8 is ± 300 to 400 mm in the horizontal direction. However, according to one embodiment of the present invention, the floor 20 is the first floor.
It is configured to be able to be displaced in the transverse direction and in a second transverse direction perpendicular to the transverse direction, and the displacement amount is the relative displacement amount ± 300 to 400
By setting the displacement amount to be able to cover mm, there is no breakage of the floor 20 due to the roll at the time of the earthquake, and it is possible to immediately get on and off the car 15 using the floor 20 immediately after the earthquake.

The movable walls 27 located on both sides of the elevator floor 20 in the direction of the car frontage also have the lateral relative displacements, so that the entrances 2a to 2c of the non-seismic isolated building 2 and the entrances and exits of the support structure 11U. The relative positions of the portions 11a to 11c are shifted,
Although the distance between the two is widened, the movable wall 27 pulled by the tension spring 32 is pulled out through the guide posts 30 and 31, so that the movable wall 27 is not damaged. 32 returns to the original state.

Although the above description takes into account only the displacement in the lateral direction during an earthquake, when the seismic isolation device 7 is made of a laminated vibration isolating rubber or the like, the displacement in the lateral direction (shear) is considered. (Deformation), it is displaced downward by 10 to 20 mm, and it is displaced upward by 5 to 10 mm due to the thrust of the earthquake.

The floor 20 is inclined by the circumferential sliding between the engaging projections 26A, 26B of the connecting member 26 and the engaging grooves 11G, 20G against such vertical displacement. No damage.

Further, since the movable wall 27 can absorb the above-mentioned vertical displacement by the hinge 28 formed with a margin capable of relatively moving in the longitudinal direction of the connecting shaft 29, it is not damaged.

As described above, according to the embodiment of the present invention, it is possible to obtain an elevator apparatus that can connect the non-seismic isolated building 2 and the isolated base structure 11U without damage even during an earthquake. it can.

When the seismic isolation device 7 is made of laminated rubber vibration insulators, it is displaced downward by 5 to 10 mm due to aging as well as lateral displacement.
For this reason, the facing positions of the entrances and exits 2a to 2c of the non-seismic isolated building 2 and the entrances and exits 11a to 11c of the support structure 11U are shifted up and down, and a step is generated. Since the projections 26A and 26B and the engagement grooves 11G and 20G slide and incline in the circumferential direction, they are not damaged.

The seismic isolation building 8 may cause a rocking motion during an earthquake in addition to the above displacements. In FIG. 1, for example, when the laminated rubber of the seismic isolation device 7 on the right side in FIG. 1 is compressed, the rocking motion of the seismic isolation building 7 on the left side is not compressed or expanded in the opposite direction. Numeral 8 is tilted to the right with respect to the seismic isolation device 7, and this is alternately repeated left and right. At this time, the lateral displacement of the top of the seismic isolation building 8 becomes maximum. However, there is no obstacle around the top of the base-isolated building 8, so there is no inconvenience. On the contrary, the support structure 1 suspended from the base-isolated building 8.
When 1U is tilted leftward with respect to the seismic isolation device 7, the lowermost end has the largest lateral displacement, and the support structure 1
Since there is a partition wall 5 of the non-seismic building 2 around 1U,
The lowermost end of the support structure 11U comes into contact with or collides with the partition wall 5. At this time, since the support structure 11U is composed of the vertical beam VB and the horizontal beam HB as described above, the support structure 11U is easily deformed by contact with the partition wall 5, and as a result,
Stress can be reduced from being concentrated on the connecting portion of the support structure 11U with the seismic isolation building 8 side, and the contact force to the partition wall 5 can be reduced by the deformation of the support structure 11U. Can be eliminated.

Note that the lowermost end of the support structure 11U is
It is better to provide a cushioning material 33 between the lowermost end of the support structure 11U and the partition wall 5 in order to avoid direct contact or collision. As shown in FIG.
When the base-isolated building 8 causes the rocking motion, the change in the horizontal distance between the lowermost end of the support structure 11U and the partition wall 5 is absorbed, and the lowermost end of the support structure 11U contacts the partition wall 5. Therefore, the supporting structure 11U is bent in advance by the deforming force, so that concentration of stress on the connecting portion of the supporting structure 11U with the seismic isolation building 8 side is relieved.

With the flexible structure of the support structure 11U,
Further, with the configuration taking into account the buffering action of the buffer material 33, it is possible to obtain an elevator apparatus which is not damaged by the rocking motion.

[0033]

As described above, according to the present invention, there is provided an elevator apparatus in which a guide rail support structure does not contact a non-seismic isolated building due to a rocking motion during an earthquake and does not break even if it does. Obtainable.

[Brief description of the drawings]

FIG. 1 is a schematic vertical sectional side view showing an embodiment of an elevator apparatus according to the present invention.

FIG. 2 is an enlarged cross-sectional plan view taken along the line II-II of FIG.

FIG. 3 is an enlarged view of a portion P in FIG. 1;

FIG. 4 is an enlarged perspective view showing a width direction end of the getting on / off floor shown in FIG. 3;

FIG. 5 is an enlarged perspective view showing an end portion in the getting on / off direction of the getting on / off floor shown in FIG. 3;

FIG. 6 is a perspective view showing a fixed portion of the movable wall shown in FIG. 2;

[Explanation of symbols]

2 ... non-seismic building, 5 ... partition wall, 7 ... seismic isolation device, 8 ... seismic isolation building, 11 ... hoistway, 11 U ... support structure, 15 ...
Cars, 17: guide rails, 20: getting on and off floors, 27: movable walls, 33: cushioning materials, VB: vertical beams, HB: horizontal beams.

Claims (5)

[Claims] An elevator apparatus configured to raise and lower a car over a non-seismic building and a seismic isolated building installed on the non-seismic building via a seismic isolation device,
Extending a support structure suspended from the seismic isolation building into the non-seismic building, supporting a guide rail that guides the raising and lowering of the car to the support structure and the seismic isolation building, An elevator apparatus, wherein a cushioning material is provided between the support structure and the non-seismic building. 2. A hoistway formed in a base-isolated building installed on a base-isolated building via a base-isolation device, and a hoistway supported by the base-isolated building and suspended in the base-isolated building. A lowered support structure, a guide rail that is supported and extended by the support structure and the hoistway of the seismic isolation building, and the non-seismically isolated building and the seismic isolated building guided by the guide rail An elevator apparatus comprising a car for raising and lowering a space, and a cushioning material provided between the support structure and the non-seismic building. 3. The elevator apparatus according to claim 2, wherein the cushioning member is arranged at a position for absorbing a lateral displacement of the support structure. 4. A hoistway formed in a seismic isolation building installed on a non-seismic isolated building via a seismic isolation device, and a hoistway provided in the non-seismic isolated building on an extension of the hoistway. A partition wall for partitioning a space in which the car ascends and descends, a support structure suspended from the seismic isolation building in a space surrounded by the partition wall, and laid across the support structure and the hoistway. An elevator apparatus, comprising: a guide rail for guiding the elevator car up and down; and a cushioning member provided between the support structure and the non-seismic building. 5. The non-seismic building has a plurality of floors, a space surrounded by the partition wall extends below a lowest floor, and a lower end of the support structure has a lower end. 5. The device according to claim 4, wherein the cushioning material extends in the space extending below the lower floor, and the cushioning material is disposed between the partition wall and a lower end of the support structure. 6. Elevator equipment.