JPH1162151A - Mounting structure of connecting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize the mounting structure of a connecting structure by smoothly following up even relative displacement generated between both structures while bearing the load of the connecting structure bridged between the structures relatively displaced in the horizontal direction by both structures. SOLUTION: The mounting structure of the connecting structure is bridged between structures relatively displaced in the horizontal direction when it receives vibrations. One end section 3a of the connecting structure 3 is installed rotatably to one structure by a pivot shaft 4, and the other end section 3b of the connecting structure 3 is mounted slidably to the other structure through a plain bearing in the circumferential direction centering around the pivot shaft 4 and in the contacting and detaching direction to the other structure at that time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a connecting structure such as a staircase installed between upper and lower floors of a base-isolated structure in a base-isolated structure.

[0002]

2. Description of the Related Art A seismic isolation structure with a seismic isolation device interposed between the upper and lower skeletons straddling the seismic isolation device, between a seismic isolation structure and a non-seismically isolated structure, or structurally. When an earthquake occurs between two independent structures, relatively different displacement motions occur due to the seismic force. For this reason, when a connecting structure such as a staircase or a passage is erected between these structures, it is necessary to adopt a configuration in which the connecting structure follows the relative displacement between the structures.
Therefore, when erection of this kind of communication structure conventionally,
An attachment structure is employed in which one end of the connecting structure is fixed to one structure, and the other end is disposed with a gap formed without being connected to the other structure.

According to such a conventional connection structure mounting structure, when an earthquake occurs, the connection structure is connected to one of the structures between the upper and lower frames and the structures independent from each other over the seismic isolation device. By acting integrally, the other end is relatively displaced with respect to the other structure without interfering with the other structure, so that it is possible to follow a horizontal relative displacement generated between the two structures.

[0004]

However, in the above-mentioned conventional mounting structure for a communication structure, the connection structure is in a cantilevered state because the connection structure is a projecting structure in which the connection structure is fixed to one of the structures. Therefore, the rigidity of the structural member must be increased in terms of strength. For this reason, there is a problem that the entire communication structure becomes large, and further, there is a problem that it cannot be applied to an escalator or the like that uses many mechanical parts that dislike bending deformation. Moreover, since the load of the connecting structure is supported only by one of the structural parts, the self-weight of the connecting structure is increased, and the strength of the mounting portion of the connecting structure in the one of the structures is greatly increased. As a result, there is a problem in that the weight of the structural member is increased due to the design, resulting in an increase in cost, or inconvenience in connection with surrounding structural members and equipment members.

SUMMARY OF THE INVENTION The present invention has been made to effectively solve the problems of such a conventional connecting structure mounting structure, and can smoothly follow a relative displacement generated between the two structures. An object of the present invention is to provide a mounting structure for a communication structure, in which a load of a communication structure installed between structures that are relatively displaced in the horizontal direction can be supported by the two structures, and thus can be reduced in size. Is what you do.

[0006]

According to the first aspect of the present invention, there is provided a connecting structure mounting structure for a communication structure which is installed between structures which are relatively displaced in a horizontal direction when subjected to vibration. One end of a connecting structure is rotatably provided on one structure by a pivot, and the other end of the connecting structure is provided on the other structure in a circumferential direction around the pivot and the other end of the connecting structure. It is characterized by being provided slidably via a sliding bearing in the direction of coming and going with respect to the structure. Here, the invention according to claim 2 is characterized in that the connecting structure is a stair, an escalator or a passage erected between structures that can be relatively displaced in the horizontal direction.

In the mounting structure for a communication structure according to the first or second aspect, when an earthquake causes a relative displacement in the horizontal direction between the structures on which the communication structure is erected, the communication structure is mounted. It behaves integrally with one of the structures mounted by the pivot. Then, for another structure that behaves differently from this in the horizontal direction, the other end of the connecting structure rotates around the pivot via a sliding bearing and contacts the other structure. By sliding in the separating direction, it is relatively displaced in both the X and Y directions in the horizontal plane and follows the displacement.

As described above, according to this mounting structure, even when a large vibration is received due to an earthquake or the like, the connecting structure can smoothly follow the horizontal relative displacement generated between the two structures. . Moreover, since the load of the connecting structure is supported by the two structures, the size and weight of the structural members can be reduced as compared with the conventional structure, and an electromechanical component such as an escalator is provided between the two structures. It is also possible to build a communication structure that incorporates In addition, there is no need to increase the strength of the mounting portion in these structures, and therefore, the economy is excellent.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a connecting structure for a connecting structure according to the present invention, in which a staircase 3 is installed between structures 1 and 2 which are relatively displaced in a horizontal direction when subjected to vibration. 1 shows a first embodiment applied to the mounting structure of FIG. Here, one of the structures 1 is, for example, one of an upper frame that straddles a seismic isolation device in a seismic isolation structure or two structurally independent structures, and the other structure 2 is, for example, the seismic isolation device. The lower frame below the device or the other of the two independent structures.

The stairs (connecting structure) 3 has an upper landing (one end) 3 a having a pivot 4 on one of the structures 1.
It is attached so that it can rotate freely. In addition, the lower landing (the other end) 3b of the stairs 3 is formed by sliding bearings.
As shown in FIG. 1, a concave mounting portion 5 formed on the other structure 2 is provided so as to be slidable in a circumferential direction around the pivot 4. Further, as shown in FIG. 2, between the rising portion 5a of the mounting portion 5 and the lower end of the stairs 3,
A clearance 6 corresponding to the maximum relative displacement amount in an assumed earthquake is formed, whereby the lower landing 3b of the staircase 3 is provided so as to be slidable in the direction of coming and going with respect to the other structure 2. I have. As the sliding bearing, a metal plate made of stainless steel or the like is fixed to one of the mounting portion 5 and the lower surface of the lower landing 3a, and a sliding member such as Teflon is fixed to the other, or a roller is interposed. What was done is applicable.

FIGS. 3 and 4 show a second embodiment in which the present invention is applied to a mounting structure of an escalator 10 installed between structures similar to the first embodiment. In this embodiment, the escalator (communication structure) 1
An upper elevating part (one end) 10a is rotatably attached to one structure 1 by a pivot 11, and a lower elevating part (the other end) 10b is connected to the other structure via a sliding bearing. As shown in FIG. 3, a concave mounting portion 5 formed on the object 2 is provided so as to be slidable in the circumferential direction around the pivot 10. Further, as shown in FIG. 4, the lower elevating portion 10 b is also moved in a direction in which the lower elevating portion 10 b comes into contact with or separates from the other structure 2 by a clearance 6 formed between the rising portion 5 a of the mounting portion 5. It is slidably provided.

FIGS. 5 and 6 show a connecting structure for a connecting structure according to the present invention, in which a passage 15 is installed horizontally between structures 1 and 2 which are relatively displaced in a horizontal direction when subjected to vibration. 13 shows a third embodiment applied to a structure. In this case, one of the structures 1 is, for example, one of a seismic isolation structure provided with a seismic isolation device or two structurally independent structures, and the other structure 2 is provided with a seismic isolation device. An unmounted structure or the other of two independent structures. Also in this embodiment, one end 15a of the passage (communication structure) 15 is rotatably attached to one structure 1 by the pivot 16 and the other end 15b is connected to the other structure 1 via a sliding bearing. The concave mounting portion 5 formed on the structure 2 is provided slidably in the circumferential direction around the pivot 16. The other end portion 15b is also slidably provided in a direction in which the other end portion 15b comes into contact with and separates from the other structure 2 by a clearance 6 formed between the mounting portion 5 and the rising portion 5a.

The communication structures 3, 10,
In the mounting structure 15, when an earthquake causes a relative displacement in the horizontal direction between the structures 1 and 2 on which the connecting structures 3, 10 and 15 are erected, the connecting structures 3 and 1 are used.
0,15 behave integrally with one of the structures 1 mounted by the pivots 4,11,16. Then, for other structures 2 that behave differently in the horizontal direction, as shown by dotted lines in FIGS.
The other end portions 3a, 10a, and 15a of the rotary member 15 rotate around the pivots 4, 11, and 16 via sliding bearings, and come into contact with and separate from other structures 2 as shown in FIGS. By sliding in the direction, it is relatively displaced in both the X and Y directions in the horizontal plane and follows the displacement.

Therefore, according to the above-described mounting structure, even when all of the structures are subjected to a large vibration due to a large earthquake or the like, the connecting structures 3, 10, and 15 are not affected by the relative displacement in the horizontal direction generated between the structures 1 and 2. It can follow smoothly. Also,
Since the loads of the connecting structures 3, 10, 15 can be supported by the two structures 1, 2 in terms of structure, the structural members constituting the connecting structures 3, 10, 15 can be made smaller and lighter than the conventional structure. And it is not necessary to increase the strength of the mounting portions of the connecting structures 3, 10, 15 in the structures 1, 2. As a result, it is also possible to build a connecting structure including an electromechanical component such as the escalator 10 described above between the two structures 1 and 2.

In the above-mentioned embodiment, the upper ends 3a, 10a,
Although the description has been given only of the case where the rotary shaft 15a is rotatably provided by the pivot 4, the present invention is not limited to this. The lower end portions (one end portions) 3b, 10b, and 15b are rotatably provided by the rotary shaft, and Part side (the other end) 3a, 10a,
15a may be slidably provided via a sliding bearing in a circumferential direction around the pivot and in a direction approaching / separating from the structure.

[0016]

As described above, claim 1 or claim 2
According to the mounting structure of the communication structure described in (1), one end of the communication structure is rotatably provided by a pivot on one of the structures that are relatively displaced in the horizontal direction at the time of an earthquake or the like, and the communication structure is mounted on the other structure. The other end of the connecting structure is slidably provided via a sliding bearing in a circumferential direction about the pivot axis and in a direction of approaching and separating from the other structure, so that when a large earthquake occurs, the connecting structure Is rotated about a pivot and slides in a direction of coming and going with other structures, so that it can be relatively displaced in both X and Y directions in a horizontal plane to smoothly follow. In addition, since the load of the connecting structure is structurally supported by both structures, it is possible to reduce the size and weight of the structural members, and to connect the electromechanical parts such as escalators between the two structures. It is also possible to construct a structure, and in addition, there is no need to increase the strength of a mounting portion in these structures, so that an effect of being excellent in economy is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view showing a second embodiment of the present invention.

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a plan view showing a third embodiment of the present invention.

FIG. 6 is a side view of FIG. 5;

[Description of Signs] 1 One structure 2 The other structure 3 Stairs (communication structure) 3a Upper landing (one end) 3b Lower landing (other end) 4, 11, 16 Axis 10 Escalator (communication structure) 10a Upper Elevating part (one end) 10b Lower elevating part (other end) 15 Passage (communication structure) 15a One end 15b Other end

Claims (2)

[Claims] 1. A structure for mounting a communication structure, which is installed between structures that are relatively displaced in a horizontal direction when subjected to vibration, wherein one end of the communication structure is turned around one of the structures by a pivot. The other end of the connecting structure is slidably mounted on the other structure by sliding the other end of the connecting structure in a circumferential direction about the pivot axis and in a direction of moving toward and away from the other structure. An attachment structure for a communication structure, which is provided freely. 2. The mounting structure for a communication structure according to claim 1, wherein the communication structure is a stair, an escalator, or a passage erected between structures that are relatively displaceable in a horizontal direction.