JP2568212Y2 - Seismic isolation laminated rubber cover - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover structure for covering a seismic isolation laminated rubber.

[0002]

2. Description of the Related Art A seismic isolation structure building using seismic isolation laminated rubber must have the necessary anti-fire and fire resistance properties as in a general building. At present, there is almost no need to consider fire prevention and fire resistance because it is interposed between the ground and its foundation. However, the seismic isolation laminated rubber may be placed in a space used by many people from the viewpoint of design or layout of a building. In such a case, a cover for covering the seismic isolation laminated rubber is required from the viewpoint of fire prevention and fire resistance and also from the viewpoint of appearance. Therefore, in such a case, a cover is conventionally used as a cylindrical body that covers a plurality of panels made of a fireproof / fireproof material with screws and covers the seismic isolation laminated rubber.

[0003]

On the other hand, seismic-isolated laminated rubber requires periodic inspection, and extraordinary inspection is required when it is subjected to vibration exceeding a predetermined value. However, when the conventional cover as described above is used, in a high-rise building or the like, the diameter of the seismic isolation laminated rubber is increased and the number thereof is increased. Therefore, the size and weight of the cover are increased and the number is increased. Therefore,
At the time of regular inspection or extraordinary inspection, the work of attaching and detaching the cover
In addition, there is a problem that it takes a lot of labor and time to install and remove the screws, and it is not possible to easily and quickly perform a periodic inspection and an extraordinary inspection of the seismic isolation laminated rubber. The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a cover for a seismic isolation laminated rubber which can reduce work on the cover and efficiently perform an inspection operation of the seismic isolation laminated rubber. Is to do.

[0004]

According to the present invention, there is provided a cover structure for covering a seismic isolation laminated rubber interposed between an upper structure and a lower structure. Is provided with an opening and an opening / closing body for opening and closing the opening, and a deformable sealing material is interposed between at least one of the upper structure and the lower structure and the cover. . Further, the present invention is characterized in that the cover is made of fire-resistant transparent glass.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. First, the first embodiment will be described. FIG.
FIG. 1 is a cross-sectional plan view of a main part of the first embodiment, and FIG. 1B is a cross-sectional front view of the main part. 1 is a lower structure on the foundation side, 3 is an upper structure on the building side, 5 is a seismic isolation laminated rubber, and seismic isolation laminated rubber 5 is installed at a plurality of locations between the lower structure 1 and the upper structure 3. The seismic isolation laminated rubber 5 is mounted by attaching the upper and lower flanges 501 to the corresponding flange 101 of the lower structure 1 and the flange 301 of the upper structure 3 respectively.

Reference numeral 11 denotes a cover for covering the seismic isolation laminated rubber 5. The cover 11 has a cylindrical shape having a diameter larger than that of the seismic isolation laminated rubber 5.
The cover 11 includes a frame 13 provided outside the seismic isolation laminated rubber 5 and an opening / closing body 15 incorporated in the frame 13.
It is composed of The frame 13 is provided on the lower structure 1 side outside the seismic isolation laminated rubber 5, and is provided with a lower frame 1301 attached in a circular shape in a plan view and a circular shape in a plan view at a position separated downward from the upper structure 3. Upper frame 1303 and lower frame 1
A vertical frame 1305 is provided at three places at equal intervals in the circumferential direction between the upper frame 1301 and the upper frame 1303 and connects the upper and lower frames 1301 and 1303. The three vertical frames 1305 and the upper and lower frames 1301 and 1303 are provided. Thus, in this embodiment, three openings 17 are formed.

Each of the upper frame 1303 and the lower frame 1301 has an arcuate inner rail 1307 and an outer rail 1309 disposed outside thereof.
301, 1303 between inner rail 1307 and outer rail 13
Between 09, the opening / closing body 15 having a length of about 1/6 of the entire circumference of the cover 11 is incorporated so as to be movable along the rails 1307 and 1309. Therefore, in this embodiment, the opening and closing of almost half of the opening 17 is performed by moving the opening and closing body 15 along the inner and outer rails 1307 and 1309. In addition, each member constituting the cover 11 described above is
It is made of a material with excellent fire resistance. Reference numeral 19 denotes a sealing material. The sealing material 19 is interposed between the upper frame 1303 and the upper structure 3. The sealing material 19 is formed of a material which is deformable in the horizontal direction and has excellent fire and fire resistance. . The seal member 19 is provided to prevent the cover 11 from moving following the lower structure 1 during a vibration action such as an earthquake. In addition, the sealing material 19 may use a film body such as a fireproof cloth.

Since the present embodiment is constructed as described above, the opening 17 is closed by the opening and closing body 15 as shown in FIG. Thereby, the seismic isolation laminated rubber 5 is shielded from the outside, and the fireproof and fireproof properties are secured. In addition, when the seismic isolation laminated rubber 5 is inspected, the opening 17 is opened by moving the opening / closing body 15 as appropriate, so that the inspection can be performed over the entire circumference of the seismic isolation laminated rubber 5, and therefore, as in the conventional case, the size and weight are increased. The work of attaching and detaching the panel and the work of removing and attaching the screws can be omitted, and even if the number of the seismic isolation laminated rubbers 5 is large, the inspection work can be performed simply and quickly.

Next, a second embodiment will be described. FIG.
2A is a plan view of a cross section of a main part of the second embodiment, and FIG. 2B is a front view of a cross section of the main part, in which the same members and parts as those in the first embodiment are denoted by the same reference numerals. I will explain. Reference numeral 21 denotes a cover that covers the seismic isolation laminated rubber 5. The cover 21 has a cylindrical shape with a larger diameter than the seismic isolation laminated rubber 5. The cover 21 includes a frame 23 disposed outside the seismic isolation laminated rubber 5 and an opening / closing body 25 incorporated in the frame 23. The frame 23 has a lower frame 230 attached to the outer side of the seismic isolation laminated rubber 5 on the lower structure 1 side in a circular shape in plan view.
1, an upper frame 2303 arranged in a circular shape in a plan view at a position separated from the upper structure 3 downward, a lower frame 2301, and an upper frame 23.
The vertical frame 23 is provided at two places 180 degrees apart from each other in the circumferential direction between the upper and lower frames 230 and 303 to connect the upper and lower frames 2301 and 2303.
05 and two fixed walls 230 provided at the center of the two vertical frames 2305 and connecting the upper and lower frames 2301 and 2303.
6, two vertical frames 2305 and two fixed walls 2306
Thus, in this embodiment, four openings 27 are formed.

The fixed wall 2306 has an arc shape having a length substantially 1/6 of the entire circumference of the cover 21, and the upper frame 2303 and the lower frame 2301 outside the fixed wall 2306 are provided with arc-shaped rails 2309, respectively. Upper and lower frames 2301, 230
3 between the rails 2309, approximately one-third of the entire circumference of the cover 21.
Four open / close bodies 25 each having a length of 6 are incorporated so as to be movable along the rail 2309. Therefore, in this embodiment, the opening 27 formed by the vertical frame 2305 and the end of the fixed wall 2306 is opened and closed by moving the opening and closing body 25 along the upper and lower rails 2309. Each member constituting the above cover 21 is formed of a material having excellent fire prevention and fire resistance.

Since the present embodiment is constructed as described above, the opening 27 is closed by the opening / closing body 25 as shown in FIG. Thereby, the seismic isolation laminated rubber 5 is shielded from the outside, and the fireproof and fireproof properties are secured. Further, when the seismic isolation laminated rubber 5 is inspected, the opening 27 is opened by moving the opening / closing body 25 as appropriate, so that the inspection can be performed over the entire circumference of the seismic isolation laminated rubber 5, and the seismic isolation laminated rubber 5 becomes large and the number thereof increases. Inspection work can be performed simply and quickly even when there are many cases.

Next, a third embodiment will be described. FIG.
3A is a plan view of a cross section of a main part of the third embodiment, and FIG. 3B is a front view of a cross section of the main part. A cover 31 covers the seismic isolation laminated rubber 5. The cover 31 has a cylindrical shape with a larger diameter than the seismic isolation laminated rubber 5. The cover 31 includes a frame 33 disposed outside the seismic isolation laminated rubber 5 and an opening / closing body 35 incorporated in the frame 33. The frame 33 is
A lower frame 3301 attached in a circular shape in plan view on the outer side of the seismic isolation rubber 5 on the lower structure 1 side, and an upper frame 3303 arranged in a circular shape in plan view at a position separated downward from the upper structure 3.
And 180 in the circumferential direction between the lower frame 3301 and the upper frame 3303.
Fixed walls 3306 provided at two places spaced apart by degrees,
A vertical frame 3305 provided on both sides of the fixed wall 3306 is provided, and two openings 37 are formed between the two fixed walls 3306 in this embodiment.

The fixed wall 3306 has an arc shape having a length substantially 1/6 of the entire circumference of the cover 31. The upper frame 3303 and the lower frame 3301 between the fixed walls 3306 respectively have arcuate inner rails. 3307 and an outer rail (not shown) provided on the outside thereof, between the inner rails 3307 and the outer rails of the upper and lower frames 3301 and 3303, approximately 1% of the entire circumference of the cover 31.
Four opening / closing members 35 having a length of / 6 are incorporated so as to be movable along the rail. Therefore, in this embodiment, almost half of the opening 37 is opened and closed by moving the opening and closing body 35. Each member constituting the cover 31 is formed of a material having excellent fire and fire resistance.

Since this embodiment is constructed as described above, the opening 37 is closed by the opening / closing member 35 as shown in FIG. 3A when no inspection is performed. Thereby, the seismic isolation laminated rubber 5 is shielded from the outside, and the fireproof and fireproof properties are secured. When the seismic isolation laminated rubber 5 is inspected, the opening 37 is opened by appropriately moving the opening / closing body 35, so that the inspection can be performed over the entire circumference of the seismic isolation laminated rubber 5 and the seismic isolation laminated rubber 5 becomes large. Inspection work can be performed simply and quickly even when there are many cases.

Next, a fourth embodiment will be described. FIG.
(A) is a cross-sectional plan view of a main part of the fourth embodiment, and FIG. 4 (B) is a cross-sectional front view of the main part. Reference numeral 41 denotes a cover that covers the seismic isolation laminated rubber 5. The cover 41 has a cylindrical shape with a larger diameter than the seismic isolation laminated rubber 5. The cover 41 includes a frame 43 disposed outside the seismic isolation laminated rubber 5, and an opening / closing body 45 incorporated in the frame 43. The frame 43 is
A lower frame 4301 attached in a circular shape in plan view on the outer side of the seismic isolation laminated rubber 5 on the lower structure 1 side, and an upper frame 4303 arranged in a circular shape in plan view at a position separated downward from the upper structure 3.
And 180 in the circumferential direction between the lower frame 4301 and the upper frame 4303.
A fixed wall 4306 provided at two places spaced apart by degrees, and vertical frames 4305 provided on both sides of the fixed wall 4306,
In this embodiment, two openings 47 are formed between the two fixed walls 4306.

The fixed wall 4306 has an arc shape having a length substantially 1/6 of the entire circumference of the cover 41, and the upper frame 4303 and the lower frame 4301 between the fixed walls 4306 have the cover 4
Two arc-shaped opening / closing members 4 having a length of about 1/6 of the entire circumference of 1
5 are provided. Each opening / closing body 45 is configured such that its base is attached to the corresponding vertical frame 4305 of the fixed wall 4306 via a hinge, and the tip portion of the opening / closing body 45 swings around the hinge to open and close the opening 47. Have been. Each member constituting the cover 41 is formed of a material having excellent fire and fire resistance.

Since the present embodiment is constructed as described above, the opening 47 is closed by the opening / closing body 45 as shown in FIG. Thereby, the seismic isolation laminated rubber 5 is shielded from the outside, and the fireproof and fireproof properties are secured. Further, when the seismic isolation laminated rubber 5 is inspected, the opening 47 is opened by swinging the opening / closing body 45, so that the inspection can be performed over the entire circumference of the seismic isolation laminated rubber 5 and the seismic isolation laminated rubber 5 can be inspected.
However, even if the number is large, the inspection work can be easily and quickly performed.

Next, a fifth embodiment will be described. FIG.
(A) is a cross-sectional plan view of a main part of the fifth embodiment, and FIG. 5 (B) is a cross-sectional front view of the main part. Reference numeral 51 denotes a cover that covers the seismic isolation laminated rubber 5, and the cover 51 is formed in a regular hexagonal shape in plan view by six rectangular face plates. Each face plate is formed of fire-resistant transparent glass, and each face plate is provided with three fixed plates 54 fixed alternately and a movable plate 55 arranged openable and closable every other one.
(Opening / closing body). In this embodiment, each fixing plate 5
Four openings 57 are formed between the four.

FIG. 6 is an enlarged view for explaining the mounting structure of the fixing plate 54. The lower structure 1 and the upper structure 3 have a sintered chloroprene rubber 5301 which can be greatly deformed, respectively.
Are embedded and fixed, and the front end of the sintered chloroprene rubber 5301 exposed from the lower structure 1 and the upper structure 3 is fitted and fixed to the concave portion of the refractory ceramic material 5303. A heat insulating material 5305 is provided between the fire-resistant ceramic material 5303 and the lower structure 1 or the upper structure 3 around the sintered chloroprene rubber 5301 exposed from the lower structure 1 and the upper structure 3. It is provided via a seal 5307. The lower portion of the fixing plate 54 is provided in the recess of the refractory ceramic material 5303, and the setting block 530 is provided.
9 and the refractory seal 5311, and the upper portion of the fixing plate 54 is inserted into the recess of the refractory ceramic material 5303.
It is attached via a heat insulating material 5313 and a fireproof seal 5311.

The movable plate 55 is attached via a hinge (not shown) to an end of a fixed plate 54 corresponding to both sides thereof, and the movable plate 55 can be pulled out of either end in the left-right direction. It is configured with a double-opening system that swings around the end. The upper and lower portions of the movable plate 55 are provided with a refractory ceramic material as shown in FIG. 6, and when the movable plate 55 swings, the sintered chloroprene embedded in the lower structure 1 and the upper structure 3 respectively. It is configured to slide on rubber. At least one of the left and right sides of the movable plate 55 or the fixed plate 54 is provided with a heat insulating material or a fireproof seal so that an airtight space is formed in the cover 51 when the opening 57 is closed by the movable plate 55. Is being worn.

Since the present embodiment is configured as described above, the opening 57 is closed by the movable plate 55 when no inspection is performed. Thereby, the seismic isolation laminated rubber 5 is shielded from the outside, and the fireproof and fireproof properties are secured. Further, when the seismic isolation laminated rubber 5 is inspected, the opening 57 is opened by swinging the movable plate 55, so that the inspection can be performed over the entire circumference of the seismic isolation laminated rubber 5, and the seismic isolation laminated rubber 5 becomes large and the number thereof increases. Inspection work can be performed simply and quickly even when there are many cases. Further, in this embodiment, since the cover 51 is formed of fire-resistant transparent glass, when the inspection is performed by visually checking only the appearance of the seismic isolation laminated rubber 5, the movable plate 5 is required.
Inspection work can be performed more easily without the need for the swing operation 5.

In the fifth embodiment, both the fixed plate 54 and the movable plate 55 are made of fire-resistant transparent glass, but only one of them may be made of fire-resistant transparent glass and the other may be made of a heat-resistant plate. .

[0023]

As is apparent from the above description, according to the present invention, an opening is provided in the cover covering the seismic isolation laminated rubber, and an opening / closing body for opening / closing the opening is provided. Since a deformable sealing material is interposed between at least one of the cover and the cover, even if the diameter of the seismic isolation laminated rubber is increased and the number of the rubber is increased, the detachment work of the cover and the mounting of screws are performed. The inspection work of the seismic isolation laminated rubber can be performed efficiently without taking time for the removal work.

[Brief description of the drawings]

FIG. 1A is a cross-sectional plan view of a main part of a first embodiment, and FIG. 1B is a cross-sectional front view of the main part.

FIG. 2A is a cross-sectional plan view of a main part of a second embodiment, and FIG. 2B is a cross-sectional front view of the main part.

FIG. 3A is a cross-sectional plan view of a main part of a third embodiment, and FIG. 3B is a cross-sectional front view of the main part.

FIG. 4A is a cross-sectional plan view of a main part of a fourth embodiment, and FIG. 4B is a cross-sectional front view of the main part.

FIG. 5 (A) is a cross-sectional plan view of a main part of a fifth embodiment, and FIG. 5 (B) is a cross-sectional front view of the main part.

FIG. 6 is an enlarged view for explaining an attachment structure of a fixing plate.

[Explanation of symbols]

 Reference Signs List 1 lower structure 3 upper structure 5 seismic isolation laminated rubber 11, 21, 31, 41, 51 cover 15, 25, 35, 45 opening / closing body 17, 27, 37, 47, 57 opening 55 movable plate

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hidemi Oyama 4-6-115 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd. (72) Yoshiya Nakamura 4-6-115 Sendagaya, Shibuya-ku, Tokyo Co., Ltd. Inside Fujita

Claims (2)

(57) [Scope of request for utility model registration] 1. A structure of a cover for covering a seismic isolation laminated rubber provided between an upper structure and a lower structure, wherein the cover is provided with an opening and an opening / closing body for opening and closing the opening. A deformable sealing material is interposed between at least one of the upper structure and the lower structure and the cover, wherein the cover for seismic isolation laminated rubber is provided. 2. The seismic isolation laminated rubber cover according to claim 1, wherein said cover is made of fire-resistant transparent glass.