JP3355929B2 - Frame structure of building with clean room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building frame structure suitable for use in a building having a clean room.

[0002]

2. Description of the Related Art In general, a clean room is used as a clean duct chamber below the floor and requires a relatively large volume, so that the floor has a high floor structure.

FIG. 3 shows such a conventional high-floor building. A building 1 is composed of pillars 2 (and walls) and a roof 3, and a clean room 4 is formed in the building 1. Is a space surrounded by a stilt floor 5 and a ceiling 6 suspended from the frame of the roof 3.
A space 7 formed between the roof and the roof 3 is used as a supply-side chamber for air-conditioned air, and a lower space 8 of the floor 5 is used as a discharge-side chamber. A system for circulating and supplying always-purified air to the clean room 4 through the device is constructed.

[0004] The frame of the floor 5 is assembled by installing a floor panel on an upper portion of a frame in which a small beam, a joist, and the like are combined on a plurality of raised floor columns 9 erected in a lower space 8.

[0005]

However, in this type of clean room having a conventional structure, the end of the floor 5 has a structure integrally joined to the pillar 2 or the wall of the building 1. When external energy such as natural vibration such as an earthquake or wind, or other artificial steady or unsteady vibration is input to the building 1, the clean room 4 is also deformed according to the deformation of the building 1 indicated by a dotted line in the figure. in addition, the effects such as the installed precision equipment in a clean room 4 had <br/>及pot to disadvantages due to vibration.

[0006] On the contrary, walking vibrations acting on the floor surface and vibrations from equipment are transmitted to the building 1 to increase internal noise.

As a means for preventing such a problem, a vibration isolation structure has been adopted. However, the entire building is completely isolated in accordance with the design of a clean room in which the vibration of the equipment is mainly used. In the case of a vibrating structure, excessive design is required and the construction cost is enormous.

The present invention solves the above problems, and completely separates the vibration system between the building vibration system and the clean room floor, thereby preventing the deformation of the clean room accompanying the deformation of the building. It is another object of the present invention to provide a frame structure of a building having a clean room in which vibrations in the clean room can be prevented from propagating to the building.

[0009]

In order to achieve the above object, according to a first aspect of the present invention, there is provided a building having a raised floor type beam frame supporting a floor of a clean room in a building, wherein the raised floor is provided. The elevated beam frame is provided separately from the frame of the building, and the end of the elevated floor beam frame is supported by side columns for the elevated floor separately arranged from the pillars of the building.
By separating the foundation from the foundation of the side column for the high floor , vibration and deformation of the building are not transmitted to the clean room, and vibration from the clean room is transmitted to each part of the building. Can be prevented , and the vibration transmission system
Ru can be achieved away.

[0010]

[0011]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows a system configuration of a clean room factory to which the present invention is applied. In the figure,
This clean room factory is provided with a building 10 and a utility stanchion 1 which is disposed adjacent to a side of the building 10 and is equipped with air conditioning equipment for supplying clean air to the building.
2 and a utility stanchion 12
Is constructed separately from the building 10, so that steady vibrations generated from various devices disposed inside the building 10
To prevent transmission.

The building 10 is composed of a corridor (meaning a large corridor) 14 built in the center and a building body 16 constituting a clean room integrally built on the left and right sides thereof (only one side is shown in the figure). ).

The corridor 14 functions as a return chamber, a flow line for carrying in equipment, a flow line for maintenance, a piping location of a main pipe, and a flow line for evacuation from the building body 16, and gives the building body 16 a sense of openness. , Which functions as an amenity space, is formed vertically through the center of the building body 16 in the height direction, and is formed one level higher than other places. We take in external light into the interior of the room.

The building body 16 is composed of columns 20 (and walls) and a large-span roof frame 20 of a steel truss assembly. A high-floor floor 22 is provided inside the building frame 16, and is integrally suspended below the roof frame 20. The lowered ceiling 24 and the partition 26 constitute a clean room 32 completely defined by the under-floor space 28 and the under-the-ceiling space 30.

The opposing surface of the underfloor space 28 and the corridor 14 is partitioned by a partition, and the opposing surface of the clean room 32 and the corridor 14 is air-tightly partitioned by a transparent partition or the like. It is possible to see through the corridor 14 and to be free from the feeling of blockage due to the closed space, and to give a criterion such as directionality.

The utility stanchion 12
As shown by arrows in the drawing, the conditioned air blown into the ceiling space 30 through the duct 36 is introduced into the clean room 32 through a fan unit 38 including a filter, and the inside is maintained as an advanced clean space. .

The introduced clean air enters the underfloor space 28 through a grating provided on the floor 22 or the like.
The underfloor space 28 and the underfloor space 30 constitute a return chamber, and a part of the air that has entered the underfloor space 28 is returned to the underfloor space 30 again through the dry coil D, and also through the dry coil D, the corridor 14.
, And is again circulated from the corridor 14 to the space 30 above the ceiling. That is, the corridor 14 also forms a space as a quasi-clean room and forms a part of the return chamber.

The floor beam structure of the floor 22 in the above configuration is as follows.
It is constructed separately from the corridor 14 and the frame of the building body 16. FIG. 2 shows the detailed structure.
On a mat slab foundation 42 independent of the foundation 40 of the pillar 20 of the building body 16, a plurality of raised floor pillars 43 arranged at a plurality of predetermined pitches and a raised floor side pillar 44 arranged at the end of the floor beam frame. A floor panel 48 that constitutes the floor is laid on the upper surface of a floor frame 46 such as a beam or a joist, and an end of the floor 22 and the pillar 20 (and the wall) Built in a disconnected state.

Therefore, external energy E1 such as natural vibration such as earthquake or wind, artificial steady or unsteady vibration from another utility stanchion 12 or the like is input to the building body 16 and is input to the building 1. Is not transmitted to the floor 22, and conversely, even if a minute vibration such as a walking vibration E 2 to the floor 22 or a mechanical vibration E 3 from the device 48 installed on the floor 22 occurs, this vibration is building body 16 (and Corridor 14) without being transmitted to, it becomes possible to prevent the occurrence of noise due to these vibrations.

Further, mat slab foundation 42, pillar 43,
By making the seismic design of the side columns 44 and the floor frame 46 more sophisticated than other parts, even if the vertical and horizontal earthquake motion E4 acts directly from the ground side, the vibration is controlled by its rigidity, and the vibration of the clean room 32 is amplified. Can be prevented and the floor 22
The above-mentioned micro-vibration can be suppressed by various methods.

[0022]

As apparent from the above description of the embodiment, in the frame structure of a building having a clean room according to the present invention, the vibration system of the building and the vibration system of the floor of the clean room are completely connected. By separating, it is possible to prevent the clean room from being deformed due to the deformation of the building and to prevent the vibration in the clean room from propagating to the building.

Further, since it is sufficient to adopt a high-grade seismic design requiring only the floor, it is possible to construct the system at a low cost without excessive design compared to a case where the whole is made to have a high-grade seismic design.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a system configuration of a clean room factory to which the present invention is applied.

FIG. 2 is a sectional view showing a frame structure of the building.

FIG. 3 is a cross-sectional view showing a problem of a building having a conventional raised floor type floor frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Building 20 pillar 22 floor 32 clean room 40 foundation 42 mat slab foundation 43 pillar for high floor 44 side pillar for high floor 46 floor beam frame 48 floor panel

──────────────────────────────────────────────────続 き Continued on the front page (72) Shohei Nakagawara 4-33, Kitahamahigashi, Chuo-ku, Osaka-shi, Osaka Prefecture Inside the Obayashi-gumi head office (72) Yoshihiro Fujita 4-33, Kitahamahigashi, Chuo-ku, Osaka-shi, Osaka No. Obayashi-gumi Main Store (72) Inventor Kikuo Ishida 4-33 Kitahama East, Chuo-ku, Osaka-shi, Osaka Prefecture (72) Inventor Takayuki Yokomori 4-33 Kitahama-higashi, Chuo-ku, Osaka, Osaka No. Obayashi Corporation Main Store (56) References JP-A-7-310425 (JP, A) JP-A-63-14025 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 7/04-7/06

Claims (1)

(57) [Claims] In a building provided with a raised floor type beam frame supporting a floor of a clean room in a building interior, the raised floor type beam frame is provided separately from a building frame, and an end of the raised floor type beam frame is attached to the building. In addition to being supported by stilt side pillars separately arranged from the pillars, the base of the building pillars and the stilt side pillars are separated from each other.
A frame structure of a building having a clean room, characterized by being constructed as follows .