JP2016211167A - Film structure body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film structure body capable of forming an exposed plane such as ceiling surface with a film material while securing the appearance with a preferred proof stress secured.SOLUTION: The film structure body is constituted of including: a frame structure part 1 which has plural unit planes 5 of polygonal shape formed with assembled structural steels and the surface of which is a polygonal structure having concave and convex; and a film part 3 of a film material 2 which is attached to a unit plane 5 by fixing the same to the frame structure part 1.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a membrane structure suitable for use in preventing a suspended ceiling from falling, for example.

  Conventionally, suspended ceilings are frequently used as ceilings of buildings such as schools, hospitals, production facilities, gymnasiums, swimming pools, airport terminal buildings, office buildings, theaters, and cinecones. The suspended ceiling (suspended ceiling structure) is connected to a plurality of field edges, a plurality of field edge receivers, and a lower end to a field edge receiver, and an upper end is fixed to an upper structure (building frame) such as an upper floor. A plurality of suspension bolts (suspending members), and a ceiling panel (ceiling material) that is integrally attached to the lower surface of the field edge by screws or the like and forms a ceiling surface (ceiling part) of the lower floor It is prepared for.

  On the other hand, the suspended ceiling formed by suspending and supporting the ceiling base and the ceiling panel of the field edge and the ceiling panel with suspension bolts in this way is likely to roll due to the horizontal force acting during an earthquake. Then, it rolls at the time of the earthquake, and the end of the ceiling part collides with a building structural member (building frame) such as a wall, a pillar, or a beam, and the ceiling panel may be damaged or fallen off.

  For this reason, in recent years, it has been demanded that this type of suspended ceiling be seismically improved, and a net or cable should be stretched under the ceiling to prevent the ceiling panel from falling, or the ceiling base or ceiling base joint should be Measures have been proposed and implemented, such as reinforcement and replacement with suspended ceilings that are fully equipped with the latest seismic technology.

  However, the seismic retrofit method that stretches the net below the ceiling part reduces the design of the suspended ceiling due to the net, and the net interferes with the maintenance of incidental facilities such as lighting, sprinklers, and air conditioners. There is a problem that a large work scaffold is sometimes required and the earthquake-proof repair cost increases.

  In addition, in the seismic retrofit method that reinforces the ceiling foundation and joints, there are limitations on the range that can be reinforced due to ancillary equipment installed in the space behind the ceiling. General materials that are not JIS materials are used for the ceiling underlays, etc., and there are cases where the strength is low, performance after reinforcement is unstable, and sufficient repair accuracy cannot be ensured, or there are spot welds and so on. There is a case.

  The seismic retrofit method by exchanging the entire surface makes it possible to make it seismic with the latest knowledge, but there are disadvantages such as the use prohibition period of the room under the ceiling becomes longer and a large amount of waste is generated.

  On the other hand, the applicant of the present application arranges a wire, a grid or the like whose end is fixed to a building component horizontally below the ceiling material, and connects the wire or grid and the ceiling base. An application for vibration reduction structure (suspended ceiling structure) has been filed (see Patent Document 1).

  In the suspended ceiling configured as described above, the ceiling base and the building structural member behave integrally when the vibration is caused by the earthquake by connecting the ceiling base and the building structural member via a wire or a grid. As a result, it is possible to suppress the shaking of the ceiling when vibration is generated.

JP 2008-121371 A

On the other hand, for example, when preventing the fall of the arched ceiling part, it is difficult to apply a wire or a grid.
Moreover, in the wire and the grid, it is not possible to prevent the fallen pieces of the ceiling part that has been locally damaged.

  On the other hand, it is also conceivable to install a film material (sheet material) so as to cover the ceiling surface. However, simply installing the film-like material does not improve the seismic performance, deteriorates the appearance, and further, when the stripped piece is received, the film-like material is greatly bent by its weight. Many inconveniences occur.

  For this reason, there is a strong demand for a method that can reliably improve the seismic performance and prevent peeling even in cases where it is difficult to cope with wires and grids while maintaining the appearance.

  In view of the above circumstances, an object of the present invention is to provide a membrane structure capable of forming an exposed surface such as a ceiling surface with a film-like material while ensuring a good appearance and capable of suitably ensuring a proof stress. .

  In order to achieve the above object, the present invention provides the following means.

  The membrane structure of the present invention includes a frame structure part that has a multi-face structure in which a steel frame is assembled so as to form a plurality of polygonal unit surfaces, and the surface exhibits an uneven shape, and the unit is fixed to the frame structure part And a film portion formed by adhering a film-like material to the surface.

  In the film structure of the present invention, it is possible to form an exposed surface such as a ceiling surface with a film-like material while ensuring the appearance, and it is possible to suitably ensure the yield strength.

It is a front view which shows the state which installed the membrane structure which concerns on one Embodiment of this invention under the arch-shaped suspension ceiling. It is a top view which shows the film | membrane structure which concerns on one Embodiment of this invention. It is a perspective view which shows the film | membrane structure which concerns on one Embodiment of this invention. It is a perspective view which shows the film | membrane structure which concerns on one Embodiment of this invention. It is a top view which shows the film | membrane structure which concerns on one Embodiment of this invention.

  Hereinafter, a film structure according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

  As shown in FIGS. 1 to 5, the membrane structure A of the present embodiment includes a frame structure portion 1 and a membrane portion 3 formed by fixing (stretching) a film-like material 2 to the frame structure portion 1. It is prepared for. In the present embodiment, the membrane structure A is formed in an arch shape having a substantially cylindrical shape (divided shape), and the suspension structure 4 is formed below the arched suspension ceiling 4. It is installed along.

  In addition, the frame structure portion 1 of the present embodiment has a so-called PCCP (PSEUDO CYLYNDRIKAL CONCAVE POLYHEDRAL SHELLS) structure in which a steel frame is assembled so as to form a plurality of polygonal unit surfaces 5. That is, the frame structure unit 1 is assembled with a steel frame to form a polygonal unit surface 5 such as a triangle or a trapezoid, and a plurality of unit surfaces 5 while adjacent unit surfaces 5 share sides (boundary ridge lines). Are connected to each other.

  And it adheres to the steel frame material of the frame structure part 1 comprised in this way, and the film-like material 2 is stretched by all the unit surfaces 5. FIG. The film portion 3 may be formed by stretching the film material 2 (one film material 2) for each unit surface, or one film material 2 may be stretched on the plurality of unit surfaces 5. It may be provided to form the film part 3.

  As a result, the film structure A of the present embodiment is formed as a polyhedral structure in which a plurality of triangular unit surfaces 5 or trapezoidal unit surfaces 5 are connected in a diamond shape or hexagonal shape by the film portions 3 forming the inner and outer surfaces. Has been.

  Further, the membrane structure A (frame structure portion 1) of the present embodiment is connected so as to bend two-dimensionally alternately in opposite directions on one side (boundary ridge line) shared by adjacent unit surfaces 5. The surface is configured as a polyhedral structure having an uneven shape.

  Thereby, even if this membrane structure A (frame structure part 1) is a case where a load (load) such as an impact acts to compress, bend, twist, or a stress that combines these acts on the steel frame, It has a structure with extremely excellent proof stress performance that does not buckle or break in a weak direction. In other words, since the film structure A (frame structure 1) of the present embodiment has a multi-surface uneven structure and thus has excellent yield strength performance as a whole, the frame structure portion 1 ( (Steel frame) can be reduced in weight.

  If such a membrane structure A is provided, for example, below the arch-shaped suspended ceiling 4 (ceiling part), the membrane structure A receives a fallen object when the ceiling part falls due to an earthquake. It is possible to ensure safety.

  In addition, since the membrane structure A has excellent strength performance, connecting the frame structure portion 1 of the membrane structure A to the ceiling portion of the suspended ceiling 4 significantly improves the earthquake resistance of the suspended ceiling 4. It becomes possible to make it.

  Furthermore, the film structure A is configured as a polyhedral structure having a surface with irregularities. For this reason, the appearance is also very good. Moreover, since it can form in an arch shape, it can apply also to the case where correspondence with a wire or a grid is difficult.

  Therefore, in the film structure A of the present embodiment, it is possible to form an exposed surface such as a ceiling surface with the film-like material 2 while ensuring the appearance, and it is possible to suitably ensure the yield strength.

  Although one embodiment of the membrane structure according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the present invention.

  For example, in the present embodiment, the film structure of the present invention has been described as an application of the film structure of the present invention in order to improve the seismic performance of the suspended ceiling 4 and prevent peeling. Of course, it may be used alone as a structure excellent in appearance and appearance.

  Further, in the present embodiment, the membrane structure A is formed in an arch shape, but the shape of the membrane structure according to the present invention is not necessarily limited to the arch shape.

  For example, the side wall and the top plate are composed of the frame structure unit 1 and the film unit 3 to form the membrane structure A in a gate shape, or a substantially flat top plate supported by a column formed by other members. The part may be formed of the film structure A. Even in this case, by forming the film structure A with a multi-faceted structure having an uneven shape, it is possible to make a structure having excellent proof stress performance and excellent appearance as in the present embodiment.

 When the membrane structure A is formed in a gate shape as described above, or when the membrane structure A of the top plate is formed to be supported by the support, not only the arched suspended ceiling 4 but also the normal Even with respect to a suspended ceiling forming a flat ceiling surface, it is possible to improve seismic performance and prevent peeling by installing the membrane structure A below the suspended ceiling.

  In the present embodiment, the film-like material 2 is stretched on all the unit surfaces 5 (each unit surface) of the frame structure portion 1, but the film-like material 2 is not necessarily provided on all the unit surfaces 5. The membrane structure A may not be configured by stretching. For example, a plate-like material such as a transparent plate (such as glass or acrylic), lighting or air conditioning equipment (unit), or the like may be provided on some of the unit surfaces 5.

DESCRIPTION OF SYMBOLS 1 Frame structure part 2 Film-like material 3 Film part 4 Suspended ceiling 5 Unit surface A Membrane structure

Claims (1)

Assembling the steel frame so as to form a plurality of polygonal unit surfaces, and a frame structure part having a multi-face structure with an uneven surface,
A membrane structure comprising: a membrane portion fixed to the frame structure portion and a membrane material fixed to the unit surface.

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