JP6439967B2 - Suspended ceiling structure and seismic resistance method for suspended ceiling structure - Google Patents

Description

  The present invention relates to a suspended ceiling structure and a method for making a suspended ceiling structure earthquake resistant.

  Conventionally, suspended ceilings are frequently used as ceilings of buildings such as schools, hospitals, production facilities, gymnasiums, pools, airport terminal buildings, office buildings, theaters, cinecones, etc. (see, for example, Patent Document 1 and Patent Document 2). . In the suspended ceiling (suspended ceiling structure) A, for example, as shown in FIG. 7, a plurality of field edges 1 arranged in parallel at a predetermined interval in one horizontal direction T1, and orthogonal to the field edges 1. , A plurality of field receivers 2 that are provided in parallel in the other direction T2 in the horizontal direction and are integrally connected to a plurality of field edges 1, a lower end is connected to the field receiver 2, and an upper end is A plurality of suspension bolts (suspending members) 4 fixedly disposed on an upper structure (building frame) 3 such as a flooring material on the upper floor, and a grid-like ceiling base 7 including a field edge 1 and a field edge receiver 2 ( There are some which are provided with a ceiling panel (ceiling material) 6 such as a gypsum board which is integrally attached by screwing to the lower surface of the field edge 1 and forms a ceiling surface (ceiling part 5).

  Further, as shown in FIG. 8, for example, a suspended ceiling (suspended ceiling structure) A in which a heavy equipment such as a fan filter unit needs to be installed on the ceiling 5 as in a clean room has a horizontal direction T1. A plurality of T bars (supporting members having a reverse T-shaped cross section) 8 which are arranged in parallel with each other at a predetermined interval and extend in the other direction T2 orthogonal to one direction T1, and the upper end is fixed to the upper structure, and the lower end side is set to T A plurality of suspension bolts (suspension members) 4 connected to the bar 8 and a ceiling base 7 made of a T bar 8 or the like are screwed together to form a ceiling surface (ceiling portion 5). There is also a configuration including a ceiling panel (ceiling material) 6.

  Here, the suspended ceiling A formed by supporting the ceiling edge 7 and the ceiling panel 6 such as the field edge 1 and the field edge receiver 2 and the T-bar 8 with the suspension bolt 4 in this way is structurally resistant to an earthquake. It is easy to roll due to the acting horizontal force. Then, when the earthquake sways, the end portion 5a of the ceiling portion 5 may collide with a building component (building frame) 9 such as a wall, a column, or a beam, and the ceiling panel 6 may be damaged or fallen off. there were.

  For this reason, a reinforcing brace 10 is conventionally provided by connecting the upper end side to the upper structure 3 and the like, and connecting the lower end side to the ceiling base 7 such as the suspension bolt 4, the field edge 1, the field edge receiver 2, and the T-bar 8. In addition, the rolling of the ceiling portion 5 composed of the ceiling base 7 and the ceiling panel 6 during an earthquake is suppressed (see FIG. 8).

  On the other hand, when performing seismic reinforcement and seismic retrofit by the reinforcing brace 10, it is necessary for an operator to enter the ceiling space H and perform installation work. For this reason, there is a case in which the range that can be reinforced is limited by wiring, piping, an air conditioner, or the like arranged in the ceiling space H, and cannot be adequately handled. In addition, low-strength general materials that are not JIS materials are used for the ceiling base 7, etc., and the performance after reinforcement is unstable and sufficient repair accuracy cannot be ensured, or because there are spot welds etc. There is also.

  On the other hand, as shown in FIG. 9, for example, a tensile material (stiffening) having a substantially inverted U-shaped cross section such as a grooved steel is provided below the ceiling portion 5 and laterally along the ceiling portion 5. Material, support material) 11, both ends of the tension material 11 are connected to the building frames 3 and 9, and the middle part is tapped with the ceiling material 6 and / or the ceiling base 7 from below the ceiling part 5. A suspended ceiling structure B that is connected and fixed by, for example, has been proposed (see, for example, Patent Document 3).

  Thus, in the suspended ceiling structure B (grid support method) in which the substantially rod-shaped tensile material 11 such as channel steel is disposed below the ceiling portion 5 and along the ceiling portion 5, the tensile material is provided during an earthquake. 11, the ceiling part 5 can be made to behave integrally with the building housings 3 and 9, and the shaking of the ceiling part 5 can be suppressed.

  Further, the intermediate part of the tension member 11 is fixed to the ceiling member 6 and / or the ceiling base 7 from below the ceiling part 5 by using a connection fixing means such as a screw, so that when the tension member 11 is installed, the ceiling The work in the space H can be made almost unnecessary, and the workability can be greatly improved.

  Thus, even when the tensile material 11 is attached to the existing suspended ceiling structure A to improve the earthquake resistance, a dangerous work in the ceiling space H is unnecessary, and the inside of the ceiling space H is not required. The inconvenience that there is a range in which construction cannot be performed due to the clearance with the incidental equipment provided in the building and the building housing 3 can be solved, and the required construction period can be shortened and the cost can be reduced.

  In addition, maintenance of ceiling-related facilities such as air conditioners and lighting can be easily performed after the earthquake-resistant repair. Furthermore, whether the JIS material or the general material is used for the field edge 1, the field edge receiver 2, the T-bar 8, etc. of the ceiling base 7, and whether it is a newly installed or existing suspended ceiling structure, the ceiling material It is possible to cope with any material 6, and it is possible to reliably improve the seismic performance.

JP 2008-121371 A JP 2005-350950 A JP2013-177801A

  Here, when installing tensile materials such as channel steel to make the suspended ceiling structure seismic resistant, it cannot be said that a method for connecting the ends of the tensile materials to the building frame has been established at present. Therefore, it is strongly desired to develop an end connection structure of a tensile material having excellent reliability.

  In view of the above circumstances, the present invention provides a suspended ceiling structure and a suspended ceiling structure capable of suitably connecting an end portion of a substantially rod-shaped tensile material that is fixedly installed on a ceiling material or a ceiling base to a building frame or the like. The purpose is to provide an earthquake resistance method.

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

The suspended ceiling structure of the present invention is a suspended ceiling structure in which a ceiling material that forms a ceiling surface is attached to a ceiling base that is suspended and supported by an upper structure of a building frame via a suspension member. And a tensile material disposed along the ceiling surface, and a tensile material connection structure for connecting the tensile material and the building frame, wherein the tensile material connection structure is connected to the building frame by a frame connection means. And a tension material holding member disposed along a ceiling portion made of the ceiling base and the ceiling material, and an end connection member for connecting an end portion of the tension material to the tension material holding member. The end portion connecting member is fixed to the tensile material holding member, and the connecting portion is bonded to the end portion of the tensile material. are formed with the door, it said skeleton against Means for connecting the upper end to the upper structure and connecting the suspended material disposed in the ceiling space, a lower end side below the ceiling material, an upper end side in the ceiling space, and an upper end side. The lower end of the connecting suspension member is bolted, and the holding member side connecting member for bolting the tensile material holding member is provided on the lower end side .

  The method for seismic retrofit of a suspended ceiling structure according to the present invention is a method of making a suspended ceiling structure seismic by attaching a ceiling material that forms a ceiling surface to a ceiling base that is suspended and supported by an upper structure of a building frame via a suspension member. A tensioning material installation step of arranging a tensioning material below the ceiling material and along the ceiling surface, and connecting a top end to the upper structure and arranging a connecting suspension material in the space behind the ceiling. The connecting suspension material installation step, the lower end side is arranged below the ceiling material, the upper end side is arranged in the ceiling space, and the lower end of the connection suspension material is joined to the upper end side to arrange the holding member side connection material. A holding member side connecting material installation step, and a tensile material holding member disposed along the outer peripheral end of the ceiling portion made of the ceiling base and the ceiling material, and the tensile material holding member as the holding member side connecting material The tension material holding member installation step for bolt joining, and the tension material Characterized in that it comprises a tension member connecting step of joining the ends of the tension member and the end connection member fixed to the support member.

  In these inventions, as a tensile material connection structure for connecting a tensile material (stiffener, support material) and a building frame, a frame connecting means, a tensile material holding member, and an end connecting member are provided, and the end connecting member is provided. The fixed tension material holding member is arranged at a predetermined position and supported by the housing connecting means, and the tensile material is joined to the connection portion of the end connection member, so that the workability and reliability are secured and the tensile material is suitably It becomes possible to connect the end to the building frame.

  In the present invention, a connecting suspension member and a holding member side connection member are provided as the housing connecting means, the upper end is connected to the upper structure, the connection suspension member is installed in the ceiling space, and the lower end side of the connection suspension member By attaching the holding member side connecting material to the bolt and attaching the tensile material holding member to the lower end side of the holding member side connecting material, the workability and reliability are secured, and the tensile material holding member is suitably attached. It can be installed along the outer peripheral edge of the ceiling.

  Furthermore, in the suspended ceiling structure of the present invention, the upper connection is connected to the upper structure, the lower connection is connected to each other, and the suspended connection suspension and the oblique connection suspension disposed in the ceiling back space are connected to the suspension structure. It is more desirable to provide as a suspension material.

  In the present invention, as the connection suspension material, a suspended connection suspension material that is suspended by connecting the upper end to the upper structure, and an oblique connection suspension material that is obliquely disposed by connecting the upper end to the upper structure, these The lower ends of the suspended connecting suspension member and the oblique connecting suspension member are connected to each other, and the tensile material holding member is connected to the connecting portion between the lower ends via the holding member side connecting member. As a result, the tensile force acting on the tensile material during an earthquake can be dispersed and supported by the suspended and suspended connecting suspensions, and the rolling of the suspended ceiling structure can be effectively suppressed by the tensile members. It becomes possible.

  According to the suspended ceiling structure of the present invention, it is possible to suitably connect the end portion of a substantially rod-shaped tension member that is fixedly installed on a ceiling material or a ceiling base to a building frame or the like.

It is a front view which shows the tension material connection structure of the suspended ceiling structure which concerns on one Embodiment of this invention. It is a perspective view which shows the condition which installs the tension material holding member of the tension material connection structure which concerns on one Embodiment of this invention. It is a perspective view which shows the condition which installs the tension material holding member of the tension material connection structure which concerns on one Embodiment of this invention. It is the top view seen from the lower part side which shows the edge part connection member of the tension material connection structure which concerns on one Embodiment of this invention. It is a side view which shows the edge part connection member of the tension material connection structure which concerns on one Embodiment of this invention. It is a figure which shows the jig | tool for bolt attachment used when bolting the tension | tensile_strength holding | maintenance member and holding | maintenance side connection material of the tension | tensile_strength material connection structure which concern on one Embodiment of this invention. It is a perspective view which shows the conventional suspended ceiling structure. It is a perspective view which shows the conventional suspended ceiling structure. It is a perspective view which shows the suspended ceiling structure provided with the tension material.

  Hereinafter, with reference to FIG. 1 to FIG. 6 and FIG. 9, a suspended ceiling structure and a method for making the suspended ceiling structure earthquake resistant according to an embodiment of the present invention will be described. Here, the present embodiment relates to a suspended ceiling structure used as a ceiling of a building such as a school, a hospital, a production facility, a gymnasium, a pool, an airport terminal building, an office building, a theater, or a cinecon.

  As shown in FIG. 9, the suspended ceiling (suspended ceiling structure) C of the present embodiment includes a field edge 1, a field edge receiver 2, a suspension member (suspension bolt) 4, and a ceiling material 6.

  The field edge 1 is, for example, a grooved steel having a U-shaped cross section, and extends horizontally, and is arranged in parallel at a predetermined interval in a horizontal direction T1 in one horizontal direction. .

  The field edge receiver 2 is, for example, a grooved steel having a U-shaped cross section, is horizontally extended, and is arranged in parallel with a predetermined interval in the horizontal direction T2 in the other horizontal direction. Yes. At this time, the field edge receiver 2 is disposed so as to intersect the field edge 1 and is disposed in a state of being placed on the plurality of field edges 1. Each field edge receiver 2 is connected to the field edge 1 by using a field edge connection bracket (clip) at a portion intersecting with the field edge 1.

  The suspension member 4 is a suspension bolt that is formed in a cylindrical bar shape and has an external thread threaded on its outer peripheral surface, and is fixed to an upper structure 3 such as a steel beam (frame beam) of a building frame, or a steel joist or the like A plurality of lower end sides are connected to the field receiver 2 by using a hanging member connecting bracket (hanger). Further, the plurality of suspension members 4 are dispersedly arranged at a predetermined interval.

The ceiling material (ceiling panel) 6 is formed by laminating two boards and integrally stacking them. For example, the ceiling material (ceiling panel) 6 is formed with a weight of about 20 kg per 1 m ² together with the weight of a ceiling accessory. The ceiling material 6 is installed on the lower surfaces of the plurality of field edges 1 by screws or the like. The ceiling material 6 may be composed of one board and three or more boards.

  In the suspended ceiling C, the field edge 1, the field edge receiver 2, and the ceiling material 6 are suspended and supported by the upper structure 3 of the building via the suspension member 4. A ceiling base 7 is formed by the field edge 1 and the field edge receiver 2, and the ceiling part 5 is formed by the ceiling base 7 and the ceiling material 6 attached to the ceiling base 7, and the ceiling surface of the lower floor is formed by the ceiling part 5. ing.

On the other hand, in the suspended ceiling C of the present embodiment, as shown in FIGS. 1 and 9, a substantially bar shape disposed horizontally below the ceiling portion 5 and along the lower surface (ceiling surface) of the ceiling portion 5. Tension material (stiffening material, support material) 11 and a tension material connection structure 15 for connecting the tension material 11 and the upper structure 3 of the building frame.
It should be noted that the building housing is not particularly limited and may be an RC beam.

  The tensile material 11 is, for example, a grooved steel formed of an aluminum extruded shape steel, a steel member, and the like, and includes a pair of side wall portions 11a and a continuous portion 11b that connects the upper ends of the pair of side wall portions. (Refer to FIG. 4 and FIG. 5).

  Further, the tension member 11 is provided by fixing its intermediate part from below the ceiling part 5 to the ceiling material 6 (ceiling part 5) and the ceiling base 7 of the field edge 1 by connection fixing means such as tapping screws. And in this embodiment, such a tension material 11 is arrange | positioned under the ceiling part 5 at the grid | lattice form (grid shape) of 900-2400 mm pitch, for example.

  As shown in FIG. 1 to FIG. 3, the tension member connection structure 15 is supported by being connected to the building frame by the frame connection means 16, and extends along the outer peripheral end 5 a of the ceiling portion 5 including the ceiling base 7 and the ceiling material 6. The tension material holding member 17 is provided, and the end connection member 18 that connects the end of the tension material 11 to the tension material holding member 17 is provided. For the tensile material holding member 17, for example, a shape steel such as an H-shaped steel, an I-shaped steel, or a grooved steel is used.

  In addition, as shown in FIG. 1, the frame connecting means 16 is connected to the upper structure 3 with the upper end connected to the suspension material 19 disposed in the ceiling space H, and the lower end side below the ceiling material 6. An upper end side is arranged in the ceiling space H, the lower end of the connecting suspension member 19 is bolted to the upper end side, and the holding member side connecting member 20 is bolted to the tensile material holding member 17 on the lower end side. Yes.

  In addition, as shown in FIGS. 1 to 3, a plurality of the connecting suspension members 19 of the present embodiment are provided with a predetermined interval in the direction along the outer peripheral end portion 5 a of the ceiling portion 5. Furthermore, the upper structure 3 is provided with a plurality of a pair of connection suspension materials 19 including a vertical connection suspension material 19a and an oblique connection suspension material 19b which are connected in the ceiling back space H with the upper ends connected to each other and the lower ends connected to each other. Configured.

  The holding member side connecting member 20 of the present embodiment includes an upper connection portion 20a extending in the vertical direction T3 and a lower connection portion 20b extending in the horizontal direction, and is formed in an inverted T shape. The lower connection portion 20b is formed in a flat plate shape and is disposed with the plate surface facing the vertical direction T3, and penetrates from the upper surface to the lower surface on both sides in the lateral direction across the upper connection portion 20a. A plurality of bolt insertion holes 21 are formed.

  The holding member side connecting member 20 is formed by inserting the upper connecting portion 20a from below into the insertion hole 22 formed through the ceiling member 6 so that the upper end side is in the ceiling back space H and the lower connecting portion 20b is on the lower end side. They are arranged below the ceiling material 6 with a predetermined interval.

  Further, in the present embodiment, the bolt insertion hole 21 of the lower connection portion 20b and the bolt insertion hole 23 formed through the web so that the web overlaps the lower connection portion 20b of the holding member side coupling member 20 are provided. A tensile material holding member 17 such as an H-shaped steel, an I-shaped steel, or a grooved steel is disposed so as to communicate with each other. Then, by inserting a bolt (high-strength bolt) 24 into each other's bolt insertion holes 21 and 23 and fastening a nut 25, the tensile material holding member 17 is connected to the building via the connecting suspension material 19 and the holding member side connecting material 20. It is connected and supported by the upper structure 3 of the housing, and is disposed along the outer periphery of the ceiling portion 5.

  Further, as shown in FIG. 2 to FIG. 5, the tensile material holding member 17 is fixed to a predetermined position by welding or the like, and protrudes inside the ceiling portion 5, and the end portion of the tensile material 11 is attached to the tensile material holding member 17. An end connection member 18 for connecting to the tensile material holding member 17 is integrally attached.

  Further, the end connecting member 18 of the present embodiment is formed in a flat plate shape, one end is fixed to the flange of the tensile material holding member 17, and the fixing portion 26 is disposed with the plate surface facing the vertical direction T3, One end is fixed to the fixing portion 26 and extends in the lateral direction, and is formed with a connection portion 27 that bolts the end portion of the tensile material 11. Moreover, in this embodiment, the connection part 27 is provided with the connection part 27b which connects the upper end of a pair of side wall part 27a and a pair of side wall part 27a, is formed in cross-sectional U-shape (reverse U-shape), and is connected. The installation portion 27b is fixed to the lower surface of the fixing portion 26 by welding or the like. Furthermore, the connection part 27 has a plurality of bolt insertion holes formed through the side wall part 27a on the front end side in the extending direction.

  The end portion of the tension member 11 is arranged so that the end portion of the tension member 11 is overlapped with the front end side of the connecting portion 27, the bolt insertion holes are communicated with each other, the bolt 28 is inserted, and the nut 29 is fastened. Is bolted to the end connection member 18.

  When installing the tension member 11 and the tension member connection structure 15 configured as described above to make the suspended ceiling C earthquake resistant (in the earthquake resistance method of the suspended ceiling structure of the present embodiment), below the ceiling material 6. And the tension | tensile_strength material 11 is arrange | positioned along a ceiling surface (tensile material installation process).

  At the same time, the upper end is connected to the upper structure 3, and the connecting suspension material 19 is disposed in the ceiling space H (connected suspension material installation step). The upper end side is arranged on the upper end side, and the lower end of the connecting suspension member 19 is bolted to the upper end side to arrange the holding member side connecting member 20 (holding member side connecting member installation step).

  Further, a tensile material holding member 17 is disposed along the outer peripheral end portion 5 a of the ceiling portion 5 including the ceiling base 7 and the ceiling material 6, and the tensile material holding member 17 is bolted to the holding member side connecting material 20. (Tensile material holding member installation step). And the edge part connection member 18 adhering to the tension material holding member 17 and the edge part of the tension material 11 are bolt-joined (tensile material connection process).

  Here, when the web of the tensile material holding member 17 is bolted to the lower connection portion 20b of the holding member side connecting member 20, the gap between the lower connection portion 20b and the web and the ceiling material 6 is very large. Get smaller. For this reason, an operator's hand does not enter and it is also considered that this bolt joining operation becomes difficult.

  On the other hand, in this embodiment, as shown in FIGS. 3 and 6, a bolt mounting jig 30 is used. This bolt mounting jig 30 is configured by attaching a tube material 32 having elasticity such as a silicon pipe to the tip of a linear body 31 such as a flexible cable body such as a wire or a chain or a chain body. Then, the linear body 31 is passed through the lower connecting portion 20b of the holding member side connecting member 20 and the gap between the web of the tension member holding member 17 and the ceiling member 6, and is inserted into the bolt insertion holes 21 and 23. Further, the shaft portion of the bolt 24 is inserted and held at the tip of the tube material 32. In this state, the linear body 31 is pulled so that the shaft portions of the tube material 32 and the bolt 24 are inserted into the bolt insertion holes 21 and 23, and the bolt is removed from the tube material 32.

  Thereby, even if the gap between the lower connecting portion 20b of the holding member side connecting member 20 and the web of the tensile member holding member 17 and the ceiling member 6 is very small and the operator's hand does not enter, The bolt 24 can be easily inserted into the bolt insertion holes 21 and 23 and the nut 25 can be fastened.

  Therefore, in the suspended ceiling structure C of the present embodiment, the frame connecting means 16, the tensile material holding member 17, and the end connection member 18 are provided as the tensile material connection structure 15 that connects the tensile material 11 and the building frame. The tensile material holding member 17 to which the joint connecting member 18 is fixed is disposed at a predetermined position and supported by the housing connecting means 16, and the tensile material 11 is bolted to the connecting portion 27 of the end connecting member 18. It becomes possible to ensure the reliability and suitably connect the end portion of the tension member 11 to the building frame.

  Further, a connecting suspension member 19 and a holding member side connecting member 20 are provided as the housing connecting means 16, the upper end is connected to the upper structure 3, and the connecting suspension member 19 is installed in the ceiling space H. By attaching the holding member side connecting member 20 by bolting to the lower end side of 19 and attaching the tension member holding member 17 to the lower end side of the holding member side connecting member 20, workability and reliability are ensured. Preferably, the tension material holding member 17 can be installed along the outer peripheral end 5 a of the ceiling portion 5.

  Further, as the connection suspension member 19, there are provided a suspension connection suspension member 19 a that is suspended by connecting the upper end to the upper structure 3, and an oblique connection suspension member 19 b that is obliquely disposed by connecting the upper end to the upper structure 3. The lower ends of the vertically-suspended connecting suspension member 19a and the oblique connecting suspension member 19b are connected to each other, and the tensile material holding member 17 is connected to the connecting portion between the lower ends via the holding member-side connecting member 20. Thereby, the tensile force which acts on the tension | tensile_strength material 11 at the time of an earthquake can be disperse | distributed and supported to the suspending connection suspension material 19a and the diagonal connection suspension material 19b, and the rolling of the suspended ceiling structure C is effective by the tension material 11. Can be suppressed.

Moreover, in the earthquake-proof repair method of the suspended ceiling structure of this embodiment, this bolt is used using a bolt mounting jig 30 in which a tubular body 32 having elasticity is attached to the tip of a linear body 31 of a rope body or a chain. A bolt insertion hole that is formed on the tension member holding member 17 and the holding member side connecting member 20 and communicates with each other by fitting the shaft portion to the distal end of the tube body 32 of the mounting jig 30 so as to be detachable. The linear body 31 is inserted through 21 and 23, and the linear body 31 is pulled to insert the shaft portion of the tube body 32 and the bolt 24 into the bolt insertion holes 21 and 23.
Thereby, the pipe body 32 is removed from the shaft portion of the bolt 24, and the nut 25 is fastened to the shaft portion of the bolt 24, whereby the tension material holding member 17 and the holding member side connecting material 20 can be bolted together. Even if the gap between the holding member 17 and the ceiling member 6 is small, it is possible to suitably perform the bolt joining operation.

  Therefore, according to the suspended ceiling structure C and the seismic retrofitting method of the suspended ceiling structure of the present embodiment, the end of the substantially rod-shaped tension member 11 that is fixedly installed on the ceiling member 6 or the ceiling base 7 is suitable for the building frame. It becomes possible to connect to.

  As mentioned above, although one embodiment of the suspended ceiling structure and the seismic retrofitting method for the suspended ceiling structure according to the present invention has been described, the present invention is not limited to the above-described embodiment, and is appropriately within a range not departing from the spirit thereof. It can be changed.

  For example, in the present embodiment, the ceiling foundation 7 is configured to include the field edge 1 and the field edge receiver 2, but the ceiling foundation according to the present invention is not necessarily limited to the present embodiment. For example, a plurality of T bars that are suspended and supported by the suspension bolts (suspending members) 4 and arranged in parallel in one horizontal direction T1 at a predetermined interval and extend in the other direction T2 orthogonal to the one direction T1. The ceiling base 7 may be configured to include a (reverse T-shaped support member). That is, the present invention does not need to limit the configuration of the ceiling foundation.

In the present embodiment, the connecting portion 27 of the end connecting member 18 includes a pair of side wall portions 27 a and a continuous portion 27 b and is formed in a U-shaped cross section, and the end of the tensile material 11 is connected to the pair of connecting portions 27. It demonstrated as what is bolt-joined to the side wall part 27a.
On the other hand, in the present invention, the end connecting member 18 is fixed to the tensile material holding member 17, and one end of the end connecting member 18 is fixed to the fixing portion 26 so as to extend in the lateral direction. And a connecting portion 27 that joins the two. For this reason, it is not necessary to limit the joining structure (joining method) of the tension | pulling material 11 and the connection part 27 like this embodiment in particular.

  Furthermore, in this embodiment, although the tensile material holding member 17 was demonstrated as what is arrange | positioned along the outer peripheral end part 5a of the ceiling part 5 (at the outer peripheral end part 5a side), the tensile material holding member 17 is It only needs to be disposed along the ceiling portion 5, and does not necessarily have to be disposed on the outer peripheral end portion 5 a side of the ceiling portion 5.

1 Field edge 2 Field edge receiver 3 Superstructure (building frame)
4 Hanging members (hanging bolts)
5 Ceiling part 5a End part 6 Ceiling material (ceiling panel)
7 Ceiling base 8 T-bar 9 Building component (building frame)
DESCRIPTION OF SYMBOLS 10 Reinforcement brace 11 Tensile material 11a Side wall part 11b Connection part 15 Tensile material connection structure 16 Housing connection means 17 Tensile material holding member 18 End connection member 19 Connection suspension material 19a Hanging connection suspension material 19b Diagonal connection suspension material 20 Member side connecting member 20a Upper connection portion 20b Lower connection portion 21 Bolt insertion hole 22 Insertion hole 23 Bolt insertion hole 24 Bolt 25 Nut 26 Adhering portion 27 Connection portion 27a Side wall portion 27b Connecting portion 28 Bolt 29 Nut 30 Bolt mounting treatment Tool 31 Linear body 32 Tube A Conventional suspended ceiling structure B Conventional suspended ceiling structure C Suspended ceiling structure H Ceiling space T1 Lateral direction (one direction)
T2 lateral direction (other direction)
T3 vertical direction

Claims (3)

In the suspended ceiling structure in which the ceiling material that forms the ceiling surface is attached to the ceiling base that is suspended and supported by the upper structure of the building frame via the hanging member,
A tension material disposed below the ceiling material and along the ceiling surface, and a tension material connection structure for connecting the tension material and the building frame,
The tensile material holding member is supported by being connected to the building frame by a frame connecting means, and is arranged along a ceiling portion made of the ceiling base and the ceiling material, and the tensile material holding member And an end connecting member for connecting the end of the tensile material to
The end connection member includes a fixing portion fixed to the tensile material holding member, and a connection portion that is fixed in the lateral direction with one end fixed to the fixing portion, and joins the end portion of the tensile material. Formed ,
The housing connecting means connects the upper end to the upper structure and is connected in the ceiling space, and the lower end side is arranged below the ceiling material, and the upper end side is arranged in the ceiling space, A suspended ceiling structure comprising: a lower end of the connecting suspension member that is bolted to the upper end side; and a holding member side connection member that bolts the tensile material holding member to the lower end side . The suspended ceiling structure according to claim 1 ,
The upper structure is connected to the upper structure, the lower ends are connected to each other, and a suspended connection suspension member and an oblique connection suspension member disposed in the ceiling space are provided as the connection suspension member. Suspended ceiling structure. A method for making a suspended ceiling structure quake-resistant by attaching a ceiling material that forms a ceiling surface to a ceiling base that is suspended and supported by an upper structure of a building frame via a suspension member,
A tensile material installation step of disposing a tensile material below the ceiling material and along the ceiling surface;
A connected suspension material installation step of connecting the upper end to the upper structure and disposing a connection suspension material in the space behind the ceiling,
A holding member side connecting material installation step of arranging a holding member side connecting material by arranging a lower end side below the ceiling material and an upper end side in the ceiling space and joining the lower end of the connecting suspension material to the upper end side. When,
A tension material holding member installation step of disposing a tension material holding member along an outer peripheral end portion of the ceiling portion made of the ceiling base and the ceiling material, and bolting the tension material holding member to the holding member side connecting material. When,
An earthquake resistance method for a suspended ceiling structure, comprising: an end connection member fixed to the tensile material holding member; and a tensile material connection step for joining the end portions of the tensile material.

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