JP7083447B2 - Door frame mounting device in highly earthquake-resistant partition device - Google Patents

Description

The present invention relates to a door frame mounting device in a highly earthquake-resistant partition device, and more particularly to a door frame mounting device that prevents the door frame from rising even if a large interlayer displacement occurs during an earthquake.

Normally, in an office building or the like, each floor is formed by a plurality of slabs, a suspended ceiling structure is constructed on the lower surface side of the upper slab, and a floor structure is constructed on the upper surface side of the lower slab, which is surrounded by a structural wall. The space is appropriately partitioned by a partition device. Normally, in a suspended ceiling structure, a ceiling support rail stretched vertically and horizontally is held in a suspended shape by a suspension support member (suspension bolt) hanging from an upper slab, and the ceiling support rail is locked around the ceiling panel. It is a structure to do. In a room having such a suspended ceiling structure, a partition device combining a partition panel and a door panel is installed from the ceiling panel to the floor structure. Conventionally, there was no seismic standard for suspended ceiling structures, but many suspended ceiling structures have fallen and damaged due to the Great East Japan Earthquake, and the momentum to improve the seismic resistance of ceilings has increased. Even in such a partition device, it is considered necessary to withstand an interlayer deformation angle of 1/60 to 1/40, a seismic intensity of 7, and a ceiling surface acceleration of 22 G.

Generally, in a partition device, a plurality of columns are erected at predetermined intervals between a top rail attached to the lower surface of a suspended ceiling structure and a ground rail attached to the upper surface of a floor structure, and each of the columns is provided. A panel plate is attached to form a panel structure in which a plurality of columns and panel plates are connected in a series, and a door is provided between the columns at appropriate positions. Among them, in particular, as a measure against inter-story displacement during an earthquake, the door frame is locked so as to be upwardly displaceable with respect to the support column as in Patent Document 1, and when the support column is locked during an earthquake, the door frame and the door panel are used. A lifting force acts on the opposite side of the door structure with the locking portion of one of the columns as a fulcrum, and one of the vertical door frames constituting the door frame moves upward with respect to the column, but when the column returns vertically. , A door device in a highly seismic partitioning device is provided in which a vertically moved vertical door frame is also returned to the original locked state.

JP 2016-138426

By the way, in the case described in Patent Document 1, the lower end portion of the vertical door frame is vertically slidably fitted and held in a holding metal fitting installed in a floor structure, and when locking occurs during an earthquake, the lower end thereof is held. As the column is tilted, the vertical door frame moves upward with respect to one of the holding metal fittings, and when the column returns to the vertical state, the vertical door frame moves downward with respect to the holding metal fitting to the original mated state. I am trying to return to. However, even with a door device that takes into consideration inter-story displacement during an earthquake as in Patent Document 1, when an earthquake more than expected occurs, the vertical door frame moves too much with respect to the column, and the column Although the vertical door frame is locked, the lower end of the vertical door frame may move up to a position higher than the holding bracket, and even if the column returns to the vertical state from that state, the vertical door frame may be moved up. The lower end of the door is on the upper end of the holding bracket. When the support column is tilted in the opposite direction from the state where the lower end of the vertical door frame rides on the upper end of the holding metal fitting and does not return to the original locked state, the opposite side of the door structure is set with this riding portion as a fulcrum. It is expected that the vehicle will move further upward and the lock on the column of the vertical door frame on the opposite side will be released.

Therefore, what the present invention seeks to solve in view of the above-mentioned situation is that in the door frame in the highly earthquake-resistant partition device and its mounting device, even if the door frame rises due to the interlayer displacement during a large earthquake, the door frame is on the holding metal fitting. The point is to provide a door frame mounting device in a highly seismic partitioning device that prevents the vehicle from riding on the door frame.

The present invention constitutes a door frame mounting device in the highly earthquake-resistant partition device shown below in order to solve the above-mentioned problems.

(1)
A plurality of columns are erected between the earthquake-resistant suspended ceiling structure and the floor structure at predetermined intervals, and a panel plate is attached between the columns to construct the panel structure, and between the predetermined columns. In a highly earthquake-resistant partition device in which a door frame that supports a door panel is arranged to construct a door structure, when a support is locked during an earthquake, the vertical door frame that constitutes the door frame is moved upward with respect to the support. The vertical door is locked so as to be displaceable, and the lower end of the vertical door frame is directly or indirectly fixed to the floor structure and fitted to a holding metal fitting provided with a guide portion so as to be slidable up and down. Even if the lower end of the frame is lifted above the holding metal fitting, the lower ends of both vertical door frames are guided by the guide portion so that the door structure can be returned to the initial position, and the vertical door frame of the door frame can be returned to the initial position. Is fitted to the holding metal fitting, and the fitting height of the holding metal fitting is lower than the locking depth at the locking portion of the hook that locks the vertical door frame to the support. Device.

(2)
The door frame in the highly earthquake-resistant partition device according to (1) , wherein the holding metal fitting provides an inclined portion at the upper end portion on the support column side as the guide portion, and the lower end of the vertical door frame is slidably guided by the inclined portion. Mounting device.

The door frame mounting device in the highly earthquake-resistant partition device of the present invention as described above has the following effects.

According to the configuration of (1), a plurality of columns are erected between the earthquake-resistant suspended ceiling structure and the floor structure at predetermined intervals, and a panel plate is attached between the columns to form the panel structure. In a highly earthquake-resistant partition device that constructs a door structure by arranging a door frame that supports a door panel between predetermined columns while constructing the door frame, when the columns are locked during an earthquake, the door frame is relative to the columns. The vertical door frame constituting the above is locked so as to be able to be displaced upward, and the lower end portion of the vertical door frame is directly or indirectly fixed to the floor structure and fitted to a holding metal fitting provided with a guide portion so as to be slidable up and down. Even if the column is locked and the lower end of the vertical door frame is lifted above the holding metal fitting, the lower ends of both vertical door frames are guided by the guide portion so that the door structure is returned to the initial position. As a result, even if the column is greatly tilted due to the interlayer displacement during a large earthquake and the lower end of the vertical door frame of the door frame is lifted above the holding bracket, the door frame guides the holding bracket when tilted to the opposite side. By being guided by the part and returning to the initial position, the door structure can also be returned to the initial position, so that the cumulative rise of the door frame can be prevented and the door frame can be prevented from falling off from the support. Further, the vertical door frame of the door frame is fitted onto the holding metal fitting, and the fitting height of the holding metal fitting is lower than the locking depth at the locking portion of the hook that locks the vertical door frame to the support column. Therefore, the vertical door frame of the door frame can be locked to the hook, and at the same time, the vertical door frame can be smoothly fitted to the holding metal fitting, which is excellent in workability.

According to the configuration of (2), the holding metal fitting is provided with an inclined portion at the upper end portion on the support column side as the guide portion, so that the support column is locked and the lower end of the vertical door frame is from the holding metal fitting. After being lifted to the upper position, the lower end of the vertical door frame is slid and guided by the inclined portion in order to return to the original mated state, so that the lower end of the vertical door frame of the door frame is lifted above the holding metal fitting. When moving down from the standing state, the lower end of the vertical door frame fits into the holding bracket without riding on it, and the door structure can be returned to the initial position when the earthquake subsides, so the door panel Can be opened and closed smoothly.

It is a partial front view which shows the earthquake-resistant partition device to which the door frame mounting device of this invention is applied. It is a schematic perspective view of the door device to which the door frame mounting device of this invention is applied. Similarly, it is an exploded front view which shows the relationship between a support and a door frame. Similarly, it is an exploded perspective view which shows the relationship between a support and a door frame. Similarly, it is an exploded perspective view which shows the relationship between a support and a vertical door frame on the left side. (A) of the holding metal fitting is a cross-sectional plan view, and (b) is a perspective view. It is an exploded perspective view which shows the state which locks the vertical door frame on the left side to a support. Similarly, a state in which the left vertical door frame is locked to the support column is shown, (a) is a vertical sectional front view, and (b) is a cross-sectional plan view. Similarly, a state in which the vertical door frame on the left side is locked to the support column is shown, (a) is a vertical sectional front view, and (b) is a cross-sectional plan view. It is a vertical sectional side view which shows the structure which attaches the interstitial panel to the upper part of a door frame. It is a cross-sectional plan view of a panel structure and a door structure connected. It is an enlarged front view which shows the initial position of both vertical door frames of a door frame and a holding metal fitting. It is an enlarged front view showing the state of the door frame at the time of prop locking, (a) immediately after locking, (b) in the middle of returning to the initial position after locking, and (c) after returning. It is a partial front view which shows the change of the seismic partition device when the interlayer displacement from the state of FIG. 1 to the left side in the in-plane direction is multiplied. It is a partial front view which shows the change of the seismic partition device when the interlayer displacement from the state of FIG. 1 to the right side in the in-plane direction is multiplied.

Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. FIG. 1 shows a seismic partition device to which the door frame mounting device 50 of the present invention is applied, and FIGS. 2 to 12 show details of the present invention. In the figure, reference numeral 1 is a panel structure, 2 is a door structure, 3 is a top rail, 4 is a ground rail, 5 is a support, 6 is a panel plate, 7 is a door frame, 8 is a door panel, and 9 is a column panel. ing.

The door frame mounting device 50 according to the seismic partition device according to the present invention is a device for mounting the door frame 7 in the seismic partition device including the connected panel structure 1 and the door structure 2. As shown in 1, a plurality of columns 5, ... Are provided between the top rail 3 attached to the lower surface of a seismic-resistant suspended ceiling structure (not shown) and the ground rail 4 laid on the floor structure (not shown). A door frame that stands at intervals and mounts a panel plate 6 between the columns 5 and 5 to construct the panel structure 1 and supports the main door panel 8A and the sub door panel 8B between the predetermined columns 5 and 5. The door structure 2 is constructed by arranging the door frame 7, and the door frame mounting device 50 including the holding metal fitting 13 in which the door frame 7 is arranged on the ground rail 4 and the screw 63 for mounting the door frame 7 is constructed. The door frame mounting device 50 of the present invention is characterized in that the door frame 7 does not ride on the holding metal fitting 13 even if the support column 5 is locked during an earthquake.

Here, the panel structure 1 has a locking specification and a slide specification. In the panel structure 1 having a locking specification, the columns 5 and 5 are connected at least at regular intervals by cross rails, the upper end of the column 5 is the top rail 3, and the lower end of the column 5 is the above. A panel plate 6 that can follow the displacement of the ground rail 4 and is locked with a locking tool so that it can be displaced upward between the columns 5 and 5, so that it can be locked and displaced in the plane with respect to the interlayer displacement of the upper and lower slabs. Is. Here, "locking" indicates an operation in which a plurality of columns 5, ... Are kept parallel and tilted to the left and right, and the panel plates 6, ... Are also tilted to the left and right accordingly. The present invention is premised on this locking specification.

Incidentally, in the panel structure 1 of the slide specification, a slide means that allows movement in the direction along the ground rail 4 is provided at the lower end portion of the support column 5, and a plurality of reinforcing members (FIG. 5) are provided between the support columns 5 and 5. (Not shown) are connected to form a frame with a rigid structure, a panel plate 6 is mounted between the columns 5 and 5, and the top rail 3 and the ground rail 4 are in-plane with respect to the interlayer displacement or parallel displacement of the upper and lower slabs. It is possible to slide and displace with respect to. Here, "slide" means to be guided by the top rail and the ground rail and move in the longitudinal direction thereof.

Here, if an inter-story displacement occurs between the upper slab and the lower slab of the building due to an earthquake, the wall surface, corner columns, and reinforcing columns provided at appropriate intervals tilt to the left and right. Assuming that the inter-story deformation angle is 1/40 of the maximum, when the floor height (slab spacing) is 4200 mm, the inter-story displacement is 105 mm, and the displacement of the earthquake-resistant suspended ceiling structure that moves following the slab is also 105 mm. Become. This means that a standard ceiling with a ceiling height of 2800 mm is displaced 105 mm on one side with respect to the floor surface.

More specifically, in the highly earthquake-resistant partition device, the ground rail 4 is laid except for the position where the door structure 2 is provided facing the top rail 3, and a predetermined distance is provided between the top rail 3 and the ground rail 4. The stanchions are erected in the above columns, and the panel plates 6, ... Are locked on both the front and back surfaces by using the stanchions 5, ... To construct the panel structure 1. Although not shown, the panel plate 6 may be a glass panel in which a glass plate is held by a frame.

As shown in FIGS. 1 to 4, the door frame 7 has a front-viewing U-shape in which the upper door frame 12 is connected between the upper ends of the vertical door frames 11 and 11 on both sides. The vertical door frame 11 has a channel shape that fits outside the support column 5, and with substantially half of the support column 5 received in the concave groove, the lower ends of both vertical door frames 11 and 11 are placed in a floor structure. It is slidably inserted into the holding metal fitting 13 directly fixed to the floor structure, or indirectly fixed to the floor structure, for example, to the holding metal fitting 13 connected to the end of the ground rail 4 laid on the floor structure. Further, the locking member 14 provided with the upward hook 16 is fixed to the upper and lower positions of the support column 5, and the engaging hole 18 for receiving the upward hook 16 of the locking member 14 from below to the vertical door frames 11 and 11. The receiving member 17 provided with the above is fixed, and only the vertical door frame 11 is allowed to be displaced upward in a state where the engaging hole 18 of the receiving member 17 is engaged with the upward hook 16 of the locking member 14. However, it is an engagement structure that regulates horizontal displacement.

As shown in FIGS. 5 and 7, the support column 5 is a general-purpose product having a substantially C-shaped cross section, and is composed of front and rear face plates 19, 19 and side plates 21, and the opposite side of the side plates 21 is released and concave. The groove 22 is formed. A plurality of locking member fixing screw holes 5A are formed in two rows at regular intervals in the vertical direction on the side plate 21, and the locking member 14 is fixed by the locking member fixing screws 20. In the present embodiment, both columns of the door structure 2 are arranged so that the outsides of the side plates 21 face each other. The support column 5 can also have a substantially square cross section, that is, a square cylinder shape.

As shown in FIGS. 5 and 7 to 9, the receiving member 17 has fixed plates 25, 25 for spot welding inside the vertical door frame 11 bent above and below the support base 24 having a U-shaped cross section. The engaging holes 18 and 18 for receiving the upward hook are formed in parallel on the parallel upper surface 26 and the lower surface 27 of the support base 24, respectively.

The vertical door frame 11 has an internal space 28 that is larger than the cross-sectional dimension of the support column 5 and is open to one side that can accept approximately half of the support column 5 in a fitted state, and both end edges on the release side. It has edge plates 29, 29 bent inward facing each other, and a pedestal 30 for door stop is formed over the entire length along one front and rear end of the outer surface. The left and right vertical door frames 11 and 11 have a symmetrical shape. Further, both ends of the upper door frame 12 can be connected to the upper ends of the vertical door frames 11 and 11 with screws.

Then, in a state where a plurality of locking members 14 are screwed to the columns 5 and 5 on both sides at predetermined positions above and below, the adjuster 31 attached to the lower end of the column 5 is placed in the concave groove of the ground rail 4 which is open upward. While standing upright, the upper end is fitted to the ceiling rail 3 which is open downward.

Then, as shown in FIGS. 3 and 8, the engaging holes 18 and 18 on the lower surface 27 of the receiving member 17 fixed to the vertical door frame 11 on the upward hooks 16 and 16 of the locking member 14 attached to the support column 5. At the same time, the engaging holes 18 and 18 on the upper surface 26 are engaged with each other at the same time, and at the same time, the lower end is externally fitted to the holding metal fitting 13 so as to be slidable up and down. In this state, substantially half of the support column 5 is housed in the internal space 28 of the vertical door frame 11, and the holding metal fitting 13 is completely hidden in the internal space 28. In the present embodiment, a receiving member 17 that is not used for engaging the upward hooks 16 and 16 is fixed to the lower end of the vertical door frame 11, and when the receiving member 17 is attached to the support column 5, the receiving member 17 is attached. The lower surface 27 of the above is fixed to the holding metal fitting 13.

Here, the engaging depth of the upward hook 16 of the locking member 14 is set so as not to come off from the engaging hole 18 formed in the lower surface 27 of the receiving member 17 even if the support column 5 is greatly tilted. In the form, the vertical dimension of the upward hook 16 is 60 mm.

The holding metal fitting 13 has a U-shaped front view like the door frame 11, and is composed of the metal fitting outer side plates 60, 60 and the metal fitting inner side surface plates 61, 61, and the holding groove 62 is formed by the metal fitting inner side surface plates 61, 61. Is formed. The ground rail 4 is received in the holding groove 62 and fixed with screws 63 and 63. Inclined portions 64, 64 are formed at the upper end portions of the metal fitting outer face plates 60, 60 on the support column side as guide portions for guiding the door frame 11. The inclined portion 64 is provided, for example, by cutting out the metal fitting outer face plates 60, 60, or by tapering or bending the metal fitting outer face plates 60, 60.

As shown in FIGS. 12 and 13, the panel structure 1 and the door structure 2 are largely displaced to the left and right during an earthquake, particularly during an interlayer displacement caused by a long-period seismic vibration. As a result, when the support column 5 is locked and, for example, the support column 5 and the door frame 7 are inclined to the left at a deflection angle θ, the right vertical door frame 11 and the support column 5 are inclined to the left direction, as shown in FIG. 13A. As shown, the lower end of the right door frame may come off the holding metal fitting 13 and be lifted above the holding metal fitting 13. However, even if the vertical door frame 11 is displaced and lifted above the holding metal fitting 13, the right vertical door frame 11 is guided by the inclined portion 64 provided on the holding metal fitting 13, as shown in FIGS. 13 (b) and 13 (c). It is done and returns to the initial position. Since the vertical door frame 11 is engaged with the locking member 14 of the support column 5, it is desirable that the fitting height of the holding metal fitting 13 is lower than the locking depth of the locking member 14 by the upward hook 16. It is also possible to allow the lower end of the door frame 11 to slide off, for example, by bending the inclined portion 64.

Then, as shown in FIGS. 3 to 5, hinge pins 33, 33 attached to the lower ends of both vertical door frames 11 and both ends of the upper door frame 12 as shown in FIGS. 3, 4, and 10. The hinge receivers (not shown) and the hinge pins 35, 35 provided at the upper and lower ends of the wide main door panel 8A and the narrow sub door panel 8B on the door end side are rotated on the hinge receivers 34, 34 attached to the above. At the same time as possible engagement, both ends of the upper door frame 12 are screwed and connected to the upper ends of both vertical door frames 11 and 11. In the embodiment, the left door panel is the main door panel 8A and the right door panel is the sub door panel 8B. It is also possible to.

In the door structure 2 of the present embodiment, the column panel 9 is attached to the upper part of the door frame 7, and the attachment structure thereof is shown in FIG. First, the upper door frame 12 has the same cross-sectional shape as the vertical door frame 11, and the internal space 28 is open upward and attached. Then, a gap S1 having a predetermined width is provided between both edge plates 29 and 29 of the upper door frame 12, and a cross rail 36 is arranged, and both ends thereof are connected to both columns 5 and 5 by using L metal fittings or the like. There is. The column panel 9 has a structure similar to that of a normal panel plate 6, and a core material 38 such as gypsum board is adhered to the back surface of a steel surface plate 37, and the lower end edge is the edge of the upper door frame 12. The locking piece 39 to be inserted into the gap S1 between the plate 29 and the cross rail 36 is bent and formed, and the upper edge plate 40 on the upper end edge and the receiving plate 41 provided on the back side thereof form a hanging plate of the top rail 3. It forms a slit S2 that is open upward to receive the lower part of 42. Further, on both sides of the column panel 9, the surface plate 37 is bent to the back side to form a back plate (not shown) parallel to the front plate 37, and the locking tool 10 is locked to the back plate. An engaging hole (not shown) is formed at least at the upper part. Then, with the locking tool 10 locked in the locking holes (not shown) on both the upper front and back sides of the column 5, the column panel 9 is lifted from diagonally below, and the ceiling rail 3 is inserted into the slit S2. While inserting the lower part of the hanging plate 42, the upward hook piece 43 of the locking tool 10 is received into the engaging holes at the upper portions on both sides (not shown) to be in a vertical posture, and then lowered downward to insert the locking piece 39 into the slit. At the same time as dropping into S2, it is locked to the locking tool 10.

The behavior of the highly seismic partitioning device configured in this way during an earthquake will be described with reference to FIGS. 14 and 15. Here, when the door is closed, the main door panel 8A and the sub door panel 8B are integrated and behave as one door panel 8, and further, the door panel 8 and the door frame 7 are integrated and behave as a rigid body. The following mainly describes the relationship between the support column 5 and the door frame 7. First, as shown in FIG. 14, when the support column 5 is tilted to the left side, the door frame 7 is lifted with respect to the right side column 5 with the locking portion for the left side locking member 14 as a fulcrum, and the right side column 5 is lifted. Tilt to the left at that position. On the other hand, the right side of each panel plate 6, ... Is lifted with the locking portion for the left column 5 as a fulcrum, and the right side of the panel plate 6 is lifted with respect to the corresponding right column 5, but the degree of lift is It is within the assumption, and the locking by the locking tool 10 that holds the panel plate 6 on the support column 5 is not disengaged. On the contrary, as shown in FIG. 15, when the support column 5 is tilted to the right side, the door frame 7 is lifted with respect to the left side column 5 with the locking portion for the right side locking member 14 as a fulcrum, and the left side column is lifted. 5 tilts to the right at that position. On the other hand, each panel plate 6, ... Is lifted on the left side with the locking portion for the right column 5 as a support, and the left side of the panel plate 6 is lifted with respect to the corresponding left column 5, but it is assumed that the panel plate 6 is lifted to that extent. It is inside, and the locking by the locking tool 10 does not come off. However, since the fitting height of the holding metal fitting 13 with respect to the vertical door frame 11 is lower than the locking depth at the locking portion of the hook 16 for locking the vertical door frame 11 to the support column 5, the interlayer displacement due to a large earthquake causes It is assumed that the support column 5 is greatly inclined and one of the vertical door frames 11 is lifted with respect to the support column 5, and the lower end of the vertical door frame 11 is above the holding metal fitting 13. When the support column 5 is tilted in the opposite direction, the lower end of the vertical door frame 11 is slidably guided by the inclined portion 64 provided on the holding metal fitting 13, and the lower end portion of the lower end of the vertical door frame 11 is externally fitted to the holding metal fitting 13. It smoothly returns to the initial state.

S1: Gap S2: Slit 1 Panel structure 2 Door structure 3 Top rail 4 Ground rail 5 Strut 5A Locking member fixing screw hole 6 Panel plate 7 Door frame 8 Door panel 8A Main door panel 8B Sub door panel 9 Column space panel 10 Locking tool 11 Vertical door frame 12 Upper door frame 13 Holding bracket 14 Locking member 16 Hook 17 Receiving member 18 Engaging hole 19 Face plate 20 Locking member fixing screw 21 Side plate 22 Concave groove 24 Support base 25 Fixing plate 26 Top surface 27 Bottom surface 28 Inside Space 29 Edge plate 30 Abutment 31 Adjuster 33 Hinge pin 34 Hinge receiver 35 Hinge pin 36 Horizontal rail 37 Surface plate 38 Core material 39 Locking piece 40 Upper edge plate 41 Receiving plate 42 Hanging plate 43 Hook piece 50 Door frame mounting device 60 Outside of metal fittings Face plate 61 Metal fitting inner side plate 62 Retaining groove 63 Screw 64 Inclined part θ Deflection angle θ

Claims (2)

A plurality of columns are erected between the earthquake-resistant suspended ceiling structure and the floor structure at predetermined intervals, and a panel plate is attached between the columns to construct the panel structure, and between the predetermined columns. In a highly earthquake-resistant partition device in which a door frame that supports a door panel is arranged to construct a door structure, when a support is locked during an earthquake, the vertical door frame that constitutes the door frame is moved upward with respect to the support. The vertical door is locked so as to be displaceable, and the lower end of the vertical door frame is directly or indirectly fixed to the floor structure and fitted to a holding metal fitting provided with a guide portion so as to be slidable up and down. Even if the lower end of the frame is lifted above the holding metal fitting, the lower ends of both vertical door frames are guided by the guide portion so that the door structure can be returned to the initial position, and the vertical door frame of the door frame can be returned to the initial position. Is fitted to the holding metal fitting, and the fitting height of the holding metal fitting is lower than the locking depth at the locking portion of the hook that locks the vertical door frame to the support. Device. The door frame in the highly earthquake-resistant partition device according to claim 1 , wherein the holding metal fitting provides an inclined portion at the upper end portion on the support column side as the guide portion, and slides and guides the lower end of the vertical door frame at the inclined portion. Mounting device.

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