JP4012786B2 - Floor joint cover device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor joint cover device that covers joints between floors of adjacent buildings.
[0002]
[Prior art]
In a building whose lower part is supported by a seismic isolation device having a shock absorbing function, horizontal shaking during an earthquake tends to increase. A relatively wide joint capable of absorbing the shaking is formed between adjacent seismic isolation structures and adjacent artificial ground, which is suitable for joints of such seismic isolation structures. A floor joint cover device that can be used has been previously filed by the present applicant as Japanese Patent Application No. 2002-185301.
[0003]
In the floor joint cover device according to the prior application, as shown in FIG. 9, a slider a is disposed at one end of a cover body C that is passed over the joint s between the floors of adjacent buildings and covers the joint s. A structure has been proposed in which a rail member b that supports the slider a so as to be slidable in the direction along the joint s is provided on the side edge of the floor f1 of one building A. In such a configuration, when the floors of adjacent buildings are displaced relative to each other in the front-rear direction (the direction along the joint s) in the event of an earthquake, the cover is provided via the sliding action of the slider a supported by the rail member b. One end of the body C slides in the front-rear direction along the side edge of one floor f1, and follows the relative displacement. Accordingly, the floor joint cover device can be applied to a place where rising portions such as walls are formed on both front and rear sides of the other end of the cover body C.
[0004]
[Problems to be solved by the invention]
By the way, in the floor joint cover device, since the receiving edge portion c constituting the rail member b is horizontal, even if one end of the cover body C is brought into close contact with the side edge of the floor f1 during construction, The cover C is gradually displaced by the vibration generated when a person or a vehicle passes through the cover C, and a gap d is formed between the side edge of the floor f1 as shown in FIG. For this reason, it looks bad and there is a possibility that foreign matters such as sand and dust enter the gap d.
[0005]
An object of the present invention is to provide a floor joint cover device that can solve the conventional problems.
[0006]
[Means for Solving the Problems]
The present invention includes a cover body that is passed over a joint between floors of adjacent buildings and covers the joint, a slider disposed at one end of the cover body, and a side edge of one floor. In a floor joint cover device comprising a rail member that slidably supports the slider in a direction along the joint, the edge of the rail member that supports the slider is inclined downward toward one building side. It is the floor joint cover device characterized by using the inclined edge receiving portion.
[0007]
Here, the above configuration is a floor joint cover device in which the other end of the cover body is a free end, and the free end is slidably mounted on the floor side edge of the other building at least in the joint width direction. It is preferably applied.
[0008]
In such a configuration, since the inclined receiving edge portion of the rail member is inclined downward toward one building side, the slider supported by the inclined receiving edge portion is provided with the slider. There is always a force to move toward the object side. As a result, if one end of the cover body is brought into close contact with the side edge of the floor of one building, the cover body is held in position even if vibration occurs due to passage of a person or a car on the cover body, There is no gap between one end of the body and the side edge of the floor.
[0009]
In addition, a configuration is proposed in which an inclined surface that is inclined in the same direction as the inclined edge receiving portion is provided below the slider supported by the inclined edge receiving portion of the rail member. In such a configuration, since the lower portion of the slider is in surface contact with the inclined edge portion of the rail member, the load of the cover body is dispersed and the frictional resistance is reduced, so the slider toward the lower side of the inclined edge portion is reduced. Can be easily moved.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Below, one Example of this invention is described based on FIGS.
In the drawing, A is a base-isolated structure whose lower part is supported by a base-isolation device (not shown) having a buffering function, and B is a building made of artificial ground formed around the building A. Are adjacent to each other through the joint s. The joint s is formed with a predetermined width along the periphery of the building A, and can absorb the horizontal fluctuation of the building A and the surrounding building B in the event of an earthquake.
[0011]
At the side edge of the floor f2 of the building B, a horizontal receiving edge 1a that is relatively long in the left-right direction (width direction of the joint s) in the drawing, and from the outer end of the horizontal receiving edge 1a toward the upper surface of the floor f2. A sliding frame body 1 having an inclined receiving edge 1b inclined upward is disposed. As shown in FIG. 2, the sliding frame body 1 is formed in a predetermined length corresponding to the front-rear width of the cover body C along the joint s when the cover body C is arranged.
[0012]
A cover body C is passed between the floor f1 of the building A and the floor f2 of the building B to cover the joint s. As shown in FIG. 2, a plurality of the cover bodies C are continuously arranged in the direction along the joint s. Each cover body C has one end thereof as shown in FIG. The lower part is held on the side edge of the floor f1 of the building A through a holding means 5 described later so as not to move at least in the width direction of the joint s. The other end is a free end, and the free end is the sliding receiving frame. It is slidably mounted on the horizontal receiving edge 1a of the body 1. Here, on the side edge of the floor f2 of the building B, as shown in FIG. 2, rising portions 14, 14 such as walls constituting the building B are located on the sides of the cover bodies C, C located at both ends. The raised portions 14, 14 are in contact with the side edges of the cover bodies C, C at both ends, so that the free ends of the cover bodies C cannot move in the front-rear direction (the direction along the joint s). The position is regulated. Thereby, the free end of each cover body C can slide only in the left-right direction (width direction of the joint s) on the building B side.
[0013]
The free end of the cover body C is mounted on the horizontal receiving edge 1a so that a gap having an appropriate width is generated between the end edge 3 and the inclined receiving edge 1b of the sliding frame 1. The gap is the working gap 2. Further, on the horizontal receiving edge 1a of the sliding frame 1 on which the free end of the cover body C is mounted, a thin plate-like packing 15 having a sliding surface such as a fluorine resin coating on the upper surface is attached. The sliding surface of the packing 15 facilitates the sliding of the free end of the cover body C.
[0014]
As shown in FIG. 3, an end cover plate 4 is pivotally connected to the free end of the cover body C so as to be pivotable in the vertical direction by a hinge 6. Is mounted so as to be slidable on the upper surface of the floor f2 of the building B so as to be substantially flush with the upper surface 8 of the cover body C. The end cover plate 4 shields the upper side of the working gap 2.
[0015]
The cover body C is formed in a shallow container shape by a rectangular peripheral frame and a bottom plate, and a rigid base frame portion in which a plurality of main bars 12a and cross bars 12b are assembled in a lattice shape on the inner bottom portion thereof. 13 is disposed. The rigid base frame portion 13 has the same structure as that generally used as a grating, and the rigid base frame portion 13 obtains a predetermined strength capable of withstanding a load applied on the cover body C. In addition, an upper portion of the rigid base frame portion 13 is filled with a floor finish 10 made of mortar m, tile t, and the like.
[0016]
The holding means 5 will be described with reference to FIGS.
The holding means 5 is disposed on the side edge of the floor f1 of the building A and supports the slider 16 so as to be slidable in the direction along the joint s. And the rail member 17 to be configured.
[0017]
As shown in FIGS. 4 and 5, the rail member 17 includes an inclined edge 17a and a vertical edge 17b that are inclined toward one building A, and at the front end of the inclined edge 17a, The front end edge is formed in a substantially L-shaped cross section having a locking edge portion 17c bent upward, and has a predetermined length so that the slider 16 can slide in the front-rear direction (direction along the joint s). Is formed. The locking edge portion 17c is a guide means for contacting the front edge of the slider 16 to prevent the slider 16 from falling off and guiding the slider 16 in the front-rear direction. Further, a thin plate-shaped packing 18 having a sliding surface such as a fluororesin coating formed on the upper surface is attached on the inclined receiving edge 17a, and the sliding of the slider 16 is performed by the sliding surface of the packing 18. To make it easier. Further, a drainage hole 24 penetrating in the vertical direction is provided at a lower position of the inclined receiving edge portion 17a, and rainwater or the like accumulated in the inclined receiving edge portion 17a is discharged downward by the drainage hole 24. To get.
[0018]
On the other hand, as shown in FIG. 6, the slider 16 is formed to have a length substantially the same as the lateral width of the cover body C using a square pipe as a material, and is fixed to the bottom plate of the cover body C by welding or bolting. It is fixed through means. Here, between the upper rear edge of the slider 16 and the lower surface of the cover body C, as shown in FIGS. 5 and 6, a spacer rod 19 made of a flat bar having a predetermined thickness is interposed, As a result, the slider 16 formed of a square pipe is inclined, and an inclined surface 20 is provided below the slider 16 and is inclined in the same direction as the inclined receiving edge portion 17 a of the rail member 17.
[0019]
As shown in FIG. 5 and the like, the rail member 17 is integrated with a flange 21 having an L-shaped cross section through fixing means such as welding. Here, between the front end upper surface of the flange 21 and the front end edge lower surface of the inclined receiving edge portion 17a of the rail member 17, a spacer rod 22 made of a flat bar having a predetermined thickness is interposed. The inclination angle of the inclined edge receiving portion 17a is maintained. The flange 21 is fixed to an anchor bolt 23 planted on the side edge of the building A with a nut 24, whereby the rail member 17 integrated with the flange 21 is attached to the side edge of the floor f1 of the building A. It is trying to be attached to. The rail member 17 is attached to a height position where the upper surface 8 of the cover body C is substantially flush with the upper surface of the floor f1 of the building A in a state where the slider 16 is supported.
[0020]
In such a configuration, the cover body C always covers the joint s at the steady position shown in FIG. Here, as shown in FIG. 4, the inclined receiving edge portion 17a of the rail member 17 that supports one end of the cover body C is inclined downward toward the one building A side. The slider 16 supported by the edge portion 17a is always subjected to a force that moves the slider 16 toward the one building A side. As a result, if one end of the cover body C is brought into close contact with the side edge of the floor f1 of one building A, even if vibration occurs due to passage of a person or a vehicle over the cover body C in a steady state, The position of the cover body C is maintained, and there is no gap between one end of the cover body C and the side edge of the floor f1. In addition, an inclined surface 20 that is inclined in the same direction as the inclined edge portion 17 a of the rail member 17 is provided at the lower portion of the slider 16, so that the lower portion of the slider 16 faces the inclined edge portion 17 a of the rail member 17. Since the contact and the load of the cover body C are dispersed to reduce the frictional resistance, the slider 16 can be easily moved to the lower side of the inclined receiving edge portion 17a.
[0021]
On the other hand, when the building A and the adjacent building B are relatively small and relatively displaced in the event of an earthquake, the free end of the cover body C moves over the horizontal receiving edge 1a of the sliding receiving frame 1 on the horizontal gap 1a. When the cover body C slides horizontally within the range of 2 to follow the relative displacement and is further greatly displaced, the cover body C tilts with one end of the cover body C on the building A side as a fulcrum as shown in FIG. The free end edge 3 can escape from the relative displacement by moving up along the inclined receiving edge 1 b of the sliding frame 1. At this time, the end cover plate 4 pivotally connected to the end edge 3 of the free end is in a state of being inclined downward by its own weight, and always slides in close contact with the upper surface of the floor f2 of the building B. It is possible to prevent traffic obstruction caused by the end cover plate 4 projecting hollow.
[0022]
Further, when the building A and the adjacent building B are relatively displaced in a direction away from each other, as shown in FIG. 8, the cover body C has a free end on the horizontal receiving edge 1 a of the sliding frame body 1. It slides horizontally in the direction opposite to the inclined receiving edge 1b to follow the relative displacement.
[0023]
When the earthquake ends and the building A and the building B return to the steady position, the free end of the cover body C also returns to the steady position on the horizontal receiving edge 1a shown in FIG. Body C returns to a steady state. At this time, if there is a gap between one end of the cover body C and the side edge of the floor f1, the cover body C is pressed toward the building A so as to close the gap. Even during such a pressing operation, the pressing operation can be easily performed because the force for moving the slider 16 toward the one building A side always acts.
[0024]
Further, when the building A and the adjacent building B are relatively displaced in the front-rear direction (the direction along the joint s), the free end of the cover body C becomes the rising portion 14 of the building B, as shown in FIG. 14, the end of the cover C on the side of the building A slides in the front-rear direction through the sliding action of the slider 16 supported by the rail member 17, and the relative displacement is caused. Can follow.
[0025]
Further, when the building A and the adjacent building B are relatively displaced in the vertical direction, the cover body C uses the one end held by the holding means 5 at the side edge of the floor f1 of the building A as a fulcrum. It tilts with the vertical movement of A or the adjacent building B and follows its relative displacement.
[0026]
The floor joint cover device according to the present invention can also be applied to a general building other than a base-isolated structure whose lower part is supported by the base isolation device.
[0027]
【The invention's effect】
In the present invention, as described above, the receiving edge portion of the rail member 17 that supports the slider 16 is the inclined receiving edge portion 17a that is inclined downward toward the one building side. It is possible to always apply a force that moves the vehicle toward the one building A side. As a result, if one end of the cover body C is brought into close contact with the side edge of the floor f1 of one building A, even if vibration occurs due to passage of a person or a vehicle over the cover body C in a steady state, The position of the cover body C is maintained, and there is no gap between one end of the cover body C and the side edge of the floor f1. In addition, an inclined surface 20 that is inclined in the same direction as the inclined edge portion 17 a of the rail member 17 is provided at the lower portion of the slider 16, so that the lower portion of the slider 16 faces the inclined edge portion 17 a of the rail member 17. Since the contact and the load of the cover body C are dispersed and the frictional resistance is reduced, there is an excellent effect that the slider 16 can be easily shifted to the lower side of the inclined receiving edge portion 17a. .
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing a construction state of a floor joint cover device according to the present invention.
FIG. 2 is a schematic plan view of a construction state illustrating, as an example, a state in which rising portions 14 and 14 are present on the side of a free end of a cover plate C;
FIG. 3 is an enlarged view of an end cover plate 4 portion.
FIG. 4 is an enlarged view of a holding means 5 portion.
5 is an enlarged view showing a separated state of the holding means 5 portion in FIG. 4. FIG.
6 is a perspective view of a slider 16 and a rail member 17. FIG.
FIG. 7 is an explanatory view showing the operation of the cover body C and the end cover plate 4 in a state where the building A and the building B are relatively displaced in the approaching direction.
FIG. 8 is an explanatory diagram showing the action of the cover body C in a state in which the building A and the building B are relatively displaced in a direction away from each other.
FIG. 9 is a side sectional view of a conventional configuration.
[Explanation of symbols]
A Building B Building C Cover body f1, f2 Floor s Joint 16 Slider 17 Rail member 17a Inclined edge (edge)
20 Inclined surface

Claims (2)

A cover body that is passed over a joint between floors of adjacent buildings and covers the joint; a slider disposed at one end of the cover body; and a slider disposed at a side edge of one floor. A floor joint cover device comprising a rail member slidably supported in a direction along
A floor joint cover device characterized in that a receiving edge portion of a rail member that supports the slider is an inclined receiving edge portion that is inclined downward toward one building side. The floor joint cover device according to claim 1, wherein an inclined surface that is inclined in the same direction as the inclined receiving edge portion is provided at a lower portion of the slider supported by the inclined receiving edge portion of the rail member.

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