JP2021038550A - Floor structure of expansion joint - Google Patents

Abstract

To provide a technique capable of simplifying a structure of a floor part of a building on which an end part of a floor panel is placed, in a floor structure of an expansion joint provided with the floor panel provided in a state of covering a gap between floor parts of both buildings in a connection part connecting two adjacent buildings.SOLUTION: A floor structure of expansion joint is provided with a slide support part 20 for slidably supporting one end side of a floor panel 10 along a deviation direction Y crossing a perspective direction X between two buildings 1, 2 in a plan view and a regulation sliding part 30 which is installed on a floor part 7 of buildings 1, 2 and regulates displacement along the deviation direction Y crossing the perspective direction X in a plan view while allowing sliding along the perspective direction X with respect to the floor panel 10; the regulation sliding part 30 is constituted by having a cut part 11b formed along the perspective direction X on the floor panel 10 and the cut part 11b erected along the perspective direction X on the floor part 7 of buildings 1, 2 and inserted into a projection part 32a.SELECTED DRAWING: Figure 1

Description

The present invention relates to a floor structure of an expansion joint provided with a floor panel provided so as to cover a gap between the floors of the two adjacent buildings at a connecting portion connecting the two adjacent buildings.

A floor structure of an expansion joint having a floor panel provided so as to cover a gap between the floors of the two buildings at a connecting portion connecting two adjacent buildings is known (for example, Patent Document 1). See.).
The floor structure described in Patent Document 1 is provided with a central maintenance mechanism that is erected over two buildings and holds a guide rail in the center of the gap while allowing relative displacement between the two buildings, and is provided on both sides of the guide rail. Floor panels are provided respectively. Further, one end side of each floor panel is slidably supported by a guide rail held at the center along a displacement direction that intersects the perspective direction between the two buildings in a plan view. On the other hand, the other end side of the floor panel, which is the opposite side, is restricted to a sliding direction along the perspective direction by a support rail provided on the floor of the building on which the floor panel is placed.

Japanese Patent No. 316001

However, in the floor structure of the expansion joint described in Patent Document 1, a support rail for limiting the sliding direction on the other end side of the floor panel in the perspective direction is provided on the lower side of the floor panel on the floor of the building. Need to be placed. Therefore, it is necessary to form a relatively thick recess for installing these support rails and the floor panel in the skeleton of the floor of the building, which causes complicated structure and cost increase.

In view of this situation, a main subject of the present invention is an expansion joint provided with a floor panel provided so as to cover a gap between the floors of the two adjacent buildings in a connecting portion connecting the two adjacent buildings. In the floor structure, the point is to provide a technique capable of simplifying the structure of the floor of the building on which the end of the floor panel is placed.

The first characteristic configuration of the present invention is a floor structure of an expansion joint provided with a floor panel provided so as to cover a gap between the floors of the two adjacent buildings at a connecting portion connecting the two adjacent buildings. There,
A slide support portion that slidably supports one end side of the floor panel along a displacement direction that intersects the perspective direction and the plan view between the two buildings.
It is installed on the floor of the building on which the other end side of the floor panel is placed, and intersects the floor panel in a plan view with respect to the perspective direction while allowing sliding along the perspective direction. It is equipped with a regulated sliding part that regulates displacement along the displacement direction, and
The regulated sliding portion has a notch formed in the floor panel along the perspective direction and a protrusion erected on the floor of the building along the perspective direction and inserted into the notch. It is in that it is composed of a part and a part.

According to this configuration, with respect to the floor panel provided so as to cover the gap between the floors of both buildings at the connecting portion between the two buildings, when both buildings are displaced from each other along the perspective direction. The regulated sliding portion allows the floor panel to slide along the perspective direction, while when both buildings are displaced from each other along the displacement direction, the slide support portion follows the displacement direction. Since the sliding movement of the floor panel is allowed, the floor panel can be displaced so as to appropriately follow the fluctuation of the relative positional relationship between the two buildings, and the state of covering the gap can be maintained.
Further, the regulated sliding portion provided on the floor of the building on which the other end of the floor panel is placed inserts a protrusion into the notch formed in the floor panel without using rails or the like. It is possible to regulate the displacement along the deviation direction while allowing the floor panel to slide along the perspective direction.

Therefore, according to the present invention, in the floor structure of the expansion joint provided with the floor panel provided so as to cover the gap between the floors of the two adjacent buildings in the connecting portion connecting the two adjacent buildings, the floor panel. It is possible to provide a technique that can simplify the structure of the floor of the building on which the end of the building is placed.

In the second characteristic configuration of the present invention, a comb-shaped portion formed by arranging a large number of comb teeth side by side with the cut portion interposed between adjacent portions is formed on the other end side of the floor panel.
The point is that the regulated sliding portion is composed of a sheath panel formed by arranging a large number of sheath portions side by side with the protrusions interposed between adjacent portions.

According to this configuration, a large number of comb teeth each of the comb-shaped portions formed at the other end of the floor panel are provided with respect to each of the large number of sheath portions of the sheath panel provided on the floor of the building. It is possible to allow the floor panel to slide along the perspective direction in the state of being inserted and removed. Further, in a form in which the side surfaces of a large number of comb teeth and the side surfaces of a large number of protrusions are in contact with each other, the displacement along the deviation direction with respect to the floor panel is ensured while avoiding stress concentration at these contact portions. Can be regulated.

The third characteristic configuration of the present invention is a center frame holding which is erected over the two buildings and holds the center frame in the central portion in the perspective direction between the two buildings while allowing the relative displacement of the two buildings. Equipped with a mechanism
The floor panel is provided on both sides of the center frame in the perspective direction with the slide support portion installed on the center frame.

According to this configuration, floor panels are provided on both sides of the center frame held in the center of the gap between the two buildings, so that even if the gap is wide, each floor panel can be placed in the gap. It is possible to improve the design by aligning the widths of the floor panels to the same width while making the width less than half the size. Further, each floor panel arranged on both sides of the center frame has a slide support portion that slidably supports one end side along the deviation direction in the center frame, so that the other end side is displaced. Regulatory sliding parts that regulate directional displacement can be installed on the floors of both buildings.

Horizontal sectional view (a) and vertical sectional view (b) of the floor structure according to the embodiment in a normal state. Horizontal sectional view (a) and vertical sectional view (b) of the floor structure according to the embodiment in a close state. Horizontal sectional view (a) and vertical sectional view (b) in a separated state of the floor structure according to the embodiment. Horizontal sectional view (a) and vertical sectional view (b) in a displaced state of the floor structure according to the embodiment. An exploded perspective view of a floor panel and a sheath panel in the floor structure according to the embodiment. Top view of the center frame holding mechanism in the normal state Top view of the center frame holding mechanism in close proximity Top view of the center frame holding mechanism in a separated state

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a floor structure 100 of an expansion joint in a normal state in which the width of the gap 3 between the two buildings 1 and 2 (distance between the buildings 1 and 2) is the normal width (hereinafter, “main floor structure”). It is referred to as "100"), and FIG. 2 shows a state of the main floor structure 100 in a close state in which the width of the gap 3 is reduced as compared with the above-mentioned normal state, and FIG. 3 shows a state of the main floor structure 100. The state of the main floor structure 100 in a separated state in which the width of the gap 3 is enlarged as compared with the normal state is shown, and FIG. 4 shows two buildings 1 and 2 in a plan view between the buildings 1 and 2. The state of the main floor structure 100 in the state of being displaced in the direction orthogonal to the perspective direction X is shown.

The main floor structure 100 is erected over two buildings 1 and 2 and has a center frame at the center in the perspective direction X between the two buildings 1 and 2 while allowing relative displacement between the two buildings 1 and 2. A center frame holding mechanism portion 50 for holding the 51 is provided. As for the configuration of the center frame holding mechanism unit 50, a known configuration can be adopted, and the detailed configuration in this embodiment will be described later.

The floor structure 100 is provided with a floor panel 10 provided in a connecting portion 5 connecting between two adjacent buildings 1 and 2 so as to cover a gap 3 between the floor portions 7 of the two buildings 1 and 2. The floor panel 10 is provided on both sides of the center frame 51 in the perspective direction X with the slide support portion 20 installed on the center frame 51. The main floor structure 100 has a symmetrical structure with the center frame 51 interposed therebetween.
Since floor panels 10 are provided on both sides of the center frame 51 held in the center of the gap 3 between the buildings 1 and 2 in this way, even if the gap 3 between the buildings 1 and 2 is wide. The width of each floor panel 10 can be made the same width while the width of each floor panel 10 can be reduced to less than half, and the design can be improved.

On the center frame 51 side of the floor panel 10, a slide support portion that slidably supports the end portion of the floor panel 10 along the deviation direction Y that intersects the perspective direction X between the two buildings 1 and 2 in a plan view. 20 is provided. The slide support portion 20 is configured such that a slider 22 fixed to the lower surface of the floor panel 10 slides on a rail 21 provided on the upper surface of the center frame 51 along the deviation direction Y. With this configuration, the end portion of the floor panel 10 on the center frame 51 side is slidably held along the deviation direction Y on the center frame 51 held at the center portion in the gap 3.

On the building 1 and 2 sides opposite to the center frame 51 side of the floor panel 10, the floor panel 10 is installed on the floor 7 of the buildings 1 and 2 on which the other end side of the floor panel 10 is placed. A regulated sliding portion 30 is provided that regulates displacement along the displacement direction Y while allowing sliding along the perspective direction X.
Further, the regulated sliding portion 30 does not use a rail or the like, but has a notch portion 11b formed in the floor panel 10 along the perspective direction X and a floor portion 7 of the buildings 1 and 2 in the perspective direction X. It is configured to have a protrusion 32a that is erected along the line and inserted into the notch 11b.

By providing the slide support portion 20 and the regulated sliding portion 30 with respect to the floor panel 10, both buildings 1 and 2 are displaced from each other along the perspective direction X (see FIG. 2). In the separated state (see FIG. 3), the regulated sliding portion 30 allows the floor panel 10 to slide along the perspective direction X. On the other hand, in a displacement state (see FIG. 4) in which both buildings 1 and 2 are displaced from each other along the displacement direction Y, the slide support portion 20 allows the floor panel 10 to slide and move along the displacement direction Y. .. As a result, the floor panel 10 is displaced by appropriately following the fluctuation of the relative positional relationship between the buildings 1 and 2, and the state of covering the gap 3 is maintained.

As shown in FIG. 5, the floor panel 10 is formed of a plate-shaped member having a substantially rectangular shape in a plan view, and on the building 1 and 2 sides of the floor panel 10, comb teeth 11a having a shape extending in the perspective direction X are provided. A comb-shaped portion 11 is formed in which a large number of the portions are arranged side by side along the deviation direction Y. In the comb-shaped portion 11, a plurality of cut portions 11b extending along the perspective direction X are arranged side by side along the deviation direction Y, and the comb teeth 11a are interposed between the adjacent cut portions 11b. It is formed.
The regulated sliding portion 30 is configured as a box-shaped sheath panel 31 whose surface facing the center frame 51 is open as an insertion port 31a into which the floor panel 10 is inserted. The sheath panel 31 is fixed to the buildings 1 and 2 so that the upper surface of the scabbard is flush with the floors 7 of the buildings 1 and 2. Inside the sheath panel 31, a large number of sheath portions 32, which are spaces extending in the perspective direction X, are arranged side by side along the deviation direction Y. In the large number of sheath portions 32, a plurality of protrusions 32a extending along the perspective direction X are arranged side by side along the deviation direction Y, and each of the protrusions 32a is formed adjacent to each of the protrusions 32a. Such a sheath panel 31 has a box-shaped main body member 31B in which the protrusion 32a is arranged inside and the upper surface and the surface on the insertion port 31a side are open, and a state in which the upper surface is covered with respect to the main body member 31B. It can be composed of the lid member 31A fixed by.

With such a configuration, each of the large number of comb teeth 11a included in the comb-shaped portions 11 formed at the ends of the floor panels 10 on the building 1 and 2 side is sheaths provided on the floor portions 7 of the buildings 1 and 2. Sliding along the perspective direction X with respect to the floor panel 10 is allowed in a state of being inserted and removed from each of a large number of sheath portions 32 included in the panel 31. Further, in a form in which the side surfaces of a large number of comb teeth 11a and the side surfaces of a large number of protrusions 32a are in contact with each other, displacement along the displacement direction Y with respect to the floor panel 10 while avoiding stress concentration at these contact portions. Will definitely be regulated.

[Center frame holding structure]
Next, the detailed configuration of the center frame holding mechanism unit 50 using each of the above-described embodiments will be described with reference to FIGS. 6 to 8.
Note that FIG. 6 shows a state of the center frame holding mechanism portion 50 in a normal state in which the width of the gap 3 between the two buildings 1 and 2 (distance between the buildings 1 and 2) is the normal width. FIG. 7 shows a state of the center frame holding mechanism portion 50 in a close state in which the width of the gap 3 is reduced as compared with the normal state, and FIG. 8 shows a state in which the width of the gap 3 is in the normal state. It shows the state of the center frame holding mechanism portion 50 in the separated state which is enlarged as compared with the above.

The center frame holding mechanism portion 50 is arranged on the back surface side (lower side) of the floor panel 10, and is provided in a state of being erected between the buildings 1 and 2.
A plurality of first connecting beams 55 and a plurality of second connecting beams 57 are bridged to each of the buildings 1 and 2, respectively.

The first connecting beam 55 is provided with a pair of movable shafts 56 that are slidable along the longitudinal direction of the connecting beam 55. Further, each movable shaft 56 engages with rails 6 arranged in each of the buildings 1 and 2, and is slidably held along the rails 6. In each of the buildings 1 and 2, the rail 6 is oriented in a direction orthogonal to the perspective direction X (vertical direction in FIGS. 6 to 8) between the buildings 1 and 2 in a plan view (horizontal direction in FIGS. 6 to 8). It is arranged along.
A plurality of the first connecting beams 55 are provided along the longitudinal direction of the center frame 51 constituting the center frame 51, and the adjacent first connecting beams 55 are inclined at different angles with respect to the longitudinal direction of the center frame 51. It is arranged.

The second connecting beam 57 is provided with a pair of movable shafts 58 that are slidable along the longitudinal direction of the connecting beam 57. Further, each movable shaft 58 is rotatably joined to each of the buildings 1 and 2 around an axial center along the vertical direction. A plurality of second connecting beams 57 are provided along the longitudinal direction of the center frame 51, and are arranged in parallel with each other.

In the center frame holding mechanism portion 50, an H-shaped steel center frame 51 is arranged in parallel with the facing surface between the building 1 and the building 2 in normal times. The center frame 51 is an example of the center frame in the present invention, and is arranged at the center of the gap 3 between the buildings 1 and 2.

The center frame 51 is mounted on the first connecting beam 55 and the second connecting beam 57 via the pivot portion 52. The pivot portion 52 is rotatably joined to the center frame 51 around an axial center along the vertical direction, and the connecting beam 55 is connected to the first connecting beam 55 and the second connecting beam 57. , 57 are slidably joined along the longitudinal direction.

The center frame holding mechanism portion 50 as described above holds the center frame 51 in the central portion in the perspective direction X between the two buildings 1 and 2, and changes from the normal state shown in FIG. 6 to the proximity state shown in FIG. The state can be changed to the separated state shown in FIG.

That is, when the horizontal force due to the earthquake acts on the buildings 1 and 2 from the normal state in which the seismic force does not act as shown in FIG. The positional relationship between 1 and 2 is in the close state shown in FIG.
On the other hand, when the horizontal force due to the earthquake acts on the buildings 1 and 2 from the normal state in which the seismic force does not act as shown in FIG. The positional relationship between 1 and 2 is in the separated state shown in FIG.
That is, when the state changes from the normal state shown in FIG. 6 to the close state shown in FIG. 7 or the separated state shown in FIG. 8, the movable shafts 56 at both ends of the first connecting beam 55 are provided on the rails 6 in the buildings 1 and 2. The first connecting beam 55 rotates about the pivot portion 52 of the center frame 51, and the movable shaft 58 provided in the buildings 1 and 2 slides along the second connecting beam 57. .. At this time, since the pivot portion 52 is arranged at the center of the first connecting beam 55 in the axial direction, the center frame 51 is held at the center of the gap 3 between the building 1 and the building 2.

[Another Embodiment]
Other embodiments of the present invention will be described. It should be noted that the configurations of the respective embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

(1) In the above embodiment, the floor panels 10 are provided on both sides of the center frame 51 held by the center frame holding mechanism portion 50 in the central portion of the gap 3 between the buildings 1 and 2 in the perspective direction X, respectively. For example, the center frame holding mechanism portion 50 may be omitted, and the entire gap 3 may be covered with one floor panel. Further, similarly to the center frame 51, a plurality of frames held in the middle of the gap 3 may be arranged, and floor panels may be provided between them.

(2) In the above embodiment, the comb-shaped portion 11 in which a large number of comb teeth 11a are arranged side by side is provided on the building 1 and 2 sides of the floor panel 10, but the regulated sliding portion 30 is provided with the large number of comb teeth 11a. Although a large number of sheath portions 32 to be inserted are formed of the sheath panel 31 formed inside, the shape and number of the comb teeth 11a and the sheath portions 32 can be appropriately changed. Regarding the skeleton configuration of the floor panel 10 and the regulated sliding portion 30, the regulated sliding portion 30 is flat with respect to the perspective direction X while allowing sliding along the perspective direction X with respect to the floor panel 10. It can be appropriately modified as long as it regulates the displacement along the displacement direction Y that intersects visually.

1 Building 2 Building 3 Gap 5 Connecting part 7 Floor part 10 Floor panel 11 Comb-shaped part 11a Comb tooth 11b Notch part 20 Slide support part 30 Restricted sliding part 31 Sheath panel 32 Sheath part 32a Protrusion part 50 Center frame holding mechanism part 51 Center frame 100 Floor structure X Perspective direction Y Shift direction

Claims (3)

It is a floor structure of an expansion joint provided with a floor panel provided so as to cover a gap between the floors of both buildings in a connecting part connecting two adjacent buildings.
A slide support portion that slidably supports one end side of the floor panel along a displacement direction that intersects the perspective direction and the plan view between the two buildings.
It is installed on the floor of the building on which the other end side of the floor panel is placed, and intersects the floor panel in a plan view with respect to the perspective direction while allowing sliding along the perspective direction. It is equipped with a regulated sliding part that regulates displacement along the displacement direction, and
The regulated sliding portion is a notch formed in the floor panel along the perspective direction, and a protrusion erected on the floor of the building along the perspective direction and inserted into the notch. The floor structure of an expansion joint that is composed of parts and parts. On the other end side of the floor panel, a comb-shaped portion is formed in which a large number of comb teeth are arranged side by side with the cut portion interposed between adjacent portions.
The floor structure of an expansion joint according to claim 1, wherein the regulated sliding portion is composed of a sheath panel in which a large number of sheath portions are arranged side by side with the protrusions interposed between adjacent portions. A center frame holding mechanism unit that is erected over the two buildings and holds the center frame in the central portion in the perspective direction between the two buildings while allowing the relative displacement of the two buildings is provided.
The floor structure of an expansion joint according to claim 1 or 2, wherein the floor panel is provided on both sides of the center frame in a state in which the slide support portion is installed on the center frame.

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