JP2011196094A - Temporary platform structure and construction method for conversion to girder-type platform - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a period for temporary lining when a fill-type platform is converted to a girder-type one.SOLUTION: A platform section of a temporary platform structure includes a lining plate, a frame section for supporting a plurality of lining plates which are laid in a planar shape, and a cross girder section for supporting the frame section. The frame section includes a pair of vertical joist materials which are elongated along the width direction of the platform, a pair of horizontal joist materials which are elongated along a depth direction and engaged with both ends of the pair of vertical joist materials, respectively, and a folding mechanism which makes the vertical and horizontal joist materials foldable by making the pair of horizontal joist materials rotated along a horizontal surface and making the one vertical joist material brought into contact with/separated from the other vertical joist material. A leading end of the platform comprises a frame section for the leading end, which is elongated along the longitudinal direction of the platform and supported by the horizontal girder section, and a plurality of lining plates for the leading end, which are laid in a planar shape and supported by the frame section for the leading end.

Description

  The present invention relates to a temporary home structure and a girder type home construction method.

  Conventionally, in order to replace the embankment type platform with a new home fence or improve the home, a girder type (PC version) home was temporarily converted into a temporary home. By the way, at the tip of the embankment type platform, because it is a structure that suppresses embankment materials such as masonry blocks, Oya stone blocks, retaining wall concrete type, etc., it becomes a construction method while removing this tip member and earth and sand, supporting work material Or, temporary homes have been made with square bars, plywood, rubber mats, etc. (see, for example, Patent Document 1).

JP-A-8-68015

However, when rehabilitating an embankment type platform that is in operation to a girder type home after operation, the work time from the last train at night to the first train is limited to 2-3 hours. Shortening the time is desired.
For this reason, the subject of this invention is aiming at the simplification of the temporary home structure at the time of converting a banking type platform into a girder type home, and shortening the construction time by a girder type home construction method.

The invention according to claim 1 is a temporary home structure used when the embankment type platform is changed to a girder type platform.
A home portion and a home tip portion located on the track side from the home portion;
The home part is
A lining plate,
A frame portion for supporting the plurality of lining plates laid in a planar shape;
A cross beam extending along the depth direction of the platform and supporting the frame portion;
The frame part is
A pair of vertical joists extending along the width direction of the platform;
A pair of horizontal joists that extend along the depth direction and engage with both ends of the pair of vertical joists, and
By rotating the pair of horizontal joists along the horizontal plane, one vertical joist is brought into contact with and separated from the other vertical joists, so that the vertical joists and the horizontal joists can be folded. And a folding mechanism
The home tip is
A frame portion for a tip extending along the longitudinal direction of the platform and supported by the cross beam portion;
A plurality of flat laying plates are provided, and a tip lining plate is supported by the tip frame portion.

The invention according to claim 2 is the temporary home structure according to claim 1.
The home tip portion has a support portion that supports the frame portion for the tip.

The invention according to claim 3 is the temporary home structure according to claim 2,
The support part is foldable.

The invention according to claim 4 is the temporary home structure according to any one of claims 1 to 3,
The frame portion for the tip includes a body portion having a concave shape when viewed from the side, and an adjustment portion attached to the tip portion of the body portion,
The adjusting portion is attached to the main body portion so as to be extendable and contractible.

The invention according to claim 5 is the temporary home structure according to any one of claims 1 to 4,
The lining plate and the tip lining plate have a height adjusting mechanism.

The invention according to claim 6 is the temporary home structure according to any one of claims 1 to 5,
It has the fixture which fixes the said flame | frame part for front ends, and the said lining board for front ends.

The invention described in claim 7
In the girder type home construction method that turns the embankment type platform into a girder type home,
While removing the decorative plate for the home from the home portion in the platform, removing the decorative plate for the tip from the tip of the home located on the track side from the home portion,
With respect to the removal position of the decorative plate for the home and the decorative plate for the tip, a plurality of cross beam portions extending along the depth direction of the platform are arranged,
In the home portion, a foldable frame portion for supporting the lining plate is bridged on the adjacent cross beam portion, and then the lining plate is laid in a plurality of planes on the frame portion. And
In the home tip portion, the tip frame portion extending along the longitudinal direction of the platform is spanned over the cross beam portion, and then a plurality of tip lining plates are formed on the tip frame portion. Laying in
The lining plate, the lining plate for the tip, the frame portion and the frame portion for the tip are removed, a PC plate is stretched over the cross beam portion, and a new home decorative plate and It is characterized by laying a decorative plate for the tip.

The invention according to claim 8 is the girder type home chemical construction method according to claim 7,
The leading edge lining board is detachable from the leading edge frame portion after the leading edge decorative board is removed until the PC board is laid.

According to the present invention, since the frame portion is foldable, it can be simplified as compared with a case where temporary covering is performed with a square member, a plywood, a rubber mat or the like as in the prior art.
Further, since the home portion and the home tip portion have separate structures, the home tip portion can have a structure unique to the tip portion without being restricted by the home portion. Thereby, it can be set as a structure suitable for each of a home part and a home front-end | tip part, and an operation | work can also be simplified according to it.
By these things, the construction time of the girder type home construction method can be shortened.

It is a perspective view which shows the temporary home structure of this embodiment. It is sectional drawing seen from the II-II cutting line of FIG. It is a top view which shows the flame | frame part before installing the lining board in FIG. It is a top view which shows the frame part single-piece | unit of this embodiment. It is a top view which shows the state which folded the flame | frame part of FIG. It is a top view which shows schematic structure of the flame | frame part for tips with which the temporary home structure of FIG. 1 is equipped. It is a side view which shows schematic structure of the flame | frame part for front ends seen from the VII-VII cutting line of FIG. It is a front view which shows schematic structure of the support part of this embodiment. It is a perspective view which shows the state which folded the support part of FIG. It is explanatory drawing which shows 1 process at the time of installation of the temporary home structure of FIG. 1, (a) is sectional drawing, (b) is a front view. It is explanatory drawing which shows 1 process at the time of installation of the temporary home structure of FIG. 1, (a) is sectional drawing, (b) is a front view. It is explanatory drawing which shows the time of removal of the temporary home structure of FIG. 1, (a) is sectional drawing, (b) is a front view. It is explanatory drawing which shows the modification of 1 process of FIG. 11, (a) is sectional drawing, (b) is a front view. It is explanatory drawing which shows the modification at the time of removal of FIG. 12, (a) is sectional drawing, (b) is a front view.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing a temporary home structure of the present embodiment, and FIG. 2 is a sectional view taken along the line II-II in FIG. In addition, the dashed-dotted line P in FIG. 1 has shown the base which is not a repair object in a platform.

As shown in FIGS. 1 and 2, the temporary home structure 1 includes a home part 100 and a home tip part 200 located on the track side of the home part 100.
The home portion 100 is made of an H-shaped steel that extends along the depth direction Y of the platform P and supports the frame portion 20, the frame portion 20 that supports the lining plate 10, the plurality of lining plates 10. And a cross beam portion 30.

The lining plate 10 is a long metal plate-like member, and is disposed so as to extend along the width direction X of the platform P as shown in FIG. The lining plate 10 is arranged along a plurality of depth directions Y, and is laid in a planar shape. In addition, as shown to the dotted-line part of FIG. 1, when using a short plate-shaped member as the cover board 10a, it is also possible to extend the cover board 10a along the depth direction Y. As shown in FIG. In this case, the lining plate 10a is laid in a planar shape by being arranged along the plurality of width directions X.
Further, as shown in FIG. 2, a positioning notch 11 is formed on the back surface of the lining plate 10.

  FIG. 3 is a top view showing the frame portion 20 before the lining plate 10 is installed, and FIG. 4 is a top view showing the frame portion 20 alone. As shown in FIGS. 3 and 4, the frame portion 20 includes a pair of vertical joists 21 and 22 that extend along the width direction X, and a pair of vertical joists that extend along the depth direction Y. 21 and 22 have a pair of horizontal joists 23 and 24 respectively engaged with both ends. In addition, an auxiliary joist 29 parallel to the horizontal joists 23 and 24 is engaged with the center of the pair of vertical joists 21 and 22.

  As shown in FIG. 2, a fixing hole 25 for fixing to the cross beam portion 30 is formed on the lower surface of the vertical joists 21 and 22. Further, positioning pins 26 that engage with the notches 11 of the lining plate 10 are provided on the upper surfaces of the horizontal joists 23 and 24 at both ends thereof.

  Here, the pair of vertical joists 21, 22, the pair of horizontal joists 23, 24 and the auxiliary joists 29 are connected via a folding mechanism 50 that allows them to be folded. As shown in FIGS. 3 and 4, the folding mechanism 50 includes U-shaped connecting pieces 51 attached to both ends and the center of the vertical joists 21 and 22, the horizontal joists 23 and 24, and the auxiliary joists. A shaft 52 is attached to both ends of the joist 29 and is pivotally supported by the connecting piece 51. The horizontal joists 23 and 24 and the auxiliary joists 29 are arranged inside the connecting piece 51 as shown in FIG.

Then, when the pair of horizontal joists 23 and 24 and the auxiliary joists 29 are rotated along the horizontal plane via the folding mechanism 50 and one vertical joist 21 is brought closer to the other joists 22, As shown in FIG. 5, the vertical joists 21 and 22, the horizontal joists 23 and 24, and the auxiliary joists 29 are folded.
From the folded state shown in FIG. 5, the pair of horizontal joists 23, 24 and the auxiliary joists 29 are rotated along the horizontal plane again via the folding mechanism 50, so that one vertical joist 21 is replaced with the other joists 22. As shown in FIG. 4, the vertical joists 21 and 22, the horizontal joists 23 and 24, and the auxiliary joists 29 are developed.

  As shown in FIG. 2, the cross beam portion 30 is provided with a fixing screw 31 that is inserted into the fixing hole 25 of the vertical joists 21 and 22 and screwed.

  Further, as shown in FIG. 1, the home tip portion 200 extends along the longitudinal direction of the platform, and a plurality of tip frame portions 210 supported by the cross beam portion 30 are laid in a planar shape. The front cover plate 250 supported by the frame portion 210, the fixture 260 that fixes the front frame portion 210 and the front cover plate 250, and the support portion 40 that supports the front frame portion 210 are provided. I have.

  6 is a top view showing a schematic configuration of the tip frame portion 210, and FIG. 7 is a side view showing a schematic configuration of the tip frame portion 210 as seen from the VII-VII cutting line of FIG. The distal end frame portion 210 includes a plurality of frame members 220 and a fixing portion 230 for fixing the plurality of frame members 220 to the cross beam portion 30.

The frame material 220 has a concave shape in side view. The frame material 220 includes a main body portion 221 and an adjustment portion 222 attached to the distal end portion of the main body portion 221. The adjustment part 222 is attached to the main body part 221 so as to be extendable and contractible, thereby adjusting the overall length of the main body part 221. More specifically, a long hole 223 is formed at the tip of the main body 221. An engagement bolt 224 that engages with the elongated hole 223 is screwed into the adjustment portion 222. The entire length of the main body 221 can be adjusted by loosening the engagement bolt 224, expanding and contracting the adjustment portion 222 with respect to the main body 221, and fastening the engagement bolt 224 after reaching a predetermined length. It is like that.
In addition, the main body portion 221 is provided with a reinforcing member 227 that is connected to the main body portion 221 of another frame material 220 and increases rigidity. The reinforcing member 227 is installed in a place where the distance between the pair of frame members 220 is wide.

  The fixing unit 230 includes a support column 231 placed on the cross beam unit 30, a frame receiving unit 232 attached to the upper part of the support column 231 and receiving the frame material 220, and a square steel pipe 280 extending in the depth direction Y. And.

  The front cover plate 250 is a metal plate-like member, and is arranged so as to extend along the depth direction Y of the platform P as shown in FIG. The tip lining plate 250 is laid in a planar shape by being arranged along the plurality of width directions X. An engagement portion 251 with which the fixture 260 is engaged is provided at a predetermined location on the front cover plate 250.

  As shown in FIG. 7, the fixture 260 is formed of sheet metal and is locked to the frame material 220 and the fixing portion 230 of the distal end frame portion 210. An extension portion 261 extending substantially parallel to the tip cover plate 250 is formed on the upper portion of the fixture 260, and the extension portion 261 and the engagement portion 251 of the tip cover plate 250 are formed. And come to face each other. Then, by fastening both the extending portion 261 and the engaging portion 251 with the fixing screw 271 and the nut 272, the distal end frame portion 210 and the distal end lining plate 250 are fixed. If the fastening of the fixing screw 271 and the nut 272 is released, the fixing of the front end frame portion 210 and the front end cover plate 250 is also released, and the front end cover plate 250 can be removed.

  FIG. 8 is a side view showing a schematic configuration of the support part 40. As shown in FIG. 8, the support portion 40 is provided with a pedestal 41 on which the tip frame portion 210 is placed and a leg portion 42 that supports the pedestal 41. The leg portion 42 includes a fixed leg 43 fixed to the pedestal 41, a rotating leg 44 rotatably connected to the pedestal 41, and a middle bend attached to the lower ends of the fixed leg 43 and the rotating leg 44 An opening stopper 45 of the type is provided. By bending the opening stopper 45, the rotating leg 44 approaches the fixed leg 43 side, and the entire support part 40 is folded (see FIG. 9). A cylindrical engaging portion 46 is provided at the lower end of the fixed leg 43 and the rotating leg 44. A support portion 47 installed on the base is inserted into the engagement portion 46, and the protruding amount of the support portion 47 can be adjusted by adjusting the fixing position of both. The height position of the pedestal 41 can be adjusted by adjusting the protruding amount of the support portion 47.

Next, a girder type home construction method for converting the embankment type platform into a girder type home using the temporary lining structure 1 will be described.
First, before the renovation work of the platform P, a plurality of frames 20 and support sections 40 are carried in the vicinity of the refurbished portion in a folded state. Similarly, a plurality of the lining plate 10, the tip lining plate 250, and the tip frame portion 210 are also carried into the repair location.

  Then, the home decorative plate (not shown) is removed from the home portion 100 of the embankment platform P, and the front decorative plate (not shown) is removed from the home tip portion 200. The home decorative board is, for example, asphalt or tile, and the front decorative board is a non-slip clean tile, a warning board, or the like. After removal of each decorative board, as shown in FIG. 10, the support column 300 is embedded, the cross beam portion 30 is installed on the support column 300, and the removal position of the home decorative plate and the front decorative plate is removed. A plurality of cross beam portions 30 are arranged. At this time, a part of the block B forming the embankment platform P is removed, and the cross beam 30 is disposed in the removed portion. Thereby, the front-end | tip part of the cross beam part 30 is supported by the block B. FIG.

  After the installation of the cross beam 30, in the home unit 100, the frame unit 20 is developed, and is then passed over the adjacent cross beam 30. At this time, by inserting and fixing the fixing screw 31 of the cross beam portion 30 into the fixing holes 25 of the vertical joists 21 and 22 in the frame portion 20, the cross beam portion 30 and the frame portion 20 are fixed. And fix.

Thereafter, the plurality of lining plates 10 are laid in a planar shape on the frame portion 20. At this time, the notch 11 of the lining plate 10 is engaged with the positioning pins 26 of the frame portion 20 to position the lining plate 10. This is applied over the entire area to be repaired.
Further, in the home distal end portion 200, the distal end frame portion 210 is stretched over each cross beam portion 30, and then a plurality of distal end cover plates 250 are laid in a planar shape on the distal end frame portion 210.
Thus, if the lining board 10 and the front lining board 250 are laid, the next day's business is possible.

  Next, at the time of the next renovation work, as shown in FIG. 11, the blocks B other than the block B that supports the cross beam portion 30 are removed. A support part 40 is installed in the space formed by the removal, and the tip frame part 210 is supported by the support part 40. The lining plate 10 and the tip lining plate 250 are laid so that the next day's business is possible even after the support section 40 is installed.

  Next, at the time of the next renovation work, as shown in FIG. 12, the lining plate 10, the tip lining plate 250, the support portion 40, the frame portion 20 and the tip frame portion 210 are removed, and the cross beam The PC board 400 is stretched over the unit 30. Then, a new home decorative board (not shown) and a front decorative board 500 are laid on the PC board 400, whereby the repair work is completed.

As described above, according to the temporary platform structure 1 of the platform P of the present embodiment, since the frame portion 20 is foldable, compared to the conventional case where temporary lining is performed with square members, plywood, rubber mats, or the like. However, temporary lining can be performed in a short time.
Further, since the home portion 100 and the home tip portion 200 have separate structures, the home tip portion 200 can have a structure unique to the tip portion without being restricted by the home portion 100. Thereby, it can be set as a structure suitable for each of the home part 100 and the home front-end | tip part 200, and an operation | work can also be simplified according to it. Therefore, a short time for temporary lining is achieved.

Furthermore, since the support part 40 is also foldable, the installation time of the support part 40 can be shortened.
Further, since the reinforcing member 227 is spanned between the pair of frame members 220, the rigidity of the pair of frame members 220 can be increased.
Further, since the length of the frame material 220 can be adjusted, the length can be adjusted according to the conditions of the installation location.

In addition, since the adjustment portion 222 of the tip frame portion 210 is attached to the main body portion 221 so as to be extendable and retractable, the length of the tip frame 210 can be adjusted to correspond to the width of the installation location. .
In addition, since a fixture for fixing the tip frame portion 210 and the tip lining plate 250 is provided,

  Further, when the fastening of the fixing screw 271 and the nut 272 is released, the fixing of the tip frame portion 210 and the tip cover plate 250 is also released, and the tip cover plate 250 can be removed. Therefore, the tip lining plate 250 is detachable from the tip frame portion 210 after the tip decorative plate is removed until the PC plate 400 is laid. Since it is detachable as described above, it is possible to remove the tip lining plate 250 even after the tip lining plate 250 is installed.

Of course, the present invention is not limited to the above-described embodiment and can be modified as appropriate.
For example, the lining plate 10 and the tip lining plate 250 preferably have a height adjustment mechanism. Even when a step is generated in the home portion 100 and the home tip portion 200, the height difference can be eliminated by adjusting the heights of the lining plate 10 and the tip lining plate 250 using the height adjustment mechanisms.

Moreover, in the said embodiment, although demonstrated when exemplifying and supporting the case where the front-end | tip frame part 210 was supported using the support part 40, it is also possible to make a girder type home without using the support part 40. is there. Below, the girder type home construction method when not using the support part 40 is demonstrated.
First, before the repair work of the platform P, a plurality of folded frame portions 20 are carried in the vicinity of the repair location. Similarly, a plurality of the lining plate 10, the tip lining plate 250, and the tip frame portion 210 are also carried into the repair location.

  And the decorative board is removed from the embankment type platform P, the support | pillar 300 is embed | buried as shown in FIG. 10, and the cross beam part 30 is installed on the said support | pillar 300. FIG. At this time, a part of the block B forming the embankment platform P is removed, and the cross beam 30 is disposed in the removed portion. Thereby, the front-end | tip part of the cross beam part 30 is supported by the block B. FIG.

  After the installation of the cross beam 30, in the home unit 100, the frame unit 20 is developed, and is then passed over the adjacent cross beam 30. At this time, by inserting and fixing the fixing screw 31 of the cross beam portion 30 into the fixing holes 25 of the vertical joists 21 and 22 in the frame portion 20, the cross beam portion 30 and the frame portion 20 are fixed. And fix.

Thereafter, the plurality of lining plates 10 are laid in a planar shape on the frame portion 20. At this time, the notch 11 of the lining plate 10 is engaged with the positioning pins 26 of the frame portion 20 to position the lining plate 10. This is applied over the entire area to be repaired.
Further, in the home distal end portion 200, the distal end frame portion 210 is stretched over each cross beam portion 30, and then a plurality of distal end cover plates 250 are laid in a planar shape on the distal end frame portion 210.
Thus, if the lining board 10 and the front lining board 250 are laid, the next day's business is possible.

  Next, at the time of the next renovation work, as shown in FIG. 13, the uppermost block B is removed. Even after the removal, the lining plate 10 and the tip lining plate 250 are laid so that the next day's business is possible.

  Next, at the time of the next renovation work, as shown in FIG. 14, the lining plate 10, the tip lining plate 250, the frame portion 20, and the tip frame portion 210 are removed and The PC board 400 is handed over. Then, the repair work is completed by laying the decorative board 500 on the PC board 400.

DESCRIPTION OF SYMBOLS 1 Temporary home structure 10 Covering board 11 Notch 20 Frame part 21, 22 Vertical joist material 23, 24 Horizontal joist material 25 Fixing hole 26 Positioning pin 29 Auxiliary joist material 30 Horizontal girder part 31 Fixing screw 40 Supporting part 41 Base 42 Leg Part 43 Fixed leg 44 Rotating leg 45 Opening stop fitting 46 Engagement part 47 Support part 50 Folding mechanism 51 Connecting piece 52 Shaft body 100 Home part 200 Home tip part 220 Frame material 221 Main body part 222 Adjustment part 223 Long hole 224 Engagement Bolt 227 Reinforcement member 230 Fixing part 231 Supporting pillar 232 Frame receiving part 250 End cover plate 300 Post 400 PC board 500 Decorative board B Block P Platform X Width direction Y Depth direction

Claims (8)

In the temporary home structure used when turning the embankment platform into a girder platform,
A home portion and a home tip portion located on the track side from the home portion;
The home part is
A lining plate,
A frame portion for supporting the plurality of lining plates laid in a planar shape;
A cross beam extending along the depth direction of the platform and supporting the frame portion;
The frame part is
A pair of vertical joists extending along the width direction of the platform;
A pair of horizontal joists that extend along the depth direction and engage with both ends of the pair of vertical joists, and
By rotating the pair of horizontal joists along the horizontal plane, one vertical joist is brought into contact with and separated from the other vertical joists, so that the vertical joists and the horizontal joists can be folded. And a folding mechanism
The home tip is
A frame portion for a tip extending along the longitudinal direction of the platform and supported by the cross beam portion;
A temporary home structure comprising a plurality of flat laying plates and a tip lining plate supported by the tip frame portion. The temporary home structure according to claim 1 is:
The temporary home structure, wherein the home tip portion includes a support portion that supports the frame portion for the tip. In the temporary home structure according to claim 2,
Temporary home structure characterized in that the support part is foldable. In the temporary home structure as described in any one of Claims 1-3,
The frame portion for the tip includes a body portion having a concave shape when viewed from the side, and an adjustment portion attached to the tip portion of the body portion,
The temporary home structure, wherein the adjustment portion is attached to the main body portion so as to be extendable and contractible. In the temporary home structure as described in any one of Claims 1-4,
The temporary lining structure characterized in that the lining plate and the lining plate for the tip have a height adjusting mechanism. In the temporary home structure as described in any one of Claims 1-5,
A temporary home structure having a fixture for fixing the tip frame portion and the tip cover plate. In the girder type home construction method that turns the embankment type platform into a girder type home,
While removing the decorative plate for the home from the home portion in the platform, removing the decorative plate for the tip from the tip of the home located on the track side from the home portion,
With respect to the removal position of the decorative plate for the home and the decorative plate for the tip, a plurality of cross beam portions extending along the depth direction of the platform are arranged,
In the home portion, a foldable frame portion for supporting the lining plate is bridged on the adjacent cross beam portion, and then the lining plate is laid in a plurality of planes on the frame portion. And
In the home tip portion, the tip frame portion extending along the longitudinal direction of the platform is spanned over the cross beam portion, and then a plurality of tip lining plates are formed on the tip frame portion. Laying in
The lining plate, the lining plate for the tip, the frame portion and the frame portion for the tip are removed, a PC plate is stretched over the cross beam portion, and a new home decorative plate and A girder type home construction method characterized by laying a decorative veneer for the tip. In the girder type home construction method according to claim 7,
The girder-type home is characterized in that the leading edge lining board is detachable from the leading edge frame part after the leading edge decorative board is removed until the PC board is laid. Chemical method.

Images