JP6955657B2 - Floor panel for gantry - Google Patents

Description

The present invention relates to a gantry floor panel of a gantry used for the passage of vehicles and heavy machinery at a civil engineering site or the like.

At civil engineering sites, etc., a gantry will be provided for vehicles and heavy machinery to pass through. This gantry is a temporary gantry and is also used as a temporary storage place for scaffolding and various materials.

The gantry has a large number of columns erected at intervals in the left-right and front-rear directions, the adjacent columns are connected by horizontal members, and the horizontal members are connected by brace materials (braces). Further, a large underwriting is attached to the upper end of the column, and a large underwriting (beam) is hung between adjacent large underwritings with both end portions supported by the large underwriting. A plurality of joists are arranged at predetermined intervals in the longitudinal direction of the large pull between adjacent large pulls, and the joists are provided with scaffolding boards constituting the floor surface, for example, wooden or FRP (fiber reinforced plastic). Floor panels made of plastic, etc. are installed (see, for example, Patent Document 1 and the like).

Japanese Unexamined Patent Publication No. 2019-085966

However, in order to reduce the weight, when a scaffolding board such as wood is used instead of the metal scaffolding board, it is possible to withstand various loads applied to the gantry when vehicles and heavy machinery pass through. At present, it is difficult to further reduce the weight because a predetermined plate thickness is required to suppress strength and bending.

In view of the above circumstances, it is an object of the present invention to provide a floor panel for a gantry that can reduce the thickness of the scaffolding board and reduce the weight.

The gantry floor panel of the present invention that solves the above object is the gantry floor panel installed on the obiki and the prismatic joists arranged on the obiki in a posture orthogonal to the obiki.
A scaffolding plate having a rectangular shape in a plan view, and a plurality of horizontal reinforcing members fixed to the back surface of the scaffolding plate in a state of having the same height dimension as the joist and extending in a direction orthogonal to the longitudinal direction of the scaffolding plate. Have,
The scaffolding board is placed on the joist in a posture along the pulling.
The horizontal reinforcing material is characterized in that it is placed on the large pull in a posture along the joists.

Here, the floor panel for the gantry may be a floor panel on which a reinforcing or non-slip floor iron plate, a concrete panel, or the like is installed. Further, a plurality of the scaffolding plates may be connected in the lateral direction.

According to the floor panel for a gantry of the present invention, the scaffolding board is supported by a plurality of horizontal reinforcing members having the same height dimension as the joists in addition to the joists. That is, the scaffolding plate has a structure that is also supported by the horizontal reinforcing material between the joists. With this structure, it becomes easy to secure an allowable load, and the amount of bending can be reduced. This makes it possible to reduce the thickness of the scaffolding plate and reduce the weight.

Further, in the floor panel for a gantry of the present invention, it is preferable that the horizontal reinforcing material is installed in a state of being in contact with the side surface of the joist.

By doing so, the floor panel for the gantry can be positioned by the horizontal reinforcing material.

Further, in the gantry floor panel of the present invention, one of the preferred embodiments is that the plurality of horizontal reinforcing members include those that sandwich the joists in a direction orthogonal to the direction in which the joists extend.

If this aspect is adopted, the positioning state of the gantry floor panel can be further stabilized. In particular, even when the gantry floor panel is installed in an inclined posture, the gantry floor panel is less likely to shift.

Further, in the floor panel for a gantry of the present invention, the horizontal reinforcing material has an inclined surface at the lower end side portion so as to have an inclined surface in which the width in the direction orthogonal to the extending direction becomes smaller toward the lower end. May be good.

In the gantry floor panel, if the position and orientation of the horizontal reinforcing material fixed to the scaffolding plate or the position and orientation of the joists arranged in the large pull are deviated from the design, the gantry floor When installing the panel, the horizontal reinforcing material and the joist may interfere with each other, making it difficult to install the floor panel for the gantry. Therefore, if the horizontal reinforcing material having the inclined surface is adopted, it is possible to facilitate the installation of the floor panel for the gantry even if the position of the joists is displaced.

Further, in the floor panel for a gantry of the present invention, it is preferable that at least one of the scaffolding plate and the horizontal reinforcing material is made of foamed resin.

Here, the expanded resin may be a expanded polystyrene resin. The expansion ratio of the expanded polystyrene resin is preferably 1.5 to 3.0 times, more preferably about 2.2 times.

If at least one of the scaffolding plate and the horizontal reinforcing material is made of the foamed resin, the weight can be reduced and the cost can be suppressed as compared with the mode made of FRP. Further, as compared with the case of being made of wood, the weight can be reduced, the corrosion is less likely to occur, and the corrosion resistance can be significantly improved. Further, it is more easily bent and less likely to be cracked than when it is made of a normal resin.

Although the foamed resin is inferior to FRP in terms of strength, a sufficient allowable load can be secured by adopting the configuration of the present invention. When it is necessary to further improve the allowable load, such as when a large heavy machine runs, an iron plate, a concrete panel, or the like may be laid on the scaffolding plate.

According to the present invention, it is possible to provide a floor panel for a gantry that can reduce the thickness of the scaffolding board and reduce the weight.

It is a figure which shows the gantry to which the floor panel for the gantry of this invention is applied. FIG. 1 is an enlarged view showing a portion A surrounded by a two-dot chain line circle. It is a figure which shows by pulling out the floor panel for a gantry shown in FIG. It is a figure which shows by pulling out the horizontal reinforcing material shown in FIG. 2 and FIG. (A) is a diagram corresponding to FIG. 2 in the first modified example, and (b) is a diagram corresponding to FIG. 2 in the second modified example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing a gantry 9 to which the gantry floor panel 10 of the present invention is applied. Hereinafter, the floor panel 10 for the gantry may be abbreviated as the floor panel 10.

As shown in FIG. 1, the gantry 9 has an inclined floor surface (slope S) and a horizontal floor surface (horizontal plane L), and in the figure, the dump truck D travels from the slope S toward the horizontal plane L. , The state of climbing up to the horizontal plane L is conceptually shown.

The gantry 9 comprises a plurality of columns 91 erected at intervals in the left-right method and the front-rear direction (direction orthogonal to the paper surface), a horizontal member 92 connecting adjacent columns 91, and predetermined horizontal members 92. It has a brace material 93 to be connected. A large underwriter 94 is attached to the upper end of the support column 91. Between the adjacent large underwriters 94, the large underwriting 96 extending in the left-right direction is hung in a state where both ends thereof are supported by the large underwriting 94. Further, on the large pull 96, a predetermined interval (for example, 300 mm to 350 mm interval) is provided in the extending direction (longitudinal direction), and the joists 95 are orthogonal to the extending direction of the large pull 96 (front and back). It is arranged in a state of extending in the direction). The joist 95 is a prismatic one made of, for example, a 60 mm square pipe. Floor panels 10 constituting the floor surface are installed on the Ohiki 96 and the Joist 95. Although the figure in which the columns 91 are erected at intervals in the front-rear direction is omitted, the horizontal member 92, the brace member 93, and the large underwriting 94 are provided in the same manner as in the left-right direction.

FIG. 2 is an enlarged view of a portion A surrounded by a two-dot chain line circle in FIG. Further, FIG. 3 is a diagram showing the floor panel 10 shown in FIG. 1 extracted. 3A is a plan view of the floor panel 10, FIG. 3B is a front view of the floor panel 10, and FIG. 3C is a bottom view of the floor panel 10. (D) is a right side view of the floor panel 10. The rear view of the floor panel 10 is the same as the front view, and the left side view of the floor panel 10 is the same as the right side view, and thus is omitted.

As shown in FIGS. 2 and 3, the floor panel 10 has a scaffolding plate 3 having a rectangular shape in a plan view and a horizontally reinforcing member 5 having a substantially prismatic shape. In FIG. 2, the horizontal reinforcing member 5 is hatched in order to distinguish it from the joist 95. In the present embodiment, the scaffolding plate 3 and the horizontal reinforcing material 5 are made of a foamed resin having a foaming ratio of 2.2 times. Here, the foaming ratio is not particularly limited, but is preferably about 1.5 times to 3.0 times from the viewpoint of ensuring strength and reducing weight. The type of resin is not particularly limited, but polystyrene resin is preferable. One of the scaffolding plate 3 and the horizontal reinforcing member 5 may be made of foamed resin, and the other may be made of FRP, wood, or the like. As described above, if at least one of the scaffolding plate 3 and the horizontal reinforcing member 5 is made of foamed resin, the weight can be reduced and the cost can be suppressed as compared with the case where at least one of the scaffolding plate 3 and the horizontal reinforcing member 5 is made of foamed resin. Further, as compared with the case of being made of wood, the weight can be reduced, the corrosion is less likely to occur, and the corrosion resistance can be significantly improved. Further, it is more easily bent and less likely to be cracked than when it is made of a normal resin.

In the present embodiment, the scaffolding plate 3 has a length in the longitudinal direction (horizontal direction in FIGS. Two scaffolding plates 3 having a length (in the vertical direction in 3 (c)) of, for example, about 225 mm and a plate thickness of about 30 mm are connected in the lateral direction.

The horizontal reinforcing member 5 has the same height dimension (for example, 60 mm) as the joist 95, and the length is set to, for example, about 450 mm. In the present embodiment, eight horizontal reinforcing members 5 extend in a direction orthogonal to the longitudinal direction of the scaffolding plate 3, and at a predetermined interval in the longitudinal direction of the scaffolding plate 3, are placed on the back surface of the scaffolding plate 3. For example, it is fixed with screws. As shown in FIG. 2, in the floor panel 10, the scaffolding board 3 is placed on the joist 95 in a posture along the joist 96, and the horizontal reinforcing member 5 is placed on the joist 96 in a posture along the joist 95. NS. Hereinafter, the state in which the floor panel 10 is installed on the large pull 96 and the joist 95 shown in FIG. 2 may be referred to as an installation state. In the floor panel 10 in the installed state, the scaffolding board 3 is supported by a plurality of joists 95, and the horizontal reinforcing material 5 having the same height as the joists 95 is placed on the large pulling 96, so that the scaffolding board 3 is , Also supported by a plurality of horizontal reinforcing members 5. That is, the scaffolding plate 3 has a structure that is also supported by the horizontal reinforcing member 5 between the joists 95. With this structure, the scaffolding plate 3 can easily secure an allowable load and can reduce the amount of bending. As a result, it is possible to reduce the thickness of the scaffolding plate 3 by suppressing the plate thickness.

Further, in the present embodiment, the interval between the plurality of horizontal reinforcing members 5 is set by the arrangement of the joists 95. As shown in FIG. 2, the interval between the horizontal reinforcing members 5 will be described by taking as an example an embodiment in which five joists 95 are arranged on the large pull 96 with a predetermined interval (for example, an interval of about 300 mm). do. The horizontal reinforcing members 5 come into contact with the inner side surfaces of the joists 95 arranged at both ends of the large pull 96 in the longitudinal direction. Further, with respect to the three inner large pulls 96 in the longitudinal direction of the large pull 96, a pair of horizontal reinforcing members 5, 5 in the longitudinal direction of the large pull 96 (the direction orthogonal to the direction in which the joists 95 extend). Is in a state of sandwiching the joists 95 from both sides.

FIG. 4 is a diagram showing the horizontal reinforcing member 5 shown in FIGS. 2 and 3 extracted. FIG. 4A is a plan view of the horizontal reinforcing member 5, FIG. 4B is a front view of the horizontal reinforcing member 5, and FIG. 4C is a bottom view of the horizontal reinforcing member 5. , (D) is a right side view of the horizontal reinforcing member 5. The rear view of the horizontal reinforcing member 5 is the same as the front view, and the left side view of the horizontal reinforcing member 5 is the same as the right side view, and thus is omitted. Further, the front view of the horizontal reinforcing member 5 of FIG. 4B is shown in an enlarged manner surrounded by a chain line circle.

As shown in FIG. 4, the horizontal reinforcing member 5 has a side surface 52 including a vertical surface 521 hanging vertically from the upper surface 51 and an inclined surface 522 inclined from the lower end of the vertical surface 521 and connected to the lower surface 53. ing. The inclined surface 522 is provided on the lower end side portion of the horizontal reinforcing member 5, and is inclined so that the width in the direction orthogonal to the extending direction becomes smaller toward the lower side. Therefore, in the installation state shown in FIG. 2, the vertical surface 521 of the side surface 52 of the horizontal reinforcing member 5 comes into contact with the side surface of the joist 95. As a result, the floor panel 10 can be positioned, and the positioning state can be stabilized. Therefore, even the floor panel 10 constituting the slope S shown in FIG. 1 is less likely to be displaced. It is not necessary for all the horizontal reinforcing members 5 to come into contact with the joists 95, and a slight gap may be formed between the horizontal reinforcing members 5 and the joists 95. In addition, a slight gap may occur between the horizontal reinforcing member 5 and the joist 95 due to manufacturing errors, construction errors, etc., and the floor panel 10 constituting the slope S shown in FIG. 1 has a higher one. In some cases, only the horizontal reinforcing member 5 located at is in contact with the joist 95. In any case, the horizontal reinforcing member 5 may come into contact with the joists 95 as long as the positioning of the floor panel 10 is stable.

Further, since the horizontal reinforcing material 5 has an inclined surface 522, the position and posture of the horizontal reinforcing material 5 or the position and posture of the joist 95 may be deviated due to manufacturing errors, construction errors, and the like. However, the floor panel 10 can be easily installed.

It is not always necessary to sandwich all of the inner large pull 96 in the longitudinal direction of the large pull 96 with the horizontal reinforcing member 5. For example, in FIG. 2, the cross-hatched horizontal reinforcing member 5'can be omitted. be.

Next, a modified example of the floor panel 10 shown in FIGS. 1 to 4 will be described. In the modification described below, the differences from the embodiments shown in FIGS. 1 to 4 will be mainly described, and the constituent elements having the same names as the constituent elements in the embodiments shown in FIGS. 1 to 4 will be described. , The description will be given with the reference numerals used so far, and duplicate explanations may be omitted.

FIG. 5A is a diagram corresponding to FIG. 2 in the first modified example, and FIG. 5B is a diagram corresponding to FIG. 2 in the second modified example.

As shown in FIG. 5A, the floor panel 11 of the first modification has a large pull 96 (for example, about 1200 mm) having a shorter length in the longitudinal direction than the embodiment shown in FIG. 2, and four joists 95. It is installed in. The horizontal reinforcing material 5 sandwiches the horizontal reinforcing material 5 that comes into contact with the joists 95 arranged at both ends of the large pull 96 in the longitudinal direction and the two inner large pull 96s in the longitudinal direction of the large pull 96. It has a reinforcing material 5.

As shown in FIG. 5 (b), the floor panel 12 of the second modified example has a large pull 96 (for example, about 900 mm) having a shorter length in the longitudinal direction than the first modified example shown in FIG. 5 (a). It is installed in three joists 95. The horizontal reinforcing material 5 is a horizontal reinforcing material 5 that comes into contact with the joists 95 arranged at both ends in the longitudinal direction of the large pull 96 and a horizontal reinforcing material that sandwiches the central large pull 96 in the longitudinal direction of the large pull 96. Has 5 and. When the distance between the horizontal reinforcing members 5 is large as in the floor panel 12 of the second modification, the horizontal reinforcing member 5 is sandwiched between the horizontal reinforcing member 5 and the horizontal reinforcing member 5 as shown by the alternate long and short dash line. Material 5'' may be provided.

According to the floor panels 10, 11 and 12 of the present invention, it is possible to reduce the thickness of the scaffolding plate 3 and reduce the weight.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. For example, a reinforcing or non-slip paving iron plate, a concrete panel, or the like may be installed on the scaffolding plate 3 of the floor panel 10. In particular, when the scaffolding plate 3 is made of foamed resin and a heavy machine or the like provided with caterpillars travels, it is preferable to provide a member for protection or non-slip. Further, in the above embodiment, the embodiment in which the horizontal reinforcing material 5 is brought into contact with the joist 95 has been mainly described, but in terms of reducing the thickness of the scaffolding plate 3 and reducing the weight, the horizontal reinforcing material 5 is not necessarily brought into contact with the joist 95. You don't have to let it. Further, in the above embodiment, although the embodiment in which two scaffolding plates 3 are connected is adopted, one scaffolding plate 3 may be used, or three or more scaffolding plates 3 may be used.

It should be noted that even if the constituent requirements are included only in the above-described embodiment and the description of each modified example, the constituent requirements may be applied to the embodiment and other modified examples.

10, 11, 12 floor panels (floor panels for gantry)
3 Scaffolding board 5 Horizontal reinforcement 521 Vertical surface 522 Inclined surface 9 Structure 95 Joist 96 Large pull D dump truck

Claims (5)

In the floor panel for the gantry installed on the obiki and the prismatic joists arranged on the obiki in a posture orthogonal to the obiki.
A scaffolding plate having a rectangular shape in a plan view, and a plurality of horizontal reinforcing members fixed to the back surface of the scaffolding plate in a state of having the same height dimension as the joist and extending in a direction orthogonal to the longitudinal direction of the scaffolding plate. Have,
The scaffolding board is placed on the joist in a posture along the pulling.
The floor panel for a gantry is characterized in that the horizontal reinforcing material is placed on the large pull in a posture along the joists. The floor panel for a gantry according to claim 1, wherein the horizontal reinforcing material is installed in a state of being in contact with the side surface of the joist. The floor panel for a gantry according to claim 1 or 2, wherein the plurality of horizontal reinforcing members include those that sandwich the joists in a direction orthogonal to the direction in which the joists extend. 3. The floor panel for the gantry according to any one of the items. The floor panel for a gantry according to any one of claims 1 to 4, wherein at least one of the scaffolding plate and the horizontal reinforcing material is made of foamed resin.

Images